Tenaga Nasional Berhad

Vision 

To be among the leading corporations 

in energy and related businesses globally 

Mission 

We are committed to excellence 

in our products and services 

Shared values 

Our shared values provide us with 

a principle that will shape our 

business ethics and operations 

q 

q 

q 

q 

Customer first 

Business excellence 

Integrity 

Caring 

TENAGA 

NASIONAL B E R H A D

Acknowledgement 

Tenaga Nasional Berhad would like to acknowledge those that have 

actively contributed towards this effort in revisiting the TNB’s Supply 

Application Handbook initially launched in 2001. 

In our endeavor to provide more effective and efficient service to our 

customers, your inputs have been of tremendous help to us to further 

improve and add more substance to the initial First Edition. 

Special thanks to Federation of Malaysia Consumers Association 

(FOMCA), Federation of Malaysian Manufacturers (FMM), Association of 

Consulting Engineers of Malaysia (ACEM), The Electrical and Electronics 

Association of Malaysia (TEEAM), Real Estate and Housing Developers’ 

Association (REHDA) and Jabatan Kerja Raya (JKR) for their written 

comments and all others that have contributed in more ways than one to 

the publication of the 2 nd Edition of the Supply Application Handbook. 

 

TENAGA 


CONTENTS 

SUPPLY APPLICATION 

1.0 Tenaga Nasional Berhad Electricity System ........................................................................5 

2.0 Supply Application for Load up to 100kVA ......................................................................2 

3.0 Supply Application for Load Exceeding 100kVA ............................................................. 

............................................................. 14 

4.0 Application Process for Streetlight ....................................................................................20 

CONNECTION GUIDELINES 

1.0 Planning for Connection ....................................................................................................22 

2.0 Planning and Design Criteria .............................................................................................29 

3.0 Demand Estimation ...........................................................................................................42 

4.0 Supply Schemes .................................................................................................................44 

METERING GUIDELINES 

1.0 General ............................................................................................................................51 

2.0 Single Phase Metering .......................................................................................................51 

3.0 Three Phase Whole Current Metering ...............................................................................54 

4.0 Group Metering For Whole Current Metering ..................................................................55 

5.0 LVCT Metering ..................................................................................................................56 

6.0 Medium and High Voltage Metering .................................................................................58 

GLOSSARY AND DEFINITIONS ...........................................................................................63 

APPENDIX .................................................................................................................................69 

TENAGA 


CONTENTS 

1.0 TENAGA NASIONAL BERHAD ELECTRICITY SYSTEM.......................................5 

1.1 Introduction ..........................................................................................................................5 

1.2 Distribution Division ...........................................................................................................5 

1.3 Kedai Tenaga .......................................................................................................................6 

1.4 Voltages ...............................................................................................................................7 

1.5 Supply Frequency ................................................................................................................7 

1.6 Earthing System ...................................................................................................................7 

1.7 Short Circuit Ratings ...........................................................................................................7 

1.8 Act, Regulation and Code ....................................................................................................8 

1.9 Supply Voltage Options .......................................................................................................8 

1.10 Types of Supply Application ...............................................................................................9 

1.11 Consumer Standby Supply ..................................................................................................9 

1.12 Alternative Source of Supply ..............................................................................................9 

1.13 Provision of Temporary Supply ........................................................................................0 10 

1.14 Single Tenant Premise .......................................................................................................0 10 

1.15 Multi Tenanted Premises ...................................................................................................0 10 

1.16 Turnkey Projects ...............................................................................................................0 

...............................................................................................................10 

1.17 Connection Charges...........................................................................................................10 

1.18 Tariff .................................................................................................................................. 

..................................................................................................................................11 

1.19 Request for Additional or Special Features ....................................................................... 

.......................................................................11 

1.20 Service Level Agreement (SLA) .......................................................................................11 

....................................................................................... 

2.0 SUPPLY APPLICATION FOR LOAD UP TO 100kVA ........................................... 12 

2.1 Purpose .............................................................................................................................. 

..............................................................................................................................12 

2.2 What the Applicant Should Do ..........................................................................................12 

.......................................................................................... 

2.3 What the Electrical Contractor Should Do ........................................................................ 

........................................................................12 

2.4 TNB Supply Lead Time .................................................................................................... 

....................................................................................................13 

2.5 Dispute Between Applicant and Electrical Contractor ......................................................13 

...................................................... 

3.0 SUPPLY APPLICATION FOR LOAD EXCEEDING 100kVA ..............................14 

3.1 Purpose .............................................................................................................................. 

.............................................................................................................................. 14 

3.2 Application Process ........................................................................................................... 

........................................................................................................... 14 

3.3 Application Parts ............................................................................................................... 

............................................................................................................... 14 

Part A : Authorities Approval Process ............................................................................. 

............................................................................. 14 

Part B : TNB Technical & Financial Approval Process ...................................................5 15 

3.4 What The Applicant Should Do ........................................................................................6 16 

3.5 Supply Project Lead Time .................................................................................................7 17 

3.6 What The Electrical Consultant Engineer Should Do .......................................................8 18 

3.7 Dispute Between Applicant and Electrical Consultant Engineer ......................................9 19 

4.0 APPLICATION PROCESS FOR STREETLIGHT ....................................................20 

4.1 Purpose ..............................................................................................................................0 20 

4.2 Types of Applications ........................................................................................................0 20 

4.3 Application by Developer ..................................................................................................0 20 

4.4 Application by Individuals/ Local Authority/Government Authority ...............................20 

 

TENAGA 


1.0 TENAGA NASIONAL BERHAD ELECTRICITY SYSTEM 

1.1 Introduction 

The Tenaga Nasional Berhad (TNB), a public listed company registered under Companies Act 1965, is charged 

with the following responsibilities 

• To generate, transmit, distribute and sell energy to consumer throughout Peninsular Malaysia. 

• To plan, install, operate and maintain electricity installation for the generation, transmission and distribution 

of electricity. 

To achieve the above objectives, the company owns and operate power plants and the National Grid, and 

installed for this purpose, consumer service centres, call management centres, substations and administrative 

offices throughout Peninsular Malaysia. TNB’s core activities are in generation, transmission and distribution 

of electricity which are being handled by 3 Divisions : 

• Generation Division 

• Transmission Division 

• Distribution Division 

1.2 Distribution Division 

Distribution Division supplies electricity in strict accordance with the provisions of the Electricity Supply Act 

1990, the Licensee Supply Regulations 1990 and the Electricity Regulations 1994 (and all amendments thereto). 

Distribution Division is divided into 2 main regional operational areas where operational efficiency is further 

enhanced through the creation of 2 main regional areas, headed by the respective Senior General Managers 

which covers : 

Area 

Region 1 

Region 2 

States 

Selangor, Wilayah Persekutuan, Putrajaya/Cyberjaya, 

Negeri Sembilan, Melaka and Johor 

Perlis, Kedah, Pulau Pinang, Perak, 

Pahang, Terengganu and Kelantan 

The States are comprised of main jurisdiction areas under the care of Area Managers. Some areas have smaller 

jurisdiction areas and are managed by Branch Managers. All district offices (areas and branches) have one or 

more Kedai Tenaga under their jurisdiction. 

Kedai Tenaga provides functions pertaining to Application for Supply, Billing & Collection, Upgrading of 

Services and other consumer related activities. 

The technical aspects of the operations of the areas include planning, designing, construction, and system 

operation and maintenance that delivers supply to the Consumer. 

The support departments at the headquarters include Finance, Engineering, Human Resource Management, 

Materials Resource Management, Strategic Management and Organisational Development and Consumer 

Services and Marketing. 

TENAGA 


1.3 Kedai Tenaga 

Kedai Tenaga is TNB’s Service and Advisory Centre. It provides TNB’s consumers with Consumer Service 

and Elektrik Bestari, TNB’s first branded service that provides electricity advisory service for the home. There 

are 145 Kedai Tenaga centres throughout Peninsular Malaysia at your service. Please refer to Appendix 1 for 

complete information on Kedai Tenaga centres throughout Peninsular Malaysia. This list is subject to changes 

and may be reviewed from time to time. 

Kedai Tenaga is where TNB as a caring and friendly utility touches base with its consumers. At Kedai Tenaga, 

you may experience directly our value-added services which we have specially made available to you, our 

valued consumers. Services provided at Kedai Tenaga include: 

a) One stop payment counter for all electricity and other utility bills. 

• Come and meet our friendly personnel who will handle all your utility bills transactions. 

Payment can be made by cash, cheque or credit card. 

• You can also make arrangements to have your electricity bills paid through banks or 

ATM cards. 

• TNB, being a caring company, is always concerned about elderly and handicapped consumers 

who have genuine problems in settling their bills due to financial difficulties. TNB is aware of 

the difficulties encountered and special arrangements can be made for easy payment schemes 

for this group of people. 

b) Electricity supply application 

• At Kedai Tenaga, we offer you advice on all matters pertaining to your supply application. 

• For wiring purposes in your house, you may choose from a varied selection of contractors 

from our directory of registered electrical contractors. This directory enables you to select a 

contractor who is base close to your home. It ensures further efficiency and convenience. 

• We help you to find out the requirements for supply application in your home. 

c) Inquiries pertaining to billing and others. 

• Come and visit us to discuss or obtain further clarification on any billing inquiries that you 

have. Our front line staff will be happy to help you in resolving any problems you might have 

with these inquiries. 

d) TNB also offers the following services to its valued consumers: 

• Appointments to have the meter read in case the premises are locked during working hours. 

• Meter change if consumers suspect that the meter is faulty. If a consumer feels that the meter is 

not recording accurately, a written application should be submitted to have the meter tested. A 

fee of RM5 will be charged. However, if upon testing the meter it is found that the inaccuracy 

is more than 3%, the meter will be replaced and the testing fee of RM5 will be refunded. 

• Reconnection of supply to consumers’ premises if the supply is disconnected due to change of 

tenancy (if the premises have been vacant for more than 2 months) or nonpayment bill. For 

disconnection due to nonpayment of electricity bills, outstanding balances need to be paid 

before electricity supply can be reconnected. 

• Disconnection of supply if there is a change of tenancy. 

 

TENAGA 


e) Elektrik Bestari 

TNB provides electricity advisory for the home. Our Kedai Tenaga has an Elektrik Bestari corner which provides 

consumers with basic information on energy efficiency, safety and related topics. For enquiries on electricity 

advisory, consumers may enquire at any nearest Kedai Tenaga. 

1.4 Voltages 

The transmission voltage networks are 500kV, 275kV and 132kV, whilst the distribution voltages are 33kV, 

11kV and 415/240 Volts. However, in the case of certain parts of Johor & Perak the distribution voltages may 

also include 22kV and 6.6kV. 

1.5 Supply Frequency 

The supply frequency is 50Hz ± 1%. 

1.6 Earthing System 

High Voltage and Extra High Voltage 

• 3 phase configuration 

• solidly earthed or impedance earthed 

• overhead lines and underground cable are used extensively for high and extra high voltage distribution 

Low Voltage 415/240V 

• 3 phase 4 wire system 

• neutral point solidly earthed mixture of overhead lines, underground cables and aerial insulated cables 

• mixture of overhead lines, underground cables and aerial insulated cables 

1.7 Short Circuit Ratings 

As a guide, the maximum fault levels for the various voltage systems are as follows. All equipment proposed to 

be installed and connected to TNB supply must comply with the stated short circuit ratings: 

System 

Short circuit rating for 3s 

i. 500kV 50 kA 

ii. 275kV 40 kA 

iii. 132kV 31.5 kA 

iv. 66kV 20 kA 

v. 33kV 25 kA 

vi. 22kV 20 kA 

vii. 11kV 20 kA 

viii. 6.6kV 

20 kA 

ix. 415/240 V 31.5 kA 

TENAGA 


1.8 Act, Regulation and Code 

The electricity supply and installation practice in Peninsular Malaysia are governed by the following :- 

1 Electricity Supply Act 1990 – Act 447 

2 Licensee Supply Regulations 1990 

3 Electricity Regulations, 1994 

4 Occupational, Safety & Health Act 1994 

5 Malaysian Standard MS IEC 60364 Electrical Installation of Buildings 

1.9 Supply Voltage Options 

Supply may be provided at any of the declared voltages :- 

275 kV, 132kV, 33kV, 22 kV*, 11kV, 6.6 kV* and 415/240V. Generally, supplies to domestic premises are 

given at single phase 2-wire or three phase 4-wire. However, the actual supply voltage provided depends on the 

magnitude of the individual applicant’s load requirements :- 

Low Voltage 

i. Single-phase, two-wire, 240V, up to 12 kVA maximum demand 

ii. Three-phase, four-wire, 415V, up to 45 kVA maximum demand 

iii. Three-phase, four-wire, C.T. metered, 415V, up to 1,000 kVA maximum demand 

Medium Voltage & High Voltage 

i. Three-phase, three-wire and 11kV for load of 1,000 kVA maximum demand and above 

ii. Three-phase, three-wire, 22kV or 33kV for load of 5,000 kVA maximum demand and above 

iii. Three-phase, three-wire, 66kV, 132kV and 275kV for exceptionally large load of above 25 MVA maximum 

demand 

It should be noted that voltages other than the above classifications couldn’t be provided by TNB. However, 

consumers can make their own transformation arrangements where necessary. 

∗ System for certain parts of Johor and Perak only. 

 

TENAGA 


1.10 Types Of Supply Application 

All new applications and upgrade of supply requirement can be classified into three (3) types of supply 

applications. 

1) Supply Application For Load Up To 100kVA 

• Supply usually from existing supply mains 

• Submission of applications to TNB by Electrical Contractor registered with the Energy Commission 

• Connection of supply may take a maximum of 3 weeks upon approval from the local authorities 

2) Supply Application For Load Exceeding 100kVA 

• Supply may require establishment of new substation/substations 

• Submission of applications to TNB by Consultant Engineer 

• Connection of supply may take a minimum of 6 months depending on the extent of electrical infrastructure 

required and approval from the local authorities 

3) Supply Application For Streetlight 

• Application made by the local authority/government department 

• Application by developer 

• Application by individual 

For any supply involving co-generating, a separate licence need to be obtained from the relevant governing 

authority. 

1.11 Consumers Standby Supply 

Standby generator(s) may be used by the applicant at their premises, subject to compliance with the relevant 

laws. The generators shall remain a separate system from TNB distribution system and the applicant shall 

declare to TNB on the safe installation of the generator(s). 

This may be used in place of TNB’s supply source through a suitable, approved changeover facility under 

emergency conditions. The Energy Commission and other relevant authorities govern the generators and standby 

supply. 

1.12 Alternative Source of Supply 

A large consumer may require an alternative source of supply. TNB will provide such alternative supply at an 

additional cost. 

 

TENAGA 


1.13 Provision Of Temporary Supply 

Temporary supply can be installed for a period of 6 months. Supply is intended for purposes of electric supply for 

temporary work site, festivals and celebrations. The applicant shall provide a suitable corridor for installation of 

supply mains and site for metering point. The meter will be installed at a meter board provided by the applicant. 

The Electrical Contractor shall test the installation. 

If the requirement exceeds 6 months, the approval shall be subject to availability of supply 

Application for temporary supply shall be separately submitted, stating the load requirements. The applicant 

will be charged full cost and according to the appropriate tariff plus an additional 33% surcharge on the total 

monthly bill. 

1.14 Single Tenant Premises 

If the supply is for a single tenant only (the owner, the developer or the landlord) then the entire supply will 

be metered at the applicant’s incoming switchboard. The consumption will be charged at the appropriate tariff 

rates. 

1.15 Multi Tenanted Premises 

If the supply is for multi tenanted premises where part of the supply is intended for the owner, developer or 

landlord, and the rest for the tenants in the building, the landlord’s supply and each of the tenant’s supplies will 

be separately metered and billed by TNB. 

The owner, developer, or landlord shall provide, own, maintain and repair at his own expense the electrical 

systems in the buildings including adequate and necessary rising and lateral mains. The design, installation and 

operating of such electrical systems shall comply with requirements of all the relevant authorities including the 

Energy Commission’s and TNB’s. 

1.16 Turnkey Projects 

In certain cases, the applicant may apply to undertake the planning and installation of the electrical systems 

(including overhead lines, switchgears, cables, based on TNB’s specifications and requirements) with the 

assistance of Electrical Consultant Engineer(s) and Electrical Contractor(s). Under the ‘turnkey’ concept the 

applicant will then hand over the entire electrical system to TNB. A separate discussion on this will have to be 

conducted with TNB. 

1.17 Connection Charges 

Please refer to the Statement of Connection Charges booklet available at the Kedai Tenaga. The booklet is 

subjected to change as may be published from time to time. 

10 TENAGA 


1.18 Tariff 

Please refer to the Tariff booklet available at the Kedai Tenaga. Tariffs are subjected to change as may be 

published from time to time and approved by the Minister of Energy, Water and Telecommunication 

1.19 Request For Additional Or Special Features 

Any request for additional or special features eg special request for an additional feeder by applicant, the 

applicant will have to pay the full cost of the additional request. 

1.20 Service Level Agreement (SLA) 

Offer is open to all housing developers to enter into a Service Level Agreement (SLA) with TNB when applying 

for electricity supply for housing development (as prescribed under the Housing Development (Control and 

Licensing) Act 1966). The scope of the SLA includes the time frame process for connection of supply and the 

duties and obligation by TNB and housing developers in ensuring the electricity supply is connected to the 

housing projects within the stipulated time to avoid delays in handing over houses to the purchaser. 

Please refer to the Kedai Tenaga for details on the SLA. 

11 

TENAGA 

NASIONAL B E R H A D 

11

2.0 SUPPLY APPLICATION FOR LOAD UP TO 100kVA 

2.1 Purpose 

The application for the supply of electricity with load up to 100kVA which is for a 3 phase low voltage system 

is outlined here. 

2.2 What The Applicant Should Do 

The applicant should take the following steps to apply for supply of electricity up to 100kVA for a 3-phase 

low voltage system. 

Steps Action Reference 

1 

Appoint an Electrical Contractor who is registered with The Energy 

Commission, who will act on their behalf and submit the application for the 

applicant using the Supply Application Form available at Kedai Tenaga. 

The Electrical Contractor must be 

registered with the Energy Commission 

2 Settle connection charges billed by TNB through the Electrical Contractor 

Statement of Connection Charges 

booklet available at any Kedai Tenaga 

3 

After completion of TNB’s work (before installation of meter), the 

applicant shall: 

• Deposit a sum of money equivalent to 2 months bill or as reviewed from 

time to time. For deposit of more than RM2,000, the applicant can settle 

either in cash or Bankers Guarantee 

• Sign electricity supply contract with TNB through the appointed 

Electrical Contractor 

Tariff booklet available at the nearest 

Kedai Tenaga 

2.3 What The Electrical Contractor Should Do 

The Electrical Contractor appointed by the applicant should take the following action: 


1 Submit application for the applicant using the Supply Application Form 

available at Kedai Tenaga. 

All documents in checklist must be completed, duly endorsed by the 

appropriate competent person(s) of the appropriate category and attached 

with the application. 

Appendix 3 

2 After TNB has : 

• validated compliance to checklist 

• conducted analysis of supply connection 

• reviewed connection charges and issue bill to contractor 

Statement of Connection 

Charges Booklet available 

at any Kedai Tenaga 

The applicant shall settle connection charges to TNB. 

3 After TNB has implemented work on site, the Electrical Contractor shall: 

• Submit G and H form certifying the internal installations 

have been tested 

• Arrange for applicant to sign supply contract with TNB 

• Arrange appointment for meter installation with TNB 

Tariff Booklet available at nearest 


12 TENAGA 


2.4 TNB Supply Lead Time 

The flowchart for the application process is as outlined in Appendix 2. TNB supply lead-time will take up to 3 

weeks depending on the approval from the local authorities. 

2.5 Dispute Between Applicant And The Electrical Contractor 

In the event of a dispute between the applicant and the Electrical Contractor and the applicant wishes to terminate 

the services of the Electrical Contractor, the applicant shall duly notify the Electrical Contractor concerned in 

writing with the copy extended to TNB. TNB shall not be a party to any dispute or litigation arising thereof. 

13 

TENAGA 


13

3.0 SUPPLY APPLICATION FOR LOAD EXCEEDING 100kVA 

3.1 Purpose 

To explain the process for supply application with load exceeding 100kVA. 

3.2 Application Process 

The application process incorporates not only TNB requirements but taking into account the Government 

Development Plan Approval Process in Peninsular Malaysia (except Wilayah Persekutuan Kuala Lumpur and 

Putrajaya) issued by the Bahagian Perancangan Dasar & Pembangunan Kementerian Perumahan dan Kerajaan 

Tempatan: 2002 Edition. 

The inclusion of the said Government procedure shall ensure : 

• Infrastructure planning and approval process of the TNB complements the National Policy 

• TNB as a member Agency of the Government Development Plan Committee has to ensure complete 

transparency of its process through timely responses to Development Plan Approval Process 

• TNB Supply Application Process ensures complete agreement of Distribution Division’s plans and the 

Consultant Engineers submissions especially on the location and size of substations needed for the supply 

of electricity to the development area, and is valid for 2 years after the approval from the Jabatan Perancang 

Bandar & Desa (JPBD). 

