U.S Code last checked for updates: Nov 22, 2024
§ 869.
Underground low- and medium-voltage alternating current circuits
(a)
Circuits providing power for three-phase equipment; circuit breakers
(b)
Circuits used underground; direct neutral grounds; ground conductors for frames; exceptions; grounding resistors
(c)
Inclusion of fail safe ground check circuits in resistance ground systems; operative functions; time extension; couplers for power circuits; guidelines for construction
(d)
Disconnecting devices installed in conjunction with circuit breakers; purpose; trailing cables for mobile equipment; guidelines for construction; time extension; splices
(e)
Connections of single phase loads
(f)
Circuit breakers; markings
(g)
Trailing cables for medium voltage circuits; guidelines for construction
(Pub. L. 91–173, title III, § 309, Dec. 30, 1969, 83 Stat. 782.)
cite as: 30 USC 869