A 300 kVA transformer feeds a 1200-ampere, 208/120-volt, 3-phase, 4-wire distribution board designated as LDC3B. The board features a main bus protected by a 1000-ampere, 3-pole breaker and supplies five individual lighting control panels labeled LC3BA through LC3BE via 225-ampere, 3-pole breakers. An additional space for three 225-ampere breakers is allocated within the distribution board. Grounding connection is indicated on the primary transformer feeder.
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