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Thread: NEC 610.14(A) Ampacity for Crane Feeders

  1. #1
    Join Date
    Jan 2018

    NEC 610.14(A) Ampacity for Crane Feeders

    How would i figure out the equivalent short-time aluminum ampacities for crane feeders. Table 610.14(A) only lists ampacities for copper. Or does this imply that I cannot use aluminum for feeders to cranes?

  2. #2
    Join Date
    Feb 2018
    Manteca Ca USA

    Ampacity for Aluminum Feeders

    Article 100 explains...

    110.5 Conductors.Conductors normally used to carry current shall be of copper unless otherwise provided in this Code. Where the conductor material is not specified, the material and the sizes given in this Code shall apply to copper conductors. Where other materials are used, the size shall be changed accordingly.

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