N.M. Admin. Code § 14.10.4.11

Current through Register Vol. 35, No. 21, November 5, 2024

Section 14.10.4.11 - CHAPTER 1 GENERAL

A.Article 100 - Definitions. See this article of the NEC.

B.Article 110 - Requirements for electrical installations. See this article of the NEC except as provided below.

(1)Section 110.2 Approval. See this section of the NEC and add the following:

(a) product listing and labeling - electrical wiring, equipment or material approval shall be based on listing and labeling by a nationally recognized testing laboratory recognized by the federal occupational safety and health administration;

(b) field evaluation - electrical wiring, equipment or material that is not listed and labeled, but for which a (UL) safety standard exists may be approved upon certification by a nationally recognized testing laboratory recognized by the federal occupational safety and health administration or by a field evaluation body accredited by the international accreditation service, inc.;

(c) engineer certification - electrical wiring, equipment or material for which a (UL) safety standard does not exist may be approved upon certification by an electrical engineer licensed to practice in New Mexico; such a certification will not be valid unless based on a verification of the manufacturer's safety and performance test data for the product.

(d) engineer certification - electrical equipment assemblies that contain only nationally recognized testing laboratories (NRTL) labeled components that are not NRTL listed as an assembly may be approved upon certification by an electrical engineer licensed to practice in New Mexico; such a certification will not be valid unless based on a verification of the UL standard if applicable, NEC 110.3 and the manufacturer's safety and performance test data for the product.

(2)Section 110.21 Marking. See this section of the NEC except as provided below:

Section 110.21(A) Equipment markings. See this section of the NEC except as provided below. Section 110.21(A)(1) General. See this section of the NEC and add the following: all equipment used on circuits over 300 volts between conductors shall have a warning sign either on or adjacent to the equipment. Warning signs shall be made in accordance with ANSI Z535 environmental and safety signs. The language shall read:

(a) for voltages over 300 volts but less than 600 volts: "480 VOLTS". (Label dimensions shall be 1" x 4"); and

(b) for voltages over 600 volts and there are exposed parts: "DANGER - HIGH VOLTAGE - KEEP OUT".

(3)Section 110.26 Spaces about electrical equipment.

(a)110.26 (A) Working space. See this section of the NEC and add the following exception: Disconnects that do not provide over-current, overload, short circuit, or ground fault protection are not required to maintain the dimensions of 110.26(A)(1), (A)(2) and (A)(3) where adequate space is not readily available and the disconnect is permanently labeled "INADEQUATE WORKING SPACE-DO NOT WORK ON WHILE ENERGIZED". The label shall be readily visible on the exterior of the disconnect.

(b)110.26 (A)(3) Height of working space. See this section of the NEC and add the following exception: Exception No. 4: In underground water well pump enclosures, service equipment or panel boards that do not exceed 200 amperes, operating at 250 volts or less and only feeding equipment associated with the water well enclosure, shall be permitted in spaces where the headroom is less than six and one half feet (6 1/2 ft.) but greater than five feet (5 ft.) provided the enclosure is supplied with a removable lid, that when removed would allow a minimum of six and one half feet (6 1/2 ft.) headroom.

N.M. Admin. Code § 14.10.4.11

14.10.4.11 NMAC - Rp, 14.10.4.11 NMAC, 6-28-13; A, 8-01-14, Amended by New Mexico Register, Volume XXVIII, Issue 23, December 12, 2017, eff. 2/1/2018, Adopted by New Mexico Register, Volume XXXIV, Issue 04, February 28, 2023, eff. 3/28/2023