Answer: 18 in. or as required by the enclosure marking. Explanation: : According to Sec. 501.15(A)(1), "Conduit seals shall be installed within 18 in. from the ...
A. Seals for raceway and cable systems must comply with Sec. 501.15(A) through (F) [Sec. 501.15]. Note 1: Raceway and cable seals must be installed to: Minimize the passage of gases and vapors from ...
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