NEC Art 100 definitions

A load is considered to be continuous if the maximum current is expected to continue for _____ hours or more.

3

A Class A GFCI protection device is designed to de-energize the circuit when the ground-fault current is approximately _____mA.

4 mA 5 mA 6 mA

Where the NEC specifies that one equipment shall be "in sight from", "within sight from", or "within sight", or etc., of another equipment, the specified equipment is to be visible and not more than ______ ft. distant from the other.

50

The Code defines a _____ as a structure that stands alone or that is cut off from adjoining structures by firewalls, with all openings therein protected by approved fire doors

Building

A _____ location may be temporarily subject to dampness and wetness.

Dry

A location not normally subject to dampness or wetness is called a _______ location.

Dry

_____ is defined as intentionally connected to earth through a ground connection or connection of sufficiently low impedance and having sufficient current-carrying capacity to prevent the buildup of voltages that may result in undue hazards to connected equipment or to persons.

Effectively grounded

Connected to earth or to some conducting body that serves in place of the earth is called _____.

Grounded

Equipment that is listed by a qualified electrical testing laboratory is not required to have the factory-installed _____ wiring inspected at the time of installation except to detect alterations or damage.

Internal

A(n) _____ is a point on the wiring system at which current is taken to supply utilization equipment.

Outlet

The service ___________ is where the premises wiring or equipment connects to the utility wiring.

Point

The conductors from the service point to the service disconnecting means is called the ______________ conductors.

Service

The following systems must be installed in accordance with the NEC.

Signaling Communications Power and Lighting

A junction box located above a suspended ceiling having removable panels is considered to be _____.

accessible

Admitting close approach; not guarded by locked doors, elevation, or other effective means, is commonly referred to as _____.

accessible (equipment)

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

accessible (wiring methods)

Capable of being reached quickly for operation, renewal, or inspections without resorting to portable ladders and such is known as _____.

accessible, readily

Compliance with the provisions of the Code will result in _____.

an electrical system essentially free from hazard

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 (lighting fixtures) that are not a part of an appliance.

appliance

Acceptable to the authority having jurisdiction means _____.

approved

Installation of communications equipment that is under the exclusive control of communications utilities, and located outdoors or in building spaces used exclusively for such installations ______ covered by the Code.

are not

A generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media.

askarel

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 is called a(n) _____.

attachment plug plug cap plug

In the event the Code requires new products, constructions, or materials that are not yet available at the time the Code is adopted, the _____ may permit the use of the products, constructions, or materials that comply with the most recent previous edition of this Code adopted by the jurisdiction.

authority having jurisdiction

The conductors between the final overcurrent protection device and the outlet(s) are known as the _____ conductors.

branch-circuit

When the term exposed, as it relates to live parts, is used by the Code, it refers to _____.

capable of being inadvertently touched or approached nearer than a safe distance by a person parts that are not suitably guarded, isolated, or insulated

Utilization equipment is equipment that utilizes electricity for _____.

chemicals heating lighting

NM cable is considered _____ if rendered in accessible by the structure or finish of the building.

concealed

A separate portion of a conduit or tubing system that provides access through a removal cover(s) to the interior of the system at the junction of two or more sections of the system or at a terminal point of the system, is defined as a(n) _____.

conduit body

A device or group of devices that serves to govern in some predetermined manner the electrical power delivered to the apparatus to which it is connected is a _____.

controller

A conductor encased within material of composition or thickness that is not recognized by this Code as electrical insulation is considered.

covered

The environment of a wiring method under the eaves of a house having a roofed open porch would be considered a _____ location.

damp

A unit of an electrical system that is intended to carry but not utilized electric energy.

device

A _____ is a device, group of devices, or other means by which the conductors of a circuit can be disconnected from their source of supply.

disconnecting means

Constructed so that dust will not enter the enclosing case under specified test conditions is known as _____.

dusttight

The Code contains provisions considered necessary for safety regardless of _______.

efficient use convenience good service of future expansion of electrical use

The Code applies to the installation of _________.

electrical conductors and equipment within or on public and private buildings outside conductors and equipment on the premises optical fiber cable

The Code covers all of the following electrical installations except _____.

electrical generation installations on property owned or leased by the electric utility company

An apparatus enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it, and of preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within, and that operates at such an external temperature that surrounding flammable atmosphere will not be ignited is defined as a(n) ________.

explosionproof apparatus

The NEC term to define wiring methods that are not concealed is _____.