3.3 Application Parts 

There are two parts to the application : 

Part Function Reference 

A Requirement of Approval from the Government’s Development Plan Approval Process Appendix 4 & 5 

B TNB Application Requirement after completion of Part A Appendix 7 

PART A : Authorities Approval Process 

The part A process approval that involves TNB’s technical comments is as shown in Development Plan Approval 

Process in Appendix 4 & 5. At each application process, TNB requires a processing time of up to 10 days to 

complete the comments for Jabatan Perancang Bandar & Desa (JPBD). The main process can be summarised 

as follows : 

Stage 

Description 

1 Submit Development Plan 

The Consultant Engineer submits development plan application for the proposed development to JPBD. 

All plans must be prepared by a licensed surveyor. 

The comments from all relevant technical agencies including TNB are required prior to approval by JPBD. 

14 TENAGA 


Stage 

Description 

2 TNB Register Application 

The Consultant Engineer/JPBD submits application to TNB complete with required details as in Checklist 

in Appendix 6. TNB will: 

• Acknowledge receipt and gives a file number, which is used as reference in any dealings with TNB. 

Study the proposal. Match the existing system network and determine method of supply. 

3 Mutual Understanding Of Plan 

Both TNB and Consultant Engineer will conduct discussion to agree to technical requirement such as 

substation number, size, location, site and consumers main switch room. 

In case of a dispute on TNB proposal, the Consultant Engineer shall refer to the relevant State General 

Managers. A discussion shall be arranged by the relevant State General Managers to arrive at an agreement. 

4 TNB Submit Comments to JPBD 

TNB submit to JPBD the proposed development plans including all technical comments using TNB official 

stamp as required by JPBD. 

JPB approves the proposed development plan. The validity is subjected to: 

- confirmation of layout details and precomputation plans 

- no changes in development 

- 2 years extension 

5 TNB Application for Electricity Supply above 100KVA process starts 

(Part B) 

PART B : TNB Technical & Financial Approval Process 

Part B process is the TNB Application Process for Electricity Supply above 100 KVA as outlined in Appendix 

7. The process starts after the completion of Part A (Authorities Approval Process). The Process in Part B can 

be summarised as follows: 

Stage 

1 Submit Application 

Description 

The Electrical Consultant Engineer submits application for the Electricity Supply to the nearest Kedai 

Tenaga. Complete details as in Appendix 6 must be submitted with the application. 

TNB will issue an acknowledgement letter to the Electrical Consultant Engineer as in Appendix 8 using the 

same file reference given during Part A (Authorities Approval Process). 

2 Documentation Check And System Study 

TNB will advise on the necessary amendment 15 to the consultant by telephone or letter. The Electrical 

Consultant Engineer is to ensure that all the amendments are done and resubmitted to TNB. 

TENAGA 


15

Stage 

3 Joint Meeting 

Description 

TNB will restudy the amendments and arrange for a joint meeting with the Electrical Consultant Engineer 

for final acceptance of the technical requirements. Activities of both parties will be recorded in the Joint 

Meeting Action Log as in Appendix 9. 

4 Connection Charges 

TNB will issue a Notice of Connection Charges to the Electrical Consultant Engineer as per Appendix 10. 

5 Electricity Infrastructure Agreement (Optional) 

The applicant may decide to enter into an Electricity Infrastructure Agreement with TNB with regard to 

TNB scope of work, charges and timely connection. 

6 Discussion And Preparation Of Site Work 

After payment of connection charges, the Electrical Consultant Engineer will arrange for pre start work 

discussion and site and substation building hand over. 

7 Construction Completion And Substation Energising 

TNB will manage the construction work and is responsible for the commissioning of substations. The 

energising of supply by TNB will normally be done at the same time as the installation of the meters. For 

HV supply, the supply shall be energised in the presence of the Electrical Consultant Engineer and for LV 

consumers in the presence of the Electrical Contractor. 

8 Supply Application By The Electrical Contractor 

The Consultant Engineer advises the Electrical Contractor to submit supply application for load requirement 

up to 100kVA, normally for individual applicant. The process is the same as outlined in Section 2. 

3.4 What The Applicant Should Do 

The applicant should take the following action in applying for supply application for load exceeding 

100KVA. 


1 • Appoint one () Electrical Consultant Engineer for each supply application 

Appendix 11 

• Submit an appointment letter of the Electrical Consultant Engineer allowing him 

to act on behalf of the applicant to TNB. 

16 TENAGA 



2 After approval from JPBD and TNB completion of work plan, the applicant settles 

connection charges to TNB at any Kedai Tenaga. 

The applicant may decide to enter into an Electricity Infrastructure Agreement with 

TNB with regard to TNB scope of work, charges and timely connection. 

Statement of 

Connection Charges 

Booklet available at 


3 • Provide the substation(s) land and building(s) to TNB by: 

- Leasing the substation land at a nominal value of RM10.00 to TNB, or 

- Transfer the substation land at a nominal value of RM10.00 to TNB 

• The Certificate of Fitness of the substation building/compartment shall be 

handed to the TNB. 

Statement of 

Connection charges 

booklet available at 


The transfer of the land title should be finalised prior to the handing over of site. 

In the absence of the land title, the applicant is to prepare a Bank Guarantee for 

TNB for the period of twelve () months and shall be renewed until the land title is 

transferred to TNB or registration of lease to TNB 

Delay in title transfer may affect project implementation. TNB have the right to use 

the substation to supply electricity to other consumers. 

4 Applicants are required to: 

• Deposit a sum of money equivalent to 2 months bill or as reviewed from time to 

time. For deposit of more than RM 2,000, the applicant can settle either in cash 

or Bankers Guarantee. 

• Sign electricity supply contract with TNB through the appointed Electrical 

Contractor. 

3.5 Supply Project Lead Time 

The lead-time for supply connection depends on a number of factors including the type of premises, the electrical 

load required and the location of the premises and approval of the local authorities. 

Applicants should submit their applications for supply as early as possible giving the necessary information of 

their requirements to the nearest Kedai Tenaga. They must also inform TNB of the progress of their project(s). 

The above measures are necessary to ensure that TNB’s supply projects are coordinated with the construction 

and wiring installation at the applicants’ premises, and thus avoid any delay in connection of supply. The typical 

supply project lead time required by TNB is as follows: 

17 

TENAGA 


17

Requirement 

Supply Project Typical Lead Time 

132 kV and above 3 years – 5 years 

33 kV 18 months - 2 years 

11 kV 6 months – 12 months 

415 V and below Less than 6 months 

3.6 What The Electrical Consultant Engineer Should Do 

The Electrical Consultant Engineer plays a major role to represent the applicant and ensure compliance with 

other relevant government departments and TNB. The Electrical Consultant Engineer is advised to observe the 

steps as outlined below: 

Steps 

1 

Action 

• Submits application for the proposed development to JPB and TNB 

• All plans must be prepared by a Licensed Surveyor 

Liaise with TNB to come up with a mutual understanding of plan and to get approval by JPBD 

Submits application for the electricity supply to Kedai Tenaga. 

Complete details as outlined in Appendix 6 and 12 must be submitted with the application. The application must be 

accompanied by 3 copies of the following :- 

2 

i) Location plan 

ii) Site plan showing the lot number(s) 

iii) The plan of the proposed substation (when relevant) 

iv) The proposed electrical wiring system designs 

v) The proposed consumer’s switchroom (where applicable) 

vi) The approval of the building plans by the relevant Authorities 

• Clearly state details of the applicants supply requirements. 

Provide a comprehensive description of the proposed development and a list including all detail of the connected 

loads, motors/appliances, the associated ratings, type of motor starter and their arrangements (where applicable). 

• Submit the metering requirements for CT Meters as in Appendix 20. 

3 Ensure that all the amendments are complied with and resubmitted to TNB. 

4 

5 

• Ensure that the applicants main switchroom shall be located adjoining the TNB’s substation or as mutually agreed 

to be most appropriate under the specific design 

• Provide appropriate cable trenching from the TNB’s substation to the main switchroom and a panel/cubicle for 

metering or a free standing meter cubicle in the case of high voltage installation in the consumer’s switchroom or 

substation 

• Ensure that consumer switchgears, control gears, transformers, relay panels, switchboards, metering current 

transformer, potential transformer etc. to be connected to TNB’s system must be approved by the Energy 

Commission. 

• Appoint an Electrical Contractor for wiring up the premises 

• Provide installation test results and protection settings for all CT metered applicants. 

6 Ensure that the wiring and the installation work of applicant’s equipment shall be supervised by competent person(s). 

18 TENAGA 


Steps 

7 

8 

Action 

Advise applicant to submit application form through registered Electrical Contractor. The process is the same as outlined 

in Section 2. 

Advise applicant to deposit a sum of money equivalent to 2 months bill or as reviewed from time to time. For deposit of 

more than RM2,000 the applicant can settle either in cash or Bankers Guarantee. 

3.7 Dispute Between Applicant And Electrical Consultant Engineer 

In the event of a dispute between the applicant and the Electrical Consultant Engineer and the applicant wishes 

to terminate the services of the Electrical Consultant Engineer, the applicant shall duly notify the Electrical 

Consultant Engineer concerned in writing with the copy extended to TNB. TNB shall not be a party to any 

dispute or litigation arising thereof. 

19 

TENAGA 


19

4.0 Application Process for Streetlight 

4.1 Purpose 

This procedure outlines the process for the application for streetlight. 

4.2 Types of Applications 

The three () types of application for streetlights are: 

• Application made by the local authority/government authority 

• Application by developer 

• Application by individual 

4.3 Application by Developer 

The local authority or developer should take the following steps to apply for streetlight. 

Steps 

Action 

1 Appoint a Consultant Engineer and an Electrical Contractor that is registered with the Energy 

Commission. 

2 The application is made together with the supply application for a new housing development with 

all the load details of the proposed public lighting that is approved by the local authority. 

4.4 Application By Individuals/Local Authority/Government Authority 

The application process is similar for both individuals and local authority or government authority. Individuals 

must already have an account with TNB. The installation of streetlight depends on: 

• Installation of streetlight on existing TNB pole 

• Installation involving additional poles 

IF 

Installation of streetlight on existing 

TNB pole 

Installation involving 

additional poles 

THEN 

Consumer submits application to the Kedai Tenaga. 

The applicant settles the full cost of additional new pole/poles 

installed. 

20 TENAGA 


CONTENTS 

Page 

 

1.0 PLANNING FOR CONNECTION ......................................................................................... 22 

1.1 Declaration Of Loads And Its Characteristics ............................................................................ 22 

1.1.1 Supplies at 415V and 240V .............................................................................. 22 

1.1.1.1 Technical Requirements For Connection ............................................ 23 

1.1.2 Supplies at 275kV, 132kV, 33kV, 22kV, 11kV and 6.6kV ............................... 23 

1.1.3 Supplies To Embedded / Distributed Generators ............................................. 24 

1.1.3.1 Planning Data Requirements For Connection of Embedded / 

Distributed Generators......................................................................... 24 

1.1.3.2 Pre-connection Studies For Embedded / Distributed Generators ....... 27 

1.2 Other Information Requirements .................................................................................. 28 

2.0 PLANNING AND DESIGN CRITERIA ............................................................................... 29 

2.1 Steady-State Supply Voltage Performance .................................................................... 29 

2.2 Supply Security Level ................................................................................................... 29 

2.2.1 Adopted Security Level Definitions For TNB Distribution System ................ 30 

2.2.2 Supply Security Level to Consumers ............................................................... 30 

2.2.3 Request For Higher Supply Security Level ..................................................... 30 

2.3 Power Quality ............................................................................................................... 30 

2.3.1 Power Quality Requirements ........................................................................... 30 

2.3.2 Scope ................................................................................................................ 31 

2.3.3 Voltage Dips/Sags ............................................................................................ 31 

2.3.4 Voltage Step Change ........................................................................................ 32 

2.3.5 Voltage Fluctuations and Flicker ..................................................................... 33 

2.3.6 Harmonics ........................................................................................................ 35 

2.3.7 Voltage Unbalance ........................................................................................... 38 

2.4 Short-Circuit Levels ...................................................................................................... 39 

2.5 Protection Requirements ............................................................................................... 40 

2.5.1 Basic Requirements .......................................................................................... 40 

2.5.2 Specific Requirement ........................................................................................ 40 

2.5.3 Protection System Evaluation Process ............................................................. 41 

3.0 DEMAND ESTIMATION ........................................................................................... 42 

3.1 Demand Estimates For Consumer Sub-Classes Or Premises ........................................ 42 

3.2 Group Diversity ............................................................................................................. 43 

3.3 Demand Estimates For A Mixed Development Area .................................................... 43 

3.4 Demand Projection And Substation Requirements For LV Scheme ............................. 43 

4.0 SUPPLY SCHEMES.................................................................................................................. 44 

4.1 Maximum Demand Levels And Supply Schemes ......................................................... 44 

4.2 Substation Categories, Type & Design .......................................................................... 44 

4.2.1 Sub-Station Categories ..................................................................................... 44 

4.2.2 Land Or Building Size Requirements For Sub-Station .................................... 46 

4.2.3 Type Of Fire Fighting System For The Sub-Station ......................................... 47 

4.3 Standard And Special Feature Design Schemes ............................................................ 47 

4.4 Supply Schemes For Interconnection To Embedded Generators .................................. 47 

TENAGA 


21

SECTION 1: PLANNING FOR CONNECTION 

Sets of data and information are to be furnished by Electrical Contractors and Electrical Consultant Engineers acting on 

behalf of consumers or developers at the time of application of supply and prior to connection of supply. 

Based upon submitted data and information, TNB will plan for the connection system to satisfy the planning and design 

criteria and use the best engineering practices to ensure reasonable cost of equipment, materials and workmanship as 

well as reasonable time period for connection of supplies. 

1.1 DECLARATION OF LOADS AND ITS CHARACTERISTICS 

TNB requires adequate information on magnitude and characteristics of the loads to be consumed by consumer or 

installation. 

1.1.1 Supplies at 415V and 240V 

For supplies at Low Voltages of 240V and 415V, the Consumer shall, in the appropriate application forms for 

connection obtainable from TNB provide the following data. 

(a) Maximum power requirements in kVA; 

(b) Types and number of equipment and its corresponding connected capacity in kVA; 

(c) Shunt connected reactors and capacitors in kVAr; 

(d) The date when connection is required; 

(e) For single-phase 240V motors with rating of greater than 6kVA and/or three-phase 415V motors 

with rating greater than 75kVA, the following information shall be provided for each motor; 

(i) Rating in HP or KVA; 

(ii) Types of control equipment; 

(iii) Methods of starting and starting current; 

(iv) Frequency of starting (number/hour); and 

(v) Rated power factor; 

(f) Voltage sensitive loads (indicating sensitivity) 

Where a preliminary examination of the above data indicates that more detailed information is required, the 

consumer shall provide additional information upon request by TNB. 

22 TENAGA 


1.1.1.1 Technical Requirements For Connection 

For connections at Low Voltage the consumer’s installation shall comply with the Electricity Supply Act 1990 

and any regulations made there under and Malaysian Wiring Regulations and any requirements specified by 

TNB based on Malaysian MS-IEC Standards. 

In the case of connections to Consumers at Low Voltage, TNB has the responsibility to specify any technical 

requirements for the connection. This includes specification of technical requirements associated with loads 

which may give rise to voltage fluctuations and harmonics. 

1.1.2 Supplies at 275kV, 132kV, 33kV, 22 kV, 11kV and 6.6kV 

For supplies at voltages of 275kV, 132kV, 33kV, 22kV, 11kV and 6.6kV, the Consumer shall provide comprehensive 

information on the loads and their characteristics including but not limited to the following: 

a) 

For all types of loads: 

(i) Maximum Active Power consumption in kW; and 

(ii) Maximum Reactive Power consumption in kVAR. 

b) 

For motor loads: 

(i) Types of control equipment; 

(ii) Methods of starting; 

(iii) Magnitude and duration of the starting current; 

(iv) Frequency of starting (number/hour); 

(v) Under voltage setting and time; 

(vi) Negative phase sequence protection; and 

(vii) Sub-transient and/or locked rotor reactance of the motor. 

c) 

For nonlinear loads with harmonic current injections: 

(i) Harmonic current spectrum including harmonic number and the corresponding maximum 

current. 

d) For fluctuating loads: 

(i) The rates of change of Active Power and Reactive Power consumption in kW/minute and 

kVAR/minute respectively, both increasing and decreasing; 

(ii) The shortest repetitive time interval between fluctuations for Active Power and Reactive Power 

in minutes; and 

(iii) The magnitude of the largest step changes in Active Power and Reactive Power in kW and 

kVAR respectively, both increasing and decreasing. 

TENAGA 


23

e) 

f) 

For voltage sensitive loads: 

(i) steady-state voltage tolerance limits of the equipment in percentage of the nominal voltage; 

(ii) intrinsic immunity limits to short duration voltage variation; 

(iii) transient voltage tolerance limits of the equipment in percentage of the nominal voltage and the 

corresponding duration; 

(iv) harmonic current emission limit for equipment. 

For Shunt Connected Reactors and Capacitors: 

(i) configuration and sizes of individual banks; 

(ii) types of switching and control equipment; and 

(iii) types of harmonic filtering reactors. 

Should a preliminary examination of the above data indicate that a more detailed information is required, the 

consumer shall provide the information upon request by TNB. 

TNB upon receipt of the data and information should perform assessments of the impacts of the loads on 

TNB’s distribution system. Consumers shall then be advised on TNB’s design of supply scheme and other 

technical requirements to be complied with by the consumers to ensure system performance is within the limits 

or standard. 

1.1.3 Supplies To Embedded / Distributed Generators 

1.1.3.1 Planning Data Requirements For Connection Of Embedded / Distributed Generators 

Embedded / distributed generator installations are treated as a different consumer class. For the purposes of planning 

the connection of a Distributed Generator to the Distribution System, TNB requires sufficient information to model the 

generating plant and carry out engineering studies for determining the method of connection to be employed, the voltage 

level of connection and its impacts on the Distribution System. The Distributed Generator shall provide the following 

information to TNB for planning purposes. 

(a) For all Generating Units 

(i) Terminal voltage; 

(ii) Rated kVA; 

(iii) Rated kW; 

(iv) Maximum Reactive Power sent out or minimum lagging power factor; 

(v) Maximum Reactive Power absorbed or minimum leading power factor; 

(vi) Type of Generating Unit – synchronous, asynchronous, etc. 

(vii) Type of prime mover; 

(viii) Type of voltage control; 

(ix) Generating Unit sub-transient reactance; 

(x) Generating Unit transformer details; 

(xi) 

Requirements for Top-Up Supply and/or Standby Supply. 

24 TENAGA 


Should a preliminary examination of the above data indicate that more detailed information is required; the Distributed 

Generator shall provide additional information as follows upon request by TNB. 

(b) For a Generating Unit with a capacity greater than 3 MW, the following additional information shall be 

provided to TNB by the Distributed Generator: 

(i) Generating Unit electric and mechanical data (all impedance (unsaturated) in p.u. of rating and time 

constants in seconds) 

• Type of prime mover 

• Rated MVA 

• Rated MW 

• Generating Unit rotor and turbine moment of inertia or inertia constant 

• Generating Unit MW / MVAR capability chart\ 

• Type of excitation system 

• Stator resistance 

• Direct-axis sub-transient reactance 

• Direct-axis transient reactance 

• Direct-axis synchronous reactance 

• Quadrature-axis sub-transient reactance 

• Quadrature-axis transient reactance 

• Quadrature-axis synchronous reactance 

• Direct-axis sub- transient open circuit time constant 

• Direct-axis transient open circuit time constant 

• Quadrature-axis sub-transient open circuit time constant 

• Quadrature-axis transient open circuit time constant 

• Zero sequence resistance 

• Zero sequence reactance 

• Negative sequence resistance 

• Negative sequence reactance 

• Generating Unit open circuit saturation curve 

(ii) Generating Unit transformer data 

• MVA rating 

• % resistance 

• % reactance 

• Tap range in p.u. 

• Tap step in p.u. 

• Vector group 

• Method of earthing 

TENAGA 


25

(iii) Automatic voltage regulator (AVR) data 

• A block diagram for model of the AVR including the data in gains, forward and feedback gains, 

time constant and voltage control limits and limit characteristics. 

(iv) Speed governor and prime mover data 

A block diagram for the model of the generating unit speed governor including its control parameters, 

time constants, gains, valve limits, temperature controls, deadbands, turbine rating, maximum and 

minimum power, penstock parameters, tunnel parameter, surge chamber parameters and all other 

relevant data. 

Should a preliminary examination of the above data indicate that more detailed information is required; 

the Distributed Generator shall provide additional information upon request by TNB. 

(c) 

For Fixed Speed Asynchronous Induction Generating Units the following data may be required: 

• Stator Current at unity power factor 

• Stator Current max at lagging power factor 

• Stator Current min at lagging power factor 

• Magnetizing reactance 

• Stator resistance 

• Stator reactance 

• Inner cage or running rotor resistance 

• Inner cage or running rotor reactance 

• Outer cage or standstill rotor resistance 

• Outer cage or standstill rotor reactance 

• For the above state whether derived from inner outer cage or running-standstill measurements 

• Slip at rated output per unit 

• Load torque-speed coefficient B 

• Load torque-speed coefficient C 

• Inertia constant for generator prime mover drive chain 

Note: 

The torque-speed (T-N) relationship is defined as: 

T = T 0 

(A + BN = CN 2 ) where A = 1.0 – B – C 

Therefore only B & C are needed. 

