Chapter 2. AMENDMENTS TO NATIONAL ELECTRICAL CODE, 2014 EDITION

ARTICLE 100: DEFINITIONS - Amendatory

Article 100 of the National Electrical Code, 2014 Edition (NFPA 70-2014) is adopted as published, provided that the following definitions in Article 100 are added to read as follows:

Bracketing - Added. The installation of open wires, supported by metal or wood brackets, along or across the exterior of buildings.

Nationally Recognized Testing Laboratory - Added. A testing facility given this designation from the United States Occupational Safety and Health Administration (OSHA) that provides product safety testing and certification services to manufacturers.

110.12 (B) Integrity of Electrical Equipment and Connections - Amendatory. Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and other surfaces, shall not be damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives, or corrosive residues. There shall be no damaged parts that may adversely affect safe operation or mechanical strength of the equipment such as parts that are broken; bent; cut; or deteriorated by corrosion, chemical action or overheating. Damaged materials, equipment, appliances, and devices shall not be reused unless such elements have been reconditioned, tested, and placed in good and proper working condition and approved by a nationally recognized testing laboratory, or by the manufacturer of the equipment. Electrical equipment damaged by natural or man-made events shall be reused only as recommended by the manufacturer of such equipment.

210.19 (A) (4) Other Loads - Amendatory. Branch-circuit conductors that supply loads other than those specified in 210.2 and other than cooking appliances as covered in 210.19 (A)(3) shall have an ampacity sufficient for the loads served and shall not be smaller than 14 AWG. 20 ampere general-purpose branch circuits for dwellings shall supply a maximum of 10 outlets, 15 ampere general-purpose branch circuits for dwellings shall supply a maximum of 8 outlets. 20 ampere general-purpose branch circuits for other than dwellings shall supply a maximum of 8 outlets.

210.22.1 Permanent Labels - Added. Permanent labels shall be installed to indicate the address or location served by individual meters for multi-occupancy buildings. The permanent labels shall be embossed or engraved plaques, screwed or riveted to the service disconnect.

215.12.1 Color Coding; Identification of Ungrounded Conductors - Added. Where more than one nominal voltage system exists in a building, each ungrounded system conductor shall be identified by phase and system as follows:

Other colors shall be used for special applications, such as travelers, etc.

220.0 Load Calculations - Added. Where an addition or alteration is made to an existing electrical system, an electrical load calculation shall be prepared to determine if the existing electrical service has the capacity to serve the added load, and the calculation shall be made available to the code official upon request.

230.24.1 Bracketing Prohibited - Added. There shall be no bracketing of wires to the exterior of buildings. Weather heads shall be so located that bracketing will not be necessary. This provision shall not apply to wires belonging to public utility companies providing service to existing buildings.

230.26.1 Point of Attachment for Overhead Services - Added. The point of the overhead service entrance and attachment to the electric utility company's service wires on a building shall be a minimum of ten (10) feet above the ground.

Exception: For existing structures with overhead services, the point of attachment shall be not less than nine (9) feet above the ground. Clearances shall be provided as required by the National Electrical Code.

230.28.1 Service Masts as Supports - Added. The minimum size of rigid metal conduit (RMC) shall be two (2) inch for services up to and including two hundred (200) amperes and two and one-half (2-1/2) inches for services over two hundred (200) amperes.

250.24.1 Ungrounded Systems. Construction of new ungrounded services shall require the written special permission of the code official.

358.12.1 Electrical Metallic Tubing (EMT) Uses Not Permitted - Added. EMT shall not be installed in concrete or underground.

505.7 (A) Implementation of Zone Classification System - Amendatory. Classification of areas, engineering and design, selection of equipment and wiring methods shall be performed by a Registered Professional Engineer with expertise in Hazardous (Classified) Locations and Zone Systems. The installation of equipment and wiring methods, and inspections shall be performed by qualified persons.

506.7 (A) Implementation of Zone Classification System - Amendatory. Classification of areas, engineering and design, selection of equipment and wiring methods shall be performed by a Registered Professional Engineer with expertise in Hazardous (Classified) Locations and Zone Systems. The installation of equipment and wiring methods, and inspections shall be performed by qualified persons.

680.23 (A)(4) Voltage Limitations - Amendatory. No luminaries shall operate above the low voltage contact limit as defined in Section 680.2.

680.23.1 Underwater Luminaire(s) (Lighting) - Added. All underwater lighting for swimming, wading, therapeutic, and decorative pools, fountains, hot tubs, and spas shall be supplied with not more than fourteen (14) volts. Where a plastic deck box is used, it shall be installed not less than two (2) feet away from the water's edge.

( Ord. No. 23397, § 1, 10-29-2015 )