Working Of Points And Signals...Working Of Points And Signals TABLE OF CONTENTS 1. TESTING OF FIXED...
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Working Of Points And Signals TABLE OF CONTENTS 1. TESTING OF FIXED SIGNALS AND WIRES ...................................... 5-1 (a) Testing of Fixed Signals .............................................................. 5-1 (b) Back Lights .................................................................................. 5-1 (c) Train Register Book Entries ........................................................ 5-1 (d) Regulating Signal Wires .............................................................. 5-1 (e) Obstruction on Line ..................................................................... 5-1 (f) Defects ......................................................................................... 5-2 2. FIXED SIGNALS AND POINTWORK .................................................. 5-2 (a) Distant Signals ............................................................................. 5-2 (b) Facing Points ............................................................................... 5-2 (c) Signals Governing Facing Points ................................................ 5-2 (d) Signals Controlled by Track Circuit ............................................ 5-3 (e) Shunting ....................................................................................... 5-3 (f) Care Whilst Shunting .................................................................. 5-3 (g) Vehicles in Sidings ...................................................................... 5-3 3. CATCH POINTS ...................................................................................... 5-3 4. REVERSING OF SIGNALS ................................................................... 5-3 (a) Signals at “Proceed” not to be placed to stop .............................. 5-3 (b) Converging Trains ....................................................................... 5-4 (c) Overhead Sectioning.................................................................... 5-4 5. SIGNALS NOT IN USE ............................................................................ 5-4 (a) Semaphore Signals ........................................................................ 5-4 (b) Light Signals ................................................................................ 5-4 (c) Disc or Dwarf Signals ................................................................... 5-5 6. LEVER SLEEVES.................................................................................... 5-5 (a) Description of Lever Sleeves....................................................... 5-5 (b) Disconnection Between Levers and Points ................................. 5-5 (c) Duties of Maintenance Employee ............................................... 5-5 7. POINTS INDICATORS ........................................................................... 5-6 (a) Coloured Point Indicator ............................................................. 5-6 (b) Plunger Locked Indicator ............................................................ 5-6 Revision 4 (1999) 5-I
Transcript of Working Of Points And Signals...Working Of Points And Signals TABLE OF CONTENTS 1. TESTING OF FIXED...
Working Of Points And Signals
TABLE OF CONTENTS
1. TESTING OF FIXED SIGNALS AND WIRES...................................... 5-1 (a) Testing of Fixed Signals .............................................................. 5-1 (b) Back Lights.................................................................................. 5-1 (c) Train Register Book Entries ........................................................ 5-1 (d) Regulating Signal Wires.............................................................. 5-1 (e) Obstruction on Line ..................................................................... 5-1 (f) Defects ......................................................................................... 5-2
2. FIXED SIGNALS AND POINTWORK .................................................. 5-2
(a) Distant Signals............................................................................. 5-2 (b) Facing Points ............................................................................... 5-2 (c) Signals Governing Facing Points ................................................ 5-2 (d) Signals Controlled by Track Circuit............................................ 5-3 (e) Shunting....................................................................................... 5-3 (f) Care Whilst Shunting .................................................................. 5-3 (g) Vehicles in Sidings ...................................................................... 5-3
3. CATCH POINTS ...................................................................................... 5-3 4. REVERSING OF SIGNALS ................................................................... 5-3
(a) Signals at “Proceed” not to be placed to stop.............................. 5-3 (b) Converging Trains ....................................................................... 5-4 (c) Overhead Sectioning.................................................................... 5-4
5. SIGNALS NOT IN USE............................................................................ 5-4
(a) Semaphore Signals ........................................................................5-4 (b) Light Signals................................................................................ 5-4 (c) Disc or Dwarf Signals ...................................................................5-5
6. LEVER SLEEVES.................................................................................... 5-5
(a) Description of Lever Sleeves....................................................... 5-5 (b) Disconnection Between Levers and Points ................................. 5-5 (c) Duties of Maintenance Employee ............................................... 5-5
7. POINTS INDICATORS ........................................................................... 5-6
(a) Coloured Point Indicator ............................................................. 5-6 (b) Plunger Locked Indicator ............................................................ 5-6
Revision 4 (1999) 5-I
Working Of Points And Signals 8. POINT DETECTORS............................................................................... 5-6
(a) Correct Setting of Facing Points.................................................. 5-6 (b) Regulating Signal Wires.............................................................. 5-7 (c) Signal Applies to More Than One Route .................................... 5-7
9. AUTOMATIC TRAIN STOPS ................................................................ 5-7
(a) Description of Automatic Train Stops......................................... 5-7 (b) Trip Valve.................................................................................... 5-8 (c) Multiple Trip Valves Cut In ........................................................ 5-8 (d) Trip Valve Irregularly Operated.................................................. 5-8 (e) Trip Valve Operated Close to a Home Signal ............................. 5-9 (f) Defective Train Stop .................................................................... 5-9 (g) Assistance for Driver; Defective Trip valve................................ 5-9
10. FIXING, REMOVING OR REPARING SIGNALS OR APPARATUS FOR WORKING POINTS AND SIGNALS ................. 5-9
(a) Advance Notice for Maintenance Work...................................... 5-9 (b) Alteration to Signalling ............................................................. 5-10 (c) Special Point Clip ...................................................................... 5-10 (d) Disarrangement of Interlocking................................................. 5-10 (e) Train Register Book and Voice Recording Facilities................ 5-11 (f) Lever Sleeves or Blocking Commands/Jacks to Affected
Points or Signals ........................................................................ 5-11 (g) Distant Signals Disconnected .................................................... 5-11 (h) Hand Signaller ........................................................................... 5-11 (i) Multiple Points Disconnected.................................................... 5-12 (j) Movement of Points................................................................... 5-12 (k) Dual Control Motor Operated Points ........................................ 5-12 (l) Interlocked Level Crossing Gates ............................................. 5-12 (m)Electro-hydraulic Dual Control Points....................................... 5-12 (n) Disconnected Points .................................................................. 5-13 (o) Hand Signaller for Repairs at Level Crossings ......................... 5-13
11. RETURNING WORKING POINTS AND SIGNALS TO SERVICE .............................................................................................. 5-13
(a) Restoring Locking ..................................................................... 5-13 (b) Voice Recording Facilities ........................................................ 5-13 (c) Interlocking Remote from Signalbox ........................................ 5-14 (d) Security of Interlocking............................................................. 5-14
12. CERTIFICATE OF TESTING ............................................................. 5-14
5-ii Revision 4 (1999)
rapsonk
Ammended by Circular SW1067/2003 See previous pages
rapsonk
Amended by Circular SW.1067/2003 See previous pages
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