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DOE-HDBK-1092-98
Oven, wall-mounted--An oven for cooking purposes designed for mounting in or on a wall or other
surface and consisting of one of more heating elements, internal wiring, and built-in or separately
mountable controls. (See "Cooking unit, counter-mounted.")
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.")
Permanently installed decorative fountains and reflection pools--Those that are constructed in the
ground, on the ground or in a building in such a manner that the pool cannot be readily disassembled
for storage and are served by electrical circuits of any nature. These units are primarily constructed
for their aesthetic value and not intended for swimming or wading.
Permanently installed swimming pools, wading and therapeutic pools--Those that are constructed
in the ground, on the ground, or in a building in such a manner that the pool cannot be readily
disassembled for storage whether or not served by electrical circuits of any nature.
Portable X-ray--X-ray equipment designed to be hand-carried.
Power and control tray cable--Type TC power and control tray cable is a factory assembly of two
or more insulated conductors, with or without associated bare or covered grounding conductors
under a nonmetallic sheath, approved for installation in cable trays, in raceways, or where supported
by a messenger wire.
Power fuse--(Over 600 volts, nominal.) See "Fuse."
Power-limited tray cable--Type PLTC nonmetallic-sheathed power limited tray cable is a factory
assembly of two or more insulated conductors under a nonmetallic jacket.
Power outlet--An enclosed assembly which may include receptacles, circuit breakers, fuseholders,
fused switches, buses and watt-hour meter mounting means; intended to supply and control power
to mobile homes, recreational vehicles or boats, or to serve as a means for distributing power required
to operate mobile or temporarily installed equipment.
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