would 250-86 exception 3 apply that states a metal elbow underground in a nonmetallic run that is isolated and 18 inches below ground shall not be required to be grounded.250-84 is service but than 250-86 is other conductor enclosures and raceways.i posted this in the wrong topic. can the moderator move it to the gec topic
[This message has been edited by dannynova (edited 12-17-2005).]
