Accessible (as applied to equipment) - CORRECT ANSWER-Admitting close approach;
not guarded by locked doors, elevation, or other effective
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Accessible (as applied to wiring methods) - CORRECT ANSWER-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
Accessible, Readily (Readily Accessible) - CORRECT ANSWER-Capable of being
reached quickly for operation, renewal, or inspections without requiting those to whom
ready access is requisite to actions such as to use tools, to climb over or remove
obstacles, or to resort to portable ladders, and so forth
Approved - CORRECT ANSWER-Acceptable to the authority having jurisdiction
Arc Flash Hazard - CORRECT ANSWER-A dangerous condition associated with the
possible release of energy caused by an electric arc
Arc Flash Suit - CORRECT ANSWER-A complete arc-rated clothing and equipment
system that covers the entire body, except for the hands and feet
Arc Rating - CORRECT ANSWER-The value attributed to materials that describes their
performance to exposure to an electrical arc discharge. The arc rating is expressed in
cal/cm^2 and is derived from the determined value of the arc thermal performance value
(ATPV) or energy of breakopen threshold (EBT) (should a material system exhibit a
breakopen response below the ATPV value). Arc rating is reported as either ETPV or
EBT, whichever is the lower value.
Attachment Plug (Plug Cap) (Plug) - CORRECT ANSWER-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) - CORRECT ANSWER-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
Automatic - CORRECT ANSWER-Performing a function without the necessity of human
intervention
Balaclava (Sock Hand) - CORRECT ANSWER-An arc-rated hood that protects the neck
and head except for the facial area of the eyes and nose
Barricade - CORRECT ANSWER-A physical obstruction such as tapes, cones, or Aframe wooden or metal structures intended to provide a warning and to limit access
Barrier - CORRECT ANSWER-A physical obstruction that is intended to prevent contact
with equipment or energized electrical conductors and circuit parts or to prevent
unauthorized access to a work area
Bonded (Bonding) - CORRECT ANSWER-Connected to establish electrical continuity
and conductivity
Bonding Conductor or Jumper - CORRECT ANSWER-A reliable conductor to ensure
the required electrical conductivity between metal parts required to be electrically
connected
Boundary, Arc Flash - CORRECT ANSWER-When an arc flash hazard exists, an
approach limit at a distance from a prospective arc source within which a person could
receive a second degree burn if an electrical arc flash were to occur
Boundary, Restricted Approach - CORRECT ANSWER-An approach limit at a distance
from an exposed energized electrical conductor or circuit part within which there is an
increased likelihood of electric shock, due to electrical arc-over combined with
inadvertent movement, for personnel working in close proximity to the energized
electrical conductor or circuit part
Branch Circuit - CORRECT ANSWER-The circuit conductors between the final
overcurrent device protecting the circuit and the outlet(s)
Building - CORRECT ANSWER-A structure that stands alone or that is cut off from
adjoining structures by fire walls with all openings therein protected by approved fire
doors
Cabinet - CORRECT ANSWER-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
Circuit Breaker - CORRECT ANSWER-A device designed to open and close 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
Conductive - CORRECT ANSWER-Suitable for carrying electric current
Conductor, Bare - CORRECT ANSWER-A conductor having no covering or electrical
insulation whatsoever
Conductor, Covered - CORRECT ANSWER-A conductor encased within material of
composition or thickness that is not recognized by this Code as electrical insulation
Conductor, Insulated - CORRECT ANSWER-A conductor encased within material of
composition or thickness that is recognized by this Code as electrical insulation
Controller - CORRECT ANSWER-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
Current-Limiting Overcurrent Protective Device - CORRECT ANSWER-A device that,
when interrupting currents in its current-limiting range, reduces the current flowing in the
faulted circuit to a magnitude substantially less than that obtainable in the same circuit if
the device were replaced with a solid conductor having comparable impedance
Cutout - CORRECT ANSWER-An assembly of a fuse support with either a fuse-holder,
fuse carrier, or disconnecting blade. The fuseholder or fuse carrier may include a
conducting element (fuse link), or may act as the disconnecting blade by the inclusion of
a nonfusible member
De-energized - CORRECT ANSWER-Free from any electrical connection to a source of
potential difference and from electrical charge; not having a potential different from that
of the earth
Device - CORRECT ANSWER-A unit of electrical system, other than a conductor, that
carries or controls electric energy as its principal function
Disconnecting Means - CORRECT ANSWER-A device, or group of devices, or other
means by which the conductors of a circuit can be disconnected from their source of
supply
Disconnecting (or Isolating) Switch (Disconnector, Isolator) - CORRECT ANSWER-A
mechanical switching decide used for isolating a circuit or equipment from a source of
power
Dwelling Unit - CORRECT ANSWER-A single unit providing complete and independent
living facilities for one or more persons, including permanent provisions for living,
sleeping, cooking, and sanitation
Electrical Hazard - CORRECT ANSWER-A dangerous condition such that contact or
equipment failure can result in electric shock, arc flash burn, thermal burn, or blast
