CHAPTER-XX

AUTOMATIC BLOCK SIGNALLING

20.1 INSTALLATION
20.1.1 General
20.1.2 Signals
20.1.3 Level Crossings
20.1.4 Track circuits
20.1.5 Power Supply
20.1.6 Installation in 25 kv AC electrified areas
20.1.7 Installation of Cables
20.1.8 Electrical signalling arrangement
20.2 MAINTENANCE
20.2.1 to 20.2.2 Signal lamp
20.2.3 Test by SSE (Signal)
20.2.4 Failures reported vby driver
20.2.5 Track circuits
20.2.6 Power Supply
20.2.7 Electrical signalling arrangements
20.2.8 Cables