scope:

This standard applies to all persons responsible for the tasks of overhaul specification, procurement and execution, and to those responsible for the end use of overhauled signalling equipment.

Signalling equipment whose performance is affected over time by wear or other forms of degradation, may in appropriate cases (as determined by the Equipment Design Custodian on behalf of the Chief Engineer) be overhauled by a contractor who is able to provide satisfactory evidence of competence in relation to the type of equipment concerned.

The performance requirements for the equipment and its critical components shall be specified by the Equipment Design Custodian. In doing so, the Equipment Design Custodian shall consult with the Application Design Authority for the signalling installation in which the equipment will be used, to ensure that the critical application requirements are correctly reflected in the equipment performance requirements.

The detailed processes for carrying out the overhaul shall generally be devised by the contractor.

Both the Equipment Design Custodian and the overhauling contractor shall be responsible for identifying the risks which are relevant to their areas of responsibility, and for incorporating appropriate safeguards, to the satisfaction of the Professional Head of Signalling.

Nothing in this standard shall prohibit technical discussions between any of the parties involved, but an LU contract manager shall be specified as the single point of contact between LU and the overhauling contractor to be responsible for matters of contractual agreement.

This standard replaces 1-202 A1. The Standard has been re-formatted and renumbered. There were no technical changes.

Purpose

The purpose of this standard is to define the principles by which the overhaul of signalling equipment shall be specified and managed. It shall apply to all equipment taken into use, both as maintenance replacements for existing assets and for 'new works'.