scope:

This module states the requirements for the advance planning of isolations for the purpose of carrying out work in order to produce a coherent technically compliant isolation plan for a particular week and route on 25 kV a.c. electrified lines. It is applicable to Network Rail personnel and to Network Rail's contractors.

It is also applicable in relevant part to Train Operating Companies having locally controlled 25 kV a.c. overhead lines which abut those controlled by Network Rail.

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 in full on infrastructure they control.

Purpose

This module will produce a consistent approach to planning isolations on 25 kV a.c. electrified lines and preparing coherent technically compliant isolation plans. Further requirements for working on or about the electrified lines are contained in the Rule Book Module AC (GE/RT8000/AC).