View all text of Subpart 111.30 [§ 111.30-1 - § 111.30-29]
§ 111.30-19 - Buses and wiring.
(a) General. Each bus must meet the requirements of either—
(1) Section 5.10 of IEEE 45.7-2012 (incorporated by reference; see § 110.10-1 of this subchapter); or
(2) IEC 60092-302:1997 (clause 7) (incorporated by reference; see § 110.10-1 of this subchapter).
(b) Wiring. Instrumentation and control wiring must be—
(1) Suitable for installation within in a switchboard enclosure and be rated at 90 °C or higher;
(2) Stranded copper;
(3) No. 14 AWG (2.10 mm 2) or larger or must be ribbon cable or similar conductor size cable recommended for use in low-power instrumentation, monitoring, or control circuits by the equipment manufacturer;
(4) Flame-retardant meeting test VW-1 of ANSI/UL 2556 or IEC 60332-1-1:2015 and IEC 60332-1-2:2015 (all incorporated by reference; see § 110.10-1 of this subchapter); and
(5) Extra flexible, if used on a hinged panel.