CONTENTS.

CHAPTER-XI

DUTIES OF MAINTAINERS

Para No. Description
11.1 A. Technical Duties of Signal Maintainers
11.2 The duties of Signal Maintainer
11.3 Locking of Interlocking Frames and Interlocking Circuits
11.4 Maintenance Programs Disconnection of apparatus
11.5 Failures
11.6 Accidents
  B. GENERAL DUTIES OF MAINTAINERS
11.7 Knowledge of Rules and Instructions
11.8 Staff under maintainer
11.9 Maintenance of Muster Sheets etc
11.1 Materials and Tools and Plant
11.11 Co-operation between Electrical and Mechanical Signal Maintainers
Annexure 1 Maintainer's report
Annexure 2 Disconnection Notice
Annexure 3 Situations in which disconnection Notice need not be issued provided suitable precautions are taken
Annexure 4 Competency certificate cum training history book.
CHAPTER-XII
 DETAILED INSTRUCTIONS FOR INSTALLATION & MAINTENANCE OF MECHANICAL SIGNALLING EQUIPMENT
. INSTALLATION

SECTION 'A' CABINS

. SECTION 'B' - LEVER FRAME
12.1 Cabins
12.2 Conformity to drawing and specifications
12.3 Marking of parts
12.4 Assembling mechanical locking
12.5 Checking of components
12.6 Erection
12.7 Subsequent additions and alterations
12.8 Information to the Divisional Signal & Telecommunication Engineer
. SECTION 'C - LEAD OUTS (RODDING)
12.9 Type
12.1 Arrangement of Accommodating Cranks
12.11 Down rods
12.12 Rod connections to accommodating cranks
12.13 Crank fastening bolts
12.14 Movement of lead off cranks
12.15 Use of high cranks
12.16 Rod run on curves
. SECTION 'D' - POINT RODDING AND FITTINGS
12.17 Point Rodding
12.18 Alignment
12.19 Distance from the centre of track 
12.20 Branching Off
12.21 Rodding running under track
12.22 Fixing Roller Standard
12.23 Spacing of rollers
12.24 Location of cranks, compensators, couplings & lug eyes
12.25 Offsets in roddings 
12.26 Offset in cranks and compensators
12.27 Fixing Trestles of Point Rod Rollers
12.28 Fixing Trestles foundations
12.29 Provision of compensators
12.30 Fixing cranks and compensators   
12.31 Joints for connections to cranks and compensators
12.32 Joints for branching off
12.33 Location of screw joint
12.34 Point adjusting screws
12.35 Adjustable cranks
12.36 Bolts, Nuts, Washers & Pins
12.37 Washers
12.38 Coach screws
12.39 Reaming of pin holes
. SECTION 'E' - POINTS
12.40 Essential requirements before interlocking
12.41 Adjustment of Point Switches
12.42 Permissible Distances
. SECTION 'F' - FACING POINT LOCKS,  SWITCH &  LOCK
. MOVEMENTS AND SPRING POINT LEVERS - SELF REVERSING
12.43 Layout
12.44 Notches
12.45 Facing Point Lock-plunger type
12.46 Obstruction Test
12.47 Switch & lock layouts
. SECTION 'G' - LOCK BARS    
12.48 Length
12.49 Adjustment
. SECTION 'H' - POINT, TRAP AND SHUNTING PERMITTED
. INDICATORS          
12.50 Type, Provision, Placing and Indication
. SECTION 'I' -  LOCATION OF SIGNALS     
12.51 Deviation to SOD
12.52 special instructions 
12.53 Inspection by a Signal sighting committee
. SECTION 'J' -  SIGNALS AND FITTINGS     
12.54 Signal arms and its fittings 
12.55 Slotting        
12.56 Shunt Signals
12.57 Balance Levers
12.58 Back Lights  
12.59 Lopping of trees obstructing visibility
