czarstoo

[czarstoo]

What is the requirement or the rationale for the grounding conductor in SER cable being 2 sizes smaller than the current conducting conductors?

 

[charlie]

Re: czarstoo

This is from the UL White Book SERVICE ENTRANCE CABLE (TYLZ)

Based upon tests which have been made involving the maximum heating that can be produced, an uninsulated conductor employed in a service cable assembly is considered to have the same current-carrying capacity as the insulated conductors even though it may be smaller in size.