New Mexico Administrative Code
Title 14 - HOUSING AND CONSTRUCTION
Chapter 10 - ELECTRICAL CODES
Part 4 - 2020 NEW MEXICO ELECTRICAL CODE
Section 14.10.4.13 - CHAPTER 3 WIRING METHODS AND MATERIALS

Universal Citation: 14 NM Admin Code 14.10.4.13

Current through Register Vol. 35, No. 18, September 24, 2024

A. Article 300. General requirements for wiring methods and materials. See this article of the NEC except as provided below.

(1) Section 300.6 Protection against corrosion and deterioration. See this section of the NEC except as provided below. Section 300.6 (A) Ferrous metal equipment. Delete the first sentence of this section and substitute the following language: All ferrous metal raceways, cable trays, cablebus, auxiliary gutters, cable armor, boxes, cable sheathing, cabinets, metal elbows, couplings, nipples, fittings, supports, and support hardware shall be suitably protected against corrosion inside and outside (except threads at joints) by a coating of approved corrosion-resistant material.

(2) Section 300.11 Securing and supporting. See this section of the NEC except as provided below.
(a) Section 300.11(A) Secured in place. See this section of the NEC and add: independent support wires shall be limited to support of flexible wiring methods from the last means of support or junction box for connections within an accessible ceiling to luminaire(s) or equipment served.

(b) Section 300.11 (B) (1). Fire rated assemblies. Delete the text of this section of the NEC and substitute: the ceiling support system shall be permitted to support listed junction boxes and/or support brackets that have been tested as part of a fire-rated assembly.

(c) Section 300.11 (B) (2). Non-fire rated assemblies. Delete the text of the exception and substitute: the ceiling support system shall be permitted to support listed junction boxes and/or support brackets where installed in accordance with the ceiling system manufacturer's instructions.

(3) Section 300.14 Length of free conductors at outlets, junctions, and switch points. Delete the text of this section of the NEC and substitute: at least six (6) inches of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, shall be left at each outlet, junction, and switch point for splices or the connection of luminaire (fixtures) or devices. Where the opening of an outlet, junction, or switch point is less than eight (8) inches in any dimension, each conductor shall be long enough to extend at least six (6) inches outside of the opening.

B. Article 310. Conductors for general wiring. See this article of the NEC except as provided below. Section 310.3 Conductors. See this section of the NEC except as provided below. Section 310.3 (B) Conductor material. See this section of the NEC and add the following subsection 310.3 (B)(1) The use of aluminum current carrying conductors shall be of the AA-8000 series or equivalent and shall be limited to size 8 AWG or larger. Exception: the equipment-grounding conductor shall be limited to size 10 AWG or larger if in a listed cable assembly.

C. Article 314. Outlet, device, pull, and junction boxes; conduit bodies; fittings; and handhole enclosures. See this article of the NEC except as provided below. Section 314.27 Outlet Boxes. See this section of the NEC except as provided below. Section 314.27 (C) Boxes at ceiling-suspended (paddle) fan outlets. See this section of the NEC except add the following exception to the end of the section:

Exception No. 1 Fan boxes in habitable rooms shall not be required over islands, peninsulas, or above kitchen sinks.

D. Article 340. Underground feeder and branch circuit cable: type UF. See this article of the NEC except as provided below. Section 340.10 Part II. Installation See this section of the NEC except as provided below: Section 340.10 Uses permitted. See this section of the NEC and add the following new subsections:

(1) (7) type UF cable shall be permitted to be embedded in adobe construction;

(2) (8) type UF cable, or an approved electrical raceway shall be installed on straw bale residential construction.

E. Article 352 Rigid polyvinyl chloride conduit: Type PVC. See this article of the NEC and add the following to section 352.10 uses permitted. (F) Exposed: PVC conduit, type schedule 40 shall not be used where the raceway is exposed and under eight (8) feet from finished floor or grade.

F. Article 394 Concealed knob and tube wiring. See this article of the NEC and add the following to section 394.12 uses not permitted: concealed knob and tube wiring shall not be permitted to be installed except by special written permission from the electrical bureau.

Disclaimer: These regulations may not be the most recent version. New Mexico may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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