Week 2 Definitions

Question 1

Approved

Answer 1

Acceptable to the authority having jurisdiction

Question 2

Authority having jurisdiction (AHJ)

Answer 2

An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure.

Question 3

Identified (as applied to equipment)

Answer 3

Recognized as suitable for the specific purpose, function, use, environment, application, and so forth, where described in a particular Code requirement

Question 4

Listed

Answer 4

Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.

Question 5

Structure

Answer 5

That which is built or constructed, other than equipment

Question 6

Cabinet

Answer 6

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

Question 7

Panelboard

Answer 7

A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices, and equipped with or without switches for the control of light, heat, or power circuits; designed to be placed in a cabinet, enclosure, or cutout box placed in or against a wall, partition, or other support; and accessible only from the front

Question 8

Switchboard

Answer 8

A large single panel, frame, or assembly of panels on which are mounted on the face, back, or both, switches, overcurrent and other protective devices, buses, and usually instruments

Question 9

Switchgear

Answer 9

An assembly completely enclosed on all sides and top with sheet metal (except for ventilating openings and inspection windows) and containing primary power circuit switching, interrupting devices, or both, with buses and connections. The assembly may include control and auxiliary devices. Access to the interior of the enclosure is provided by doors, removable covers, or both

Question 10

Motor control center

Answer 10

An assembly of one or more enclosed sections having a common power bus and principally containing motor control units

Question 11

Controller

Answer 11

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.

Question 12

Power Outlet

Answer 12

An enclosed assembly that may include receptacle, circuit breakers, fuseholders, fused switches, buses, and watt-hour meter mounting means; intended to supply and control power to mobile homes, recreational vehicles, park trailers, or boats or to serve as a means for distributing power required to operate mobile or temporarily installed equipment

Question 13

Receptacle

Answer 13

A contact device installed at the outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device. A single receptacle is a single contact device with no other contact device on the same yoke or strap. A multiple receptacle is two or more contact devices on the same yoke or strap

Question 14

Receptacle outlet

Answer 14

An outlet where one or more receptacles are installed

Question 15

General-Use Switch

Answer 15

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

Question 16

General-use snap switch

Answer 16

A form of General-Use Switch constructed so that it can be installed in device boxes or on box covers, or otherwise used in conjunction with wiring systems recognized by this Code

Question 17

Motor circuit switch

Answer 17

A switch rated in horsepower that is capable of interrupting the maximum operating overload current of a motor of the same horsepower rating as the switch at the rated voltage

Question 18

Fitting

Answer 18

An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perform a mechanical rather than electrical function

Question 19

Utilization equipment

Answer 19

Equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes

Question 20

Premises wiring (system)

Answer 20

Interior and exterior wiring, including power, lighting, control, and signal circuit wiring together with all their associated hardware, fittings, and wiring devices, both permanently and temporarily installed. This includes one of the following:
1) Wiring from the service point or power source to the outlets
2) Wiring from and including the power source to the outlets where there is no service point

Such wiring does not include wiring internal to appliances, luminaries, motors, controllers, motor control centers, and similar equipment

Question 21

Nominal Voltage

Answer 21

A ( ) assigned to a circuit or system for the purpose of conveniently designating it’s voltage class

Question 22

Voltage to ground

Answer 22

For grounded circuits, the voltage between the given conductor and that point of conductor or the circuit that is grounded; for ungrounded circuits, the greatest voltage between the given conductor and any other conductor of the circuit

Question 23

Outlet

Answer 23

A point on the wiring system at which current is taken to supply utilization equipment