[NEC2020] Article 100 Definitions Flashcards
Ampacity:
The maximum current, in amperes, that a conductor can carry continuously under
the conditions of use without exceeding its temperature rating (CMP-6)
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. (CMP-17)
Authority Having Jurisdiction (AHJ):
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. (CMP-1)
Bathroom:
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. (CMP-2)
Branch Circuit:
The circuit conductors between the final overcurrent device protecting the
circuit and the outlet(s). (CMP-2)
Clothes Closet:
A non habitable room or space intended primarily for storage of garments and apparel. (CMP-1)
Conductor, Insulated:
A conductor encased within material of composition and thickness that is recognize by this Code as electrical insulation. (CMP-6)
Device:
A unit of an electrical system, other than a conductor, that carries or controls electric
energy as it’s principal function. (CMP-1)
Dwelling One-Family:
A building that consists solely of one dwelling unit. (CMP-1)
Enclosed:
Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts (CMP-1)
Energized:
Electrically connected to, or is, a source of voltage. (CMP-1)
Equipment:
A general term, including fittings, devices, appliances, luminaires, apparatus,
machinery, and the like used as a part of, or in connection with, an electrical
installation. (CMP-1)
Feeder:
All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch circuit overcurrent device. (CMP-10)
Fitting:
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. (CMP-1)
Garage:
A building or portion of a building in which one or more self-propelled vehicles can be
kept for use, sale, storage, rental, repair, exhibition, or demonstration purposes.
(CMP-1)
Grounding Conductor, Equipment (EGC):
A conductive path(s) that is part of an effective ground-fault current path and connects normally non-current carrying metal parts of equipment together and to the system grounded conductor or to the grounding electrode conductor, or both. (CMP-5)
Ground Fault:
An unintentional, electrically conductive connection between an ungrounded
conductor of an electrical circuit and the normally non-current-carrying conductors,
metallic enclosures, metallic raceways, metallic equipment, or earth. (CMP-5)
Neutral Conductor:
The conductor connected to the neutral point of a system that is intended to carry current under normal conditions. (CMP-5)
Outlet:
A point on the wiring system at which current is taken to supply utilization equipment. (CMP-1)
Overcurrent:
Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault. (CMP-10)
Utilization Equipment:
Equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes. (CMP-1)
Voltage (of a circuit):
The greatest root-mean-square (RMS) (effective) difference of potential between any two conductors of the circuit concerned. (CMP-1)
Voltage, Nominal:
A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class (e.g., 120/240 volts, 480Y/277 volts, 600 volts.
(CMP-1)