Alternatively a per unit torque-speed curve can be provided. 

• Describe method of adding star capacitance over the operating range 

26 TENAGA 


• Capacitance connected in parallel at % of rated output Starting 

20% 

40% 

60% 

80% 

100% 

• Maximum starting current in Amps 

• Starting Regime - Symmetrical RMS current at time t from energisation: 

- t = 0 ms 

- t = 50 ms 

- t = 200 ms 

- t = 1 s 

- t = 5 s 

• The operating chart to show range of reactive import and export with compensation as a function 

of Active Power. 

• Details of the turbine and governor model, described in block diagram form showing transfer 

functions of individual elements 

The Distributed Generator will need to provide the above characteristic for each asynchronous 

Generating Unit based on the number of pole sets (i.e. Two data sets are required for dual speed 4/6 

pole machines). 

For large sites, with multiple machines, the Distributed Generator may alternatively provide an equivalent network 

modelled as an asynchronous Generating Unit with matching Generating Unit Transformer at the Connection Point. This 

equivalent should also model the site electrical network and power factor correction, etc. 

Should a preliminary examination of the above data indicate that more detailed information is required; the Distributed 

Generator shall provide additional information upon request by TNB. 

1.1.3.2 Pre-Connection Studies For Embedded / Distributed Generators 

The following pre-connection studies are necessary for the purpose of designing the interconnection facilities for 

embedded / distributed generators:- 

(i) System studies of embedded / distributed generator installation encompassing load flow, short-circuit, 

stability, load rejection or islanding studies and protection coordination studies. The part of preconnection 

studies is to be carried by a consultant appointed the owner of embedded / distributed 

generator. The associated costs shall be borne by the owner of embedded generator. The results of study 

will be presented to TNB for evaluation. 

TENAGA 


27

(ii) 

TNB upon receiving the above study and other necessary data shall conduct an integrated study of the 

interconnected systems. The scope of study will include load flow, short-circuit, stability and protection 

coordination studies. The costs of this study will also be borne by the owner of generator seeking 

interconnection with the distribution system. 

1.2 OTHER INFORMATION REQUIREMENTS 

Other sets of information as listed below are necessary for TNBD to plan for connection of supply to consumers. 

1. Site plan or location plan (see Appendix ) indicating the geographical position of the premises/buildings 

of consumers. This information is essential for TNB to locate TNB’s infrastructure nearest to the prospective 

consumers. 

2. Layout plan (see Appendix ) for developed/proposed development. This information is necessary for TNB to 

locate sub-station locations, if not previously identified, and feeder routes for MV or LV networks. Sketched layout 

plans are required for individual or group applications less than 100KVA. Additional information, which needs to 

be specified in the supply application form, is the position of prospective consumer with respect to LV system or 

sub-station in terms of distance and estimated number of spans of LV feeders. 

3. Building layout plans are particularly useful for indicating services entrance location/positions, position of substations 

and consumer switch rooms. 

4. Sub-station layout plan for both sub-stations integrated into a building or in separate building. 

5. Consumer switch room layout indicating location of main switchboard, service cable entry position and necessary 

ducting or trenching. 

6. Wiring diagrams of installation to be approved and endorsed by Electrical Consultant Engineer for demand greater 

than 100kVA. The single line drawing of the installation must encompass the complete installations indicating 

incoming switches, main and sub-switchboards, main protection for incoming TNB supply as well as sub-circuit 

protection, metering schemes, conductor sizes, major equipment e.g motors etc., standby generators, capacitor 

banks. Ratings of switchgears and components must also be indicated. 

7. Appendix 14 is the form which registers the consent or acknowledgement of developer/owner for leasing/transfer 

of sub-station lot to TNB. This form is to be submitted by Electrical Consulting Engineers, acting on behalf of 

consumers, for projects requiring substations. 

Appendix 6 is a checklist for reference to consumers, electrical contractors and consultant engineers on range data 

or information required at the supply application processing stage. 

28 TENAGA 


SECTION 2.0 PLANNING AND DESIGN CRITERIA 

TNB in developing the connection system or supply infrastructure needs to satisfy a set of planning and design criteria 

which are described in this section. 

2.1 STEADY-STATE SUPPLY VOLTAGE PERFORMANCE 

(a) 

Steady-State Voltage Fluctuation under Normal Condition 

Under normal condition, when all circuit elements are in service, the distribution network including 

the points before the consumer metering must be planned to be maintained as is table 2-1 below:- 

Table 2-1: Steady -state voltage level fluctuation limits under normal conditions 

Voltage level 

% variation 

415V and 240V -10% & +5% 

6.6kV, 11kV, 22kV,33kV +/- 5% 

132kV and 275kV -5% & +10% 

(b) 

Steady-State Voltage Fluctuation under Contingency Condition 

Under contingency condition, when one or more circuit elements are on outage, the power frequency 

steady-state voltage at all points in the distributor’s distribution system including the points before the 

consumer metering must be planned to be maintained as follows: 

Table 2-2: Steady-State Voltage Fluctuation Limits under Contingency Condition 

Voltage level 

% variation 

415V and 240V +/- 10% 

6.6kV, 11kV, 22kV,33kV +10 & -10% 

132kV & 275kV +/- 10% 

2.2 SUPPLY SECURITY LEVEL 

Supply security of a distribution system network defines the availability of supply to consumers following the occurrence 

of supply interruption. Systems and necessary network management infrastructure may be designed to meet any of the 

standardized security level definitions currently adopted by TNB as indicated in table 2-3. 

TENAGA 


29

2.2.1 Adopted Security Level Definitions For TNB Distribution Systems 

Table 2-3: Security Levels for Distribution Network 

Security Level 

Level 1 

Level 2 

Level 3 

Level 4 

Average Restoration Period 

Less than 5 seconds 

Less than 15 minutes 

Less than 4 hours 

Less than 24 hours 

2.2.2 Supply Security Level to Consumers 

For supplies to consumers at voltage levels of 6.6kV, 11kV, 22kV and 33kV, large part of the network are generally 

designed to facilitate an average supply restoration of less than 4 hours. For supplies at 240V and 415V, the restoration 

period may vary beyond 4 hours depending on the type of network fault. 

2.2.3 Request for Higher Supply Security Level 

However, TNB can design the supply scheme to meet higher security level requirement of individual consumer or group 

of consumers. All additional costs involved in providing the higher security level shall be borne by the consumer. 

2.3 POWER QUALITY 

2.3.1 Power Quality Requirements 

2.3.1.1 The electromagnetic disturbance covers the following phenomena: 

a. Voltage fluctuations and flickers 

b. Harmonics up to order of 50 th 

c. Voltage dips and short supply interruptions 

d. Voltage unbalance 

e. Inter-harmonics up to 50 th 

f. Voltage distortions at higher frequencies (above 50 th harmonics) 

g. Transient overvoltages 

h. Power frequency variation 

i. Dc components 

j. Mains signaling 

30 TENAGA 


For the purpose of this guideline, Power Quality is defined as the degree to which the voltage at the point 

of connection to the consumer of the Distribution Network is maintained to be Sinusoidal at Rated Voltage 

Magnitude and Frequency. In this guideline only items a to d are considered. 

2.3.1.2 This section specifies the Power Quality requirements of the electricity supply to be delivered to the consumers 

in the TNB distribution system in terms of voltage and frequency to be within specific limits so that the consumer 

s’ equipment directly connected to the TNB distribution system can operate safely within its design performance 

without suffering undue damage or breakdown. Likewise this guidelines shall be complied with by all consumers 

connected and who intend to be connected to the TNB distribution system. 

2.3.1.3 In order to achieve the required Power Quality, these guidelines will be used by TNB in planning, developing, 

maintaining and operating the distribution system and in connecting Distributed Generation and Demand to the 

distribution system. 

2.3.1.4 In cases where, the nature and operation of the new types of plant and equipment to be connected to the 

distribution system is perceived to be likely to cause problems to customers connected to the System, but not 

fully covered by this guidelines, expert advice will be sought to ensure the appropriate remedial measures are 

put in place. 

2.3.2 Scope 

2.3.2.1 This guidelines covers most of the power quality related phenomena generated by various types of plant and 

equipment connected to the distribution system as well as those generated by the transmission system. In each 

particular case the Distribution Power Quality that should be maintained is indicated together with the remedial 

approach and responsibilities of parties. 

2.3.3 Voltage Dips/Sags 

2.3.3.1 This guidelines does not specifically cover the requirements for transient phenomena which can affect the 

voltage level known as voltage “dip” or “sag” and “swell” usually experienced during system faults and the 

subsequent recovery period, which can adversely affect some customer equipment sensitive to such changes. 

Currently, there is no local or international guidelines that has been established to specify requirements of the 

supply voltage to the consumers with respect to the magnitude and duration of voltage dips and swells. 

TENAGA 


31

2.3.3.2 Guidelines and guides that exist with respect to voltage dips and swell are those that describe the environment in 

which the sensitive voltage equipment may experience which include typical number of voltage sag experiences 

and their duration. The main purpose of such guidelines is to ensure that equipment designed to be connected to 

the distribution systems to be compatible with the supply voltage performance in terms of various power quality 

problems including voltage sags. 

2.3.3. Malaysian Standard MS 1760:2004 760:00 “Guides on Voltage Dips and Short Interruptions on Public Electric Power 

Supply Systems” contains definitions and descriptions of voltage sags and short interruptions. MS1760:2004 is 

based on IEC 61000-2-8 with some limited data on the characteristics for Malaysia. The purpose of the Guides 

is to discuss voltage dips and short interruptions primarily as phenomena observed on public supply systems and 

its effects on voltage sensitive equipment receiving supply from such systems. 

2.3.3.4 There exist standards on immunity of equipment to supply voltage fluctuations and distortion with defined 

magnitude and duration of voltage dips and harmonics. IEC 61000-2 series of guidelines set out the supply 

characteristics e.g. IEC 61000-2.8 as indicated above. IEC 61000-3 series of guidelines sets out the compatibility 

levels which should be achieved when designing electrical equipment which may give rise to voltage fluctuations 

and harmonic distortion and when connecting such equipment to the distribution system, which will give 

immunity to interference to similar equipment connected to the distribution system. MS IEC 61000-4-11 & MS 

IEC 61000-4-34 series of standards specifies test methods. 

2.3.3.5 Some equipment suppliers and trade organisations also specify the immunity levels for certain types of equipment 

for example Semiconductor Industry Guidelines SEMI F47, Computer and Business Equipment Manufacturing 

Association CBEMA Compatibility Guidelines. 

2.3.3.6 TNB shall upon request from any customer advise the consumer having connected voltage sensitive loads 

or intending to connect voltage sensitive loads in their installation to take into account the short duration 

electromagnetic disturbance phenomena for selecting equipment with proper maximum intrinsic immunity. 

2.3.4 Voltage Step Change 

2.3.4.1 Limits of voltage changes due to Load, frequent and infrequent operational switching of Load both by TNB and 

the consumer are defined table 2.3.4.1. These limits are based on UK’s Engineering Recommendation P2 P2 on 

“Planning Limits for Voltage Fluctuations Caused by Industrial, Commercial and Domestic Equipment in the 

United Kingdom”, 1989. 

32 TENAGA 


Table 2.3.4.1: Voltage limits on switching of load 

Load Starting/Switching 

Limit of Voltage 

Change 

Starting/switching once or twice a year 6% 

Infrequent single starting/switching or 

disconnection of Load – once in two hours 

or more hours. Including capacitor or 

reactor bank 

Frequent starting/switching and/or 

disconnection of Load (e.g., Many times 

in a day) 

3% 

1% 

2.3.5 Voltage Fluctuations and Flicker 

2.3.5.1 The limits of Flicker that are acceptable on the distribution system are in accordance with the “Engineering 

Recommendation P28, Issued by The Electricity Council of UK in 1989 entitled Planning Limits for Voltage 

Fluctuation Caused by Industrial, Commercial and Domestic Equipment in the United Kingdom”. TNB uses the 

procedures contained in this document to plan the connection of Fluctuating Loads and applies the limits therein 

in measuring and monitoring the levels of Flicker at such points of connection. 

2.3.5.2.2 In accordance with the “Engineering Engineering Recommendation P2”, P2”, voltage fluctuations at a Point of Common 

Coupling with a fluctuating Load directly connected to the Distribution System shall not exceed: 

(a) % of the voltage level for step changes, which may occur repetitively. Any large voltage excursions other 

than step changes or less frequent step changes may be allowed up to a level of 3% provided that this 

does not constitute a risk to the distribution system or, in TNB’s view, any other party connected to the 


(b) The planning limits for the Short and Long Term Flicker Severity applicable for Fluctuating Loads connected 

to the distribution system are as set out in the table below. 

TENAGA 


33

Table 2.3.5.2 : Maximum allowable flicker severity 

TNB distribution system 

Voltage Level at which the 

Fluctuating Load is 

Connected 

Absolute Short 

Term Flicker 

Severity (P st 

) 

Absolute Long 

Term Flicker 

Severity (P lt 

) 

500, 275 and 132kV 1.0 0.8 

Less than 132kV 0.8 0.6 

2.3.5.3 In connecting a Fluctuating Load at a particular point or Point of Common Coupling it is necessary to assess the 

total Flicker due to the Fluctuating Load itself and the background Flicker measured at that point. In assessing 

the total Flicker TNB shall use the so called “RSS Rule”. This assessment is carried out by the RSS Rule by 

obtaining the sum of the squares of the Flicker from the Fluctuating Load and the background Flicker, with the 

square root of this sum yielding the total assessed Flicker at that Point of Common Coupling due to the specific 

Fluctuating Load and the background Flicker at that point. 

2.3.5.4 Connection of more than one Fluctuating Load at the same Point of Common Coupling or addition of further 

Fluctuating Load at the same location is carried out on a “first come first served” basis on the distribution system. 

This means that whilst the first Fluctuating Load may be within the allowable Flicker limits and not require 

any Flicker mitigation or compensation equipment, the second Fluctuating Load which may cause violation 

of Flicker limits will be obliged to invest in appropriate Flicker mitigation or compensation equipment. At 

the planning stage, in carrying out the assessment of the total Flicker due to more than one Fluctuating Load 

connecting at a particular Points of Common Coupling, TNB shall use the methodology described in P28. 

2.3.5.5 In assessing the level of Flicker due to a Fluctuating Load at the planning stage the assessment will be carried 

out at a realistic System operating condition giving the minimum number of connections with which that point 

on the System can be operated within normal voltage limits and following Secured Contingency Events. This 

condition shall be considered as representative of the type of System conditions under which the Flicker due to 

a Fluctuating Load will be at its highest value as the voltage fluctuations due to the Fluctuating Load will be at 

their highest level under such conditions. 

34 TENAGA 


2.3.5.6 If under the operating conditions described in 2.3.5.5 the Flicker due to a Fluctuating Load exceeds the limits 

then Flicker compensation, which will reduce the Flicker to an acceptable level shall be installed. For the 

avoidance of doubt the acceptance Criteria for Flicker is the 95% values of Short and Long Term Flicker 

Severity i.e., P st 

and P lt 

will be below the limits specified in table 2.3.5.2. Here the 95% values mean the values 

of Flicker Severity measured and observed during 95% of the total observation period. The System overall 

performance yardstick for the level of Flicker reduction to be achieved shall be based upon enabling connection 

of other similar Fluctuating Load and/or permitting for future extension and development of the location with 

further Fluctuating Load installations. The Flicker compensation method and equipment to be used shall be 

of a type that does not cause resonance problems with the existing and intended future developments of the 


2.3.5.7 If the permissible Flicker limits cannot be met even with installation of Flicker compensation at a particular 

Points of Common Coupling at a particular System voltage level then connection of the Fluctuating Load at a 

higher voltage level or elsewhere in the System shall be considered. The connection point of choice will need 

to have to experience lower voltage fluctuations than the first connection point considered under the operational 

conditions in 2.3.5.5. 

2.3.6 Harmonics 

2.3.6.1 All plant and equipment connected to the Distribution System, and that part of the TNB distribution system at 

each connection site, should be capable of withstanding the following distortions of the voltage waveform in 

respect of harmonic content. The maximum total levels of Harmonic Distortion at any connection point on the 

distribution system from all sources under both planned outage and Secured Contingency Event conditions, 

unless abnormal conditions prevail, shall not exceed: 

(a) at 33kV and 22kV, a Total Harmonic Distortion of 3% with no individual harmonic voltage greater than that 

shown in the tables X; 

(b) at 11kV and 6.6kV, a Total Harmonic Distortion of 4% with no individual harmonic voltage greater than that 

shown in the tables Y; 

(c) at 415V and below, a Total Harmonic Distortion of 5% with no individual harmonic voltage greater than that 

shown in the tables Z; 

(d) infrequent short duration peaks may be permitted by TNB to exceed the above levels for harmonic 

distortion; 

TENAGA 


35

2.3.6. .2 A Consumer who intends to connect non-linear loads to the TNB system shall carry out assessment harmonic 

distortion levels for the connection of each non-linear Load to the Distribution System. TNB will verify the 

results of the assessments. 

2.3.6. Consumers shall ensure that the Immunity Level of their plant and Apparatus is compatible with the 

electromagnetic disturbances present on the System including harmonics. 

2.3.6. .4 In assessing the level of harmonic distortion and individual harmonic levels at the planning stage, the assessment 

will be carried out at a realistic system operating condition giving the minimum number of connections with 

which that point on the system can be operated within normal voltage limits and following secured contingency 

events. This condition shall be considered as representative of the type of system conditions under which the 

harmonic distortion and individual harmonic levels will be at their highest level. 

2.3.6.5.5 If under the operating conditions describes in ..6. 2.3.6.1 (a) (a) the harmonic distortion and individual harmonic levels 

due to the load exceed the limits then harmonic filters which will reduce the harmonics to an acceptable level 

shall be installed to bring the levels within limits. The system overall performance yardstick for the level of 

harmonic reduction to be achieved shall be based upon enabling connection of other similar harmonic producing 

load and/or permitting for future extension and development of the location with further harmonic producing 

load installations. 

2.3.6.6.6 The planning limits of harmonics that are acceptable of the distribution system are in accordance with MS 

IEC 61000-3-6 “ Assessment of emission limits for distorting loads in MV & HV power systems”, and where 

appropriate Engineering Recommendations G5/4 is adopted. 

2.3.6.7.7 TNB uses the procedures contained in this document to plan the connection of loads producing harmonics and 

applies the limits therein in measuring and monitoring the levels of harmonics at such points of connection. 

These are given in summary in the tables below. 

36 TENAGA 


Table X: Planning Levels for Harmonic Voltages in TNB distribution systems >20kV to 145kV (22kV and 

33kV) including background harmonics 

Odd Harmonics 

(Non-multiple of 3) 

Order 

“h” 

5 

7 

11 

13 

17 

19 

23 

25 

>25 

Harmonic 

Voltage (%) 

5.0 (2.0) 

4.0 (2.0) 

3.0 (1.5) 

2.5 (1.5) 

1.6 (1.0) 

1.2 (1.0) 

1.2 (0.7) 

1.2 (0.7) 

0.2+0.5(25/h) 

Order 

“h” 

Odd Harmonics 

(Multiple of 3) 

Harmonic 

Voltage (%) 

Order 

“h” 

Values in brackets are the Engineering Recommendation G5/4 levels. 

3 

9 

15 

21 

>21 

4.0 (2.0) 

1.2 (1.0) 

0.3 

0.2 

0.2 

2 

4 

6 

8 

10 

12 

>12 

The total harmonic distortion level is 6.5 % (3%) 

Even Harmonics 

Harmonic 

Voltage (%) 

1.6 (1.0) 

1.0 (0.8) 

0.5 

0.4 

0.4 

0.2 

0.2 

Table Y: Planning Levels for Harmonic Voltages in TNB distribution systems 6.6kV and 11kV including 

background harmonics 

Odd Harmonics 


Odd Harmonics 



Order 

Harmonic 

Order 

Harmonic 

Order 

Harmonic 

“h” 

Voltage (%) 

“h” 

Voltage (%) 

“h” 

Voltage (%) 

5 

7 

11 

13 

17 

19 

23 

25 

>25 

5.0 (3.0) 

4.0 (3.0) 

3.0 (2.0) 

2.5 (2.0) 

1.6 

1.2 

1.2 

1.2 (0.7) 

0.2+0.5(25/h) 

3 

9 

15 

21 

>21 

4.0 (3.0) 

1.2 

0.3 

0.2 

0.2 

2 

4 

6 

8 

10 

12 

>12 

The total voltage harmonic distortion level is 6.5 % (4%) 

1.6 (1.5) 

1.0 

0.5 

0.4 

0.4 

0.2 

0.2 

Values in brackets are the Engineering Recommendation G5/4 levels. 