Electrical Safety - CORRECT ANSWER-Recognizing hazards associated with the use
of electrical energy and taking precautions so that hazards do not cause injury or death
Electrically Safe Work Conditions - CORRECT ANSWER-A state in which an electrical
conductor or circuit part has been disconnected from energized parts, locked/tagged in
accordance with established standards, tested to ensure the absence of voltage, and
grounded if determined necessary
Enclosed - CORRECT ANSWER-Surrounded by a case, housing, fence, or wall(s) that
prevents persons from accidentally contacting energized parts
Enclosure - CORRECT ANSWER-The case or housing of apparatus or the fence or
walls surrounding an installation to prevent personnel from accidentally contacting
energized electrical conductors or circuit parts or to protect the equipment from physical
damage
Energized - CORRECT ANSWER-Electrically connected to, or is, a source of voltage
Equipment - CORRECT ANSWER-A general term, including fittings, decides,
appliances, luminaires, apparatus, machinery, and the like used as a part of, or in
connection with, an electrical installation
Exposed (as applied to energized electrical conductors or circuit parts) - CORRECT
ANSWER-Capable of being inadvertently touched or approached nearer than a safe
distance by a person. It is applied to electrical conductors or circuit parts that are not
suitably guarded, isolated, or insulated
Exposed (as applied to wiring methods) - CORRECT ANSWER-On or attached to the
surface or behind panels designed to allow access
Fitting - CORRECT ANSWER-An accessory such as a locknut, bushing, or other part of
a wiring system that is intended primarily to perform a mechanical rather than an
electrical function
Fuse - CORRECT ANSWER-An overcurrent protective device with a circuit-opening
fusible part that is heated and severed by the passage of overcurrent through it
Ground - CORRECT ANSWER-The earth
Ground Fault - CORRECT ANSWER-An unintentional, electrically conducting
connection between an ungrounded conductor of an electrical circuit and the normally
non-current-carrying conductors, metallic enclosures, metallic raceways, metallic
equipment, or earth
Grounded (Grouding) - CORRECT ANSWER-Connected (connecting) to ground or to a
conductive body that extends the ground connection
Grounded, Solidly - CORRECT ANSWER-Connected to ground without inserting any
resistor or impedance device
Grounded Conductor - CORRECT ANSWER-A system or circuit conductor that is
intentionally grounded
Ground-Fault Circuit Interrupter (GFCI) - CORRECT ANSWER-A device intended for
the protection of personnel that functions to de-energize a circuit or portion thereof
within an established period of time when a current to ground exceeds the values
established for a Class A device
Grounding Conductor, Equipment (EGC) - CORRECT ANSWER-The conductive
path(s) that provides a ground-fault current path and connects normally non-currentcarrying metal parts of equipment together and to the system grounded conductor or to
the grounding electrode conductor, or both
Grounding Electrode - CORRECT ANSWER-A conducting object through which a direct
connection to earth is established
Grounding Electrode Conductor - CORRECT ANSWER-A conductor used to connect
the system grounded conductor or the equipment to a grounding electrode or to a point
on the grounding electrode system
Guarded - CORRECT ANSWER-Covered, shielded, fenced, enclosed, or otherwise
protected by means of suitable covers, casings, barriers, rails, screens mats, or
platforms to remove the likelihood of approach or contact by persons or objects to a
point of danger
Hazard - CORRECT ANSWER-A source of possible injury or damage to health
Hazardous - CORRECT ANSWER-Involving exposure to at least one hazard
Incident Energy - CORRECT ANSWER-The amount of thermal energy impressed on a
surface, a certain distance from the source, generated during an electrical arc event.
Incident energy is typically expressed in calories per square centimeter (cal/cm^2)
Incident Energy Analysis - CORRECT ANSWER-A component of an arc flash risk
assessment used to predict the incident energy of an arc flash for a specified set of
conditions
Insulated - CORRECT ANSWER-Separated from other conducting surfaces by a
dielectric (including air space) offering a high resistance to the passage of current
Interrupter Switch - CORRECT ANSWER-A switch capable of making, carrying, and
interrupting specified currents
Interrupting Rating - CORRECT ANSWER-The highest current at rated voltage that a
device is identified to interrupt under standard test conditions
Isolated (as applied to location) - CORRECT ANSWER-Not readily accessible to
persons unless special means for access are used
Labeled - CORRECT ANSWER-Equipment or materials to which has been attached a
label, symbol, or other identifying mark of an organization that is acceptable to the
authority having jurisdiction and concerned with product evaluation, that maintains
periodic inspection of production of labeled equipment or materials, and by whose
labeling the manufacturer indicated compliance with appropriate standards or
performance in a specified manner
Listed - CORRECT ANSWER-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 or 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
Luminaire - CORRECT ANSWER-A complete lighting unit consisting of a light source,
such as a lamp or lamps, together with the parts designed to position the light source
and connect it to the power supply. It may also include parts to protect the light source
or the ballast or to distribute the light. A lampholder itself is not a luminaire [Show Less]