scope:

This specification applies to all new earthing systems installed on the D.C. Electrified Lines.

Purpose

This specification states the requirements for the design, manufacture, installation and testing of equipotential bonding of equipment and earth electrode systems for d.c. traction substations, track paralleling huts and similar equipment locations (except for metal enclosures around controlled track switches).

The document is to be read in conjunction with the relevant procurement specification.