Electrical · E-K454D

Main Emergency Electrical Room

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A 400A, 480Y/277V, 3-phase, 4-wire, 42KAIC panelboard designated as SWB1208SPG supplies passenger boarding bridge and pre-conditioned water/air power. The panel features a 400AF/400AT 3-pole main breaker feeding multiple circuits routed in 1-inch conduits containing three #6 conductors and one #10 ground wire. Circuits 1 through 7 supply individual jet bridge and pre-conditioned water/air units with full load amperage rated at 45A, utilizing 60AT/100AF 3-pole circuit breakers. Circuits 8 and 9 are equipped with 225AT/225AF 3-pole breakers, alongside designated spare and space allocations.

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