TENAGA 


37

Table Z: Planning Levels for Harmonic Voltages in TNB distribution systems 415V and below including 

background harmonics 

Odd Harmonics 

Odd Harmonics 




Order Harmonic Order Harmonic Order Harmonic 

“h” Voltage (%) “h” Voltage (%) “h” Voltage (%) 

5 

4.0 

7 

4.0 

2 1.6 

11 

3.0 

3 

4.0 4 1.0 

13 

2.5 

9 

1.2 6 0.5 

17 

1.6 

15 

0.3 8 0.4 

19 

1.2 

21 

0.2 10 0.4 

23 

1.2 >21 0.2 12 0.2 

25 

0.7 

>12 0.2 

>25 0.2+0.5(25/h) 

The total voltage harmonic distortion level is 5% 

Note: The above table shows the Engineering Recommendation G5/4 levels. TNB is in the process of adopting 

IEC levels and the values in the above table will be updated later 

2.3.7 Voltage Unbalance 

2.3.7.1 All plant and equipment connected to the distribution system, and that part of the distribution system at each 

connection site, should be capable of withstanding the following distortions of the voltage waveform in respect 

of Voltage Unbalance at the planning stage. 

) Under planned outage conditions, the maximum negative phase sequence component of the phase voltage 

on the distribution system should remain below 1% unless abnormal conditions prevail. 

) Under the planned outage conditions, infrequent short duration peaks with a maximum value of 2% are 

permitted for Voltage Unbalance, subject to the prior agreement of TNB under the connection agreement. 

TNB will only agree following a specific assessment of the impact of these levels on TNB and other 

Customers’ plant and equipment with which it is satisfied. 

38 TENAGA 


3) At the terminals of a Customer’s installation or specific Load the Voltage Unbalance voltage shall not 

exceed 1% for 5 occasions within any 30 minute time period. 

) In terms of traction Loads connected to the distribution system the acceptable limits of Voltage Unbalance 

are in accordance with “Engineering Recommendation (E/R) P29, issued by the Electricity Council of UK 

in 1984 entitled “AC Traction Supplies to British Rail” and its successor document P 29 issued in 1990 

“Planning Limits for Voltage Unbalance in the United Kingdom”. TNB uses the procedures contained in 

this document to plan the connection of Loads producing Voltage Unbalance and applies the limits therein 

in measuring and monitoring the levels of unbalance at such points of connection. 

2.3.7.2 In assessing level of Voltage Unbalance at the planning stage the assessment will be carried out at a realistic 

System operating condition giving the minimum number of connections with which that point on the System 

can be operated within normal voltage limits with maintenance outages and following Secured Contingency 

Events. This condition shall be considered as representative of the type of System conditions under which the 

Voltage Unbalance will be at its highest value. 

2.3.7.3 If under the operating conditions described earlier the Voltage Unbalance due to the Load exceeds the limits then 

balancing compensation equipment, which will reduce the unbalance to an acceptable level shall be installed 

to bring the levels within the limits. The System overall performance yardstick for the level of unbalance 

reduction to be achieved shall be based upon enabling connection of other similar unbalance producing Load 

and/or permitting for future extension and development of the location with further unbalance producing Load 

installations. The balancing compensation equipment to be installed shall be of a type that does not cause 

resonance problems with the existing and intended future developments of the distribution system. 

2.4 SHORT-CIRCUIT LEVELS 

TNB network are design and operated in order to remain within the limits of short-circuit levels as in Table 2-4. TNB 

equipment design are specified to the same S.C rating. Consumer equipment at the point of interface or part of the 

interconnection design shall also the minimum S.C rating. TNB may provide indicative or prospective fault level in 

terms of X/R ratio at the interface point with consumer, if so required for detailed installation design. Values in table 2-4 

gives the maximum short-circuit level at the various voltage levels. 

TENAGA 


39

Table 2-4: Short-circuit levels for various voltage levels 

Supply Voltage Level S.C Rating 

275kV 40 kA for 3s 

132kV 31.5 kA for 3s 

33kV 25 kA for 3s 

22kV & 11kV 20 kA for 3s 

6.6 kV 20 kA for 3s 

415V & 240V 31.5 kA for 3s 

2.5 PROTECTION REQUIREMENTS 

2.5.1 Basic Requirements 

In all cases, the basic requirement is that the consumer’s arrangements for protection at the connection point, including 

types of equipment and protection settings, must be compatible with standard practices on the TNB’s system, and be as 

TNB specifies during the application for supply process. This is especially critical for MV and HV consumers. 

2.5.2 Specific Requirements 

Consumers shall take into consideration the following specific protection practices of TNB in designing their 

installation: 

(a) 

(b) 

(c) 

Maximum clearance times (from fault current inception to fault clearing) must be within the limits established 

TNB in their short circuit rating policy for the distribution system. 

Auto-reclosing or sequential switching features may be used on TNB’s distribution system. TNB will provide 

details on the operating sequence utilised for the supplies on the proposed installation so the consumer can plan 

for this in the design and protection of his facility. 

On some of TNB’s distribution systems, certain types of faults may cause disconnection of one phase only of a 

three-phase supply. 

40 TENAGA 


2.5.3 Protection System Evaluation Process 

Consumer’s installation to supplied at 11kV and above shall provide the appropriate and matching protection scheme 

to support the desired operation of the designed supply scheme. The reliability of the equipment, protective devices and 

protection systems being deployed at the consumer connection or interface points may effect the reliability of TNB’s 

supply system. 

Submission of schematic of 

installation indicating proposed 

protection schemes for incoming 

points 

Review of installations protection 

scheme and design of supply scheme 

to consumer 

Consumer advised on required changes 

to match planned supply schemes 

Submission of device 

specifications & test results 

Submission of Protection 

Coordination Studies of internal 

installation & proposed setting 

TNB performed integrated 

protection coordination studies & 

confirm setting 

Witness testing and verification at 

site before commissioning 

Fig 2-1 Protection System Evaluation Process 

Figure 2-1 above illustrates the steps involved in the evaluation of protection schemes. 

TENAGA 


41

SECTION 3.0: DEMAND ESTIMATION 

Supply schemes and networks are to be adequately designed or dimensioned to meet initial and growth of consumer 

individual and group maximum demand. 

The demand estimates are based upon load declared by consumer and TNB’s own information on load profile 

characteristics for various consumer classes. Range of values are given as demand profile are known to varies according 

to geographical location of consumers around the TNB service areas in Peninsular Malaysia. 

Fairly accurate assessment of individual and group demand of consumers are critical for correct dimensioning of network 

or facilities in meeting the initial and future demand of consumers as imposed on the network. 

3.1 Demand Estimates For Consumer Sub-Classes Or Premises 

Table 3-1 and 3-2 indicates the typical ranges of maximum demand for domestic and shop-lots or shop-houses respectively. 

These values shall be subjected to revisions based upon of latest results load profiling studies. 

Table 3-1: Range of maximum demand (M.D) for domestic consumer sub-classes or premises 

No: 

1 

2 

3 

4 

5 

Type Of Premises 

Low cost flats, single storey 

terrace 

Double storey terrace or 

apartment 

Single storey, semidetached 

Single storey bungalow & 

three-room condominium 

Double storey bungalow & 

luxury condominium 

Minimum 

(kW) 

Average 

(kW) 

Maximum 

(kW) 

1.5 2.0 3.0 

3.0 4.0 5.0 

3.0 5.0 7.0 

5 7.0 10 

8.0 12 15 

Table 3-2: Range of maximum demand (M.D) for types of shop-houses 

No: 

Type Of Premises 

Minimum 

(kW) 

Average 

(kW) 

Maximum 

(kW) 

1 Single storey shop house 5 10 15 

3 Double storey shop house 15 20 25 

3 Three storey shop house 20 30 35 

4 Four storey shop house 25 35 45 

5 Five storey shop house 30 40 55 

42 TENAGA 


3.2 Group Diversity 

Group diversity is applied in the computation of unit demand and group demand. The typical values for diversity factors 

for various consumer classes is as in the table below. 

Table 3-3: Typical Group Diversity Values 

Consumer classes 

Domestic 

Less than 10 consumers 

More than 10 consumers 

Commercial or industrial 

Less than 10 consumers 

More than 10 consumers 

Group Diversity factors 

0.80 

0.75 

0.80 

0.75 

3.3 Demand Estimates For A Mixed Development Area. 

Accurate determination of the maximum possible demand for a newly proposed development is critical in the effective 

long-term planning of supply network within the specific area. Adequate land areas for transmission main intakes (PMU 

132/33kV, 132/22kV, 132/11kV), major distribution stations (PPU 33/11kV, 22/11kV), sub-stations (PE 11/. 415kV, 

22/. 415kV), underground cable and overhead line routes will have to be allocated at the layout approval stage by the 

relevant authorities. 

The total demand will indicate the supply voltage and target network configuration for the whole development area. 

Network facilities will be developed in phases in tandem with physical development. 

Site selections for PMU, PPU, sub-stations and feeder routes are normally made to achieve optimal technical performance 

of network and costs based on the planned target network. 

Appendix 15 indicates the sample M.D worksheet for a mix development area to be filled up and submitted to TNB at 

the supply application stage. 

3.4 Demand Projection And Substation Requirements For LV Scheme 

Demand projection of a new development area, say a proposed housing scheme, determines the number of sub-station 

requirements (11/. 415kV) in the design of low voltage system. 

Appendix 16 indicates the method for determining the overall numbers and capacity of sub-station for a typical housing 

or commercial scheme based upon the projected demand growth. 

TENAGA 


43

SECTION 4: SUPPLY SCHEMES 

Based upon consumer declared demand level and required security level, supply schemes to consumers are appropriately 

designed to meet these requirements and planning criteria as discussed in section 2. 

4.1 Maximum Demand Levels And Supply Schemes 

The table below indicates the typical schemes for various demand levels of individual consumers. In the case of 

maximum demand (M.D) ranges of 5MVA to 10MVA, the supply voltage options of either 11kV or 33kV will ultimately 

be determined by the predominant supply voltage where the prospective consumer is to be connected. 

Consumers with M.D approaching 1000kVA have the option of taking supply at 11kV. 

Table 4-1: Typical supply schemes for various M.D levels 

M.D ranges of individual 

consumer 

Supply 

voltage 

Typical supply scheme 

Up to 12 KVA 240V Overhead services from LV mains. 

12kVA to 100kVA 





Above 25000kVA 

415V 

415V 

11kV 

22kV 

33kV 

132kV , 

275 kV 

Three phase overhead or underground 

cable service from existing LV mains. 

Direct cable service from LV board from 

a sub-station 

Directly fed through TNB 11kV switching 

station 


station 


station 

Directly fed through TNB 132kV and 

275kV switching station respectively 

4.2 Substation Categories, Type & Design 

4.2.1 Sub-station categories 

a. Transmission Main Intake (Pencawang Masuk Utama-PMU) 

Transmission Main Intake is the interconnection point of 132kV or 275kV to the distribution network. The standard 

transmission capacity and voltage transformation provided at the PMU are as follows:- 

44 TENAGA 


- 132/33kV, 2 x 90 MVA 

- 132/22kV, 2 x 60 MVA 

- 132/11kV, 2 x 30 MVA 

b. Main Distribution Sub-station (Pencawang Pembahagian Utama- PPU) 

Main Distribution Sub-station is normally applicable to 33kV for interconnecting 33kV networks with 11kV networks. 

It provides capacity injection into 11kV network through a standardized transformation of 33/11kV. 

c. Main Switching Station (Stesyen Suis Utama- SSU) 

SSU at 33kV, 22kV and 11kV are established to serve the following function:- 

1. To supply a dedicated bulk consumer ( 33kV, 22kV, 11kV) 

2. To provide bulk capacity injection or transfer from a PMU/PPU to a load center for further localized distribution. 

d. Distribution Substation (Pencawang Elektrik – P/E) 

Distribution sub-stations are capacity injection points from 11kV, 22kV and sometimes 33kV systems to the low voltage 

network (415V, 240V). Typical capacity ratings are 1000kVA, 750kVA, 500kVA and 300kVA. 

Conventional substation designs are of indoor type (equipment housed in a permanent building) and out-door type 

(ground-mounted or pole-mounted). Standardized M & E design of 11/. 433kV sub-station is available at TNB offices. 

Compact substation (11/. 415kV) has limited application and is to be strictly applied in selective situations under the 

following circumstances:- 

• System reinforcement projects for highly built-up areas where substation land is difficult to acquire. 

• Any request to use compact substation for dedicated supply to a single or limited group of low voltage consumers is 

subject to TNB approval in accordance to site constraints situation, and to be considered as ‘special feature design 

schemes’. 

The main reasons for the above application criteria are as follows:- 

• Compact design reduces future system flexibility in terms of network expansion. 

• Compact design features, which limits the capacity of outgoing circuits. 

TENAGA 


45

4.2.2 Land Or Building Size Requirements For Sub-Stations 

Table 4-2 : Land and building size requirements for sub-stations 

Note: Set-back 

Substation 

Category 

Transmission Main Intake/ 

Pencawang Masuk Utama 

(PMU): 

(a) 132/33/11kV 

Transmission Main Intake/ 

Pencawang Masuk Utama 

(PMU): 

(a) 132/33/11kV 

Main Distribution Substation 

(PPU) 

(a) /11kV 

(b) /11kV 

Main Distribution Substation 

(PPU) 

(a) /11kV 

(b) 22/11kV 

Main Switching Substation 

(SSU) 

(a) kV 

(b) kV 

(c) kV 

Distribution Substation (P/E) 

(a) /.415kV 

(b) /.415kV 

(a) JKR : On all Federal and State Routes: 20.1m (66ft) from center of road + 15.0m (50ft) for service road to 

substation site. 

Type 

Gas Insulated Switchgear 

(GIS) Without outdoor 

switchyard 

Air Insulated Switchgear 

(AIS) With outdoor 

switchyard 

(b) Local Authority/City Council/Jabatan Perancang Bandar : 6.1m (20ft) for building line + other requirements as 

requisitioned by Local Authority/City council/Jabatan Perancang Bandar. 

(c) LLM (Malaysian Highway Authority): As requisitioned by LLM. 

Land Size (Average 

Dimensions – NOT 

inclusive of Land Set-back 

Requirements) 

60.0m x 80.0m 

130.m x 130.0m 

Indoor type 46.0m x 46.0m 

Outdoor switchyard 130.0m x 130.0m 

Building Size (Average 

Dimensions) 

Customized design to 

match land size building 

bylaws 



bylaws 



bylaws 



bylaws 

Conventional 31.0m x 31.0m 24.0m x 9.1m 

Conventional 

(a) Single chamber 

(Appendix 17) 

(b) Double chamber 

(Appendix 18) 

14.63m x 14.63m 7.67m x 5.72m 

17.68m x 14.63m 10.67m x 5.72m 

(c) Compact substation 5.0m x 5.0m 2.5m x 2.0m 

46 TENAGA 


The establishment of transmission main intake also requires the allocation and acquisition of right of way or wayleaves 

for the transmission lines. Depending on the specific design of each PMU, the overall right of way or wayleaves 

requirements may be different. 

Developers of large-scale development areas, depending on the estimated demand may be required to allocate land for 

any or a combination of sub-stations categories, wayleaves or right of way for 132kV/275kV lines. These requirements 

will be specified by TNB upon submission of tentative layout plans and load estimates for the whole development 

area. 

4.2.3 Type of fire fighting System for the Substation 

Type of fire fighting system that is suitable for the substation has to meet the following criteria: 

• The fire extinguishing agent has to be the type that is approved by TNB. 

4.3 Standard And Special Feature Design Schemes 

Standard features of supply schemes are categorized as those typical design schemes for individual or consumer groups 

or classes. Typical cases are as follows:- 

(i) 

(ii) 

Supply scheme supplying domestic premises is predominantly through overhead systems and conventional substation. 

A fully underground network and any application of compact sub-station shall be considered as special 

features for which all extra costs incurred by TNB are to be paid in full by the consumer. 

Bulk consumers supplied at 11kV and above, are normally supplied via two in-feeds operating in parallel or nonparallel 

operation depending on the demand and security level required. If for any reason another dedicated cable 

is required purely for reasons of additional security, the extra costs shall have to be borne by the consumer. 

4.4 Supply Schemes For Interconnection To Embedded Generators 

Embedded generators depending on the capacity will be interconnected at 11kV and 33kV. The design of interconnection 

scheme or facilities, which may include protection, operational control facilities will be so determined to ensure safe, 

reliable and efficient interconnection scheme. The other design objective is to ensure that the interconnection of embedded 

generators should not negatively impact system performance and reliability to existing consumers connected to the TNB 

system. 

TENAGA 


47

All associated costs of network upgrading, which includes protection schemes, SCADA and communication facilities 

shall be borne by the owner of embedded generator seeking interconnection to the distribution network. 

48 TENAGA 

NASIONAL 

B E R H A D

CONTENTS 

Page 

ABBREVIATIONS .................................................................................................................50 

1.0 GENERAL REQUIREMENTS ............................................................................... 51 

2.0 SINGLE PHASE METERING 

2.1 Voltage and Current Rating ............................................................................ 51 

2.2 Location of Meter Position ............................................................................ 51 

2.3 Height of Meter Position ............................................................................... 52 

2.4 Meter Board ................................................................................................... 52 

2.5 Wiring Arrangements ..................................................................................... 53 

3.0 THREE PHASE WHOLE CURRENT METERING 

3.1 Voltage and Current Rating ........................................................................... 54 


3.3 Height of Meter Position ............................................................................... 54 

3.4 Meter Board ................................................................................................... 54 

3.5 Wiring Arrangements ..................................................................................... 54 

4.0 GROUP METERING FOR WHOLE CURRENT METERING 

4.1 Location and Height of Meter Position .......................................................... 55 

4.2 Meter Panel .................................................................................................... 55 

5.0 LV CT METERING 


5.2 Meter Panel Requirements ............................................................................. 56 

5.3 LVCT Metering Installation Requirements ................................................... 57 

5.4 Mounting of Metering LVCTs ....................................................................... 57 

6.0 MEDIUM AND HIGH VOLTAGE METERING 

6.1 General ........................................................................................................... 58 

6.2 Specifications of Metering PTs and CTs ........................................................ 59 

6.3 Test Certificates .............................................................................................. 59 

6.4 Metering Cubicle ............................................................................................ 60 

6.5 Location of Metering Cubicle ........................................................................ 60 

6.6 Power Supply Point for Remote Meter Reading ............................................ 60 

6.7 Cable Requirement ......................................................................................... 60 

6. Specification of Mild Steel Kiosk for Medium and High 

Voltage Metering .............................. .............................. ............................. 61 

6.9 Sealing Facilities ............................................................................................ 62 

TENAGA 


49

ABBREVIATIONS: 

TNB 

LV 

MV 

HV 

CT 

PT 

Tenaga Nasional Berhad 

Low Voltage 

Medium Voltage 

High Voltage 

Current Transformer 

Potential Transformer 

50 TENAGA 


1.0 GENERAL REQUIREMENTS 

1.1 All the necessary meters for measuring the consumption of electricity shall be provided and maintained by 

TNB. TNB shall determine the point at which every supply line shall terminate in any premises in view of ease 

of accessibility to TNB’s personnel. 

1.2 At any point in the premises at which supply line or lines terminate, the developer/consumer shall provide 

the meter board or meter panel or meter cubicle as required for the installation of meter and their accessories. 

TNB may change any meter or its position in any premises as deemed necessary at any time for purposes of 

maintenance and meter reading. 

1.3 For low voltage supply requiring CT metering, TNB shall provide low voltage CTs for the meter installation. 

The CTs shall be of the single ratio and single purpose type. 

1.4 For medium and high voltage consumers, where the CTs are incorporated in switchgear panels, the consumer 

shall provide the metering CTs and PTs according to TNB’s specifications. The manufacturer’s test certificates 

for the metering CTs and PTs shall be the submitted and approved by TNB before the metering installation. The 

metering CTs shall be subjected to testing by TNB and a floor mounted metering cubicle must be provided. 

1.5 The Electrical Consultant/Registered Electrical Contractor should ensure that he has clearly understood the 

metering requirements of TNB as detailed below. Should there be any doubt, he should consult the TNB 

Distribution Division Local Office. 

1.6 The metering guidelines are subjected to change from time to time. 

2.0 SINGLE PHASE METERING 

2.1 Voltage And Current Rating 

The voltage supply shall be 240V. The normal current rating of the electronic meter shall be 10A- 

100A. The consumer/developer is advised to consult TNB Distribution Division Local Office for any 

enquiries. 

2.2 Location of Meter Position 

i. The meter board which accommodates TNB’s service cutout, meters and other auxiliary equipment 

shall, as far as is practical, be located near the termination of the service line and facing the main 

entrance of the premises. 

TENAGA 


51

ii. 

iii. 

iv. 

Where it is necessary to terminate the service line in a position outside the premise and exposed to the 

weather, prior approval shall be obtained for such a location from TNB Distribution Division Local 

Office. 

For domestic consumers, the meter shall be located at the premises and it is recommended that the meter 

shall be placed at the gate post. 

Other than domestic consumers, the meter that is located outside the premises shall be in a weather 

proof and ventilated panel/area which is suitable for meter installation and meter reading. 

v. Group metering for multi tenanted consumers or open commercial outlets shall be addressed in Section 

4.0 

vi. 

vii. 

