4 HOUR 2008 NEC CODE CHANGES PRESENTED BY THE ELECTRICAL TRAINING CENTER IN-SERVICE TRAINING #49-5880 Article 100, Entire Code • Grounding and bonding terms have been redefined and simplified for clarity and improved usability. • • • • • • • • Bonded (Bonding) – Revised Ground – Revised Grounded (Grounding) – Revised Grounded, Effectively – Deleted Grounding Conductor, Equipment (EGC) – Revised Grounding Electrode – Revised Grounding Electrode Conductor – Revised Ungrounded – New 4/13/2015 Photo: IAEI Archives 4/13/2015 Photo: IAEI Archives 4/13/2015 Article 100 – Ground • Ground. The earth. • The term ground has been revised and simplified for clarity and improved usability. 4/13/2015 Article 100 – Ground The earth 4/13/2015 Article 100 Grounding Electrode • Grounding Electrode. A conducting object through which a direct connection to earth is established. 4/13/2015 Photo: IAEI Archives Article 100 – Kitchen • New definition of the term kitchen has been added to Article 100. • Kitchen. An area with a sink and permanent facilities for food preparation and cooking. • A sink and permanent provisions for food preparation and cooking are required for 4/13/2015 an area to qualify as a kitchen. Photo: IAEI Archives 110.12(A) Unused Openings • The words cable or raceway have been deleted to extend the requirements to all unused openings other than those necessary for operation of the equipment. • 110.12(A) Unused Openings. Unused openings, other than those intended for the operation of equipment, intended for mounting purposes, or permitted as part of the design for listed equipment shall be closed to afford protection substantially equivalent to the wall of the equipment. Where metallic plugs or plates are used with nonmetallic enclosures, they shall be recessed at least 6 mm (¼ in.) from the outer surface of the enclosure. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives Photo: IAEI Archives Chapter Two Wiring and Protection 4/13/2015 Photo: IAEI Archives 210.5(C) Ungrounded Conductors • Where a premises wiring system is supplied by more than one nominal voltage system, each branch circuit is required to be identified by phase or line and system. • This identification shall be used at all termination, connection, and splice points. • The means of identification is required to be permanently posted at each branch-circuit panelboard or similar branch-circuit distribution equipment. 4/13/2015 Photo: IAEI Archives Ground-fault circuit interrupter protection requirements apply to receptacles that are not readily accessible. Applies to dwelling unit garages and unfinished basements, and accessory buildings. 4/13/2015 210.8(B) Other Than Dwelling Units • All 125-volt, single-phase, 15- and 20-ampere receptacles installed in the locations specified in (1) through (5) shall have ground-fault circuit-interrupter protection for personnel. (1) Bathrooms (2) Kitchens (3) Rooftops (4) Outdoors See Code text for exceptions. 4/13/2015 Photo: IAEI Archives 210.8(B)(5) Sinks • Other than Dwelling Units • Receptacles installed within 1.8 m (6 ft) of the outside edge of a sink are required to be protected by groundfault circuit-interrupter protection. • Exception No. 2 to (5): For receptacles located in patient care areas of health care facilities other than those covered under 210.8(B)(1), GFCI protection shall not be required. 4/13/2015 Photo IAEI Archives 210.8(C) Boat Hoists • GFCI protection shall be provided for outlets not exceeding 240 volts that supply boat hoists installed in dwelling unit locations. 4/13/2015 Photo: IAEI Archives 210.12(B) Dwelling Units • Dwelling Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways , or similar rooms or areas shall be protected by a listed arc-fault circuit interrupter, combination-type, installed to provide protection of the branch circuit. 4/13/2015 Photo: IAEI Archives 240.24(B) Occupancy • The two exceptions have been rewritten into positive text and the section has been arranged to provide a more logical layout for improved clarity and application of the overcurrent device accessibility requirements. • When electric service is provided by and continuously supervised by building management personnel, the branch-circuit overcurrent devices supplying guest rooms or guest suites without permanent provisions for cooking shall be permitted to be accessible to only authorized management personnel. 4/13/2015 Photo: IAEI Archives Chapter Three Wiring Methods and Materials 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives Photo: IAEI Archives 4/13/2015 Photo: IAEI Archives 4/13/2015 4/13/2015 4/13/2015 330.10(A)(11) Uses Permitted • Type MC cable is permitted for use in wet locations where a corrosion-resistant jacket is provided over the metallic sheath. • c. The insulated conductors under the metallic covering are listed for wet locations and a corrosion-resistant jacket is provided over the metallic sheath. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives Photo: IAEI Archives Chapter Four Equipment for General Use 4/13/2015 Capable of Being Locked in the Open Position • The rules for required disconnecting means have been revised to address the specific characteristics of disconnects that are capable of being locked in the open position. • The provision for adding a lock is required to remain with the switch or circuit breaker whether the lock is installed or not. • The provision should be inherent to the equipment or be an accessory feature that is provided by the manufacturer for establishing the locking capability. