mporterf
Member
- Location
- Athens, Da
I am working in an industrial facility where a new service panel has been set along with sub-panels and HVAC equipment. I have been asked to verify that the new service panel and all equipment has been properly grounded. They also want to know the acceptable ohm reading allowed by code for test sheets they will be creating. I think for lightning protection it is 25ohms but does the NEC have an acceptable limit?