12.60 Artificial backgrounds
12.61 Posts
12.62 Deck Boards
12.63 Provision of Signal Dubbers and Kerosene
12.64 Cleaning of Signal roundels and lamp lenses
. SECTION 'K'   - DETECTORS
12.65 Fitting and placing
12.66 Wire connections and adjustment
12.67 Signal Slide Notches
12.68 Obstruction tests
. SECTION 'L' - SIGNAL WIRE RUN (SINGLE WIRE)
12.69 Spacing of pulleys
12.70 Sharp Diversions
12.71 Wire runs under track
12.72 Wire runs under level crossings
12.73 Wire runs on curves
12.74 Leading away wire from a main run
12.75 Bridge stakes
12.76 Wire crossing
12.77 Signal wires 
. SECTION 'M' - PULLEY STAKES AND PULLEYS   
12.78 Fixture and alignment
12.79 Fastening pulley brackets
12.80 Maximum spacing between the pulley stakes
12.81 Alignment of Pulley stakes 
. SECTION 'N'  WIRE JOINTS AND SPLIT LINKS     
12.82 Wire Joints
12.83 Split links
. SECTION 'O' - WIRE ROPE     
12.84 Galvanized wire rope
12.85 Wire rope round wheels
12.86 Wire rope on cabin wire adjusters
12.87 Precautions in cutting
12.88 Lubrication
. SECTION 'P' - WIRE ADJUSTING APPARATUS (SINGLE WIRE)  
12.89 Wire adjusting screw
12.90 Cabin Wire Adjuster
12.91 Additional adjusting screws
. SECTION 'Q' - FOUNDATIONS (SINGLE WIRE)     
12.92 Foundations generally
12.93 Foundations for cranks and compensators
12.94 Foundations for wheels, detectors, point indicators and dwarf signals ..
12.95 Fixture of cranks, wheels, detectors, point indicators and dwarf signals to foundations
12.96 Foundations for signals
12.97 Pits for foundation adjacent to tracks
12.98 Concrete foundations
. SECTION 'R' - DOUBLE WIRE INSTALLATIONS - INTERLOCKING FRAMES AND LEAD OUTS    
12.99 Type     
12.100 Double wire levers 
12.101 Size of Drums
12.102 Erection
12.103 Levers for operating Points, locks, detectors and signals
12.104 Clutch lever-adjustment of clutch  
12.105 Clutch Resetting Lever
12.106 Wire crosses
12.107 Double wire operation from single wire lever
12.108 Compensators
12.109 Application
12.110 Installation
12.111 Pulleys & Stakes   
12.112 Fixture and alignment of stakes
12.113 Running out wire
. DIVERSIONS IN TRANSMISSIONS       
12.114 Use of wire pulleys 
12.115 Use of wheel with wire rope
12.116 Wheel Guides
12.117 Length of rope and spacing of joints at diversions
. WHEEL BASE   
12.118 Fixing Wheels and Wheel Base foundations
. JOINTS    
12.119 Type and location
12.120 Disconnecting Link 
. ADJUSTING SCREWS 
12.121 Provision
12.122 Minimum Spacing
12.123 Opening
. POINT, LOCK AND SIGNAL MECHANISMS
12.124 Type     
12.125 Installation of mechanisms
12.126 Size of Wire 
. DETECTORS       
12.127 Fitting of detectors to Points
12.128 Connections 
12.129 Number and spacing
12.130 Size of wire 
12.131 Adjustment
12.132 Protecting Covers
. SECTION 'S' - PAINTING   
12.133 Equipment to be painted
12.134 Colouring Scheme 
12.135 Interval of Painting
12.136 Record of Painting
. GENERAL INSTRUCTIONS
12.137 Stores
12.138 Mixing of Paints
12.139 Painting of steel works
12.140 Enamel Signal Arms
12.141 Numbering of Points and Signals 
12.142 Dates of Painting
. MAINTENANCE
. SECTION 'A'- CABINS.
