§ 75.701-4. Grounding wires; capacity of wires.
87 words·~1 min read·
/us/cfr/t30/s§ 75.701-4·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Where grounding wires are used to ground metallic sheaths, armors, conduits, frames, casings, and other metallic enclosures, such grounding wires will be approved if:
(a)The cross-sectional area
(size)of the grounding wire is at least one-half the cross-sectional area
(size)of the power conductor where the power conductor used is No. 6 A.W.G., or larger.
(b)Where the power conductor used is less than No. 6 A.W.G., the cross-sectional area
(size)of the grounding wire is equal to the cross-sectional area
(size)of the power conductor.