An enclosure consisting of buss-bars and circuit breakers located at the service entrance to a building B. An enclosure consisting of buss-bars and circuit breakers with the fundamental purpose of distributing power to receptacles and the load
B.
An enclosure consisting of buss-bars and circuit breakers designed to accept two sources of power and operate as a best source selector
C.
An enclosure consisting of buss-bars and draw-out circuit breakers with the fundamental purpose of distributing power to branch distribution panels
The Answer Is:
B
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