scope:

This module states the requirements when using voltage testing devices, portable earthing equipment and temporary continuity jumpers on Overhead Line Equipment.

The requirements for assembly, maintenance and care of voltage testing devices, portable earthing equipment and temporary continuity jumpers are stated in Network Rail standard NR/L3/ELP/27237.

It is applicable to Network Rail personnel and to Network Rail's contractors.

To provide a consistent approach to working on or about Overhead Line Equipment, Train Operating Companies may, as best practice, apply this standard in full on infrastructure they control.

This Standard 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

This module provides a consistent approach to using voltage testing devices, portable earthing equipment and temporary continuity jumpers on Overhead Line Equipment.

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)).