1. Scope. This chapter governs the specific design and construction of electrical systems and equipment.

2. Abatement of electrical hazards. All identified electrical hazards shall be abated. All identified hazardous electrical conditions in permanent wiring shall be brought to the attention of the code official responsible for enforcement of this code. Electrical wiring, devices, appliances and other equipment which is modified or damaged and constitutes an electrical shock or fire hazard shall not be used.

3. Appliance and fixture listing. Electrical appliances and fixtures shall be tested and listed in published reports of inspected electrical equipment by an approved agency and installed in accordance with all instructions included as part of such listing.

1. General. The provisions of this section shall apply to the design, construction, installation, use and maintenance of electrical systems and equipment. Where differences occur between provisions of this code and referenced codes or standards, the provisions of this code shall apply.

2. Nonmetallic-sheathed cable. The use and installation of Type NM, NMC and NMS (nonmetallic sheathed) cable wiring methods shall be limited to a dry condition. Any such wiring shall be installed after the building is roofed, sided or otherwise protected from the elements as approved by the code official.

3. Cutting, notching and boring. The cutting, notching and boring of wood and steel framing members, structural members and engineered wood products shall be in accordance with the International Building Code.

4. Penetrations. Penetrations of walls, floors, ceilings and assemblies required to have a fire-resistance rating, shall be protected in accordance with the International Building Code. Where cables, conductors and raceways penetrate fireblocking or draftstopping, such penetrations shall be protected by filling the annular space with an approved fireblocking material.

5. Smoke detector circuits. Smoke detectors required by the International Building Code and installed within dwelling units shall not be connected as the only load on a branch circuit.

Such detectors shall be supplied by branch circuits having lighting loads consisting of lighting outlets in habitable spaces.

6. Appliance access. Where appliances requiring access are installed in attics or underfloor spaces, a lighting fixture controlled by a switch located at the required passageway opening to such space and a receptacle outlet shall be provided at or near the appliance location.

7. Equipment and door labeling. Doors into electrical control panel rooms shall be marked with a plainly visible and legible sign stating ELECTRICAL ROOM or similar approved wording. The disconnecting means for each service, feeder or branch circuit originating on a switchboard or panelboard shall be legibly and durably marked to indicate its purpose unless such purpose is clearly evident.

8. Smoke alarm power source. In new construction, required smoke alarms shall receive their primary power from the building wiring where such wiring is served from a commercial source and shall be equipped with a battery backup. Smoke alarms shall emit a signal when the batteries are low. Wiring shall be permanent and without a disconnecting switch other than as required for overcurrent protection.

EXCEPTION:

Smoke alarms are not required to be equipped with battery backup in Group R-1 where they are connected to an emergency electrical system.

9. Smoke alarm interconnection. Where more than one smoke alarm is required to be installed within an individual dwelling unit or sleeping unit in Group R-2, R-3 or R-4, or within an individual sleeping unit in Group R-1, the smoke alarms shall be interconnected in such a manner that the activation of one alarm will activate all of the alarms in the individual unit. The alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed.

1. Existing buildings. This section shall apply to buildings and structures that are within the scope of the International Property Maintenance Code. Every occupied building shall be provided with an electrical system in compliance with the requirements of LMC 14.13.120(C)(1)(a) through (e).