scope:

Introduction

These safety rules are for the protection of any persons working on or testing LV equipment within UK Power Networks Services Powerlink, except in the Greenwich Generating station where local safety rules apply.

These safety rules apply to all LV equipment capable of being made live by change of isolation, switching or standard operating procedures, they need not apply to normal routine work on SCADA system, pilot cables, lighting circuits, office equipment including computers, portable tools and domestic appliances. Work of this nature shall be carried out by suitably competent persons in accordance with approved safe systems of work.

Where work is carried out on circuits that are live at a dangerous energy level or dangerous potential, i.e. greater than 50V AC or 120V DC whether between conductors or to earth, additional precautions shall be taken.

These safety rules form part of Powerlink's Management System, in which all the requirements for compliance with health and safety legislation can be referenced.

It is the duty of all those concerned to understand the rules governing any work or testing they may have to do and they will be held responsible for knowing and obeying them.

Whenever there is an incident involving the application of these safety rules, the LV licences of all persons involved shall be withdrawn, without prejudice, until investigations have established that each person can continue working safely to the safety rules.

Should any person be in doubt as to the correct interpretation of these rules or as to the correct procedure to follow in order to avoid danger, they must ask their immediate supervisor or the Shift Supply Engineer for instructions.

Procedures have been written covering the methods by which these rules shall be actioned and compliance with those procedures is mandatory.