Junction Box
Junction Box
(OP)
If we put a terminal block in an enclosure, for example universal-enclosure of Schneider, then do we need to consider the short circuit rating of only of the terminal blocks, or short circuit rating of enclosures as well?






RE: Junction Box
"Standard for Electrical Safety in the Workplace". According to NEC the non energized metallic parts have to be grounded [see Art.250-122].The requirement for short-circuit test is for boxes containing fuses or breakers as switchgear or MCC and other.
RE: Junction Box
Why is it that the arc flash study is required for 480V MCC/switchgear, but is not required for a 480V panelboard?