Definitions cont'd - hdbk10920284

DOE-HDBK-1092-98

indicates what is acceptable to the Assistant Secretary of Labor, and therefore approved within the

meaning of this Subpart.

Askarel--A generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as

electrical insulating media. Askarels of various compositional types are used. Under arcing

conditions the gases produced, while consisting predominantly of noncombustible hydrogen

chloride, can include varying amounts of combustible gases depending upon the askarel type.

Attachment plug (Plug cap)(Cap)--A device which, by insertion in a receptacle, establishes

connection between the conductors of the attached flexible cord and the conductors connected

permanently to the receptacle.

Automatic--Self-acting, operating by its own mechanism when actuated by some impersonal

influence, as for example, a change in current strength, pressure, temperature, or mechanical

configuration.

Bare conductor--See "Conductor."

Bonding--The permanent joining of metallic parts to form an electrically conductive path which will

assure electrical continuity and the capacity to conduct safely any current likely to be imposed.

Bonding jumper--A reliable conductor to assure the required electrical conductivity between metal

parts required to be electrically connected.

Branch circuit--The circuit conductors between the final overcurrent device protecting the circuit

and the outlet(s).

Building--A structure which stands alone or which is cut off from adjoining structures by fire walls

with all openings therein protected by approved fire doors.

Cabinet--An enclosure designed either for surface or flush mounting, and provided with a frame,

mat, or trim in which a swinging door or doors are or may be hung.

Certified--Equipment is "certified" if it:

a. has been tested and found by a qualified testing laboratory to meet applicable test standards or

to be safe for use in a specified manner, and

b. is of a kind whose production is periodically inspected by a qualified testing laboratory. Certified

equipment must bear a label, tag, or other record of certification.

Circuit breaker--

a. (600 volts nominal, or less.)--A device designed to open and close a circuit by nonautomatic

means and to open the circuit automatically on a predetermined overcurrent without injury to

itself when properly applied within its rating.

B-24