ENA TS 41-15 PT5 : ISSUE 2 1988
Current
Current
The latest, up-to-date edition.
Specifies the d.c. intertripping circuits to be used at 132 kV stations which use voice frequency signalling over communication circuits, including British Telecom private wire circuits. In the case of teed circuits it gives the arrangements for cascade intertripping at any end.
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