Definitions- General

Question 1

Accessible (as applied to equipment)

Answer 1

Capable of being reached for operation, renewal and inspection

Question 2

Accessible (as applied to wiring methods)

Answer 2

Capable of being removed or exposed without damaging the building or structure or finish or not permanently closed in by the structure or finish of the building

Question 3

Accessible, Readily (Readily Accessible)

Answer 3

Capable of being reached quickly for operation, renewal or inspections w/o requiring those to whom ready access is requisite to take actions such as to use tools (other than keys), to climb over or under, to remove obstacles, or to resort to portable ladders, and so forth
Informational note: Use of keys is a common practice under controlled or supervised conditions and a common alternative to the ready access requirements under such supervised conditions as provided elsewhere in the NEC

Question 4

Adjustable Speed Drive

Answer 4

Power conversion equipment that provides a means of adjusting the speed of an electric motor
Informational Note: A variable frequency drive is one type of electronic adjustable speed drive that controls the rotational speed of an ac electric motor by controlling the frequency and voltage of the electrical power supplied to the motor

Question 5

Adjustable Speed Drive System

Answer 5

A combination of an adjustable speed drive, its associated motor(s), and auxiliary equipment

Question 6

Ampacity

Answer 6

The maximum current, in amperes, that a conductor can carry continuously under the conditions of use w/o exceeding its temperature rating

Question 7

Appliance

Answer 7

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

Question 8

Approved

Answer 8

Acceptable to the authority having jurisdiction

Question 9

Arc-Fault Circuit Interrupter (AFCI)

Answer 9

A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected

Question 10

Askarel

Answer 10

A general term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media
Information Note: Askarels of various compositional types are used. Under arcing conditions, the gases produced, while consisting predominately of noncombustible hydrogen chloride, can include carrying amounts of combustible gases, depending on the askarel type

Question 11

Attachment Finding

Answer 11

A device that, by insertion into a locking support and mounting receptacle, establishes a connection between the conductors of the attached utilization equipment and the branch-circuit conductors connected to the locking support and mounting receptacle
Informational Note: An attachment fitting is different from an attachment plug because no cord is associated w the fitting. An attachment fitting in combination w a locking support and mounting receptacle secures the associated utilization equipment in place and supports its weight.

Question 12

Attachment Plug (Plug Cap) (Plug)

Answer 12

A device that, by insertion in a receptable, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.

Question 13

Authority Having Jurisdiction (AHJ)

Answer 13

An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, and installation or a procedure.
Informational Note: The phrase “authority having jurisdiction,” or its acronym AHJ, is used in NFPA documents in a broad manner, since jurisdictions and approval agencies vary, as do their responsibilities. Where public safety is primary, the authority having jurisdiction may be federal, state, local or other regional department or individual such as a fire chief; fire marshal; chief of fire prevention bureau, labor department, or health department; building official; electrical inspector; or others having statutory authority. For insurance purposes, an insurance inspection department, rating bureau or other insurance company representative may be the authority having jurisdiction. In many circumstances, the property owner or his or her designated agent assumes the role of the authority having jurisdiction; at government installations, the commanding officer or departmental official may be the authority having jurisdiction.

Question 14

Automatic

Answer 14

Performing a function w/o the necessity of human intervention

Question 15

Bathroom

Answer 15

An area including a sink (basin) with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures

Question 16

Battery System

Answer 16

Interconnected battery subsystems consisting of one or more storage batteries and battery chargers, and can include inverters, converters and associated electrical equipment

Question 17

Bonded (Bonding)

Answer 17

Connected to establish electrical continuity and conductivity

Question 18

Bonding Conductor or Jumper

Answer 18

A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected

Question 19

Bonding Jumper, Equipment

Answer 19

The connection between two or more portions of the equipment grounding conductor

Question 20

Bonding Jumper, Main

Answer 20

The connection between the grounded circuit conductor and the equipment grounding conductor or the supply-side bonding jumper, or both, at service.

Question 21

Bonding Jumper, Supply-Side

Answer 21

A conductor installed on the supply side of a service or within a service equipment enclosure(s), or for a separately derived system, that ensures the required electrical conductivity between metal parts required to be electrically connected

Question 22

Branch Circuit

Answer 22

The circuit conductors between the final over-current device protecting the circuit and the outlet(s)

Question 23

Branch Circuit, Appliance

Answer 23

A branch circuit that supplies energy to one or more outlets to which appliances are to be connected and that has no permanently connected luminaires that are not a part of an appliance

Question 24

Branch Circuit, General-Purpose

Answer 24

A branch circuit that supplies two or more receptacles or outlets for lighting and appliances

Question 25

Branch Circuit, Individual

Answer 25

A branch circuit that supplies only one utilization equipment

Question 26

Branch Circuit, Multiwire

Answer 26

A branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system

Question 27

Building

Answer 27

A structure that stands alone or that is separated from adjoining structures by fire walls

Question 28

Cabinet

Answer 28

An enclosure that is designed for either surface mounting or flush mounting that is provided w a frame, mat, or trim in which a swinging door or doors are or can be hung

Question 29

Cable, Coaxial

Answer 29

A cylindrical assembly composed of conductor centered inside a metallic tube or shield, separated by a dielectric material, and usually covered by an insulating jacket.