VRIOGS 010.7 RevA - Public Transport Victoria

44 VRIOGS 010.7 Revision A• Lugs shall then be crimped onto the cross bond or track cable. Thickwalledglue lined heat shrink shall be used to waterproof the joint. Thecable lug is fastened to the rail by means of the hexagon bolt with flatwasher and nut.2. Wherever possible track wires shall be connected directly into the impedancebond in preference to being connected to the track.3. Track wires for AC, DC or Jeumont type track circuits are to be in-line cablejointed to track lead cable, copper Hypalon cable 6 mm 2 to VRIOGS and theInfrastructure Manager’s Signalling Cable Specifications. The track lead cableis to be approximately 2 m long and the correct colour track lead is used tosignify the polarity of the track connection.4. Track wires for JTC and CSEE type track circuits are to be aluminium cable95 mm 2 , flexible to the VRIOGS Signalling Cable Specifications.5. All signalling cross bonding jumpers shall be installed with 6 mm 2 copperHypalon cable coloured red or black depending on the polarity of the rail leg.(Note: there always two bonding jumper cables installed for this purpose).6. Bonding of rail joints for track circuit continuity shall be by means of head ofrail bonding utilising two (2) 35 mm 2 flexible copper bonds per rail joint andwelded to the rail head.7. Traction return cross bonding shall be installed in accordance with planSTD_G0097 Bonding Typical Arrangement.10.6 Non-Electrified areasTrack cables, bonding and connections in the non-electrified area shall be:1. For AC, DC, WESTRAK and HVI track circuits, connection to the rail shall bevia Pot Head type Installation and be in accordance to figures:Figure 5- Typical Pot Head Type Layout and ConfigurationFigure 6- Typical Pot Head Type ConnectionFigure 7- Typical AC and DC Track Circuit ConnectionsFigure 8- Typical Westrack Track Circuit Connections2. For Level crossing predictor track connections shall be in accordance with:Figure 9- Typical HXP and GCP Track Circuit Connections3. Bonding of rail joints for track circuit continuity shall be by means of head ofrail bonding utilising two (2) 6 mm 2 flexible copper bonds per rail joint andwelded to the rail head.10.7 Reuse of Equipment1. Where the Constructor has intentions to reuse the existing track circuitequipment; the equipment shall be refurbished to the Infrastructure Managersrequirements.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.