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1,000 A Service: Transformer to Switchgear with Three Parallel Sets per Phase

A 1000 kVA, 34.5 kV to 480Y/277 V pad-mounted transformer feeding 1000 A main switchgear through nine 5 in. nonmetallic raceways, three per phase, each with 400 kcmil copper at 335 A, with a conduit schedule and trench section.

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