NR NR/SIN/205 ISSUE 2 PDF

This SIN applies to all Overhead Line Equipment (OLE) on Network Rail controlled 25kV a.c electrified lines. This applies to both operational and non-operational OLE, for example training equipment and test facilities were used.

Purpose

The purpose of this Special Inspection Notice is to identify and replace all small core (16mm diameter) WT Henley Polymetric Insulators in tensioning arrangements which may increase the risk of functional failure resulting in a health and safety or operational incident.