Code Q&A

Code Q&A

How do you size the ground wire when running conductors in parallel?

Q. How do you size the ground wire when running conductors in parallel?

A. When circuit conductors are run in parallel [310.4], an equipment grounding conductor must be installed with each parallel conductor set and it must be sized in accordance with Table 250.122, based on the rating of the circuit overcurrent device [250.122(F)].

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