An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module...

Vendor: NABCEP
Product: PVIP
Update on: Oct 16, 2025
Questions: 160

NABCEP PVIP Question Answer

An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module mounting structure of a commercial rooftop solar array. After a few years of operation, some spots on the EGCbegin to turn a green color and appear to be corroding more significantly that other places. What would the MOST likely cause of the problem?

Nyton wire ties in contact with the copper wire

A break in the EGC, leaving the array ungrounded

Bypass dlode failures inducing current on the EGC

Array racking touching the EGC at multiple points