General Information on Track Circuits - RGS Online

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Railway Group Approved Code of Practice GK/RC0752 Issue Two Date December 1998 Page E40 of 52 Notes * IRJ Intertrack Cables A * IRJ Intertrack Cables B Item 1 Intertrack Cables B IRJ IRJ Double Rail Track Circuit to Non Track Circuited Lines Double Rail Track Circuit to Double Rail Track Circuit Substations T.P Hut Neg Return A * IRJ Intertrack Cables A Intertrack Cables A Item 3 Substations Neg Return B Substations Neg Return B IRJ Double Rail Track Circuit to Single Rail Track Circuits T.P. Huts or Cross Bonding Sites. 1 All lugs complete with bolts, nuts and washers for negative cross bonding substations and T.P. hut cable attached to busbar to be supplied and fitted by Electric Traction Engineer. 2 For details of all busbars see Figure E39. 3 For full details of layouts see Figure E27, Figure E28. * * <strong>General</strong> <strong>Information</strong> on Track Circuits Intertrack Cables 4 Traction Return cable sizes : A = 240mm2 Aluminium B = 800mm2 Aluminium 5 Where TI.21 Track Circuits rail bonds require to share the first sleeper bay with the traction return cable, they must be taped to the traction return cable. Orange pipe must not be used. * T.P. Huts Neg Return A * * Intertrack Cable A * IRJ Intertrack Cables B Double Rail Track Circuit Intermediate Bond at Substation E 40 R A I L T R A C K B Intertrack Cables B 6 The Electric Traction Engineers lugs to be attached to the top of the busbar (See Figure E55 for marking jig). 7 Impedance bonds at substations and T.P. Huts to be sited in co-operation with the Electric Traction Engineer. 8 In all layouts a longer busbar may be provided where necessary to accommodate reinforcing cables. * Cross track orange plastic pipe for protection of signalling cables. Withdrawn Document Uncontrolled When Printed IRJ IRJ Double Rail Track Circuit to Double Rail Track Circuit T.P. Huts Or Cross Bonding Sites Intertrack Cables B Substations Neg Return B IRJ Double Rail Track Circuit to Single Rail Track Circuits Substations Substation Neg Returns B Substation Neg Returns B * * Substations Neg Return B T.P. Hut Neg Returns Intertrack Cables A Item 5 Item 6 Item 7 Figure E38 Impedance Bond Connection Arrangements (Other than Type 3) Item 2 Item 4 Double Rail Track Circuit Intermediate Bond T.p. Huts or Cross Bonding Sites B
Withdrawn Document Uncontrolled When Printed <strong>General</strong> <strong>Information</strong> on Track Circuits 17.6 Busbar Details and Layouts Figure E39 shows busbar drilling layouts. 2 Holes 12 Dia B Figure E39 P3 M6 WH3 or MR 15 15 11 11 6 Holes 14 Dia 15 15 6 Holes 12 Dia 100 6 Holes 18 Dia 4 Holes 14 Dia Railway Group Approved Code of Practice GK/RC0752 Issue Two Date December 1998 Page E41 of 52 R A I L T R A C K E 41 55 55 50 55 44.5 51 45 25 41 41 41 19 76 25 44.5 75 20 M,M2,M5 15 15 6 Holes 14 Dia DE DD 6 Holes 14 Dia 4 Holes 14 Dia 55 44.5 100 100 50 19 44.5 50 19 57 41 25 35 38 35 22
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