Section 603 — ELECTRICAL EQUIPMENT, WIRING AND HAZARDS

Electrical equipment, wiring and systems required by this code or the California Building Code shall be installed, used and maintained in accordance with the California Electrical Code and Sections 603.2 through 603.9.

603.1.1 Equipment and wiring. All electrical equipment, wiring, devices and appliances shall be tested; listed and labeled; and installed, used and maintained in accordance with the California Electrical Code and all instructions included as part of such listing.

603.1.2 Healthcare facilities. In Group I-2 facilities, ambulatory care facilities and outpatient clinics, the electrical systems and equipment shall be maintained and tested in accordance with NFPA 99 and Article 517 of the California Electrical Code.

Conditions that constitute an electrical shock or fire hazard shall be

abated.

603.2.1 Modified or damaged. Electrical wiring, devices, equipment and appliances that are modified or damaged, and constitute an electrical shock or fire hazard, shall not be used until repaired or replaced in accordance with this code and the California Electrical Code .

603.2.2 Open electrical terminations. Open junction boxes and open-wiring splices shall be prohibited. Approved covers shall be provided for all switch and electrical outlet boxes.

Illumination shall be provided for service equipment areas, motor control centers and electrical panelboards.

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BUILDING SERVICES AND SYSTEMS

Working space around electrical equipment shall be provided in accordance with Section 110.26 of the California Electrical Code for electrical equipment rated 1,000 volts or less, and Section 110.32 of the California Electrical Code for electrical equipment rated over 1,000 volts. The minimum required working space shall be not less than 30 inches (762 mm) in width, 36 inches (914 mm) in depth and 78 inches (1981 mm) in height in front of electrical service equipment. Where the electrical service equipment is wider than 30 inches (762 mm), the minimum working space shall be not less than the width of the equipment. Storage of materials shall not be located within the designated working space.

603.4.1 Electrical room marking. Doors into electrical control panel rooms shall be marked with a plainly visible and legible sign stating “ELECTRICAL ROOM” or similar approved wording.

603.4.2 Disconnect means marking. 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.

603.4.3 Multiple supply connections marking. 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 the California Electrical Code .

The construction and use of current taps and relocatable power taps shall be in accordance with the California Electrical Code and this code.

603.5.1 Listing. Relocatable power taps shall be listed and labeled in accordance with UL 1363. Current taps shall be listed and labeled in accordance with UL 498A.

603.5.1.1 Listing in Group I-2 occupancies and ambulatory care facilities. In Group I-2 occupancies and ambulatory care facilities, relocatable power taps shall be listed and labeled in accordance with UL 1363 except under the following conditions:

1. In Group I-2, Condition 2 occupancies, relocatable power taps providing power to patient care-related electrical equipment in the patient care vicinity, as defined by NFPA 99, shall be listed and labeled in accordance with UL 1363A or UL 60601-1.

2. In Group I-2, Condition 1 facilities, in care recipient rooms using line-operated patient care-related electrical equipment, relocatable power taps in the patient care vicinity, as defined by NFPA 99, shall be listed and labeled in accordance with UL 1363A or UL 60601-1.

3. In ambulatory care facilities, relocatable power taps providing power to patient care-related electrical equipment in the patient care vicinity, as defined by NFPA 99, shall be listed and labeled in accordance with UL 1363A or UL 60601-1.

603.5.2 Application and use. Relocatable power taps and current taps shall be directly connected to a permanently installed receptacle.

Exceptions:

1. Where approved for use in a Group A occupancy or in a meeting room in a Group B occupancy, not more than five relocatable power taps shall be permitted to be connected together or connected to an extension cord for temporary use to supply power to electronic equipment.
2. Current taps and relocatable power taps shall not be required to connect directly to a permanently installed receptacle outlet where used for 90 days or less for the purpose of testing the performance of such devices.

603.5.3 Installation. 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 shall not be a substitute for permanent wiring and shall be listed and labeled in accordance with UL 817. Extension 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.

603.6.1 Application and use. Extension cords shall be plugged directly into an approved receptacle, relocatable power tap or current tap and, except for approved multiplug extension cords, shall serve only one portable appliance.

603.6.2 Ampacity. The ampacity of the extension cords shall be not less than the rated ampacity of the portable appliance supplied by the cord.

603.6.3 Maintenance. Extension cords shall be maintained in good condition without splices, deterioration or damage.

603.6.4 Grounding. Extension cords shall be grounded where serving grounded portable appliances.

Electrical motors shall be maintained free from excessive accumulations of oil, dirt, waste and debris.

The use of temporary wiring for electrical power and lighting installations shall not exceed a period of 90 days. Temporary wiring methods shall meet the applicable provisions of the California Electrical Code .

Exception: Temporary wiring for electrical power and lighting installations complying with the applicable provisions of the Cali- fornia Electrical Code is permitted during periods of construction, remodeling, repair or demolition of buildings, structures, equipment or similar activities.

603.8.1 Attachment to structures. Temporary wiring attached to a structure shall be protected from physical damage and supported on insulators spaced not more than 10 feet (3048 mm) apart.

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.

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BUILDING SERVICES AND SYSTEMS