exposed

The authority having jurisdiction for enforcement of the Code has the responsibility______________.

for making interpretations of the rules of the Code for deciding upon the approval of equipment and materials for waiving specific requirements in the Code and allowing alternate methods and material if safety is maintained

The NEC is ___________.

for the practical safeguarding of persons and property

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.

general-use snap

Chapters 1 through 4 of the NEC apply ______.

generally to all electrical installations

The voltage of a circuit is defined by the Code as the _____ root-mean-square (effective) difference of potential between any two conductors of the circuit.

greatest

A device intended for the protection of personnel, that functions to de-energize a circuit within an established period of time when a current-to-ground exceeds some predetermined value less than that required to operate the overcurrent protection device of the supply circuit, is a(n) _____.

ground-fault circuit interrupter

A system intended to provide protection of equipment from damaging line-to-ground fault currents by operating to cause a disconnecting means to open all ungrounded conductors of the faulted circuit is defined as _____.

ground-fault protection of equipment

A system or circuit conductor that is intentionally grounded is a(n) _____.

grounded conductor

In a grounded system, the conductor that connects the circuit grounded conductor at the service to the grounding electrode is called the _____ conductor.

grounding electrode

A hoistway is any _____ in which an elevator or dumbwaiter is designed to operate

hatchway or well hole vertical opening or space shaftway

Recognized as suitable for the specific purpose, function, use, environment, and application is the definition of _____.

identified (as applied to equipment)

A branch circuit that supplies only one utilization equipment is a(n) _____ branch circuit.

individual

The highest current at rated voltage that a device is intended to interrupt under standard test conditions is the _____.

interrupting rating

_____ is a qualifying term indicating that there is a purposely introduced delay in the tripping action of the circuit breaker, which delay decreases as the magnitude of the current increases.

inverse-time

_____ means that an object is not readily accessible to persons unless special means for access are used.

isolated

Equipment or materials to which a symbol or other identifying mark of an organization that is acceptable to the authority having jurisdiction has been attached is known as _____.

labeled

The connection between the grounded conductor and the equipment grounding conductor at the service is accomplished by installing a _____ jumper.

main bonding

A value assigned to a circuit or system for the purpose of conveniently designating its voltage class such as 120/240V is called _____ voltage

nominal

A _____ circuit is a circuit, in which any arc or thermal effect produced under intended operating conditions of the equipment is not capable, under specified test conditions, of igniting the flammable gas-air, vapor-air or dust-air mixture.

nonincendive

A circuit breaker is a device designed to _____ a circuit by nonautomatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.

open and close

Continuous duty is defined as _____.

operation at a substantially constant load for an indefinitely long time

The service conductors between the terminals of the service equipment and a point usually outside the building, clear of building walls, where joined by tap or splice to the service drop is called _____ service entrance conductors

overhead

A single panel or group of panel units designed for assembly in the form of a single panel is called a _____.

panel board

Something constructed, protected, or treated so as to prevent rain from interfering with the successful operation of the apparatus under specified test conditions is defined as _____.

rainproof

A contact device installed at an outlet for the connection of an attachment plug is known as a(n) _____.

receptacle

Equipment enclosed in a case or cabinet that is provided with a means of sealing or locking so that live parts cannot be made accessible without opening the enclosure is said to be _____.

sealable

A _____ is a premises wiring system whose power is derived from a battery, from a solar photovoltaic system, or from a generator, transformer, or converter windings, and that has no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system

separately derived

The ___________ drop conductors are the overhead conductors between the last utility pole and the service-entrance conductors.

service

Underground service conductors between the street main and the first point of connection to the service entrance are known as the _____.

service laterals

Overhead-service conductors from the last pole or other aerial support to and including the splices, if any, are called _____ conductors.

service-drop

The combination of all components and subsystems that convert solar energy into electrical energy is called a _____ system.

solar photovoltaic

A large single panel, frame, or assembly of panels on which switches, overcurrent and other protective devices, buses, and instruments are mounted is a _____.  They are generally accessible from the rear as well as from the front and are not intended to be installed in cabinets.

switchboard

For a circuit to be considered a multiwire branch circuit, it must have _____.

two or more ungrounded conductors with a voltage potential between them a grounded conductor having equal voltage potential between it and each ungrounded conductor of the circuit a grounded conductor connected to the grounded (neutral) terminal of the system

An enclosure or device constructed so that moisture will not enter the enclosure or device under specific test conditions is called _____.

watertight

A single receptacle is a single contact device with no other contact device on the same _____.

yoke