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Friday, May 10, 2019
Question:
I inherited some panels that have 6-4 SOW 90c cable for 480v 60 amp drops it looks like they referred to Art 400.5 (A) (2) three current carrying conductors. Do I need to address this issue and switch out cables?
Geoffrey Overley
A
Answer:
Hey Geoffrey thanks for your question. I'm not sure what you mean by "panels that have cable drops". Flexible cords are allowed to be used for pendants as stated in 400.10(A). Type SOW flexible cord is actually in Table 400.5(A)(1) but the ampacity of 6 AWG with 3 current carrying conductors is 45 in Column A. Size 4 AWG has an ampacity of 60 amperes so yes it seems you need to replace the flexible cords.