Definitions cont'd - hdbk10920276

DOE-HDBK-1092-98

jacketed with an extruded moisture-, flame-, oil-, corrosion-, fungus-, and sunlight-resistant

nonmetallic material.

Show window--Any window used or designed to be used for the display of goods or advertising

material, whether it is fully or partly enclosed or entirely open at the rear and whether or not it has

a platform raised higher than the street floor level.

Sign--See "Electric Sign."

Signaling circuit--Any electric circuit that energizes signaling equipment.

Special permission--The written consent of the authority having jurisdiction.

Storable swimming or wading pool--A pool with a maximum dimension of 15 feet and a maximum

wall height of 3 feet and is so constructed that it may be readily disassembled for storage and

reassembled to its original integrity.

Switchboard--A large single panel, frame, or assembly of panels which have switches, buses,

instruments, overcurrent and other protective devices mounted on the face or back or both.

Switchboards are generally accessible from the rear as well as from the front and are not intended

to be installed in cabinets. (See "Panelboard.")

Switches.

General-use switch--A switch intended for use in general distribution and branch circuits. It is rated

in amperes, and it is capable of interrupting its rated current at its rated voltage.

General-use snap switch--A form of general-use switch so constructed that it can be installed in

flush device boxes or on outlet box covers, or otherwise used in conjunction with wiring systems

recognized by this subpart.

Isolating switch--A switch intended for isolating an electric circuit from the source of power. It has

no interrupting rating, and it is intended to be operated only after the circuit has been opened by

some other means.

Motor-circuit switch--A switch, rated in horsepower, capable of interrupting the maximum

operating overload current of a motor of the same horsepower rating as the switch at the rated

voltage.

Switching devices--(Over 600 volts, nominal.) Devices designed to close and/or open one or more

electric circuits. Included in this category are circuit breakers, cutouts, disconnecting (or isolating)

switches, disconnecting means, interrupter switches, and oil (filled) cutouts.

Transportable X-ray--X-ray equipment installed in a vehicle or that may readily be disassembled

for transport in a vehicle.

Utilization equipment--Utilization equipment means equipment which utilizes electric energy for

mechanical, chemical, heating, lighting, or similar useful purpose.

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