ESAH 2nd Edition – Addendum No. 2 Addendum on Chapter 4.1 ...

<strong>Addendum</strong> on Chapter 4.2.2 on Land or Building Size Requirements forSub station has been revised to the current practice.Table 4-2 : Land and building size requirements for sub-stationsSubstationCategoryTransmission MainIntake/PencawangMasuk Utama (PMU):(a)132/33/11kV(a) 132/33/11kV(with capacitorbank)Transmission MainIntake/PencawangMasuk Utama (PMU):(a) 132/33/11kV(b) 132/33/11kV(with capacitorbank)Main DistributionSubstation (PPU)(a) 33/11kV(b) 22/11kVMain SwitchingSubstation (SSU)(a) 33kV(b) 22kV(phasing outto 33kV)Main SwitchingSubstation (SSU)11kVDistribution Substation(P/E)(a) 11/.415kV(b) 22/.415kVLand Size (AverageDimensions <strong>–</strong> NOTType inclusive of LandSet-backRequirements)Gas InsulatedSwitchgear(GIS) Withoutoutdoorswitchyard (a) 60.0m x 80.0m(b) 140 m x 75mAir InsulatedSwitchgear(AIS) Withoutdoorswitchyard(a)130.m x 130.0m(b) 160 m x 150 mIndoor type 46.0m x 46.0mIndoor 30.0m x 30.0mConventional <strong>–</strong>Stand aloneConventional <strong>–</strong>Stand alone(a)Singlechamber(b) DoublechamberSubject to land setbackrequirementsSubject to land setbackrequirementsSubject to land setbackrequirementsBuilding Size(AverageDimensions)Customized designto match land sizebuilding bylawsCustomized designto match land sizebuilding bylawsCustomized designto match land sizebuilding bylawsCustomized designto match land sizebuilding bylawsRefer to “BukuPanduan PiawaiBaru RekabentukPencawang Elektrik11kV dan 11/0.4kV(Jenis Bangunan) DiBahagianPembahagian, TNB”(c) Compactsubstation7.0m x 4.0m 3.0m x 2.0m

<strong>No</strong>te: Set-back requirement (subject to respective local authority‟s latest requirement) :(a) JKR : On all Federal and State Routes: 20.1m (66ft) from center of road + 15.0m(50ft) for service road to substation site.(b) Local Authority/City Council/Jabatan Perancang Bandar : 6.1m (20ft) for buildingline + other requirements as requisitioned by Local Authority/CityCouncil/Jabatan Perancang Bandar.(c) LLM (Malaysian Highway Authority): As requisitioned by LLM.The establishment of transmission main intake(PMU) also requires the allocation andacquisition of right of way or wayleaves for the transmission lines. Depending on thespecific design of each PMU, the overall right of way or wayleaves requirements may bedifferent.Developers of large-scale development areas, depending on the estimated demand shallbe 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 specifiedby TNB upon submission of tentative layout plans and load estimates for the wholedevelopment area.