NR/L3/ELP/27122
Loss of High Voltage Supply To, or the Tripping Of, a High Voltage Circuit Breaker for No Known Reason in a Substation Building Containing Metal Clad Switchgear with Bitumastic Compound Filled Busbar Chambers
Organization: | NR |
Publication Date: | 1 June 2008 |
Status: | active |
Page Count: | 5 |
scope:
General
This instruction applies to switchgear operating at 11kV and above. If the High Voltage (HV) supply is lost or a HV circuit breaker operates for no known reason in a building equipped with Metal Clad Switchgear with Bitumastic Compound Filled Busbar Chambers and staff are present at that location, the following instructions shall be carried out. A list of Substations where this instruction is applicable shall be produced within each Maintenance Delivery Unit by Maintenance Engineer (E&P) or representative and made available in the appropriate Electrical Control Room Instructions.
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