§ 77.906. Trailing cables supplying power to low-voltage mobile equipment; ground wires and ground check wires.
84 words·~1 min read·
/us/cfr/t30/s§ 77.906·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
On and after September 30, 1971, all trailing cables supplying power to portable or mobile equipment from low-voltage three-phase resistance grounded power systems shall contain one or more ground conductors having a cross-sectional area of not less than one-half the power conductor. Such trailing cables shall include an insulated conductor for the ground continuity check circuit except where a no less effective device has been approved by the Secretary to assure continuity. Splices made in low-voltage trailing cables shall provide continuity of all components.