Specification for high-voltage alternating current circuit-breakers. Guide for seismic qualification of high-voltage alternating current circuit-breakers Ingestion-build-135476 or security personnel patrolling a

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Specification for high-voltage alternating current circuit-breakers. Guide for seismic qualification of high-voltage alternating current circuit-breakers Ingestion-build-135476 or security personnel patrolling aWhat is BS EN 61166 High voltage alternating current circuit breakers about? BS EN 61166 applies only to ground mounted high voltage (HV) circuit breakers, the supporting structures of which are rigidly connected with the ground, and does not cover the seismic qualification of circuit breakers in metal enclosed switchgear. BS EN 61166 is a guide providing procedures to seismically qualify HV alternating current ground mounted circuit breakers. Who is