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