Identified electrical hazards shall be abated. Identified hazardous electrical conditions in permanent wiring shall be brought to the attention of the responsible code official. Electrical wiring, devices, appliances and other equipment that is modified or damaged and constitutes an electrical shock or fire hazard shall not be used.
Illumination shall be provided for service equipment areas, motor control centers and electrical panelboards.
A working space of not less than 30 inches (762 mm) in width, 36 inches (914 mm) in depth and 78 inches (1981 mm) in height shall be provided in front of electrical service equipment. Where the electrical service equipment is wider than 30 inches (762 mm), the working space shall be not less than the width of the equipment. Storage of materials shall not be located within the designated working space.
- Where other dimensions are required or allowed by NFPA 70.
- Access openings into attics or under-floor areas that provide a minimum clear opening of 22 inches (559 mm) by 30 inches (762 mm).
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. Where buildings or structures are supplied by more than one power source, markings shall be provided at each service equipment location and at all interconnected electric power production sources identifying all electric power sources at the premises in accordance with NFPA 70.
Multiplug adapters, such as cube adapters, unfused plug strips or any other device not complying with NFPA 70 shall be prohibited.
Relocatable power taps shall be of the polarized or grounded type, equipped with overcurrent protection, and shall be listed in accordance with UL 1363.
Relocatable power taps shall be directly connected to a permanently installed receptacle.
Relocatable power tap cords shall not extend through walls, ceilings, floors, under doors or floor coverings, or be subject to environmental or physical damage.
Extension cords and flexible cords shall not be a substitute for permanent wiring and shall be listed and labeled
in accordance with UL 817. Extension cords and flexible cords shall not be affixed to structures, extended through walls, ceilings or floors, or under doors or floor coverings, nor shall such cords be subject to environmental damage or physical impact. Extension cords shall be used only with portable appliances. Extension cords marked for indoor use
shall not be used outdoors.
Extension cords shall be plugged directly into an approved
receptacle, power tap or multiplug adapter and, except for approved
multiplug extension cords, shall serve only one portable appliance.
The ampacity of the extension cords shall be not less than the rated capacity of the portable appliance supplied by the cord.
Extension cords shall be maintained in good condition without splices, deterioration or damage.
Extension cords shall be grounded where serving grounded portable appliances.
Open junction boxes and open-wiring splices shall be prohibited. Approved
covers shall be provided for all switch and electrical outlet boxes.
Electrical equipment and fixtures shall be tested and listed
by an approved agency
and installed and maintained in accordance with all instructions included as part of such listing.
Electrical motors shall be maintained free from excessive accumulations of oil, dirt, waste and debris.
Temporary wiring for electrical power and lighting installations is allowed for a period not to exceed 90 days. Temporary wiring methods shall meet the applicable provisions of NFPA 70.
Exception: Temporary wiring for electrical power and lighting installations is allowed during periods of construction, remodeling, repair or demolition of buildings, structures, equipment or similar activities.
Temporary wiring attached to a structure shall be attached in an approved
Where not prohibited by other sections of this code, portable, electric space heaters shall be permitted to be used in all occupancies in accordance with Sections 604.10.1
portable, electric space heaters shall be used.
Portable, electric space heaters shall be plugged directly into an approved
Portable, electric space heaters shall not be plugged into extension cords.
Portable, electric space heaters shall not be operated within 3 feet (914 mm) of any combustible materials. Portable, electric space heaters shall be operated only in locations for which they are listed.
Where used in Group I-2
and ambulatory care facilities
, portable, electric space heaters shall be limited to those having a heating element that cannot exceed a temperature of 212°F (100°C), and such heaters shall only be used in nonsleeping staff and employee areas.
Abandoned cables in plenums
that are able to be accessed without causing damage, or requiring demolition to the building, shall be tagged for future use
or shall be removed.