Regulations last checked for updates: Oct 19, 2024

Title 30 - Mineral Resources last revised: Oct 03, 2024
All TitlesTitle 30Chapter IPart 77Subpart F - Subpart F—Electrical Equipment—General
View all text of Subpart F [§ 77.500 - § 77.516]
§ 77.503 - Electric conductors; capacity and insulation.

Electric conductors shall be sufficient in size and have adequate current carrying capacity and be of such construction that a rise in temperature resulting from normal operation will not damage the insulating materials.

authority: 30 U.S.C. 811.
source: 36 FR 9364, May 22, 1971, unless otherwise noted.
cite as: 30 CFR 77.503
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