VRIOGS 010.3 RevA - Public Transport Victoria

VRIOGS 010.3 Revision A 17The incoming supply feeder to the bus shall be located in the middle of theswitchboard. The outgoing feeders supplying the “upside” 5 track signallingequipment shall be located to the left of the incomer circuit breaker when viewedfrom the front of the switchboard. The leftmost circuit breaker shall be designatedNo.1. The circuit breaker numbering shall increase to the right of theswitchboard.All feeders supplying the downside 6 track signalling equipment shall be to theright of the incomer circuit breaker when viewed from the front of the switchboard.Incoming supply21 3To up sideTo down sideFigure 8-A : Signalling Switchboard Requirementsh) SCADA• Remote Terminal Unit(s)• Ancillarys – PABX Phone, Communications, Pilot entry termination .i) Battery Charger and Sealed Battery Bank (48V)The preference is for 48V DC supply to power the protection and controlequipment. However specific equipment may necessitate a different supplyvoltage. The secondary preference is for a 110V or 125V DC supply.j) Negative Busk) Earthing System8.3 INTERCONNECTING CABLES8.3.1 CABLING - GENERAL8.3.1.1As per AS 3000 section 3.9.8 the following categories of cables shall be run inseparate ducts or conduits whether they are inside or outside the substation building.1 High Voltage.5 Upside is the direction towards Melbourne CBD6 Downside is the direction away from the Melbourne CBDNOTE: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.