M makena Member Jul 27, 2007 #1 When looking for a ground on the roof-building interior, it can be challenging. What are all the acceptible grounds for this type of application?
When looking for a ground on the roof-building interior, it can be challenging. What are all the acceptible grounds for this type of application?
don_resqcapt19 Moderator Staff member Location Illinois Occupation retired electrician Jul 27, 2007 #2 Take a look at 810.21(F).
