University:
California Institute of Technology
Course:
EE/APh 40 | Physics of Electrical Engineering
Academic year:

2023
Views:

354

Pages:

4
Author:

Prince Sampson

DEFINITION OF TERMS AMPACITY, the current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. APPLIANCE, utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying and so forth. APPROVED, acceptable to the authority having jurisdiction. ASKAREL, a generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media. Askarel 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 on the askarel type. ATTACHMENT PLUG, a device that, by insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle. AUTHORITY HAVING JURISDICTION (AHJ), the organization, office, or individual responsible for approving equipment, materials an installation, or a procedure. AUTOMATIC, self-acting, operating by its own mechanism when actuated by some impersonal influence, as, for example, a change in current, pressure, temperature, or mechanical configuation. BRANCH CIRCUIT, the circuit conductors between the final overcurrent device protecting the circuit and the outlets. CIRCUIT BREAKER, a device designed to open and close a circuit by nonautomatic means and to open the circuit automatically on a pre determined overcurrent without damage to itself when properly applied within its rating. CONDUCTOR BARE, a conductor having no covering or electrical insulation whatsoever. CONDUCTOR INSULATED, a encased within material of composition and thickness that is recognized by this Code as electrical insulation. CONTINUOUS LOAD, a load where the maximum current is expected to continue for 3 hours or more. CONTROLLER, a device or group of devices that serves to govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected. CUTOUT BOX, an enclosure designed for surface mounting that has swinging doors or cover secured directly to and telescoping with the walls of the box proper. DEMAND FACTOR, the ratio of the maximum demand of a system, or part of a system, to the total connected load of a system or the part of the system under consideration. DEVICE, a unit of an electrical system that is intended to carry or control but not utilize electric energy.