Section 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;(3) No. 14 AWG (2.10 mm2) 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.CGD 94-108, 61 FR 28278, June 4, 1996, as amended at 62 FR 23908, May 1, 1997; USCG-2003-16630, 73 FR 65197 , Oct. 31, 2008; USCG-2013-0671, 78 FR 60153 , Sept. 30, 2013