The maximum ampere rating of a 4 in. x ½ in. copper busbar 4 ft long and installed in an auxiliary gutter is _____.
See answer and applicable Code reference
The correct answer is: d) 2,000A
Article 366 covers the use, installation, and construction requirements of auxiliary gutters and associated fittings. As noted in 366.23(A), "Where the number of current-carrying conductors contained in the sheet