Electrical · S-TR7HZ

UPS Grounding Detail

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An uninterruptible power supply enclosure houses input, output, and grounding terminals for the rectifier input, static bypass input, and system output lines. A case ground bond connects to the electrical equipment grounding system via a number four-ought copper conductor run in a one-inch PVC conduit from the ground bus to the nearest ground rod or counterpoise conductor. The neutral terminal is left unconnected if provided. The contractor provides a ground bus with lugs appropriate for the specified conductor unless noted otherwise.

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