12.143 Cabins-cleanliness, repair and fittings
12.144 (Left blank Intentionally)
. SECTION 'B' - LEVER FRAME
12.145 Responsibility
12.146 Instructions for maintainers
12.147 Instructions for Junior Engineer (Signal)
. SECTION 'C - LEAD OUTS (RODDING)  
12.148 to 12.149 Lead outs
. SECTION 'D' - POINT RODDING AND FITTINGS
12.150 Examination 
12.151 Alignment
12.152 Rollers
12.153 Roller foundations
. SECTION 'E' - CRANKS, COMPENSATORS, SCREWS, BOLTS, NUTS, PINS AND COTTERS
12.154 Examination  
12.155 Replacement of cracked or broken parts 
12.156 Cleaning of oil holes
12.157 Screws, bolts and nuts
12.158 Adjusting Screws
12.159 Pins
12.160 Keys and Cotters
. SECTION 'F' - POINTS
12.161 Visual inspection
12.162 Responsibility of SSE/SE/JE (P-Way) & SSE/SE/JE (Signal)  
12.163 Damaged switches and packing of sleepers
12.164 Testing and adjustment
. SECTION 'G' - FACING POINT LOCKS, SWTICH & LOCK MOVE-MENTS AND SPRING POINT LEVERS - SELF REVERSING
12.165 Facing point locks
12.166 Switch & Lock Movement  
12.167 Loose or cracked parts
12.168 Cross Slides ..
12.169 Testing Switch and Lock movements and facing point locks
. SECTION 'H' -  LOCK BARS    
12.170 General
12.171 Testing Lock Bars
. SECTION 'I' -   DETECTORS     
12.172 Detector examination and lubrication
12.173 Detector notches
12.174 Cleaning of detector shoes and angle slides
12.175 Testing detectors
12.176 Replacement of cracked or broken parts 
. SECTION 'J' - SIGNAL WIRE RUN  (SINGLE WIRE)
12.177 Alignment
12.178 Wires generally
12.179 Wires under track
. SECTION 'K' -  PULLEY STAKES AND PULLEYS  
12.180 Pulleys and Pulley stakes 
. SECTION 'L' -  ELECTRICAL  REPEATERS AND SIGNAL LAMPS
12.181 Periodical inspection by JE/SE (Signal)
12.182 Examination and replacement of Signal & Indicator lamps
. SECTION 'M' -   DOUBLE WIRE INSTALLATIONS - INTERLOCKING FRAMES AND LEAD OUTS  
12.183 Transmissions Generally
12.184 Maintenance of Compensators
12.185 Testing Point, Lock, Detector and Signal Levers
12.186 Broken wire lock
12.187 Broken wire tests
12.188 Reconnection or repairs after wire breakage
12.189 Responsibility and Periodicity of Broken Wire Tests
12.190 Wire stretch on newly laid Double Wire transmission   
. SECTION 'N' -   PAINTING
. SECTION '0' - MAINTENANCE   SCHEDULES
Annexure 5 Essential Requirements before interlocking of a point
Annexure 6 Colouring scheme
Annexure 7 Maintenance schedule for mechanical signalling
CHAPTER-XIII
OVERHAULING AND TESTING OF INTERLOCKINGS (MECHANICAL, ELECTROMECHANICAL AND RELAY INTERLOCKING)
. GENERAL REQUIREMENTS
13.1 Interlocking Frames
13.2 System and Equipment Testing
. SECTION 'A' OVERHAULING OF INTERLOCKING FRAMES, INTERLOCKING KEY BOXES AND STATION MASTER'S SLIDE CONTROL FRAMES 
13.3 Periodicity
13.4 Programme of overhauling  
13.5 Requirement of materials for overhauling
13.6 Interlocking Frame 
13.7 Detailed Instructions for Overhauling
13.8 Resumption of normal working
13.9 Overhauling of Interlocking Key Boxes
13.10 Overhauling of Station Master's Slide Control Frame
13.11 Certificate of Overhauling