The installation of the meter board in kitchens, bedrooms, bathrooms, utility rooms and in location 

injurious to the metering equipment or to the safety of personnel shall not be permitted, e.g. above a 

cooker point, hot rooms, below the opening for rising mains, directly in a riser duct, over a trunking or 

stairways, etc. 

Meter and their accessories should be installed only in clean and dry location not exposed to the 

weather or mechanical injury, free from vibration and not expose to direct sunlight and rain.viii. 

2.3 Height Of Meter Position 

i. The height of the meter board in the consumer’s premise at the wall facing the main entrance shall be 

1.75m (top of the meter) above ground level. 

ii. 

iii. 

The height of the meter board at the gate post shall be between minimum 1.0m and 1.5m above ground 

level. 

For other cases, the height of meter position shall be at maximum of 1.75m (top of the meter). 

2.4 Meter Board 

i. The meter board shall be: 

• Any hard wood chemically treated against attack by termites (Plywood is NOT to be used). 

• Any new material shall be subjected to SIRIM’s approval for non-hygroscopic, non-ignitable, ultra 

violet stabilized and distortion free under high outdoor temperature as well as subject to TNB’s 

prior approval. 

• Meter board other than wood shall be transparent. 

52 TENAGA 


ii. 

iii. 

iv. 

The tickness of board shall be at least 2 cm with a border 1.5 cm so that fixing screws for meter cannot 

penetrate and puncture the insulation of wires behind the board. The diagram of the board is shown in 

Appendix 21, Drawing No 1. Other than wood, the thickness of the approved material shall be minimum 

3 mm and the board’s depth shall be 2 cm. 

The arrangement for the meter, cut out, termination wires and the recommended size of the board is 

shown in Appendix 22, Drawing No. 2A and 2B. 

All board shall be rigidly fixed by a minimum of 5 fixing screws where one screw shall be at the center 

of the meter. The length of the screw at the center of the meter board must be long enough to penetrate 

the wall. 

v. The consumer’s main switches and accessories are not allowed to be installed on the same board. 

vi. 

vii. 

viii. 

In the case of meter installation outside the consumer’s premise, a suitable weather-proof, well-ventilated 

box with the transparent meter board approved by TNB shall be provided by the consumer at his own 

expense to house the cable termination and meter board. The door cover shall have a transparent window 

correctly positioned in front of the meter to enable meter reading. The recommended meter box and 

board is shown in Appendix 23, Drawing No. 3A. 

Consumers whose nature of business involve very dusty or dirty environment shall be required to have 

a transparent cover to protect the meter installation. 

In the case of outdoor meter installations at poles for e.g. temporary supply or in mining areas, the 

recommended meter box is shown in Appendix 24, Drawing No. 3B. 

2.5 Wiring Arrangement 

i. The size of meter cables shall not exceed 35sq.mm according to the current rating of the meter which is 

10A – 100A. 

ii. 

iii. 

The wiring at the meter board shall be dependent on the type of material used as follows: 

• Internal wiring for transparent meter board 

• External wiring for non transparent meter board 

The termination of wiring at the meter terminals must have extra length of 4cm for maintenance purposes 

in case of using clamp-on ammeter, etc. 

TENAGA 


53

3.0 THREE PHASE WHOLE CURRENT METERING 

3.1 Voltage And Current Rating 

The voltage supply shall be 415V. The normal current rating of the meter shall be 10A-100A. The consumer/ 

developer is advised to consult the TNB Distribution Division Local Office. 

3.2 Location of meter position 

The requirements given in 2.2 (i) – (vii) applies for the locations of three phase meter position. 

3.3 Height of meter position 

The requirements given in 2.3 (i) – (iii) applies for the height of three phase meter. 

3.4 Meter Board 

i. The recommended size and arrangement of the three phase meter, cutouts and neutral link for the 

overhead and underground service is as shown in Appendix 25, Drawing No. 4A – 4C respectively. 

ii. 

iii. 

iv. 

The meter panel can be of mild steel or other TNB approved material and of a thickness not less than 

1.5mm. 

The meter shall be fixed on a transparent meter board of thickness 5mm. Usage of any other material 

shall be subjected to TNB’s approval and recommended to be transparent. 

The requirements given in 2.4 (iv) – (viii) applies for the three phase meter board. 

3.5 Wiring Arrangement 

i. The requirement given in 2.5 (i) – (iii) also applies for the three phase wiring arrangement. 

ii. Wiring colour scheme shall follow : 

• Incoming to meter : 

Red phase = red colour 

Yellow phase = yellow colour 

Blue phase = blue colour 

Neutral = black colour 

• Outgoing from meter : 

All phases = black colour. 

iii. For external wiring, please refer to Appendix 26 Drawing No. 4D, 4E and 4F. 

54 TENAGA 


4.0 GROUP METERING FOR WHOLE CURRENT METERING 

4.1 Location and height of meter position 

i. In multi-tenanted premises for e.g. high rise buildings, residential office/shopping complexes, flatted 

factories etc the meters shall be grouped at each floor of the tenants metering. There may be more than 

one group of metering location at each floor. 

ii. 

iii. 

iv. 

In open commercial outlets for e.g. hawker centres, there shall be centralized metering where the meter 

panel or box shall be rigidly and vertically mounted. 

The individual meter shall be properly and eligibly labelled with permanent metal plate to indicate 

clearly the meter supplying to the respective consumer. 

The height from the top of the meter panel shall not exceed 2.1m. 

4.2 Meter Panel 

i. The meter panel can be of mild steel or other TNB approved material and of thickness not less than 1.5 

mm. 

ii. 

iii. 

iv. 

Each meter panel shall accommodate a maximum of 5 meters only. 

The recommended size and arrangement of the meters, cutouts, and neutral link is as shown in Appendix 

27, Drawing No. 5A – 5C for single phase group metering and Appendix 28, Drawing No. 5D – 5F for 

three phase group metering. 

The holes for the termination wire to the meters shall have appropriate bushings to prevent the wires 

from being damaged. 

v. In the case of meter box with a cover, the metal plate on which the meters are mounted as well as the 

cover shall have minimum two metal hinges to enable it to be swung open for at least 90 o . 

vi. 

The wiring arrangement shall follow: 

• Single phase – Section 2 no. 2.5 

• Three phase – Section 3 no. 3.5 

TENAGA 


55

5.0 LVCT METERING 

LV consumers taking more than 100A per phase shall require current transformers for the metering scheme. 

5.1 Location Of Meter Position 

i. The Electrical Consultant Engineer / Electrical Contractor is required to arrange for a suitable space for 

the metering installation on a panel/cubicle separate from the main switchboard. 

ii. 

iii. 

The position of the meter panel/cubicle shall be determined by the type of LV supply. The final metering 

position shall be decided by TNB. 

Consumers whose supplies are coming from a substation (load>800A) shall have the meter panel/ 

cubicle preferably installed inside TNB substation. 

iv. The maximum distance of the cable from the CTs to the meter panel allowable is shown in Table 1 

below. Prior approval for location of the metering panel shall first be obtained from TNB. 

Table 1 

CT Burden 

VA 

Secondary Rated 

Current 

A 

Cross Connection of 

Conductor 

mm2 

Maximum Distance 

Allowable 

m 

7.5 

7.5 

5 

5 

2.5 

4.0 

12.0 

20.0 

Where meter burden for current circuit is: L.V. = 0.5 VA/ph 

5.2 Meter Panel Requirement 

i. The meter panel shall be of mild steel or other approved material, and of a thickness not less than 

1.5mm. 

ii. The meter panel for single feeder metering shall be detachable and as illustrated in Appendix 29, 

Drawing No. 6A and 6B. 

iii. 

iv. 

For multi-feeder metering, separate meter panels are to be used for each feeder. 

Provisions shall be made for sealing of the meter panel/cubicle. 

56 TENAGA 


v. The panel cover and metal plate with TNB’s meter(s) mounted thereon shall be able to swing or open 

out for at least one right angle i.e. 90 o . 

vi. 

vii. 

The meter panel cover and metal plate shall have at least two metal hinges. 

Appropriate bushing shall be provided in all openings/ holes for the meter wiring. 

5.3 LVCT Metering Installation Requirements 

i. The height from the ground to the top of the meter panel shall not exceed 1.8 meters. 

ii. 

iii. 

iv. 

The switchboard shall be completed with all its components and accessories installed, and shall be 

mounted securely in its final position before the TNB’s meter(s) can be installed. 

There shall be working space of 1 m in front of the meter panel for the meter installation and meter 

reading. In the case of meter cubicle, there shall be working space of 1 m all round the cubicle. 

A 12 core 2.5 mm 2 or 4 mm 2 steel wire armoured cable shall be provided between the meter panel and 

current transformers and voltage source. The armoured cable shall not be buried or enclosed 

v. A 6.0 mm tap-hole plus screw/washer shall be provided on each busbar to facilitate connection of the 

voltage supply to the meter voltage coils. 

5.4 Mounting of Metering LVCTs 

i. Current transformers shall be mounted on incoming busbar for easy installation, removal or replacement, 

where necessary. 

ii. 

iii. 

iv. 

Proper bakelite clamps shall be provided to secure the metering current transformers in position. 

Adequate insulation shall be provided between the metering current transformers and the busbar. 

Where the incoming supply is controlled by a circuit breaker in consumer’s main switchboard, the 

metering CTs shall be installed before the circuit breaker and the meter voltage connections made. 

v. A two leaf door provided with hasp for locking facility shall be used to close the CT chamber. 

vi. 

There shall be working space of minimum 1 m from the back of the switchboard to the wall for 

installation of metering current transformers. 

TENAGA 


57

vii. 

Dimension for LVCTs are as shown in Table 2 for the appropriate sizing of the busbar. 

Table 2 

C.T Ratio Internal Diameter External Diameter 

100/5 35 mm 90 mm 

150/5 40 mm 90 mm 

200/5 40 mm 90 mm 

300/5 60 mm 100 mm 

400/5 60 mm 100 mm 

500/5 65 mm 125 mm 

600/5 65 mm 125 mm 

800/5 65 mm 125 mm 

1000/5 85 mm 125 mm 

1200/5 100 mm 140 mm 

1600/5 100 mm 140 mm 

2000/5 110 mm 145 mm 

viii. 

The Electrical consultant Engineer / Electrical Wiring Contractor shall ensure the above requirements 

are complied wih. Should there be any deviation(s) from the requirements, he should consult the TNB 

Distribution Division Local Office. 

6.0 MEDIUM AND HIGH VOLTAGE METERING 

6.1 General 

Currrent transformers (CTs) and potential transformers (PTs) for all metering shall be provided by the consumer. A 

consumer shall be required to install suitable metering CTs and PTs at his incoming switchgear at his own expense 

following TNB’s specifications and subjected to test by TNB. 

A floor mounted metering cubicle as per Appendix 19, Drawing No. 7A-7L shall be provided by the consumer in the 

specified metering room for the installation of TNB’s meter. 

The schematic drawings together with the load data using the form as in Appendix 20 are required to be forwarded to 

the TNB Metering Services HQ/Regional for his advice on the metering requirements. All drawings must be signed by 

a Professional Engineer. 

58 TENAGA 


6.2 Specifications For Metering PTs and CTs 

Metering PTs 

Ratio : Vs / √3V 

0 / √3V 

* where Vs is the supply voltage given to the consumer 

Class : 0.5 

Burden : 100VA minimum. 

Sharing can be allowed provided separate fusing is provided and the burden of the shared load 

shall not exceed 10 VA. If the burden of the shared load is more than 10 VA, then 200 VA PT 

shall be used. 

Unit : 3 Nos. for each feeder 

Standards : BS.3941 or IEC 60044-2 (1997) 

Metering CTs 

For consumer taking 6.6kV, 11kV, 22kV and 33kV (Indoor breaker) 

Ratio : Is/5A 

* where Is is the primary ratio of the metering CT 

Class : 0.2 

Burden : 15VA 



For consumer taking 33kV (with outdoor breaker), 132kV and 275kV, 

Ratio : Is/1A 

* where Is is the primary ratio of the metering CT 

Class : 0.2 

Burden : 30VA 



6.3 Test Certificate 

All metering CTs and PTs together with the Manufacturer’s Test Certificate shall be submitted with test results of the 

installed equipment by the Registered Service Engineer. The schematic and wiring diagram of the particular consumer’s 

switchgear signed by a Professional Engineer shall be supplied to facilitate metering equipment installation. 

TENAGA 


59

6.4 Metering Cubicle 

The consumer shall provide an appropriate metering cubicle to specifications stated in Appendix 19. The maximum 

distance allowable between the metering CTs and the metering cubicle is shown in Table 3. The consumer shall send the 

cubicle to TNB Metering Services HQ/Regional office for wiring up. 

Table 3 

CT Burden 

(VA) 

15 

15 

30 

30 

30 

30 

Secondary Rate Current 

(Amps) 

5 

5 

5 

5 

1 

1 

Cross Connection Of 

Conductor 

(mm 2 ) 

2.5 

4.0 

2.5 

4.0 

2.5 

4.0 

Maximum Distance 

Allowable 

(m) 

30 

47 

65 

100 

1,647 

2,545 

Where meter burden for current circuit = 0.5 VA/ph 

6.5 Location of Metering Cubicle 

An enclosed locked room specifically for the purpose of installing the floor mounted metering cubicle shall be provided. 

The minimum area shall be 1.5 m by 1.7 m. 

6.6 Power Supply Point for Remote Meter Reading 

A 13 Amps Switch Socket Outlet (S.S.O) is to be provided and shall be installed at the top of metering cubicle. 

6.7 Cable Requirement 

6.7.1 Indoor Breakers 

The consumer shall provide and connect a 12-core PVC/SWA/PVC of 2.5mm 2 or higher between the consumer high 

voltage switchboard and the metering cubicle. There shall be no intermediary joint. 

The armoured cable shall not be buried or enclosed. Preferably it shall be laid on cable tray. 

60 TENAGA 


6.7.2 Outdoor Breakers 

A ‘marshalling box’ with independent sealing facility shall be provided by the consumer for the purpose of terminating 

the secondary circuit cabling of the current transformer and voltage transformer. 

The consumer shall provide and connect PVC/SWA/PVC of 4mm 2 or higher between the ‘marshalling box’ and the floor 

mounted metering cubicle. 

6.8 Specification of mild steel kiosks for medium and high voltage metering 

6.8.1 General 

This specification spells out the requirement for fabrication of steel floor mounted metering cubicle for the mounting of 

meters and accessories commonly installed for the purpose of medium and high voltage metering. 

Unless otherwise stated, all material and accessories used in the fabrication of the kiosks shall be specified in Appendix 

19 (Drawing 7A-7L). 

The overall dimension shall be as specified in the drawings, but minor alteration to the positions and sizes of the cut-out 

panels, holes, etc. may be required to be made in the whole or part of the consignment. 

6.8.2 Construction details 

i 

Physical Dimensions 

The overall dimension of the kiosks shall be as specified in the drawings. 

All dimension are stated in Metric units. 

The permissible tolerance shall be ± 4.0 mm. 

ii 

Materials 

The kiosk shall be constructed of either plain or electro-plated mild steel sheets of minimum thickness 

of 1.00 mm. 

iii 

External Construction Detail 

Provision of a double – left closed fitting mild steel doors shall be made for easy accessibility at the 

back of the kiosks. The doors shall be hinged such that they can be operated through an angle of 

180 o . The doors shall be lockable for security reasons, an operation of the doors shall be through 

TENAGA 


61

a handle provided with a lock. The lock shall be chrome-plated, of good quality and tamper-proof. 

Three () keys are to be provided for each lock. 

In addition, hasp shall be provided for the purpose of locking the door with padlock. 

Ventilation slits shall be provided as shown. These shall be rendered vermin-proof by fitting brass gauze 

screens in the interior of the kiosks. The cut-out panels, holes for the mounting of meters, test terminal 

block, time switches and fuses shall be provided in the front panels of the kiosks. 

The edge of the cutting or drilling shall be rendered smooth. 

The arrangement for meters and accessories will be as shown in the drawings. 

iv 

Internal Construction Details 

The kiosk shall be constructed for door mounting. A base frame on which the kiosks sites shall be 

provided as shown in Appendix 19 (Drawing 7C) for 2 feeder kiosk and Appendix 19 (Drawing 7F) 

for 3 feeder kiosks. Holes in the frame shall be provided for the passage of four floor mounted studs 

to which the kiosk can be anchored. A base plate with provision for cable entries shall be removable 

through four mounting screws at each corner. 

Mild steel cross bars of at least 35 mm x 2 mm with 4 mm diameter holes spaced evenly apart shall be 

provided for anchoring bunched conductors. Alternatively, mild steel slotted angles shall be provided 

and this is preferable. These cross bars shall form the framework of the kiosk. 

v 

Painting and Finishing 

The kiosk shall be treated to prevent corrosion by rust. This can be achieved either by using electro-plated 

mild steel sheets or by painting the mild steel metal surface with zinc-based anti corrosive paint. 

The interior surface shall be painted with matt white paint. 

The base frame shall be black in colour. 

6.9 Sealing Facilities 

Facilities for sealing of all connection of metering wires and incoming cable at consumer’s high voltage 

switchboard shall be provided by the consumer. 

Should there be by any deviation from the foresaid requirement, the Electrical Consultant Engineer should 

consult TNB Distribution Division Local Office and TNB Metering Services HQ/Regional Unit. 

62 TENAGA 


GLOSSARY AND DEFINITIONS 

In this guideline, the following words and expressions shall bear the following meanings: 

Active Energy 

Active Power 

Adequate / Adequacy 

Apparent Power 

Automatic Voltage Regulator 

Capacitor Bank 

Capacity 

Connection Point 

Consumer 

Contingency 

Current Harmonic Distortion 

The electrical energy produced, flowing, or supplied by an electric 

circuit during a time interval, being the integral with respect to 

time of the instantaneous power, measured in units of watt-hours 

(wh) and multiples thereof. 

The product of voltage and the in-phase component of alternating 

current measured in units of watts and multiples thereof. 

The ability of the distribution system to provide acceptable and 

continuous supply while remaining within component ratings 

during contingencies. 

The product of voltage and of alternating current measured in units 

of volt amperes. Is also the square root of the sum of the squares of 

the active power and the reactive power. 

A System for controlling generating unit or transformer voltage 

within setlimits. 

Electrical equipment used to generate reactive power and support 

voltage levels on distribution and transmission lines in periods of 

high load. 

The net MW and MVAr capacity of a generating unit, or any other 

transmission/distribution apparatus at a particular time, to supply 

electrical energy. 

The agreed point of supply established between a distributor and 

other entity. 

A person who engages in the activity of purchasing energy supplied 

through a Transmission or distribution system; and/or the final end 

User of energy. 

In respect of a transmission or distribution network, a sequence of 

related Events which result in outages of one or more transmission 

or distribution elements. 

It is the measure of the departure of the a.c. current waveform 

from sinusoidal shape, that is caused by the addition of one or 

more harmonics to the fundamental. 

TENAGA 


63

Current Transformer (CT) 

Customer 

Demand 

Discrimination 

Distribution Network 

Distribution System 

Disturbance 

Electrical Contractors 

Electrical Consultant 

Engineer 

A transformer for use with meters and/or protection devices in 

which the current in the secondary winding is, within prescribed 

error limits, proportional to and in phase with the current in the 

primary winding. 

Please refer to the term consumer. 

The demand of MW and MVAr of electricity (i.e., both Active and 

reactive power), unless otherwise stated, at a particular time or 

during a time period. 

The quality where a relay or protective system is enabled to pick 

out and cause to be disconnected only the faulty apparatus. 

A system comprising of electrically connected equipment or 

elements that produce, transport, transform, control, and consume 

electrical power at voltage levels of 33kV, 22kV, 11kV, 6.6kV, 

415V and 240V. 

The system consisting (wholly or mainly) of electric lines which are 

owned and operated by distributor and used for the distribution of 

electricity from grid supply points or generating units or other entry 

points to the point of delivery to consumers or Other distributors. 

Any perturbation to the electric system caused by the sudden loss 

of generation or interruption of load. 

Are contractors having a license from PKK in the electrical category 

(Class I, II or III) and also registered with the Energy Commission 

and have own certified chargeman and wireman also registered 

with the Energy Commission. 

Professional Electrical Engineer registered with the Institution of 

Engineers Malaysia (IEM) or Board of Engineers Malaysia (BEM) 

after having fulfill all requirements to be a professional engineer 

as specified by IEM or BEM. 

64 TENAGA 


Embedded Generating Unit 

A generating unit connected within a distributrion network and not 

having direct access to transmission network. This includes an embedded 

generator connected to its own Network which Network is Interconnected 

with the distributor’s Network either directly or through a step up 

transformer. 

Embedded Generation 

Embedded Generator 

Energy (Active and Reactive) 

Embedded Generator 

Frequency 

Generation 

Generating Plant 

Generating System 

Generating Unit 

Interface 

Interruption 

High Voltage (HV) 

Load 

Loading 

The production of electrical power by converting another form of energy in a 

generating unit that is connected to the distribution system. 

A generator or consumer who owns, operates, or controls an embedded 

generating unit. 

Active energy is the electrical energy produced, flowing or supplied during 

a time interval measured in units of watt-hours (Wh) or standard multiples 

thereof. Reactive energy is the energy produced, flowing or supplied during 

a time interval measured in units of volt-ampere-hours reactive, (varh) or 

standard multiples thereof. 

