scope:

Introduction

This Instruction covers the maintenance procedure for all Single to Three Phase Converter installations associated with Signalling Supplies. 

Before any work which may affect traffic operations is carried out, arrangements must be made by the Area Electrification Engineer's representative with the Signal Engineer's (Signalling) representative for initiating and carrying out the work.

The Electric Control Operator and Area Operating Control, Regulator or signalman must be advised both at the commencement of any work detailed in this document and on its completion, by the person responsible for carrying out the work.

Whenever possible, maintenance of associated equipment shall be carried out concurrently.

All safety precautions must be observed. 

Defects found during the course of the work, whether within the scope of this order or not, must be immediately dealt with as may be appropriate. 

Reference should be made to the appropriate manufacturer's Instruction and Spare Manuals, when further detailed information is required.

All details of inspection, repairs, etc., to be recorded in the station Log Book.

After completion of maintenance, all locks, keys and tools shall be returned, clean, to their proper places.