The wiring methods for feeders supplying pools and similar installations were changed into a reasonable requirement. (A) Wiring Methods. Where feeder wiring is installed in corrosive environments as described in Sec. 680.14, the wiring methods must comply with 680.14(B) or be liquidtight flexible nonmetallic conduit. The wiring methods must contain an insulated copper equipment grounding conductor sized in accordance with Sec. 250.122, based on the rating of the overcurrent protection ...

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