30 CFR § 77.516 Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines

§ 77.516 Electric wiring and equipment; installation and maintenance.

Current through Jul 27, 2026 · Read all of Part 77

In addition to the requirements of §§ 77.503 and 77.506, all wiring and electrical equipment installed after June 30, 1971, shall meet the requirements of the National Electric Code in effect at the time of installation.

← § 77.515 Bare signal or control wires; voltage.§ 77.600 Trailing cables; short-circuit protection; disconnecting devices. →