scope:

This module covers the requirements related to the approach for managing the procedural interfaces between OLE and high voltage distribution equipment when working on the operational railway with 25 kV a.c. overhead line systems.

Autotransformer feeder circuits that comprise a cabled connection for the entirety of the circuit and that is classed as distribution system equipment are excluded from the scope of this standard.

This module is applicable to Network Rail personnel and to Network Rail's contractors.

To provide a consistent approach to working on or about 25 kV a.c. electrified lines, Train Operating Companies may, as best practice, apply this standard to infrastructure they control.

This module also includes:

• Work on or about any future sections of electrification on Network Rail controlled infrastructure and areas required to adopt a process for securing points of disconnection to form points of isolation to use the Supplementary Isolation Process (Module X). 

• Planning of isolations, testing and earthing of overhead line equipment on Network Rail controlled infrastructure equipped with 750V d.c. overhead line system (Sheffield Tram Train - Module Y).

• Planning of isolations, testing and earthing of overhead line equipment on Network Rail controlled infrastructure equipped with 1500V d.c. overhead line system (Sunderland Metro Systems Operating Area - Module Z). 

Purpose 

Compliance with this module will promote safe operation of the 25 kV a.c. electrification system and effective management of the interfaces between the Overhead Line Equipment (OLE) and distribution systems. 

NOTE: Further requirements for working on or about the electrified lines are contained in the Rule Book Module AC (GE/RT8000/AC) and Handbook HB16 (GE/RT8000/HB16).