. SECTION 'B' TESTING OF INTERLOCKING FRAMES, INTER- LOCKING KEY BOXES AND STATION MASTER'S SLIDE CONTROL FRAMES   
13.12 Periodicity   
13.13 Programme of Testing
13.14 Essential requirements of Locking to be tested 
13.15 Methods of testing
13.16 Testing by the Supervisory SSE/SE/JE (Signal) 
13.17 Testing by the Divisional/Assistant Signal and Telecommunication Engineer
13.18 Instructions for testing
13.19 Test Charts 
13.20 Lost Motion Test
13.21 Certificate of testing locking
. SECTION 'C' RECORDS
13.22 Records of testing and overhauling
13.23 Date of last overhauling and testing
. SECTION 'D' TESTING AND OVERHAULING OF ELECTRO- MECHANICAL INSTALLATIONS
13.24 Mechanical Locking
13.25 Electrical Locking
13.26 Testing and overhauling of Electrical Locking
13.27 Testing of other electrical equipments
13.28 Date of last overhauling and testing
13.29 Certificate of overhauling
. SECTION 'E' TESTING OF ELECTRICAL SIGNALLING CIRCUITS
13.30 General
13.31 to 3.32 Test Procedures
13.33 Testing Instruments
13.34 Physical inspection of the installation
13.35 Checking of the wiring
13.36 Test of individual circuits
13.37 Testing of individual apparatus
13.38 System Testing of Installation
13.39 Typical testing Procedure for Panel Interlocking/Route Relay Interlocking Installations
13.40 Periodicity of tests
13.41 Precautions during testing
Annexure 8 Certificate of overhauling interlocking frames
Annexure 9 Certificate of testing locking
CHAPTER-XIV
LEVEL CROSSING
14.1 General
14.1.1 Classification of level crossings
14.1.2 Gates
14.1.2.1 Non-interlocked gates
14.1.2.2 Interlocked gates
14.1.2.3 Engineering gates
14.1.2.4 Traffic gates
14.1.3 Normal position of gates
14.1.4 to 14.1.7 Equipment at level crossing
14.1.8 Interlocking
14.1.9 Communication
14.1.10 Approach warning
14.2 Installation
. (A)   Instructions applicable to both mechanical and electrical lifting barriers
. (B)   Mechanical lifting barriers
. (C)   Electric lifting barrier
14.3 Maintenance
14.3.1 Mechanical lifting barriers
14.3.2 Electric lifting barrier
Annexure 10 Safety measures to be provided at Level Crossings
Annexure 11 Maintenance schedule of Level Crossing
CHAPTER-XV
 CABLES
15.1 General
.  Part I Cables
. SECTION 'A' - REQUIREMENTS
15.2 Types of cables
15.3 Planning
15.4 Laying cable above ground
15.5 Cable laid underground
15.6 Laying of cable in ducts
15.7 Laying of different type of cable in same duct
15.8 Laying of other department cable
15.9 Storing & transportation of cable
. SECTION 'B' INSTALLATION
15.1 Paying out & testing the cable
15.11 to 15.13 Laying
15.14 Cable crossing
15.15 Cable markers
15.16 Precaution to be taken while carrying the cable
15.17 Excavation of trenches
15.18 Back filling of the trench
15.19 Earth of the trench
15.2 Laying near to sleeper
15.21 Cable Joints
15.22 Supervision of cable laying
. SECTION 'C' MAINTENANCE
15.23 Testing of cables
15.24 Earth leakage detectors
15.25 Cable termination devices
15.26 Excavation in the vicinity of underground signalling cable
15.27 Inspection of protective work
. Part II Overhead Lines
Annexure 12 Instruction for insulation resistance testing of signalling cable