A generator or consumer who owns, operates, or controls an embedded 


The number of alternating current cycles per second (expressed in hertz) at 

which alternating current electricity is operating. 

The production of electrical power by converting another form of energy in a 


Please refer to the term generating system. 

A system comprising one or more generating units. 

Any apparatus which produces electricity. 

Point of connection defining the boundary between entities. 

The loss of service to one or more consumers or other facilities and is 

the result of one or more component outages for a sustained duration of 

greater than 1 minute, depending on the system configuration. 

A voltage equal to or greater than 50 kV. 

To Active, Reactive, or apparent power, as the context requires, generated, 

transmitted, distributed or consumed. 

The apparent power level at which each element of the network is 

operated. 

TENAGA 


65

Low Voltage or LV 

Medium Voltage or MV 

Meter 

Metering 

Metering Data 

Metering Point 

Metering System 

MV Distribution Network 

Outage 

Planning Criteria 

Planning & design criteria 

Point of Interface 

Power Factor 

Power Quality 

A voltage level less than 1000 volts or 1 kV. 

A voltage equal to or exceeding 1 kV but not exceeding 50 kV. 

A device complying with Standards which measures and records the production 

or consumption of electrical energy. 

Recording the production or consumption of electrical energy. 

The data obtained from a metering installation, the processed data or substituted 

data. 

The point of physical connection of the device measuring the current in the 

power conductor. 

The collection of all components and arrangements installed or existing 

between each metering point and the metering database. 

The various circuits and apparatus owned by the distributor operating at 

primary phase to phase voltages above 1 kV and less than 50 kV. 

Describes the sate of the component when it is not available to perform the 

intended function due to some Event associated with that equipment. duration 

will count toward computation of SAIDI. 

Please refer to the term planning and design criteria 

Refers to a set of measures for assessing the performance of the distribution 

system during the planning stage. 

A designated boundary of ownership between the distributor and the other 

entities. 

The ratio of active power to apparent power. 

It is the measure of the purity of supply voltage and current waveforms. 

Power Quality Characteristics In this Code the term refers to the measures used for determining the purity of 

the a.c. voltage or current waveforms. 

66 TENAGA 


Protection 

Protection Apparatus 

Protection System 

Prudent Utility Practices 

Reactive Energy 

Reactive Power 

Reliability 

Security 

Security of Supply 

Single Contingency 

Substation 

The provisions for detecting abnormal conditions on a system and initiating 

fault clearance or actuating signals or indications. 

A group of one or more protection relays and/or logic elements designated 

to perform a specified protection function. 

A system, which includes equipment, used to protect facilities from damage 

due to an electrical or mechanical fault or due to certain conditions of the 

power system. 

With respect to the distributor, means the exercise of that degree of skills, 

diligence, prudence and foresight consistent with Electricity Supply Act 

1990 and the Regulations, condition of Licence, standards, the Code and 

the distributor owned standards and practices. 

A measure, in varhours (varh) of the alternating exchange of stored energy 

in inductors and capacitors, which is the time-integral of the product of 

voltage and the out-of-phase component of current flow across a connection 

point. 

The product of voltage and current and the sine of the phase angle between 

them measured in units of volt amperes reactive. The rate at which reactive 

energy is transferred. 

In the context of a distribution system is a measure of availability of 

Adequate and secure supply to the consumers 

Means security Supply. 

The ability of the distribution system restore supply to consumers following 

momentary or temporary interruptions. 

In respect of a transmission or distribution network, a sequence of related 

Events which result in the removal from service of one transmission or 

distribution line, or transformer. The sequence of Events may include the 

application and clearance of a fault of defined severity. 

A facility at which two or more lines are switched for operational purposes. 

May include one or more transformers so that some connected lines operate 

at different nominal voltages to others. 

TENAGA 


67

Supply Security 

Total Harmonic Distortion 

Transformer 

Distribution System 

Voltage Dip 

Voltage Harmonic Distortion 

Voltage Sag 

Voltage Sensitive Load 

Voltage Transformer (VT) 

Please refer to the term Security Supply. 

The departure of a wave form from sinusoidal shape, that is caused by 

the addition of one or more harmonics to the fundamental, and is the 

square root of the sum of the squares of all harmonics expressed as a 

percentage of the magnitude of the fundamental frequency. 

A plant or device that reduces or increases the voltage of alternating 

current. 

A distribution system that: () is used to convey, and control the 

conveyance of, electricity to consumers (whether wholesale or retail); 

and () is connected to another such system. 

Transient reduction in voltage magnitude measured as the percentage 

or per unit reduction of the voltage magnitude to the nominal voltage 

magnitude. 

It is the measure of the departure of the a.c. voltage waveform from 

sinusoidal shape, that is caused by the addition of one or more harmonics 

to the fundamental. 

Transient reduction in voltage magnitude measured as the percentage or 

per unit remaining voltage magnitude to nominal voltage magnitude. 

A load that will mal-operate on transient distortion of supply voltage 

sinusoidal waveform. 

A transformer for use with meters and/or protection devices in which the 

voltage across the secondary terminals is proportional to and in phase 

with the voltage across the primary terminals. 

68 TENAGA 


Appendix Topic Page 

1 List of Kedai Tenaga in Semenanjung Malaysia 70 

2 Flowchart For TNB New Supply Application Process For Load Up To 100kVA 74 

3 

4 

Permohonan Bekalan Elektrik 100kVA) 81 

10 Cas Sambungan Pengguna - Notis 82 

11 Sample Of Appointment Letter of Consultant Engineer 83 

12 Summary Of Load Data For Demand Exceeding 100kVA (∼140A) 84 

13 Location Plan 87 

14 Borang A – Borang Perakuan Pajakan / Pindahmilik Tanah Pencawang 88 

15 Maximum Demand Estimates for Mixed Development Area 90 

16 Demand Forecast & Sub-Station Capacity for LV System 91 

- Site Plan/Location Plan and Layout Plan 

17 Single Chamber - Substation Layout Drawings for single Chamber 92 

- Logo Details for Single Chamber 

- Site Plan/Location Plan and Layout Plant 

18 Double Chamber - Substation Layout Drawings for Double Chamber 95 

- Logo Details for Double Chamber 

19 

Drawing 7A, 7B, 7C, 7D, 7E, 7F, 7G, 7H, 7I & 7J, 7K & L : MV & HV 

Metering Cubicle 

20 Borang Maklumat Awal Perjangkaan Besar 109 

21 Drawing 1 : Single Phase Meter Board 110 

22 Drawing 2A & 2B : Single Phase Metering Arrangement 111 

23 Drawing 3A : Outdoor Metering Panel 113 

24 Drawing 3B : Pole-mounted Single Phase Metering Panel 114 

25 Drawing 4A & 4B : Three Phase Overhead Incoming 115 

25 Drawing 4C : Three Phase Underground Incoming 117 

26 Drawing 4D, 4E & 4F : External Surface Wiring 118 

27 Drawing 5A, 5B & 5C : Single Phase Group Metering 121 

28 Drawing 5D, 5E & 5F : Three Phase Group Metering 124 

29 Drawing 6A : LVCT Single Feeder Metering 127 

29 Drawing 6B : LVCT Summation Metering 127 

69 

75 

76 

78 

79 

98

Appendix 1 

List of Kedai Tenaga in Semenanjung Malaysia 

Kedai Tenaga Alamat No Telefon No Fax 

PUTRAJAYA/ 

CYBERJAYA 

Kedai Tenaga Putrajaya Lot 25, Tkt. 3, Kompleks Anjung, 62000 Precint 1, Putrajaya 03-88894835 03-88894693 

WILAYAH 

PERSEKUTUAN 

KUALA LUMPUR 

Zon K.L Pusat 

Kedai Tenaga Pekan Ampang TNB, Lot 18 & 19 Jalan Besar Ampang, 68000 Ampang, Kuala Lumpur. 03-42969561/62 03-42950692 

Kedai Tenaga Pudu TNB, 508-510 Bangunan Bee Hin, Jalan Pudu, 55100 Kuala Lumpur. 03-92215341 03-92221800 

Kedai Tenaga KL-Pusat 

Zon K.L Barat 

TNB, Aras Bawah, Menara Selborn, 153 Jalan Tun Razak, 50400 Kuala 

Lumpur. 

03-26814122 03-26812637 

Kedai Tenaga Kepong TNB, Tingkat Bawah, Wisma TNB, Jalan Kepong, 50990 Kuala Lumpur. 03-62506020 03-62506509 

Kedai Tenaga Medan Bonus TNB, 83, Medan Bonus, Jalan Masjid India, 50732 Kuala Lumpur. 03-26987366 03-26930292 

Kedai Tenaga Bangunan Penjanaan 

Zon K.L Timur 

TNB, Tingkat Bawah, Bangunan Penjanaan, Ibu Pejabat TNB, 59200 Kuala 

Lumpur. 

03-22965504 

Kedai Tenaga Taman Melawati TNB, No. 247 & 248, Jalan Bandar 13, Taman Melawati, 53100 Kuala Lumpur. 03-41079355 03-41079373 

Kedai Tenaga Setapak TNB, 128, Taman Sri Setapak, Batu 3 1/2, Jalan Gombak, 53000 Kuala Lumpur. 03-40222020 03-40222021 

Kedai Tenaga Batu Caves 

Zon K.L Selatan 

TNB, No. 24, Jalan Medan Batu Caves 1, Medan Batu Caves, 68100 Batu 

Caves. 

Kedai Tenaga Jalan Klang Lama TNB, 2 Jalan 1/137C, Bedford Business Park, Batu 5, Jalan Klang Lama, 58200 

Kuala Lumpur. 

03-61869103 03-61869104 

03-77843844 03-77838344 

Kedai Tenaga Taman Pertama TNB, 31 & 32, Jalan 2/90, Taman Pertama Cheras, 56000 Kuala Lumpur. 03-92877179/69 03-92877176 

SELANGOR 

Kedai Tenaga Sungai Besar TNB, Lot 9727 & 9728, Jalan Anggerik, 45300 Sungai Besar 03-32241226 03-32242464 

Kedai Tenaga Kuala Selangor TNB, Jalan Batu Harimau, 45000 Kuala Selangor 03-32892020/1586 03-32893161 

Kedai Tenaga Subang Jaya TNB, Subang Square, East Wing E-01-0, Jalan SS 15/4G, 47500 Subang Jaya 03-56337000 03-56314659 

Kedai Tenaga Klang TNB, Jalan Meru, Peti Surat 2010, 41990 Klang 03-33412020 03-33422020 

Kedai Tenaga Bangi TNB, Lot 1, Jalan 6C/13, 43650 Bandar Baru Bangi 03-89264990 03-89263966 

Kedai Tenaga Kajang TNB, Jalan Besar, 43000 Kajang 03-87343704 

Kedai Tenaga Serdang TNB, No. 12G, Jalan SR 7/4, Taman Serdang Raya, 43300 Seri Kembangan 03-89458491 

Kedai Tenaga Kuala Kubu Bharu TNB, Jalan Rasathurai, 44000 Kuala Kubu Bharu 03-60643020 03-60642969 

Kedai Tenaga Salak Tinggi TNB, No. 19, Jalan ST 1C/6 Medan 88, Bandar Baru Salak Tinggi, 43900 

Sepang 

03-87064413 

Kedai Tenaga Petaling Jaya TNB, No. 72, Jalan Selangor, 46990 Petaling Jaya, 03-79541590 / 57733 03-79559046 

Kedai Tenaga Shah Alam TNB, Persiaran Damai, Seksyen 11, 40702 Shah Alam 03-55102020 03-55103643 

Kedai Tenaga Banting TNB, Lot 4, Jalan Bunga Pekan, 42700 Banting 03-3187 2020 03-31871782 

Kedai Tenaga Pelabuhan Klang TNB, Jalan Kem, P.O. Box 220, 42009 Pelabuhan Klang 03-31672020 03-31679113 

Kedai Tenaga Sg. Pelek TNB, Lot 93-11, Jalan Besar sungai Pelek, 43950 Sepang 03-31413012 

Kedai Tenaga Rawang TNB, No. 211, Jalan Maxwell, 48000 Rawang 03-6092 7000 03-60916330 

Kedai Tenaga Puchong TNB, No. 22, Jalan Persiaran Puteri 1, Bandar Puteri, 47100 Puchong 03-80609224/9373 03-80609854 

70 TENAGA 


Appendix 1 

List of Kedai Tenaga in Semenanjung Malaysia 

NEGERI SEMBILAN 

Kedai Tenaga Seremban 

TNB, Lot 14, Wisma Arab Malaysian Business Centre, Jalan Tuanku Munawar 

70000 Seremban 

06-7675050 06-7634837 

Kedai Tenaga Bandar Baru Nilai TNB, PT 7444, Jalan BBN 1/2H, Putra Point, Bandar Baru Nilai, 71800 Nilai, 06-8500858/722 06-8500522 

Kedai Tenaga Tampin TNB, Lot 176, Jalan Besar, 73000 Tampin, 06-4411364 06-4411524 

Kedai Tenaga Port Dickson TNB, KM 3, Jalan Pantai, 71009 Port Dickson, 06-6472622/7700 06-6474101 

Kedai Tenaga Kuala Pilah TNB, Jalan Bahau, 72009 Kuala Pilah, 06-4811193 06-4815910 

Kedai Tenaga Kuala Klawang TNB, PT 54, Jalan Dato Menteri, 71600 Kuala Klawang, 06-6138361 06-6137446 

Kedai Tenaga Jempol TNB, 133 & 134, Jalan Mewah, 72100 Jempol, 06-4545802 06-4542905 

Kedai Tenaga Gemas TNB, No. 21, Jalan Pasar 73400 Gemas, 07-9484636 07-9482442 

Kedai Tenaga Rembau TNB, No. 7709, Lot 783, Jalan Mahkamah, 71300 Rembau 06-6855763/64 06-6854577 

Kedai Tenaga Seremban TNB, Jalan Dato Bandar Tunggal, 70990 Seremban 06-7652150 06-7644271 

Kedai Tenaga Gemencheh TNB, Lot 6717, Taman Gemencheh Baru, 73200 Gemencheh 06-4318262 

MELAKA 

Kedai Tenaga Melaka TNB, Jalan Banda Kaba, 75990 Melaka. 06-2828544 06-2826460 

Kedai Tenaga Masjid Tanah TNB, Jalan Besar, 78300 Masjid Tanah. 06-3843000/03 06-3844120 

Kedai Tenaga Merlimau TNB, Jalan Jasin, 77300 Merlimau. 06-2632517 06-2635041 

Kedai Tenaga Jasin TNB, JB 3636, Jalan Melaka, 77000 Jasin. 06-5292132 06-5292001 

Kedai Tenaga Alor Gajah TNB, No. 3055, Lot 11, Bangunan Prima, 78000 Alor Gajah. 06-5562840 06-5564453 

JOHOR 

Kedai Tenaga Johor Bahru TNB, Aras 1, Wisma TNB, Jalan Yahya Awal, 80100 Johor bahru 07-2192200 07-2192232 

Kedai Tenaga Johor Bahru TNB, Jalan Duke, 80000 Johor Bahru 07-2242513 07-2192232 

Kedai Tenaga Batu Pahat TNB, Jalan Bakau Chondong, 83000 Batu Pahat 07-4346088 07-4319727 

Kedai Tenaga Yong Peng TNB, No. 1, Jalan Kota 2, Taman Kota, 83700 Yong Peng 07-4677854 07-4675093 

Kedai Tenaga Batu Pahat TNB, Jalan Mohd Khalid, 83000 Batu Pahat 07-4329627 

Kedai Tenaga Johor Jaya TNB, No. 79-81, Jalan Molek 3/10, Taman Molek, 81100 Johor Jaya 07-3562753 07-3533044 

Kedai Tenaga Muar TNB, Jalan Sulaiman, 84009 Muar 06-9532950 06-9528739 

Kedai Tenaga Kluang TNB, Jalan Mengkibol, 86000 Kluang 07-7722020 07-7724410 

Kedai Tenaga Tangkak TNB, Jalan Payamas, 84900 Tangkak 06-9784067 06-9784598 

Kedai Tenaga Mersing TNB, No. 48, Jalan Ismail, 86800 Mersing 07-7992020 07-7992773 

Kedai Tenaga Simpang Renggam TNB, No. 1, Jalan Delima, Taman Samudera, 86200 Simpang Renggam 07-7551401 07-7551401 

Kedai Tenaga Segamat TNB, Jalan Hassan, 85000 Segamat, 07-9314020 07-9313744 

Kedai Tenaga Pontian TNB, Jalan Parit Masjid, 82000 Pontian 07-6871172 07-6870622 

Kedai Tenaga Pontian TNB, Jalan Kampung Sawah, 85100 Pekan Nenas, Pontian 07-6995801 

Kedai Tenaga Kota Tinggi TNB, Jalan Tun Habab, 81900 Kota Tinggi 07-8833013/2589 07-8834898 

Kedai Tenaga Kulai TNB, Lot 6610, Batu 18 1/4, Jalan Senai-Kulai, 81000 Kulai 07-6632128 07-6632267 

Kedai Tenaga Bandar Tenggara TNB, No. 6, Jalan Tun Ali, Bandar Tenggara, 81000 Kulai 07-8966977 

Kedai Tenaga Pasir Gudang TNB, L1-06/06A, Kompleks Pusat Bandar, Jalan Bandar, 81700 Pasir Gudang 07-2529176 07-2511362 

TENAGA 


71

Appendix 1 

List of Kedai Tenaga in Semenanjung Malaysia (cont.) 

PERAK 

Kedai Tenaga Ipoh TNB, Wisma TNB, Jalan Lahat, 30200 Ipoh 05-2532020 05-2410855 

Kedai Tenaga Kampar TNB, 16A Jalan Kuala Dipang, 31907 Kampar 05-4651199 05-4662858 

Kedai Tenaga Taiping TNB, No. 20, Jalan Istana Larut, 34000 Taiping 05-8082020 05-8073321 

Kedai Tenaga Kuala Kangsar TNB, Lot 1535, Jalan Sultan Iskandar Shah, 33000 Kuala Kangsar 05-7762 021 05-7762744 

Kedai Tenaga Teluk Intan TNB, Jalan Changkat Jong, 36000 Teluk Intan 05-6223 011/012 05-6213563 

Kedai Tenaga Seri Manjung TNB, Lot 1754, Jalan Dato Sri Kamaruddin, 32040 Seri Manjung 05-688 2020/4850 05-6884763 

Kedai Tenaga Bagan Serai TNB, Lot 7364, Jalan Taiping, 34300 Bagan Serai 05-7215020 05-7211293 

Kedai Tenaga Tanjung Rambutan TNB, Jalan Besar, Ulu Kinta, 31250 Tanjung Rambutan 05-533 2122 05-5332932 

Kedai Tenaga Bidor TNB, Lot 6121, Jalan Tapah, 35500 Bidor 05-434 3041/1020 05-4342870 

Kedai Tenaga Batu Gajah TNB, No. 29, Jalan Dewangsa, 31000 Batu Gajah 05-366 2021/1155 05-3662977 

Kedai Tenaga Gerik TNB, No 101, Jalan Takong Datok 33300 Gerik 05-7912855 05-7911950 

Kedai Tenaga Sungai Siput (U) TNB, 14-15, Jalan Ipoh, 31100 Sungai Siput(U) 05-5981234 05-5986050 

Kedai Tenaga Tanjung Malim TNB, No. 51, Jalan Taman Bunga Raya, 35900 Tanjung Malim 05-4597020 05-4595461 

Kedai Tenaga Gopeng TNB, 19-B, Jalan Kampung Rawa, 31600 Gopeng 05-3591533 

Kedai Tenaga Lenggong TNB, Lot 9073 & 9074, Taman Lenggong, 33400 Lenggong. 05-7677209 

Kedai Tenaga Slim River TNB, No. 615, Jalan Ahmad Boestaman, 35800 Slim River 05-4528020 05-4520031 

Kedai Tenaga Parit TNB, No. 12, Jalan Pejabat Pos 32800 Parit 05-3771020 05-3771439 

Kedai Tenaga Tapah TNB, No. 1, Jalan Masjid, 35000 Tapah 05-4013021 

Kedai Tenaga Ipoh TNB, No. 1-5, Jalan Dato Maharaja Lela, 30000 Ipoh 05-2549 534 05-2545199 

Kedai Tenaga Hutan Melintang TNB, No. 3, Lorong Wawasan 1, Jalan Hutan Melintang, 36400 Hutan Melintang 05-6416218 05-6414840 

Kedai Tenaga Menglembu TNB, Jalan Pasar, 31450 Menglembu, Ipoh 05-2813558 

KEDAH 

Kedai Tenaga Alor Setar TNB, No. 887, Jalan Sultan Badlishah, 05990 Alor Setar 04-7333737 04-7331167 

Kedai Tenaga Jitra TNB, Bt. 13 Jalan Changlun, 06000 Jitra 04-9171 004/455 04-9172646 

Kedai Tenaga P. Langkawi TNB, Jalan Ayer Hangat, 07000 Kuah, Pulau Langkawi 04-9666020 04-9667020 

Kedai Tenaga Pendang TNB, No. 119-121 Rumah Kedai 2 Tkt, Jalan Sukamari, 06700 Pendang, 04-7597294 04-7597141 

Kedai Tenaga Kuala Nerang TNB, No. 1A-1B, Pekan Kuala Nerang, 06300 Kuala Nerang 04-7866 021 04-7866290 

Kedai Tenaga Sungai Petani TNB, No. 23, Jalan Petri, 08009, Sg. Petani 04-4212 020 04-4218027 

Kedai Tenaga Guar Cempedak TNB, Lot 234, Taman Warisan, 08000 Guar Cempedak, 04-4686020 04-4687400 

Kedai Tenaga Sik TNB, No. 8-9, Bangunan Inai Pekan Sik, 08200 Sik 04-4695151 04-4695500 

Kedai Tenaga Kulim TNB, Jalan Pondok Labu, 09000 Kulim 04-4906020 04-4905019 

Kedai Tenaga Baling TNB, Bangunan Umno/Wakaf, Jalan Sultan Abdul Halim, 09100 Baling 04-4701021 04-4702025 

Kedai Tenaga Bandar Baru TNB, No. 11, Jalan Bulatan, 34950 Bandar Baru 05-7161713 05-7169745 

PULAU PINANG 

Kedai Tenaga Perda (Bkt. Mertajam) TNB, No. 1, Wisma TNB, Jalan Perda Barat, Bandar Perda,14000 Bukit Mertajam 04-6210800 04-538 6900 

Kedai Tenaga Pulau Pinang TNB, No. 30, Jalan Anson,10400 Pulau Pinang, 04-2224 000 04-2270637 

Kedai Tenaga Pulau Pinang TNB, Lorong Kulit, 10460 Pulau Pinang 04-2260625 04-2279248 

Kedai Tenaga Bandar Bayan Baru, TNB, No. 64 Off Jalan Mahsuri, 11950 Bandar Bayan Baru 04-6427121 04-6421011 

Kedai Tenaga Balik Pulau TNB, Jalan Relau, 11000 Balik Pulau 04-8669191 04-8661624 

Kedai Tenaga Seberang Jaya TNB, No. 3031, Jalan Tenaga, Seberang Jaya, 13700 Perai 04-3820200 04-3903044 

Kedai Tenaga Bukit Mertajam TNB, No. 1899-1902, Taman Sri Mangga, Juru, 14000 Bukit Mertajam 04-5070461 

Kedai Tenaga Bukit Mertajam TNB, No. 14, Jalan Chiku, Taman Chiku, 14000 Bukit Mertajam 04-5305603 

Kedai Tenaga Nibong Tebal TNB, Jalan Nuri, Taman Sentosa, 14300 Nibong Tebal 04-5931606 04-5933070 

Kedai Tenaga Bertam TNB, Aras Bawah, Bgn.Umno, Jalan Bertam, 13200 Kepala Batas 04-5751020 04-5751126 

Kedai Tenaga Nibong Tebal TNB, No. 1310 Jalan Besar, Sungai Bakap, 14200 Nibong Tebal 04-5827820 04-5820617 

72 TENAGA 


Appendix 1 

List of Kedai Tenaga in Semenanjung Malaysia (cont.) 

