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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 NASIONAL B E R H A D 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 NASIONAL B E R H A D
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Vision To be among the leading c
Page 4 and 5: CONTENTS SUPPLY APPLICATION 1.0 Ten
Page 6 and 7: 1.0 TENAGA NASIONAL BERHAD ELECTRIC
Page 8 and 9: e) Elektrik Bestari TNB provides el
Page 10 and 11: 1.10 Types Of Supply Application Al
Page 12 and 13: 1.18 Tariff Please refer to the Tar
Page 14 and 15: 2.4 TNB Supply Lead Time The flowch
Page 16 and 17: Stage Description 2 TNB Register Ap
Page 18 and 19: Steps Action Reference 2 After appr
Page 20 and 21: Steps 7 8 Action Advise applicant t
Page 22 and 23: CONTENTS Page 1.0 PLANNING FOR C
Page 24 and 25: 1.1.1.1 Technical Requirements For
Page 26 and 27: Should a preliminary examination of
Page 28 and 29: • Capacitance connected in parall
Page 30 and 31: SECTION 2.0 PLANNING AND DESIGN CRI
Page 32 and 33: For the purpose of this guideline,
Page 34 and 35: Table 2.3.4.1: Voltage limits on sw
Page 36 and 37: 2.3.5.6 If under the operating cond
Page 38 and 39: Table X: Planning Levels for Harmon
Page 40 and 41: 3) At the terminals of a Customer
Page 42 and 43: 2.5.3 Protection System Evaluation
Page 44 and 45: 3.2 Group Diversity Group diversity
Page 46 and 47: - 132/33kV, 2 x 90 MVA - 132/22kV,
Page 48 and 49: The establishment of transmission m
Page 50 and 51: CONTENTS Page ABBREVIATIONS .......
Page 52 and 53: 1.0 GENERAL REQUIREMENTS 1.1 All th
Page 56 and 57: 4.0 GROUP METERING FOR WHOLE CURREN
Page 58 and 59: v. The panel cover and metal plate
Page 60 and 61: 6.2 Specifications For Metering PTs
Page 62 and 63: 6.7.2 Outdoor Breakers A ‘marshal
Page 64 and 65: GLOSSARY AND DEFINITIONS In this gu
Page 66 and 67: Embedded Generating Unit A generati
Page 68 and 69: Protection Protection Apparatus Pro
Page 70 and 71: Appendix Topic Page 1 List of Kedai
Page 72 and 73: Appendix 1 List of Kedai Tenaga in
Page 74 and 75: Appendix 1 List of Kedai Tenaga in
Page 76 and 77: Appendix 3 PERMOHONAN BEKALAN ELEKT
Page 78 and 79: Appendix 5 TENAGA NASIONAL B E R H
Page 80 and 81: Appendix 7 PART B : TNB SUPPLY APPL
Page 82 and 83: Appendix 9 JOINT MEETING ACTION LOG
Page 84 and 85: Appendix 11 SAMPLE OF APPOINTMENT L
Page 86 and 87: Appendix 12 Load Category Total lig
Page 88 and 89: Appendix 13 LOCATION PLAN TENAGA NA
Page 90 and 91: Aku Janji dan Tanggungrugi *Pemilik
Page 92 and 93: Appendix 16 Demand forecast and sub
Page 94 and 95: Appendix 17 SUBSTATION LAYOUT DRAWI
Page 96 and 97: Appendix 18 SITE PLAN / LOCATION PL
Page 98 and 99: Appendix 18 LOGO DETAIL FOR DOUBLE
Page 100 and 101: Appendix 19 (Drawing 7B) MV/HV, 1 O
Page 102 and 103: Appendix 19 (Drawing 7D) 3 FEEDER M
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Appendix 19 (Drawing 7F) MV/HV, 3 F
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Appendix 19 (Drawing 7H) 1, 2, 3 OR
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Appendix 19 (Drawing 7J) 1, 2, 3 OR
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Appendix 20 TENAGA NASIONAL B E R H
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Appendix 22 DRAWING NO 2A : SINGLE
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Appendix 23 DRAWING NO 3A : OUTDOOR
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Appendix 25 DRAWING NO 4A : 3 PHASE
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Appendix 25 DRAWING NO 4C : 3 PHASE
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Appendix 26 DRAWING NO. 4E TENAGA N
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Appendix 27 DRAWING NO 5A : SINGLE
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Appendix 27 DRAWING NO 5C : SINGLE
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Appendix 28 DRAWING NO 5E: 3 PHASE
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Appendix 29 TENAGA NASIONAL B E R H
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