Annexure13 (Left blank intentionally)
CHAPTER-XVI
POWER SUPPLY ARRANGEMENTS
16.1 General
16.2 Sources of Power Supply
16.3 Distribution of Power Supply
16.4 Power Supply Equipment
16.5 Installation of Primary Cells
16.6 Installation of Secondary Cells
16.7 Installation of Power Supply Equipment
16.8 Installation of DG Set
16.9 Maintenance of Primary Cells
16.1 Maintenance of Secondary Cells
16.11 Maintenance of Power Supply Equipment
16.12 Maintenance of DG Set
Annexure 14 Fuel consumption logbook
Annexure 15 Installation and maintenance instructions for self regulating battery charger as per IRS : S 86-2000
Annexure 16 Secondary battery history card
Annexure 17 (Left blank intentionally)
CHAPTER-XVII
TRACK CIRCUITS AND AXLE COUNTERS
. I. TRACK CIRCUITS
. A. REQUIREMENTS    
17.1 Types of Track Circuits
17.2 Minimum Length
17.3 Series connection of tracks
17.4 Track relays 
17.5 Permanent way requirements of track circuits
. B. INSTALLATION
17.6 Location of track relays
17.7 Loading of track relay contacts
17.8 Jumper connections
17.9 Lead Wires  
17.10 Bond Wires and Rope Wires
17.11 Track Circuit Termination
17.12 Cut Section (fed over) arrangement of Track Circuits
17.13 Insulated Rail Joints
17.14 Track Indicators
17.15 DC Track Circuits
17.16 AC 50Hz/ 83.33 Hz Track Circuits
17.17 AC 50 Hz Track Circuits with Vane type Relays 
17.18 AC 50Hz/ 83 -1 Hz Track Circuits with Motor type Relays
17.19 Audio frequency Track Circuits
17.20 High Voltage Impulse Track Circuits
  C. MAINTENANCE
17.21 General
17.22 Track Relays
17.23 Insulated Rail Joints
17.24 Detection of faulty insulated joint
17.25 Stretcher Bars and Point Rodding Connections 
17.26 Bond Wires/Rope Wires
17.27 Jumper Connections
17.28 Ballast   
17.29 Drainage
17.30 Joint Inspection of Track by S&T and Permanent Way Inspector
17.31 Train Shunt
17.32 Track Circuit Test Record Card
17.33 Track Batteries/Track Feed Apparatus
17.34 Limiting Reactance of AC track circuit
17.35 Measurement of Phase Angle of AC track circuit
17.36 Raking out of cinders
17.37 Rusty Rails  
. II AXLE COUNTERS
. A. REQUIREMENTS    
17.38 to 17.42 Composition, application
. B. INSTALLATION
17.43 Installation of track devices and trolley protection track circuit
17.44 to 17.47 Resetting of axle counter
17.48 Protection for axle counter block working
17.49 Fixing of double rail mounted track device
. C. MAINTENANCE
17.50 to 17.53 Maintenance instructions and practices
Annexure 18 Centralization of DC shelf type track relays
Annexure19 Track circuit test record card
Annexure 20 Track circuit test card
Annexure 21 Maintenance card - Jeumont track circuit
Annexure 22 Maintenance Instructions for Axle Counter
Annexure 23 (Left blank Intentionally'
CHAPTER-XVIII
BLOCK INSTRUMENTS
. INSTALLATION
. SECTION 'A' - GENERAL
18.1 Fixture
18.2 Painting
18.3 Transmission Media and other wires
18.4 Block instruments distinction of
18.5 Protective meanures against power line parallelism
18.6 Earth
. SECTION 'B' -  SINGAL LINE TOKEN INSTRUMENTS
18.7 to 18.9 Installation
18.10 to 18.3 Tests to be conducted after installation and before commissioning
