Definitions Applicable to 29 CFR 1926 Subpart K cont'd

DOE-HDBK-1092-2004

Outlet--A point on the wiring system at which current is taken to supply utilization equipment.

Overcurrent--Any current in excess of the rated current of equipment or the ampacity of a

conductor. It may result from overload (see definition), short circuit, or ground fault. A current

in excess of rating may be accommodated by certain equipment and conductors for a given

set of conditions. Hence the rules for overcurrent protection are specific for particular

situations.

Overload--Operation of equipment in excess of normal, full load rating, or of a conductor in

excess of rated ampacity which, when it persists for a sufficient length of time, would cause

damage or dangerous overheating. A fault, such as a short circuit or ground fault, is not an

overload. (See "Overcurrent.")

Panelboard--A single panel or group of panel units designed for assembly in the form of a

single panel; including buses, automatic overcurrent devices, and with or without switches for

the control of light, heat, or power circuits; designed to be placed in a cabinet or cutout box

placed in or against a wall or partition and accessible only from the front. (See "Switchboard.")

Portable X-ray--X-ray equipment designed to be hand--carried.

Power fuse--(Over 600 volts, nominal.) See "Fuse."

Power outlet--An enclosed assembly which may include receptacles, circuit breakers,

fuseholders, fused switches, buses and watt-hour meter mounting means; intended to serve

as a means for distributing power required to operate mobile or temporarily installed

equipment.

Premises wiring system--That interior and exterior wiring, including power, lighting, control,

and signal circuit wiring together with all of its associated hardware, fittings, and wiring

devices, both permanently and temporarily installed, which extends from the load end of the

service drop, or load end of the service lateral conductors to the outlet(s). Such wiring does

not include wiring internal to appliances, fixtures, motors, controllers, motor control centers,

and similar equipment.

Qualified person--One familiar with the construction and operation of the equipment and the

hazards involved.

Qualified testing laboratory--A properly equipped and staffed testing laboratory which has

capabilities for and which provides the following services:

a. Experimental testing for safety of specified items of equipment and materials referred to in

this standard to determine compliance with appropriate test standards or performance in a

specified manner;

b. Inspecting the run of such items of equipment and materials at factories for product

evaluation to assure compliance with the test standards;

c. Service-value determinations through field inspections to monitor the proper use of labels

on products and with authority for recall of the label in the event a hazardous product is

installed;

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