Electrical equipment permanently mounted on skids, and the skids themselves, shall be connected to the equipment grounding conductor sized as required by _____.
a) Section 250.50
b) Section 250.66
c) Section 250.122
d) Section 310.15
See answer and applicable Code reference
The correct answer is: c) Section 250.122
Section 250.112 of the 2011 NEC outlines the bonding and grounding requirements for equipment fastened in place or connected by by permanent wiring methods. As noted in 250.112(K), "permanently mounted electrical equipment and skids shall be connected to the equipment grounding conductor sized as required by 250.122."
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