LUL - T0518
Signalling equipment overhaul specification Point and lock detector box
| Organization: | LUL |
| Publication Date: | 1 May 2017 |
| Status: | inactive |
| Page Count: | 36 |
scope:
This specification complies with engineering standard S1202 in defining the requirements for the overhaul of all variants of the Point and Lock Detector Box which are used extensively in the signalling system on the LU.
Purpose
This specification details the overhaul requirements of the 4-way and 6-way Point and Lock Detector Boxes (P&LD Box) which are used in the signalling system on the London Underground (LU).
Document History