When installing a rigid metal conduit that serves as a service mast, the hub installed as part of this system shall be __________. A. approved B. galvanized C. listed D. identified for use with service-entrance equipment Find the Answer Answer: D As noted in Sec. 230.28(A) of the 2014 NEC, “The service mast shall be of adequate strength or be supported by braces or guys to withstand safely the strain imposed by the service-drop or overhead service conductors. Hubs intended for use ...

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