PERLIS 

Kedai Tenaga Kangar TNB, Bulatan Jubli Emas, 01000 Kangar, Perlis 04-9760021 04-9761921 

PAHANG 

Kedai Tenaga Temerloh TNB, No. 40, Jalan Tengku Ismail, 28000 Temerloh 09-2965020 09-2964020 

Kedai Tenaga Maran TNB, Bandar Baru Maran, 26500 Maran. 09-4771520 09-4771746 

Kedai Tenaga Bentong TNB, Jalan Sri Jaafar, 28709 Bentong 09-2222020/1769 09-2225979 

Kedai Tenaga Raub TNB, Jalan Pekeliling, 27600 Raub. 09-3552020/021 09-3551410 

Kedai Tenaga Kuala Lipis TNB, Jalan Lipis Benta, 27200 Kuala Lipis. 09-3122020 09-3122001 

Kedai Tenaga Pekan TNB, Lot 27, Seksyen 8, Jalan Sultan Ahmad, 26600 Pekan. 09-4221961/2020 09-4221001 

Kedai Tenaga Jerantut TNB, Jalan Dulang, Bandar Baru, 27000 Jerantut. 09-2666146 09-2661887 

Kedai Tenaga Jengka TNB, Jalan Besar, 26400 Pusat Bandar Jengka. 09-4662455 09-4662600 

Kedai Tenaga Muadzam Shah TNB, MM84 & 85, Medan Mewah, 26700 Muadzam Shah. 09-4522275 09- 4522476 

Kedai Tenaga Kuala Rompin TNB, No. 49/51, Jalan Syed Othman, Taman sentosa 26800 Kuala Rompin 09-4145020 09-4145177 

Kedai Tenaga Pulau Tioman TNB, Kg. Tekek, 86800 Pulau Tioman 09-4191224 

Kedai Tenaga Kuantan TNB, Wisma TNB, Lot 14, Seksyen 19, Jalan Gambut, 25150 Kuantan 09-5155688/559/672 09-5155674 

Kedai Tenaga Cameron Highlands 

TNB, No. 64, Persiaran Camelia 3, Juta Villa, 39000 Tanah Rata, Cameron 

Highlands 

TENAGA 


73 

05-4911177 05-4911444 

Kedai Tenaga Gebeng TNB, A5, Jalan Gebeng 2/8, Kawasan Perindustrian Gebeng, 26080 Kuantan. 09-5836021 09-5839028 

Kedai Tenaga Triang TNB, No. 28, Jalan Sri Kerayong 2, Bandar Baru Bera, 28300 Triang 09-2554086 09-2554781 

TERENGGANU 

Kedai Tenaga Kuala Terengganu TNB, Jalan Cherong Lanjut, 20673 Kuala Terengganu 09-6223401 09-6313955 

Kedai Tenaga Kuala Terengganu TNB, Jalan Banggol, 20100 Kuala Terengganu 09-6245592 

Kedai Tenaga Besut TNB, Jalan Tembila, Kg. Raja, 22200 Besut 09-695 6217 09-6956807 

Kedai Tenaga Dungun TNB, Lot 7933 Jalan Baru Pak Sabah, 23000 Dungun 09-8481628 09-8483230 

Kedai Tenaga Kemaman TNB, Jalan Sulaimani, 24000 Kemaman 09-8583300/809 09-8591066 

Kedai Tenaga Kuala Berang TNB, No 7, Taman Tiras, 21700 Kuala Berang 09-6811498/9 09-6811729 

Kedai Tenaga Setiu TNB, Jalan Permaisuri 2, Bandar Permaisuri, 22100 Setiu 09-6099694 09-6099461 

Kedai Tenaga Kerteh TNB, Lot 72 & 73, Bandar Sri Kerteh, 24300 Kerteh, Kemaman. 09-8260400 09-8260403 

Kedai Tenaga Jertih TNB, PT231, Jalan Dato Kamaruddin, 22000 Jertih, Besut. 09-6971581 

Kedai Tenaga AMBS 

TNB, Bangunan Koperasi 3K, Jln. Sultan Zainal Abidin1, Bandar Al-Muktafi 

Billah Shah, 23400 Dungun. 

09-8221426 09-8221475 

Kedai Tenaga Marang TNB, No. 15, KM 2, Jalan Wakaf Tapai, 21600 Marang 09-6182810 09-6182812 

KELANTAN 

Kedai Tenaga Pasir Puteh TNB, Jalan Machang, 16800 Pasir Puteh 09-7867020 09-7866786 

Kedai Tenaga Bachok TNB, PT 147, Jalan Kampong Telok, 16300 Bachok. 09-7789020 09-7789211 

Kedai Tenaga Pasir Mas TNB, Jalan Masjid Lama, 17000 Pasir Mas. 09-7909029 09-7908120 

Kedai Tenaga Tumpat TNB, Jalan Besar, 16200 Tumpat. 09-7256607 09-7256162 

Kedai Tenaga Wakaf Baru No. 9, Wisma MDT, Jalan Puteri Saadong, 16250 Wakaf Baru. 09-7195957 09-7194297 

Kedai Tenaga Kuala Krai TNB, Jalan Tengku Zainal Abidin, 18000 Kuala Krai. 09-9666020 09-9666651 

Kedai Tenaga Gua Musang TNB, Lot 336, Bandar Baru,18300 Gua Musang. 09-9121020 09-9122257 

Kedai Tenaga Machang TNB, Lot 779 & 780, Jalan Bakti, 18500 Machang. 09-9752020 09-9752243 

Kedai Tenaga Tanah Merah TNB, Lot 531, Jalan Pasir Mas, 17500 Tanah Merah. 09-9552040 09-9557024 

Kedai Tenaga Ketereh TNB, PT 175 & 176, Jalan Pasar, 16450 Ketereh. 09-7886020 09-7886231 

Kedai Tenaga Jeli TNB, Jalan Jeli/Dabong, 17600 Jeli. 09-9440180 09-9440010 

Kedai Tenaga Rantau Panjang TNB, Lot PT 193, Pekedaian Baru, Zon Bebas Cukai, 17200 Rantau Panjang 09-7953454 09-7908120 

Kedai Tenaga Kota Bharu TNB, Aras 1, Wisma TNB, Jalan Tok Hakim, 15000 Kota Bharu. 09-7483988 09-7431625

Appendix 2 

FLOWCHART FOR TNB NEW SUPLY APPLICATION PROCESS 

FOR LOAD UP TO 100 KVA 

START 

YES 

Application 

< 3 poles 

NO 

No 

Registration 

Connection 

Charges & 

Deposit 

 

No 

Estimation 

No 

Yes 

Approval 

 

Payment 

 

Yes 

Yes 

Connection 

Charges 

Service Installation 

Meter Installation 

Confirm Estimation 

Payment 

 

Yes 

Yes 

Service Installation 

Deposit Payment 

Issue “Welcome 

Letter” to 

Meter Installation & 

Commissioning 

END 

74 TENAGA 


Appendix 3 

PERMOHONAN BEKALAN ELEKTRIK < 100kVA : 

SENARAI SEMAK PERMOHONAN BEKALAN ELEKTRIK 

No. Pelanggan : ___________________________________ 

Tarikh : ___________ 

Bil. Perkara Baru Tambahan Sementara 

1. Borang Permohonan Elektrik Lengkap 

a) Tandatangan Pemohon 

b) Cop Syarikat 

2 Pelan Tapak 

3 Rajah ‘Skimatik” pepasangan 

4 Pelan susun atur 

5 No Akaun terdekat 

6 No tiang terdekat 

7 Salinan kad pengenalan 

8 Borang G & H yang lengkap 

(bila siap pepasangan) 

9 Lesen Pengilang 

(jika berkaitan) 

Tandatangan Penyemak : 

____________________________ 

TENAGA 


75

Appendix 4 

APPENDIX 4 

1. Permohonan Kelulusan 

Dasar Pembangunan / 

Permohonan Kelulusan 

Tukar Syarat dan Pecah 

Sempadan 

CARTA ALIRAN PROSES KELULUSAN PEMBANGUNAN 

SEMENANJUNG MALAYSIA (KECUALI WILAYAH 

PERSEKUTUAN KUALA LUMPUR DAN PUTRAJAYA) 

Pendekatan I 

PTD / PTG 

(1) (A) 

PermohonanKelulusan Dasar Tukar Syarat 

Kelulusan Dasar Pembangunan 

Oleh MMKN (17 minggu) 

(tidak termasuk peringkat 

Kelulusan Lembaga Tanah Ladang) 

Ulasan / Perakuan 

Jabatan Pertanian 

JPBD 

JPS 

JPP 

PBAN 

PBAN 

TNB 

TM 

PBPT 

JKR 

Jabatan Penilaian 

Jika perlu: Jab. Mineral & 

Geosains, JAS, Jabatan 

Penerbangan Awam dll. 

Diberi 

Tempoh 

30 hari 

(1) (B) 

Kelulusan Muktamad Tukar Syarat dan 

Pecah Sempadan (9 hingga 10 minggu) 

Perakuan 

JPBD - 21 hari 

PBT - 30 hari 


Pendekatan II 

Tukar Syarat dan pecah Sempadan 

(22 minggu) 

Jabatan Pertanian 

JPBD 

JPS 

JPP 

PBAN 

PBAN 

TNB 

TM 

PBPT 

JKR 

Jabatan Penilaian 

Jika perlu: Jab. Mineral & 

Geosains, JAS, Jabatan 

Penerbangan Awam dll. 

Diberi 

Tempoh 

30 hari 

2. Permohonan 

Kebenaran Merancang 

3. Permohonan Lesen 

Pemaju 

4. Permohonan Kelulusan 

Pelan bangunan 

5. Permohonan Permit Iklan 

dan Jualan 

6. Permohonan Kelulusan Sijil Kelayakan Menduduki 

Petunjuk : 

Akta 118 - Akta Pemaju Perumahan 

(Kawalan & Perlesenan) 1966 

Akta 133 - Akta Jalan, Parit dan Bangunan 1974 

KPKT 

Akta 172 - Akta Perancangan Bandar & Desa 1976 

BPKN - Bahagian Perlesenan & Khidmat Nasihat 

Kementerian Perumahan & Kerajaan 

Tempatan 

KPKT - Kementerian Perumahan & Kerajaan 

Tempatan 

KTN - Kanun Tanah Negara 1965 

MMKN - Mesyuarat Majlis Kerajaan Negeri 

PBAN - Pihak Berkuasa Air Negeri 

PBT - Pihak Berkuasa Tempatan 

PBPT - Pihak Berkuasa Perancang Temapatan 

(termasuk PBT, SEDC Lemabga 

Kemajuan Wilayah, Pegawai Daerah dll) 

UKBS - Undang-Undang Kecil Bangunan 

Seragam 1984 

UUK - Undang-Undang Kecil 

(2) 

Kebenaran Merancang Sek. 21(1) Akta 

172 

Dilulus Oleh Majlis PBPT (12 minggu) 

(3) 

Lesen Pemaju 

Perumahan 

(Sek.5, Akta 118) 

Dilulus Oleh Pegawal 

(5) 

Permit Iklan Dan 

Jualan 

(Per. 5 Peraturan- 

Peraturan 

Pemaju Perumahan, 

Kawalan & 

Pelesenan, 

1989) Dilulus oleh 

Pengawal Perumahan 

(4 minggu) 

PBT 

PBT 

(4) 

Kelulusan Pelan 

Bangunan 

(Seksyen 70 Akta 

133 

Dilulus Oleh Majlis 

Penuh PBT (12 

minggu) 

(6) 

Sijil Kelayakan 

Menduduki (CFO) 

(UUK 25 UKBS) 

Atau 

Sijil Kelayan 

Menduduki 

Sementara (TCFO) 

(UUK 26 UKBS) 

Sijil Ke Kelayakan 

Menduduki 

Sebahagian 

(UUK 27 UKBS) 

Dilulus oleh PBT – 

2 minggu 

76 TENAGA 



JPBD - 24 hari 

JPP - 30 hari 

JAS - 90 hari (ElA) 

- 21 hari (lain) 

JKR - 30 hari 

PBAN - 30 hari 

JPS - 30 hari 

TNB - 30 hari 

TM - 30 hari 

Lain-lain (jika perlu) 

Perakuan (Urusan Pemohon) 

JPP - 30 hari 

JBPM - 30 hari 

JKR - 30 hari 

JPS - 21 hari 

TNB - 30 hari 

TM - 30 hari 


PBT (Dalaman) - 21 hari 


-Jab. Penerbangan Awam 

-LLM 

-KTM 

Perakuan (Urusan Pemohon) 

JPP - 14 hari 

JBPM - 30 hari 

JKR - 30 hari 

JPS - 21 hari 

TNB - 14 hari 

TM - 30 hari 


PBT (dalaman) - 21 hari 


Architect Certification of Completion / 

dikeluarkan Untuk tujuan penyerahan 

Pemilikan kosong

Appendix 5 

TENAGA 


77

Appendix 6 

ELECTRICITY SUPPLY APPLICATION EXCEEDING 100 kVA 

CONSULTANT ENGINEER CHECKLIST 

No. Form / Document Information Required 

1 Summary of Load Data 

(A) Basic Information 

Address of Installation 

Name & Address of Architect 

Name & Address of Surveyor 

Name & Address of Owner/Developer 

Name & Address of Consultant Engineer 

Name & Address of Electrical Contractor 

Type of Premise 

Voltage Level (HV or LV) 

Total Load required (kW) 

Date Supply Required 

Plans & Drawings 

i. Master Development/Layout Plan 

ii. Site Plan/Proposed Sub-station Sites 

iii. Layout Plan of Sub-station Building 

iv. Layout Plan of Main Switch-room 

v. Single Line Diagram/Schematic of Installation 

vi. Diskette for all the above plans 

(B) Load Details 

(C) Motor Loads 

(D) Harmonic Spectrum 

(E) Fluctuating Loads 

(F) Tolerence Limits 

(G) Capacitor Bank Installation 

(H) Load Profile & Consumption 

(I) Load Details for Mixed Development 

2 Substation Land Consent from land owner for leasing sub-station lot 

3. Metering Preliminary metering information sheet 

78 TENAGA 


Appendix 7 

PART B : TNB SUPPLY APPLICATION PROCESS FOR LOAD EXCEEDING 

100 kVA FLOW CHART 

3 

TENAGA 


79

Appendix 8 

Kepada : Tarikh : 

Jurutera Perunding ……………………………………………… Rujukan : 

…………………………………………………………………….. 

…………………………………………………………………….. 

PERAKUAN PENERIMAAN BAGI PERMOHONAN BEKALAN ELEKTRIK KE : 

Sukacita dimaklumkan kepada pihak tuan bahawa permohonan bekalan di atas telah didaftarkan di pejabat kami 

dengan nombor rujukan di atas. Sila pihak tuan gunakan nombor rujukan ini dalam urusan permohonan bekalan 

dengan pihak kami. 

Pihak kami mendapati* : 

_____________________________________________________________ 

1. Dokumen yang diperlukan bagi memproses permohonan ini telah lengkap. Oleh yang demikian, tuan adalah 

dijemput untuk menghadiri satu sesi perbincangan bersama dengan TNB pada tarikh dan waktu yang ditetapkan 

seperti berikut : 

Tarikh 

Masa 

: …………………………………… 

: …………………………………… 

Tempat : …………………………………… 

______________________________________________________________ 

2. Dokumen yang diperlukan bagi memproses permohonan ini adalah masih belum mencukupi. Sila pihak tuan hantarkan 

dokumen-dokumen yang belum diterima oleh pihak kami iaitu yang tidak bertanda √ di Senarai Semak di sebelah 

dengan segera kepada pihak kami. Kami akan mengaturkan sesi perbincangan dengan pihak tuan sebaik sahaja semua 

dokumen lengkap telah diperolehi. 

______________________________________________________________ 

Sila pihak tuan maklum bahawa pegawai kami yang bertanggungjawab menguruskan permohonan bekalan tuan ini 

ialah Encik/Cik/Puan/……………………………………………... dan beliau boleh dihubungi di talian …………………………. 

sambungan ………………….. 

Kami di TNB mengalu-alukan kesudian pihak tuan berurusan dengan kami. Dengan kerjasama ini, kami berharap 

agar dapat memberikan bekalan pada masa yang ditetapkan dan seterusnya meningkatkan mutu perkhidmatan 

kami kepada pengguna. 

Sekian, terima kasih. 

“TNB Penggerak Kemajuan Negara” 

Pengurus Kawasan 

COP PK 

s.k. Pemohon 

80 TENAGA 


Appendix 9 

JOINT MEETING ACTION LOG (FOR SUPPLY APPLICATION > 100 kVA) 

To be filled in during joint Meeting 

DEVELOPER COMPANY : ___________________________ 

CONSULTANT COMPANY : __________________________ 

CONSULTANT ENGINEER CONTACT PERSON NAME : ________________ 

CONSULTANT ENGINEER CONTACT NUMBER : ____________________ 

MEETING 

DATE: 

MEETING 

DATE: 

PROJECT NO. 

