U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 28, 2020
(a) Wire must be in an enclosure.
(b) Wire must be component insulated.
(c) Wire, other than in switchboards, must meet the requirements in sections 24.6.7 and 24.8 of IEEE 45-2002, NPFC MIL-W-76D, UL 44, UL 83 (all four standards incorporated by reference; see 46 CFR 110.10-1), or equivalent standard.
(d) Switchboard wire must meet subpart 111.30 of this part.
(e) Wire must be of the copper stranded type.