scope:

The contents of this code of practice apply to all rail clamp point locks emanating from the former BR design. Although not all developments since 1995 are included in this issue, reference is made to some more recent standards which encompass such topics. Details of new microswitches are detailed in RT/E/C/19018 - SigTAN018, Rail Clamp Point Lock. This information and future developments will be incorporated into RT/E/C/11774 at a later date.

Definitions of general signalling terms can be found in GK/RT0002 and technical terms in RT/E/G/11720.

PURPOSE

This code of practice gives details of best practice in respect of rail clamp point locks, so as to satisfy the mandatory requirements of Railway Group Standard GI/RT7004, Requirements for the Design, Operation and Maintenance of Points.