PROJECT 

DESCRIPTION 

DATE APPLIED: 

ORIGINAL SUPPLY 

REQUEST DATE: 

REMARKS (OR TICK) RESPONSIBILITY (TICK ONLY) TARGET DATE 

Tech Item PK CONSULTANT PLAN OTHERS INITIAL REVISED 

1 Load Detail (Total Connected 

Load) (kVA) 

2. Load Applied MD 

(kW or A) 

3. Schematic 

Drawing (whole scheme) 

4. Location Plan 

5. Site Plan (Tapak) 

6. Key Plan 

7. HV & LV Cable Route 

& F/Pillar location 

8. Borang A for Substation 

9. Substation Design 

(if defers from TNB std) 

10. Trenches details 

(if defers from TNB std) 

11. Road Accessibility 

(8wks before work 

commence by TNB) 

12. Switch Room/MSB/ 

Genset Location 

13. Tariff 

14. Metering Details 

CT sizes – Etc 

Tech Item: 

1. Customer Project Schedule 

2. Commitment Letter (if required) 

3. Deposit /Bank Guarantee 

(for P/E) 

Other Comment/issues Related To Project 

FILLED BY TNB PLANNER IN THE FINAL JOINT MEETING 

Date Planning Clock Starts 

Revised Supply Request 

Date (base on project timeline) 

………………………. ……………………… …………………… 

Pengurus Kawasan Consultant Planner Engineer 

TENAGA 


81

Appendix 10 

Rujukan Kami : 

Rujukan Tuan : 

Tarikh 

Jurutera Perunding 

_________________________ 

Pemaju 

_________________________ 

 

TAJUK PROJEK : SLA 

NO. PROJEK: 

CAS SAMBUNGAN PENGGUNA 

Sukacita dimaklumkan, bahawa jumlah Cas Sambungan untuk pembangunan di atas yang perlu dijelaskan oleh pihak 

tuan adalah seperti di bawah: 

Bil 

Bayaran Cas Sambungan = RMXXX,XXX.XX 

Dengan perkataan : Ringgit Malaysia “XXX” 

Perkara 

1 Cas Beban 

Cas Kabel 

2 

Jumlah kabel melebihi 6 km (jika ada) 

3 Cas “Special Features” (jika ada) 

4 Jumlah keseluruhan 

Bil Bangunan 

/Jumlah kabel 

Jumlah seunit/km 

Jumlah 

Nota:Maklumat terperinci bagi perkara () dan () pada jadual di atas adalah seperti pada lampiran yang dikepilkan 

bersama dengan surat ini. 

2. Pembayaran Cas Sambungan ini hendaklah dibuat dengan segera bagi memastikan bekalan elektrik dapat disalurkan 

kepada pihak tuan. Cek hendaklah dipalang “Akaun Penerima Sahaja” dan dibayar di atas nama “Tenaga Nasionl 

Berhad”. 

3. Kerja-kerja bekalan elektrik akan dimulakan selepas Cas Sambungan Pengguna telah dijelaskan. Walau bagaimanapun, 

pemberian bekalan elektrik adalah tertakluk juga kepada perkara-perkara berikut: 

1.1 Penyerahan pencawang elektrik 

1.2 Keadaan tapak yang membolehkan kerja-kerja TNB dijalankan. 

1.3 Jaminan bank bagi tapak pencawang diserahkan. 

4. Jumlah cas sambungan ini adalah dikira berdasarkan Kenyataan Cas Sambungan yang diluluskan oleh Kementerian 

Tenaga, Air dan Komunikasi, mengikut jenis beban pengguna (tariff jangka), punca bekalan yang di ambil, skim bekalan 

yang dipilih (Special Features) dan kehendak-kehendak Majlis Tempatan. Oleh yang demikian jumlah Cas Sambungan 

yang dinyatakan ini adalah tertakluk kepada perubahan semasa.Tempoh sahlaku surat cas sambungan ini adalah 

selama 8 bulan dari tarikh surat ini. 

5. Selaras dengan Service Level Agreement di antara pihak TNB dengan pihak tuan, pihak tuan perlulah menjelas 

bayaran cas sambungan dalam tempoh lapan (8) bulan dari tarikh surat ini. 

Sekian, terima kasih. 

“TNB PENGGERAK KEMAJUAN NEGARA” 

(Nama) 

(Jawatan) 

82 TENAGA 


Appendix 11 

SAMPLE OF APPOINTMENT LETTER OF CONSULTANT ENGINEER 

Applicant’s Letterhead (if available) consisting applicant’s name and address 

____________________________________________________________________________________________ 

Rujukan : 

Tarikh : 

Kepada : 

Pengurus Besar Negeri (Selangor) 

Bahagian Pembahagian TNB 

Persiaran Damai, Seksyen 11 

40000 Shah Alam 

Selangor. 

SURAT PERLANTIKAN SYARIKAT JURUTERA PERUNDING …………………………………….… 

SEBAGAI PERUNDING BAGI MENGURUSKAN PERMOHONAN BEKALAN ELEKTRIK KE 

…………………………………………… 

_______________________________________________________________________________________ 

Dengan ini kami mengesahkan pelantikan syarikat perunding di atas sebagai perunding rasmi yang akan menguruskan 

proses permohonan bekalan elektrik ke premis / tapak pembangunan di atas dengan pihak TNB. 

Sekian, harap maklum. 

Yang Benar, 

……………………………………………. 

(Name of Applicant) 

Office Stamp 

s.k. Jurutera Perunding 

TENAGA 


83

Appendix 12 

1 Address of installation 

2 Site Location (Lot & Mk No.) 

3 Single-tenancy or multi-tenanted premise 

4 Type of Premise 

5 Total Gross Built-in Floor Area 

6 Total Land Area 

7 Name of Architect 

Address 

Telephone no. 

Fax no 

E-mail Address 

8 Name of Surveyor 

Address 

Telephone no. 

Fax no 


9 Name of Owner/Developer 

Address 

Telephone no. 

Fax no 


10 Name of Consultant Engineer 

Address 

Telephone no 

Fax no 


11 Name of Electrical Contractor 

Address 

Telephone no 

Fax no 


12 Requirements for temporary supply 

A. Basic Information 

MD (kW) : Date supply required : 

Voltage (V) : 

13 Date supply required (ORIGINAL) MD (kW) : Date supply required : 

14 Date supply required (FINAL) MD (kW) : Date supply required : 

15 PLANS* CERTIFIED BY PROFESSIONAL ENGINEER 

3 SETS : (Please specify plan no & date below) 

15a 

15b 

15c 

15d 

15e 

Master Development/Layout Plan 

(Pelan Induk Lokasi & Lot Pembangunan Tanah) 

approved by JPB&D Plan No. : Date : 

Site Plan/Proposed Sub-station Sites 

(Pelan Lokasi & Cadangan Tapak Pencawang 

Elektrik Fasa) Plan No. : Date : 

Layout Plan of Sub-station Building 

(Stand-Alone / Compartment) 

Pelan SusunAtur (Layout) Bangunan Pencawang Plan No. : Date : 

Layout Plan of Main Switch Rooms 

(Pelan Bilik Suis & Skematik Papan Suis Pengguna) Plan No. : Date : 

Single Line Diagram/Schematic of Installation 

 

SUMMARY OF LOAD DATA FOR DEMAND EXCEEDING 100 KVA (~140A) 

(Pelan Skematik Pepasangan) Plan No. : Date : 

* NOTES : 

(i) The Master Development/Layout Plans (15a) are approved by Local Authority/Jabatan Perancang Bandar & Desa/Jabatan Tanah & Galian. 

These Plans should already contain TNB preliminary comments on sub-station and right of way/wayleave requirement, as the case may be. 

(ii) The Site Plans/Proposed Sub-stations Sites (15b) indicate the locations of sub-station sites for the overall development area. 

(iii) The Layout Plans of sub-station building (15c) must show the cable entry locations, trenching and ducting details according to TNB specifications. 

(iv) Layout Plan of Main Switch-room (15d) must indicate the location of MSB, trenching/ducting details for cable entry. 

(v) The Wiring Diagrams should indicate incoming switches, metering location and devices, protection schemes and devices, bus-bar and switchegear rating. 

(vi) All drawings and plans are to be submitted in three (3) complete sets. Soft copies in ACAD are also preferable. 

84 TENAGA 


Appendix 12 

Load Category 

Total lighting points and load 

(kW) 

Total air-conditioning points and 

load (kW) 

Total motor nos. and loads - 

Single phase 

- Three phase 

Other special loads (arc welding, 

arc furnace & others) 

1. 

2. 

3. 

4. 

5. 

Total load (kW) 

- Maximum 

Total (kW) 

- Minimum 

B. Load Details 

Connected Load Information 

Nos. kVA Power Factor kW 

* Minimum values nee to be specified for customer taking supply at above 6.6kV 

Load after Diversity kW @ 

diversity factor 

C. Details on Motor Loads 

Motor Size 

Type of control 

equipment 

Sub-transient 

Reactance/ 

Locked Rotor 

Reactance 

Starting 

Current 

(Amps) 

Starting 

Frequency 

(nos/hour) 

Power Factor 

Under voltage 

setting 

D. The availability of harmonic spectrum and submission status to TNB for all harmonic generating 

equipment to be summarized in table below:- 

Non-linear 

load 

Availability of harmonic spectrum 

(Yes or No) 

Submission Status 

(Yes or No) 

TENAGA 


85

Appendix 12 

Type of Fluctuating 

Load 

E. Details On Fluctuating Lo ads To Be Specified In Table Below:- 

Rate Of Changes For kW And 

kVAr per Minute 

kW/min kVAr/min 

Shortest repetitive time 

interval between kW & kVAr 

fluctuations in minutes 

The largest step changes 

in kW and kVAr 

F. Tolerence Limits For All Voltage Sensitive Equipment To Be Provided In The Table Below:- 

Voltage Sensitive Loads 

Steady-state tolerence limits 

as % of nominal voltage 

(maximum & minimum) 

Transient voltage tolerence 

limits of equipment as % 

of nominal voltage and 

corresponding duration 

% Time (ms) 

Harmonic voltage 

distortion tolerence limits 

as % of total harmonic 

and individual harmonic 

distortion 

Type of connection 

No. of bank 

kVAr/bank 

Total kVAr 

Type of control 

equipment 

G. Capacitor bank installation:- 

Star / Delta 

Monthly Peak MD (kW) 

H. Load profile and consumption data, if relevant:- 

Monthly Consumption 

Load Factor 

(hours/month) 

Estimated monthly consumption 

(kWh) 

Submitted by : 

(Signature of Electrical Consultant) 

I. Load details for mixed development:-* 

Date : 

* Kindly use the format as in APPENDIX 13 

86 TENAGA 


Appendix 13 

LOCATION PLAN 

TENAGA 


87

Appendix 14 

BORANG PERAKUAN PAJAKAN/PINDAHMILIK TANAH PENCAWANG 

Nota: 

• Borang ini digunakan untuk tapak pencawang elektrik yang diperlukan atas permintaan pengguna/pemaju 

sahaja. 

• Salinan hakmilik tanah disertakan. 

A. Tajuk projek: 

B. Butir-butir Pemilik / Permohon / Pemaju : 

B1. Nama pemilik : ________________________________________________________ 

B2. No. Kad Pengenalan : ________________________________________________________ 

B3. Alamat : ________________________________________________________ 

B4. Nama dan No. 

Pendaftaran Syarikat/ 

Perniagaan 

*pemohon/pemaju : 

________________________________________________________ 

________________________________________________________ 

B5. Alamat : ________________________________________________________ 

B6. Nama Perunding : _______________________________________________________ 

B7. Alamat : ________________________________________________________ 

C. Butir-butir Tanah untuk pembinaan pencawang elektrik 

C1. No Suratan Hakmilik: ________________________________________________________ 

C2. No: Lot: _______________________________________________________ 

C3. Mukim/Daerah: _______________________________________________________ 

C4. Negeri _______________________________________________________ 

C5. Keluasan Lot: _______________________________________________________ 

C6. Luas tapak pencawang 

yang diperlukan TNB: 

________________________________________________________ 

88 TENAGA 


Aku Janji dan Tanggungrugi *Pemilik/Pemaju 

Appendix 14 

Sebagai balasan kepada Tenaga Nasional Berhad (No. 20066-W) (‘TNB’) kerana penyediaan kelengkapan bagi tujuan 

pemberian bekalan elektrik, saya/kami ________________________________ sesungguhnya bersetuju dan berakujanji 

seperti berikut: 

a. Untuk memajakan tanah tapak pencawang diatas kepada TNB selama 30 tahun dengan bayaran sebanyak RM 10.00 

sahaja dengan pilihan bagi TNB untuk membaharui pajakan itu selama 30 tahun lagi dengan terma dan syarat yang 

sama. 

ATAU 

b. Untuk memindahmilik tanah tapak pencawang diatas kepada TNB dengan bayaran nominal sebanyak RM10.00 

sahaja. 

ATAU 

c. Untuk membiayai semua kos dan perbelanjaan bagi membolehkan TNB memperolehi tapak tanah pencawang 

elektrik atau pajakan tanah selama 30 tahun dengan pilihan untuk memperbaharui pajakan selama 30 tahun dengan 

terma dan syarat yang sama bagi tanah yang tidak dimiliki oleh saya/kami serta telah memperolehi kebenaran 

pindahmilik tanah/pajakan kepada TNB atau telah diberi kuasa oleh (nama pemilik) melalui surat kuasa wakil 

bertarikh _________ dan dilampirkan bersama-sama ini.. 

Sekiranya saya/kami memerlukan bekalan elektrik dengan segera (iaitu sebelum urusan pajakan/pindahmilik tanah 

tapak pencawang selesai dilaksanakan), pihak saya/kami bersetuju mengadakan satu Jaminan Bank bernilai RM 20,000( 

Ringgit: Dua Puluh Ribu Sahaja) atas nama TNB dan saya/kami bersetuju membaharui Jaminan Bank itu sehingga tanah 

di pajak atau dipindahmilik kepada TNB. 

Sekiranya berlaku kemungkiran dari pihak saya/kami dalam mana-mana akujanji seperti yang telah ditetapkan yang 

mana akibat dari itu TNB telah menanggung apa-apa kerugian, kehilangan, menanggung apa-apa perbelanjaan, tindakan 

mahkamah, saya/kami akan menanggung rugi atau apa-apa perbelanjaan termasuk kos dan yuran guaman pihak TNB. 

Akujanji ini mengikat pewaris, wasi, pentadbir, pengganti hakmilik dan wakil-wakil yang dilantik oleh pihak saya/ 

kami. 

Klausa-klausa di dalam akujanji ini adalah berasingan dan berbeza diantara satu sama lain dan pada bila-bila masa 

sekiranya terdapat salah satu atau lebih daripada klausa-klausa tersebut menjadi tidak sah dari segi undang-undang, 

maka ketidaksahan tersebut tidak akan sama sekali memberi kesan kepada klausa-klausa yang lain. 

Akujanji ini telah dilaksanakan pada tarikh __________________ tahun ________. 

__________________________________ 

(Tandatangan Pemilik/Pemaju) 

Nama : ________________________________ 

No. Kad Pengenalan : ___________________ 

Jawatan : ______________________________ 

Disaksikan oleh: 

Nama : _________________________________ 

No. Kad Pengenalan : _____________________ 

Jawatan : ______________________________ 

* Potong mana-mana yang tidak berkaitan 

TENAGA 


89

Appendix 15 

90 TENAGA 


Appendix 16 

Demand forecast and sub-station capacity for LV system 

No Year 

Annual Maximum 

Growth Demand(kVA) 

1 0 2.00% 2000 

2 1 3.00% 2060.00 

3 2 3.00% 2121.80 

4 3 3.00% 2185.45 

5 4 3.00% 2251.02 

6 5 3.00% 2318.55 

7 6 2.00% 2364.92 

8 7 2.00% 2412.22 

9 8 2.00% 2460.46 

10 9 2.00% 2509.67 

11 10 2.00% 2559.86 

12 11 1.00% 2585.46 

13 12 1.00% 2611.32 

14 13 1.00% 2637.43 

15 14 1.00% 2663.81 

Remark 

Nos. of sub-station required and transformer sizes 

Year 

M.D (kVA) 

Transformer 

Loading (%) 

Transformer Sizes/Number of sub-stations 

500 750 

0 2000 60 6.67 4.44 

2 2060.00 65 6.34 4.23 

5 2251.02 70 6.43 4.29 

10 2509.67 75 6.69 4.46 

15 2663.81 80 6.66 4.44 

No. of sub-stations= M.D/( Tx size x % loading/100) 

No. of s/stns required = 4 (for a 1000 kVA Tx size) 

Year 

Maximum 

Demand (kVA) 

Feeder % 

Loading 

185mm2 Al 

XLPE 4-C 

230kVA @ 

320A,0.415kV 

Feeder Capacity (kVA)/No. of feeders 

185mm2 Cu 

XLPE 4-C 

337kVA@ 

470A,0.415kV 

300mm2 A1 

XLPE 4-C 

294kVA @ 

410A, 0.415 kV 

300mm2 Cu 

XLPE 4-C 

431kVA @ 

600A, 0.415kV 

0 2000 40 21.74 14.84 17.01 11.60 

2 2060 50 17.91 12.23 14.01 9.56 

5 2251 60 16.31 11.13 12.76 8.70 

10 2509 70 15.58 10.64 12.19 8.32 

15 2663 70 16.54 11.29 12.94 8.83 

No. of feeders = Max. Demand/( feeder capacity x % loading/100) 

TENAGA 


91

Appendix 17 

SITE PLAN / LOCATION PLAN AND LAYOUT PLAN 

92 TENAGA 


Appendix 17 

SUBSTATION LAYOUT DRAWING OF SINGLE CHAMBER 

TENAGA 


93

Appendix 17 

LOGO DETAILS OF SINGLE CHAMBER 

94 TENAGA 


Appendix 18 

SITE PLAN / LOCATION PLAN AND LAYOUT PLAN 

TENAGA 


95

Appendix 18 

SUBSTATION LAYOUT DRAWING FOR DOUBLE CHAMBER 

96 TENAGA 


Appendix 18 

LOGO DETAIL FOR DOUBLE CHAMBER 

TENAGA 


97

Appendix 19 (Drawing 7A) 

MV/HV, 1 OR 2 FEEDER METERING KIOSK - Front View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) 

Drawing 7A 

98 TENAGA 


Appendix 19 (Drawing 7B) 

MV/HV, 1 OR 2 FEEDER METERING KIOSK - Rear View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7B November 2006 

TENAGA 


99

Appendix 19 

MV/HV, 1 OR 2 FEEDER METERING KIOSK - Base View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7C November 2006 

100 TENAGA 


Appendix 19 (Drawing 7D) 

3 FEEDER METERING KIOSK - Front View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7D November 2006 

TENAGA 


101

Appendix 19 (Drawing 7E) 

MV/HV, 3 FEEDER METERING KIOSK - Rear View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7E November 2006 

102 TENAGA 


Appendix 19 (Drawing 7F) 

MV/HV, 3 Feeder Base 

Frame: 

Top View 

MV/HV, 3 FEEDER METERING KIOSK - Base Frame 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7F November 2006 

TENAGA 


103

Appendix 19 (Drawing 7G) 

MV/HV, 1, 2 OR 3 FEEDER METERING KIOSK - Side View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7G November 2006 

104 TENAGA 


Appendix 19 (Drawing 7H) 

1, 2, 3 OR 4 FEEDER METER TEST BOX - To be placed inside Metering Kiosk 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7H November 2006 

TENAGA 


105

Appendix 19 (Drawing 7I) 

MV/HV, 1, 2, 3 OR 4 FEEDER METER TEST BOX - Front View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7I November 2006 

106 TENAGA 


Appendix 19 (Drawing 7J) 

1, 2, 3 OR 4 FEEDER METER TEST BOX - Rear View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7J November 2006 

TENAGA 


107

Appendix 19 (Drawing 7K & 7L) 

MV/HV 1, 2, 3 OR 4 FEEDER METER TEST BOX - Side View & Top View 

PERKHIDMATAN PERJANGKAAN (PERJANGKAAN BESAR) Drawing 7K & 7L November 2006 

108 TENAGA 


Appendix 20 

TENAGA 


109

Appendix 21 

DRAWING NO 1 : SINGLE PHASE METER BOARD 

110 TENAGA 


Appendix 22 

DRAWING NO 2A : SINGLE PHASE METERING ARRANGEMENT 

TENAGA 


111

Appendix 22 

DRAWING NO 2B : SINGLE PHASE METERING ARRANGEMENT. 

112 TENAGA 


Appendix 23 

DRAWING NO 3A : OUTDOOR METERING PANEL 

TENAGA 


113

Appendix 24 

DRAWING NO 3B : POLE MOUNTED SINGLE PHASE METERING PANEL 

114 TENAGA 


Appendix 25 

DRAWING NO 4A : 3 PHASE OVERHEAD INCOMING. 

TENAGA 


115

Appendix 25 

DRAWING NO 4B : 3 PHASE OVERHEAD INCOMING. 

116 TENAGA 


Appendix 25 

DRAWING NO 4C : 3 PHASE UNDERGROUND INCOMING. 

TENAGA 


117

Appendix 26 

DRAWING NO. 4D: EXTERNAL SURFACE WIRING 

118 TENAGA 


Appendix 26 

DRAWING NO. 4E 

TENAGA 


119

Appendix 26 

DRAWING NO. 4F 

120 TENAGA 


Appendix 27 

DRAWING NO 5A : SINGLE PHASE GROUP METERING 

TENAGA 


121

Appendix 27 

DRAWING NO 5B: SINGLE PHASE GROUP METERING 

122 TENAGA 


Appendix 27 

DRAWING NO 5C : SINGLE PHASE GROUP METERING 

1030mm 

TENAGA 


123

Appendix 28 

DRAWING NO 5D: 3 PHASE GROUP METERING 

124 TENAGA 


Appendix 28 

DRAWING NO 5E: 3 PHASE GROUP METERING 

TENAGA 


125

Appendix 28 

DRAWING NO 5F: 3 PHASE GROUP METERING. 

126 TENAGA 


Appendix 29 

TENAGA 


127

Publishedby: 

DistributionDivision 

TenagaNasionalBerhad 

Website:http://www.tnb.com.my 

ElectricitySupplyApplicationHandbook 

SecondEditionMarch2007

Tenaga Nasional Berhad

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?