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Code · CFR · Title 30 — Mineral Resources · Part 77 · § 77.804

§ 77.804. High-voltage trailing cables; minimum design requirements.

100 words·~1 min read·/us/cfr/t30/s§ 77.804·

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(a)High-voltage trailing cables used in resistance grounded systems shall be equipped with metallic shields around each power conductor with one or more ground conductors having a total cross-sectional area of not less than one-half the power conductor, and with an insulated conductor for the ground continuity check circuit. External ground check conductors may be used if they are not smaller than No. 8
(AWG)and have an insulation rated at least 600 volts.
(b)All such high-voltage trailing cables shall be adequate for the intended current and voltage. Splices made in such cables shall provide continuity of all components.
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