2023 National Electrical Code Amendments

The NFPA 70 National Electrical Code/2023, prepared by the National Electrical Code Committee and acted on by the National Fire Protection Association, Inc., and the ICC International Building Code/2024, Appendix K, as published by the International Code Council Inc., together with the additions, insertions, deletions, and changes prescribed in this article, are hereby adopted by reference and is made a part of this article as if fully set forth herein as the standards, rules, and regulations for the design, construction, alteration, repair, use and maintenance of buildings and structural appurtenances in the city. (Ord. No. O-2025-04, § 1, 2-3-25)

Sec. 22-51. - Amendments.

The following sections or subsections of the NFPA 70 National Electrical Code/2017 are amended as indicated:

1. The additions, insertions, deletions, and changes set out in this section are hereby made to the NFPA 70 National Electrical Code/ 2023 and the ICC International Building Code/ 2024, Appendix K adopted in section 22-50.
2. Any reference in the electrical provisions to the "code official" shall mean the director of building and code enforcement of the city.
3. Any reference in the electrical provisions to the "name of jurisdiction" shall mean the City of Wheaton.
4. Any reference in the electrical provisions to the "authority having jurisdiction" shall mean the city manager or the city council, as prescribed by ordinance.
5. Any reference in the electrical provisions to the date or time at which the provisions of such code became applicable shall mean the adopted date, which shall be the effective date of the ordinance from which this article is derived, or as provided by law.
6. The following sections or subsections of the NFPA 70 National Electrical Code/ 2023 are amended as indicated:

Section 110.3. (D)-Dark Sky Compliant Residential Exterior Light Fixtures. All exterior lighting fixtures for new residential structures, constructed after November 21, 2022, shall be compliant with the International Dark Sky Association's ("IDA'') Dark Sky Fixture Seal of Approval program.

210.8 (F) Location. The ground-fault circuit-interrupter(s) required by this section shall be located in the same room as the receptacle(s) served.

210.52 (C)(2) Island and Peninsular Countertops Island and Peninsular Countertop spaces with a long dimension of 600mm (24 inches) or greater and a short dimension of 300mm (12 inches) or greater shall have at least one receptacle outlet.

1. Receptacles shall be installed in accordance with 210.52 (C)(3).
2. On island or peninsular countertops where the work surface is flat across its entire surface (no backsplashes, dividers, etc.), receptacles shall be permitted to be mounted not less than 12” below the countertop or work surface.
3. Receptacles mounted below a countertop or work surface shall not be located where the countertop or work surface extends more than 150mm (6 inches) beyond its support base.

Section 225.31 Disconnecting Means, (B) Location. The disconnecting means shall be installed on the outside of the building or structure served or where the conductors pass through the building or structure. The disconnecting means shall be at a readily accessible location nearest the point of entrance of the conductors. For purposes of this section, the requirements of 230.6 shall apply.

Section 230.70 General (Service equipment - Disconnecting means), (A) Location, (I) Readily accessible location.

The service disconnecting means shall be installed at a readily accessible location outside of a building or structure and be an integral part of the metering equipment. Exception: In other than one- and two-family dwellings:

1. The main disconnecting means can be in a mechanical/electrical room with exterior access provided that the electrical room has one-hour rated construction; or,
2. The main disconnecting means can be in a mechanical/electrical room with interior access of not more than 20 feet travel distance provided that the room and access travel has one-hour rated construction.

Section 310.3 Conductors, (B) Conductor material.

1. Sizes #8 AWG, #10 AWG, and #12 AWG in aluminum and aluminum-clad copper shall not be permitted.

Section 334.10 Uses permitted (Non-metallic sheathed cable: Types NM, NMC, and NMS). Type NM, Type NMC, and type NMS cables shall be permitted to be used only for temporary wiring in accordance with Article 590, Temporary installations of this code in the following:

• Section 340.10 Uses permitted (Underground feeder and branch-circuit cable: Type UF), Item (3). For use only as temporary wiring in interior wiring in accordance with Article 590, Temporary installations of this code.

Section 362.10 Uses permitted (Electrical nonmetallic tubing: Type ENT). For the purpose of this article, the first floor of a building shall be that floor that has 50 percent or more of exterior wall surface level with or above finished grade. One additional level that is the first level and not designed for human habitation and used only for vehicle parking, storage, or similar use shall be permitted. The use of ENT and fittings shall be limited to use as a chase or raceway only for conductors listed for use in articles 335, 724, 725, 760, 770, 800, 810, 820, 830, and 840 in the following:

• Section 394.10 Uses permitted (Concealed knob-and-tube wiring), Item (1). Only for repair of existing systems.

Section 680.11 Underground Wiring Locations. Underground wiring shall not be installed under or within the area extending 5 feet horizontally from the inside walls of the pools and outdoor hot tubs and spas except where wiring is installed to supply pools, spas, or hot tub equipment. Underground wiring shall be installed in rigid metal conduit, intermediate metal conduit rigid polyvinyl chloride conduit, reinforced thermosetting resin conduit, or Jacketed Type MC cable that is listed for burial use. The minimum cover depth shall be in accordance with Table 300.5.

2/26/2025