Which 50V To 100v Alternating Current Systems Are Not Required To Be Grounded?
Which 50V To 100v Alternating Current Systems Are Not Required To Be Grounded? 250. Section 250.21 focuses on alternating-current systems of 50V to less than 1,000V that are not required to be grounded. As outlined in 250.21(A) and (B), ground detectors are required for these systems and they shall be connected as close as practicable