VRIOGS 010.4 RevA - Public Transport Victoria

VRIOGS 010.4 Revision A 25SECTION 17.0PRIMARY EQUIPMENT INSTALLATION17.1 EQUIPMENT GROUPINGThe electrical equipment is grouped into six principal areas in a substation.a) AC switchgearb) Transformersc) Rectifier(s)d) DC switchgeare) Signal switchgearf) Remote terminal unit.Cable connection between areas is generally run in floor ducts and conduits passingthrough and below the concrete slab floor. Design instructions and drawings shall beadhered to. Any deviation from design must have prior approval of the Department.17.2 GENERAL REQUIREMENTSa) When transporting and moving the switchgear to its designated location allManufacturer recommendations shall be adhered tob) Before commissioning all connections shall be checked for tightness. Allbolts that need tightening shall be tightened only to the torque recommendedby the manufacturer.c) The contractor undertaking installation is responsible for the removal anddisposal of all packing, shipping fasteners and any other foreign materials.d) All AC switchgear enclosures shall be earthed as per the design. DCswitchgear enclosures shall not be earthed.17.3 PROHIBITED MATERIALThe following substances are not to be used in any part of the traction ElectricalNetwork installations:• Asbestos or Asbestos containing materials or equipment.• Polychlorinated biphenyls (PCBs)• Sulphur Hexafluoride (SF6)It is the responsibility of the contractor to ensure that the above mentioned prohibitedmaterials are not introduced during the construction works.In particular, the contractor shall be responsible for the taking of oil samples of allelectrical equipment containing oil, or taking of oil samples of bulk oil prior topumping into electrical equipment. The contractor shall then arrange for the testingof the oil samples for PCB level.NOTE: This document is controlled only when viewed on the DOT Engineering Standards website.Any other copy of this document is uncontrolled, and the content may not be current.