Electrical

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Q1. MAIN SWITCH BOARD (MSB) SAFETIES ????


Electrical safeties:

 Dead front type switchboard, Fuses, Relays, Circuit breakers, Earth fault indicators, Under voltage

relay, Reverse power trip, Preferential trip, Over current trip, Short circuit trip, Arc chute, Ebonite Rod ( to remove static charge).

General safeties:

 Insulated hand gloves, dry boiler suits, shoes without metallic part, Rubber pad in front of

switchboard, 0.6m gap behind switchboard, Panel doors to be earthed, interlocked handles for

opening doors.

 No water, oil, or steam pipeline in its vicinity.