ARTICLE 210. BRANCH CIRCUITS.
NEC Section 210-8. Ground-Fault Circuit-Interrupter Protection for Personnel. (Amended)
(a) Dwelling Units.
(2) All 125-volt, single-phase, 15 - and 10 - ampere receptacles installed in garages and ancillary buildings shall have ground-fault circuit-interrupter protection for personnel.
Exception No. 1 to (a)(2): Receptacles that are not readily accessible.
Exception No. 2 to (a)(2): A single receptacle or a duplex receptacle for two appliances located within dedicated space for each appliance that in normal use is not moved from one place to another, and that is cord- and plug-connected in accordance with Section 400-7(a)(6), (a)(7), or (a)(8).
Receptacles installed under exceptions to Section 210-8(a)(2) shall not be considered as meeting the requirements of Section 210-52(g).
NEC Section 210-11. Circuit Interconnection. (Added) Neutral and ungrounded circuit conductors for two-, three-, or four-wire circuits shall originate at the same outlet or panel. Neutral and/or ungrounded conductors for circuits shall not be tapped from different locations in the wiring system.
NEC Section 210-70. Lighting Outlets Required. (Amended)
(FPN): A vehicle door in a garage is not considered as an outdoor entrance. A detached garage would not require any exterior lighting outlets.
ARTICLE 230. SERVICES.
NEC Section 230-72. Grouping of Disconnects. (Amended)
(a) General. The two to six disconnects as permitted in Section 230-71 shall be grouped. Each disconnect shall be marked to indicate the load served.
Exception No. 1: One of the two to six service disconnecting means permitted in Section 230-71, where used only for a water pump also intended to provide fire protection, shall be permitted to be located remote from the other disconnecting means.
Exception No. 2: The service disconnecting means for electric central air conditioning for one and two-family dwellings, located immediately adjacent to the outdoor meter cabinet, shall be permitted.
(FPN): It is the intent of Section 230-2 that a permanent plaque or directory be installed at each service equipment location denoting all other service equipment locations and the load served.
ARTICLE 336. NONMETALLIC-SHEATHED CABLE.
NEC Section 336-4. Uses Not Permitted. (Amended)
(a) Type NM or NMC. Types NM and NMC cables shall not be used (1) as service entrance cable; (2) in commercial garages having hazardous (classified) locations as provided in Section 511-2; (3) in theaters and similar locations except as provided in Article 518, Places of Assembly; (4) in motion picture studios; (5) in storage battery rooms; (6) in hoistways; (7) embedded in poured cement, concrete, or aggregate; or (8) in any hazardous (classified) location except as permitted by Section 501-4(b), Exception, and Section 504-20.
ARTICLE 350. FLEXIBLE METAL CONDUIT.
NEC Section 350-5. Grounding. (Amended) Flexible metal conduit shall not be permitted as grounding means. Where an equipment bonding jumper is required around flexible metal conduit, it shall be installed in accordance with Section 250-79.
ARTICLE 351. LIQUIDTIGHT FLEXIBLE METAL CONDUIT AND LIQUIDTIGHT FLEXIBLE NONMETALLIC CONDUIT.
Section 351-9. Grounding. (Amended) Liquidtight flexible metal conduit shall not be permitted as a grounding means. Where an equipment bonding jumper is required around liquidtight flexible metal conduit, it shall be installed in accordance with Section 250-79.
ARTICLE 422. APPLIANCES.
NEC Section 422-8. Flexible Cords. (Amended)
(e) Residential Food Waste Disposers. All such equipment and controls in dwelling type occupancies shall be provided with an independent disconnecting means within sight of the equipment and shall be readily accessible. Food waste disposers of 1/2 horsepower or less shall be wired only with heavy duty three-wire minimum No. 16 hard service cord and approved cap and three-wire "U" slot grounding-type receptacles. On new construction, a disconnect switch shall be mounted in the wall adjacent to the sink.
NEC Section 422-21. Disconnection of Permanently Connected Appliances. (Amended)
(c) Space Heating Equipment (Other Than Electric Heat). A readily accessible disconnect switch shall be mounted on the exterior of the heating equipment or on a surface adjacent to the heating equipment.
ARTICLE 517. HEALTH CARE FACILITIES.
NEC Section 517-61. Wiring and Equipment. (Amended)
(a) Within Anesthetizing Locations.
(1) Except as permitted in Section 517-160, each power circuit within, or partially within, an anesthetizing location as referred to in Section 517-60 shall be isolated from any distribution system by the use of an isolated power system.
Exception: An area in a health care facility which does not use flammable inhalation anesthetics and is dedicated to brief, superficial procedures carried out under inhalation anesthesia or analgesia, such as dental operatories, clinics and outpatient facilities.
ARTICLE 600. ELECTRIC SIGNS AND OUTLINE LIGHTING.
NEC Section 600-2. Disconnect Required. (Amended) Each outline lighting installation, and each sign of other than the portable type, shall be controlled by an externally operable switch or breaker that will open all ungrounded conductors.
(a) In Sight of Sign. The disconnecting means shall be within sight of the sign or outline lighting that it controls. Where the transformer is located remote from the sign or outline lighting, the disconnect shall be located within sight of the transformer and be capable of being locked in the open position.
Exception No. 1: A disconnecting means shall not be required for an exit directional sign connected to a circuit within the scope of Article 700.
(FPN): The disconnecting means is to disconnect the branch circuit power from the sign or primary winding of the transformer.
(b) Control Switch Rating. Switches, flashers, and similar devices controlling transformers shall be either rated for controlling inductive load(s) or have an ampere rating not less than twice the ampere rating of the transformer.
(FPN): See Section 380-14 for rating of snap switches.
ARTICLE 760. FIRE PROTECTIVE SIGNALING SYSTEMS.
NEC Section 760-8. Fire Alarm Supervision. (Added) All fire-protective circuits shall be electrically supervised so that any malfunction of the system, such as an electrical open, a ground fault, or any short circuit fault on the main power supply, signaling line, or alarm-initiating devices, will sound an alarm or show a trouble signal when proper alarm operation would be prevented.
Exception: Interconnecting circuits of household fire-warning equipment that are wholly within a dwelling unit.
SAFETY CODE FOR ELEVATORS AND ESCALATORS.
Requirements for elevator equipment room:
101.5a Lighting. Permanent electric lighting shall be provided in all machinery spaces. The illumination shall be not less than 10 footcandles at the floor level. The lighting control switch shall be located within easy reach of the access to such rooms or spaces. Where practicable, the light control switch shall be located on the lock-jamb side of the access door.
101.5c Receptacles. A duplex receptacle rated at not less than 15A 120V shall be provided in each machine room and machinery space.*
*Michigan State Law-Out of ASMF A17.1 1990, Safety Code for Elevators and Escalators.
(Ord. 561. Passed 6-15-95.)