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives Photo IAEI Archives 406.4(G) Voltage Between Adjacent Devices • A new subdivision (G) covering voltage between adjacent receptacles has been added to 406.4. • Where voltages between adjacent receptacles in ganged enclosures exceed 300, identified and securely fastened barriers are required between the devices. 4/13/2015 Photo: IAEI Archives 406.8(A) and (B)(1) Damp and Wet Locations • Standard nonlocking receptacles in 125- and 250-volt configurations are required to be listed weather-resistant type. • A new second sentence has been added in 406.8(A) and 406.8(B)(1) and a new FPN follows each section. • All nonlocking 15- and 20-ampere, 125- and 250-volt receptacles shall be listed weather-resistant type. 4/13/2015 Photo: IAEI Archives Courtesy of Pass & Seymour/Legrand 410.16 Luminaires in Clothes Closets • (A)(3) Surface-mounted fluorescent or LED luminaires identified as suitable for installation within the storage area. • (C)(1) 300 mm (12 in.) for surface-mounted incandescent or LED luminaires…or on the ceiling. • (C)(3) 150 mm (6 in.) for recessed incandescent or LED luminaires…or the ceiling. • (C)(5) Surface-mounted fluorescent or LED luminaires shall be permitted to be installed in the storage space where identified for this use. 4/13/2015 Listed LED luminaires suitable for installations in clothes closets. Photos: Courtesy Of Ardee Lighting 4/13/2015 410.30(B)(1) Handhole • (1) A pole shall have a handhole not less than 50 mm × 100 mm (2 in. × 4 in.) with a cover suitable for wet locations to provide access to the supply terminations within the pole or pole base. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives 4/13/2015 Photo: IAEI Archives Thomas and Betts Photo: IAEI Archives Photo: IAEI Archives 411.3 Listing Required • This section has been revised to include a subdivision (A) covering listed systems, and a subdivision (B) covering field assemblies using listed parts. • In (B) the luminaires, power supply, and luminaire fittings (including the exposed bare conductors) of an exposed bare conductor lighting system installation shall be listed for use as part of the same identified lighting system. 4/13/2015 Photo: IAEI Archives 422.52 Electric Drinking Fountains • Electric drinking fountains shall be protected with ground-fault circuitinterrupter protection. • Bottled water coolers are not affected by this rule. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives 480.5 Disconnecting Means • A disconnecting means shall be provided for all ungrounded conductors derived from a stationary battery system over 30 volts. • The disconnecting means shall be readily accessible and located within sight of the battery system. 4/13/2015 Photo: IAEI Archives Chapter Five Special Occupancies 4/13/2015 511.2 Major Repair Garage • A building or portions of a building where major repairs, such as engine overhauls, painting, body and fender work, and repairs that require draining of the motor vehicle fuel tank are performed on motor vehicles, including associated floor space used for offices, parking, or showrooms. 4/13/2015 511.2 Minor Repair Garage • A building or portions of a building used for lubrication, inspection, and minor automotive maintenance work, such as engine tune-ups, replacement of parts, fluid changes (e.g., oil, antifreeze, transmission fluid, brake fluid, air conditioning refrigerants), brake system repairs, tire rotation, and similar routine maintenance work, including associated floor space used for offices, parking, or showrooms. 4/13/2015 Photo: IAEI Archives 517.32(C)(3) Alarm and Alerting Systems • Section 517.32(C) has been revised to include a new list item (3) under alarm and alerting systems. • Mechanical, control, and other accessories, such as dampers and some motors, required for effective life safety shall be permitted to be supplied by the life safety branch. 4/13/2015 Photo: IAEI Archives Chapter Six Special Equipment 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives 620.21(A)(3)(e) Elevators Flexible Cords and Cables • Flexible cords and cables are permitted in machine rooms or spaces and control rooms or spaces without raceways under the following conditions: – They are not longer than 1.8 m (6 ft). – They are flame-retardant. – They are protected from physical damage. – They are part of the elevator equipment or driving machine. 4/13/2015 Photo: IAEI Archives 4/13/2015 645.2 Definition • Abandoned Supply Circuits and Interconnecting Cables. • Installed supply circuits and interconnecting cables that are not terminated at equipment and not identified for future use with a tag. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives 680.71 Protection • Hydromassage bathtubs and their associated electrical components shall be on an individual branch circuit(s) and protected by a readily accessible ground-fault circuit interrupter. • All 125-volt, single-phase receptacles not exceeding 30 amperes and located within 1.83 m (6 ft) measured horizontally of the inside walls of a hydromassage tub shall be protected by a ground-fault circuit interrupter(s). 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives Chapter Seven Special Conditions 4/13/2015 Photo: IAEI Archives Chapter Eight Communications Systems 4/13/2015 800.24 Mechanical Execution of Work • Listed and non-listed securing methods and hardware are permitted to be used with network-powered broadband communications circuits. • Cable ties are now recognized as a securing means for NPBCS cables. 4/13/2015 Photo: IAEI Archives 800.156 Dwelling Unit Communications Outlet • At least one communications outlet is required to be installed within a dwelling unit. • The wiring for this communication outlet shall be routed to the service provider demarcation point of the dwelling unit. 4/13/2015 Photo: IAEI Archives Photo: IAEI Archives THINK SAFETY THE END