. SECTION 'C' - DOUBLE LINE BLOCK INSTRUMENTS
18.14 Relays
18.15 Block Release
18.16 to 18.20 Tests to be conducted at the time of installation
. SECTION 'D' SINGLE LINE TOKENLESS BLOCK INSTRUMENT
18.21 Mounting of instrument
18.22 Checks required before installation of instrument
18.23 Issulation Resistance
18.24 Block Release
18.25 to 18.30 Testing of Single Line Tokenless Bleck Block Instruments
. MAINTENANCE
. SECTION 'E' TOKEN INSTRUMENTS - GENERAL
18.31 Register of block Instruments
18.32 Censuse of Tokens
18.33 Damaged Tokens
18.34 to 18.36 Lost Tokens
18.37 Balancing Token
18.38 Token pouches
18.39 Responsibility of the Operating Staff
18.40 Importance of bell signals 
. SECTION 'F' - BLOCK INSTRUMENTS & THEIR ANCILLARY APPARATUS GENERAL INSTRUCTIONS MAINTENANCE
18.41 Maintenance Check
18.42 Overhauling of Block Instruments
18.43 to 18.46 Block Earths
. SECTION 'G' - MAINTENANCE - DETAILED INSTRUCTIONS
18.47 to 18.54 Token Instruments
18.55 to 18.56 Double Line Block Instruments
. SECTION 'H' - MAINTENANCE SCHEDULE
18.57 Maintenance Schedule for Block Instruments
. SECTION 'I' - AXLE COUNTER BLOCK INSTRUMENTS
18.58 Maintenance of Axle Counter Block Instrument
. SECTION 'J' - SOLID STATE BLOCK SYSTEM
18.59 Maintenance of Solid State Block System
Annexure 24 Painting Scheme-Block Signalling Equipment
Annexure 25 Format for recording particulars of lost token
Annexure 26 Token Balance Book Format
Annexure 27 Method of finding out the resistance of an earth
Annexure 28 Schedule of Maintenance for Block Instrument
CHAPTER-XIX
DETAILED INSTRUCTIONS FOR INSTALLATION & MAINTENANCE OF ELECTRICAL SIGNALLING EQUIPMENT
. SECTION 'A' - GENERAL INSTRUCTIONS FOR PROPER USE OF TOOLS
19.1 to 19.3 General Instructions
19.4 Soldering Connections
19.5 Wire Termination
. SECTION 'B' - COLOUR LIGHT SIGNALS  INSTALLATION
19.6 Type
19.7 Visibility
19.8 Location
19.9 Mounting and Fixtures
19.10 Alignment
19.11 Focussing
19.12 Hoods and Back Screens
19.13 Cables
19.14 Gaskets and Sealing
19.15 Locking
. SECTION 'C - ELECTRIC SIGNAL MACHINES
19.16 Type
  INSTALLATION      
19.17 to 19.18 Installation
19.19 Testing
19.20 Locking
. SECTION 'D' - ELECTRICALLY LIT SEMAPHORE SIGNALS
19.21 to 19.23 Installation
. SECTION 'E' - ELECTRIC SIGNAL REVERSERS       ......
19.24 Type
19.25 Fixing
19.26 Locking
19.27 Installation
. SECTION 'F' - ELECTRIC POINT MACHINES REQUIREMENTS
19.28 to 19.33 Installation
19.34 Initial adjustment of Point Machine
19.35 Adjustment of Driving Rod  
19.36 Adjustment of detector contacts
19.37 Adjustment of friction clutch
19.38 Obstruction Test
  SECTION 'G' - ELECTRICAL DETECTOR    
 19.39 to 19.46 Installation
19.47 Circuit Controller
  SECTION 'H' - RELAYS REQUIREMENTS
19.48 Type        
19.49 Flasher
19.5 Storage
19.51 Protection
19.52. Transportation
. INSTALLATION   
19.53 to 19.58 Location     
19.59 Code Pin Configuration
19.60 Relay Clip
19.61 Relay Index Board
19.62 Cross protection and double cutting
19.63 Contact Chart
19.64 Sealing of Plug-in Relays
. SECTION 'I' - STATION MASTER'S SLIDE CONTROL FRAMES    ..
