Five 10 AWG THHN/THWN copper conductors are installed in a conduit in an area where the summertime temperature is 138ºF. What is the maximum size OCP permitted to protect the conductors in the conduit?

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Five 10 AWG THHN/THWN copper conductors are installed in a conduit in an area where the summertime temperature is 138ºF. What is the maximum size OCP permitted to protect the conductors in the conduit?

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