An outdoor bus duct rated at 4000 amperes, 277/480 volts, three-phase, four-wire with housing ground and 100 percent neutral requires coordinate all requirements with PG&E prior to installation. A 106-inch by 90-inch transformer pad is provided and coordinates with the PG&E service planner. Underground conduits consist of two five-inch conduits with conductors, with exact electrical requirements to be confirmed with PG&E prior to rough-in with no exceptions.
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