19.65 Type       
19.66 Fixing
19.67 Location
19.68 Mechanical Locking 
19.69 Locking or sealing
. SECTION 'J' - ELECTRIC KEY TRANSMITTER INSTALLATION 
19.70 Type  
19.71 Fixing
19.72 Location
19.73 Communication
19.74 Keys     
19.75 Sealing
. SECTION 'K' - ELECTRIC LEVER LOCK    
19.76 to 19.78 Installation
. SECTION 'L' - SIGNAL INDICATOR 
19.79 Location      
19.80 Protection
19.81 Audible Warning   
19.82 Wiring
19.83 Signal Arm & Light Repeater
19.84 Colour Light Signal Indicator
19.85 to 19.86 (Left blank intentionally)
. SECTION 'M' - FUSES
19.88 to Fuses
. SECTION 'N' - EARTH CONNECTIONS   
19.88 to 19.91 Earth Connections 
19.92 Method of obtaining Earth
19.93 Earthing Leads      
19.94 to 19.101 Earth Electrode Siting
19.102 Earth Resistance  
19.103 Earth Electrodes
19.104 Watering   
19.105 Earth Connections 
. SECTION 'O' - PAINTING OF ELECTRICAL SIGNALUNG EQUIPMENT
19.106 Colour Scheme
19.107 Interval of Painting
. COLOUR LIGHT SIGNALS        
19.108 Cleanliness of Lenses
19.109 Replacement     
19.110 Maintenance checks
. ELECTRIC SIGNAL MACHINES
19.111 Cleanliness  
19.112 Lubrication
19.113 Contacts
19.114 Commutators and Brushes
19.115 Tests
. ELECTRICALLY LIT SEMAPHORE SIGNALS........
19.116 Maintenance
. ELECTRIC SIGNAL REVERSERS
19.117 Maintenance
19.118 Tests
. ELECTRIC POINT MACHINES
19.119 to 19.126 Maintenance
19.127 to 19.129 Tests
. ELECTRIC DETECTOR
19.130 to 19.133 Maintenance
19.134 Obstruction Test
19.135 Circuit Controller
. RELAYS
19.136 to 19.138 Maintenance
19.139 to 19.140 Periodical Inspection
19.141 Overhauling
. STATION MASTER'S SLIDE CONTROL FRAMES
19.142 Maintenance
19.143 Testing and Overhauling
. ELECTRIC KEY TRANSMITTER
19.144 Maintenance
19.145 Testing of Key Transmitter
. ELECTRIC LEVER LOCK
19.146 Maintenance
. SIGNAL ARM AND LIGHT INDICATORS
19.147 Maintenance
. MAINTENANCE SCHEDULE
19.148 Schedule of Maintenance of Electrical Signalling Equipment
Annexure 29 Colour Scheme for Electrical Signal Equipment
Annexure 30 Schedule of Maintenance Electrical Signalling Equipment
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
CHAPTER-XXI
 RELAY AND ELECTRONIC INTERLOCKING
. A RELAY INTERLOCKING
21.1 General Requirement
21.2 Control Panel
21.3 Control Panel Indication
21.4 Interlocking & circuit requirements
21.5 Route Release Circuits
21.6 Signal control circuits
21.7 Interlocking of level crossing gates
21.8 Point interlocking & control circuits
21.9 Cross protection
21.1 Relays
21.11 Signals
21.12 Points
21.13 Track circuits
21.14 Cables
21.15 Wiring & Relay racks
21.16 Fuses, terminals & Terminal links
21.17 Power supply arrangements
21.18 General
. B ELECTRONIC INTERLOCKING
. (Section left blank)
CHAPTER-XXII
SPECIAL REQUIREMENTS OF SIGNALLING IN 25KV AC ELECTRIFIED AREA
22.1 General
22.2 Signal structure
22.3 Visibility of signals
22.4 Cables and Cable Laying
22.5 Signalling and Interlocking Circuits
22.6 Line circuits
22.7 Signal feed Circuitry
22.8 Point operation and Detection
22.9 Block working
22.1 Track circuits
22.11 Power Supply
22.12 Axle counter
22.13 ATP system
22.14 Earthing
22.15 Rules for Protection of Staff working on Signal & Telecommunication Installation Extracts of Para 20.5 of Appendix 1 of ACTM Vol. II, Part II
Annexure 31 Detailed Instructions for measurement of stray Direct Current before installation of DC Single Rail Track Circuits
Annexure 32 Provisions of Part 'J' of Permanent Way Manual
Annexure 33 RE Drawing from 22.1 to 22.16