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Monday, December 14, 2020
Question:
Hello CQD, How far from an explosion-proof switch in Class I, Division 1 location can the required sealing fitting be? There is only one 1/2-inch rigid conduit entering the switch enclosure on the top.
Mike Durant
A
Answer:
Good Day Mike,
Thanks for the question. Based on the information provided, the sealing fitting must be installed not more than 18 inches from the enclosure containing the switch. See NEC Section 501.15(A)(1).