PEC pg. 6-10
Hermatic Refrigerant Motor-Compressor.
A combination consisting of a compressor and motor, both of which are enclosed in the same housing, with no external shaft or shaft seals, with the motor operating in the refrigerant.
Nonencendive circuit (As applied to hazardous classified location)
A circuit, other then field wiring, in which any are or thermal effect produced under intended operating conditions of the equipment, in capable, under specified test conditions, of igniting
Luminaire
A complete lighting unit consisting of lamp or lamps together with the parts designed to distribute the light, to position and protect the lamps and ballast (where applicable), and to connect the lamps to the power supply
Nonincendive Component (as applied to Hazard (Classified) Locations
A component having contacts for making or breaking an incendive circuit and the contacting mechanism is constructed so ther the component is incapable of igniting the specified flammable gas-air or vapor-air mixture. The housing of a nonincendive component is not intended to exclude the flammable atmosphere or contain an explosion
Grounded fault circuit interrupter (GFCI)
A device intended for the protection of personnel that functions to de-energize a circuit or portion thereof wahin an established period of time when a current to ground exceeds the values established for a Class A device
Grounding Electrode
A device that establishes electrical connection to the earth
Intersystem Bonding Termination.
A device that provides a theans for connecting intersystem bonding conductors for communications systems to the grounding electrode system
Noconductive Optical Fiber Cable
A factory sembly of one or more optical fibers having an overall covering and containing no electrically conductive
Electrical sign
A fixed, stationary, or portable self- contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols designed to convey information or attraction
National Electrical Engineering Law
A law enacted by Congress providing for a more responsive and comprehensive regulation for the practice, licensing and registration of electrical engineers and electricians otherwise referred to as Republic Act 7920 (RA 7920) future law that supersedes it.
Nonlinear Load
A load where the wave shape of the steady-state current does not follow the wave shape- the applied voltage
Location Dry
A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction
Lighting Track (Track Lighting)
A manufactured assembly designed to support and energize luminaires the track his length can be altered by the addition or subtraction of sections of track.
Innerduct
A nonmetallic raceway placed within larger raceway. interactive
Festoon lighting
A string of outdoor lights that is suspended between two points
Hybrid system
A system comprised of multiple power sources. These power sources could include photovoltaic, wind, micro-hydro generators, engine- driven generators, and others, but do not include electri power production and distribution network systems Energy storage systems such as batteries, flywheels, or superconducting magnetic storage equipment do not constitute a power source for the purpose of this definition. The energy regenerated by an overhauling (descending) elevator does not constitute a power source for the purpose of this definition.
Grounded Conductor
A system or circuit conductor that is intentionally grounded
Multi-outlet assembly
A type of surface, flush, or freestanding raceway designed to hold conductors and receptacles, assembled in the field or at the factory.
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 current device
Fitting
An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perfom a mechanical rather than an electrical function
Guest Room
An accommodation combining living.. sleeping, sanitary, and storage facilities within a compartment.
Guest Suite
An accommodation with two or more contiguous rooms comprising a compartment, with or without doors between such rooms, that provides living. sleeping, sanitary, and storage facilities.
Kitchen
An area with a sink and permanent provisions for food preparation and cooking
Intrically Safe System (as applied Hassis (Classified) Locations)
An assembly of interconnected intrinsically safe apparatus, associated apparatus, and interconnecting cables, in that those parts of the system that may be used in hazardous (classified) locations intrinsically safe cucuits
Motor control center
An assembly of one or more enclosed sections having a common power bus and principally containing motor control units.
industrial control switches
An assembly of two or more components consisting of one of the following (1) power circuit components only, such as motor controllers, overload relays, fused disconnect switches,
Interactive system
An electric power system that is operating in parallel with and capable of delivering energy to an electric primary source supply system.
Ground-fault current path
An electrically conductive path from the point of a ground fault on a wiring system through normally non-current-carrying conductors, equipment, or the earth to electrical supply source.
Handhole Enclosure
An enclosure identified for use in underground systems, provided with an open or closed bottom, and sized to allow personnel to reach into, but not enter, for the purpose of installing, operating, or maintaining equipment or wiring or both.
Interactive Inverter
An inverter intended for use in parallel with an electric utility to supply common loads that may deliver power to the utility.
Lighting outlet
An outlet intended for the direct connection of a lampholder, a luminaire (lighting fixture), or a pendant cord terminating in a lampholder
Electronically Actuated Fuse
An uvercatent protective device that generally consists of a contra module that provides current-sensing electronically derived time-current characteristics, energy to initiate tripping, and an interrupting module that interrupts current when an overcurrent occurs. Such fuses may or may not operate in a current-limiting fashion, depending on the type of control selected
Hoistway
Any shaftway, hatchway, well hole, or other vertical opening or space in which an elevator or dumbwaiter is designed to operate.
Intrinsically Safe Apparatus
Apparatus in which all the circuits are intrinsically safe.
Exposed (as applied to live parts)
Capable of being inadvertently touched or approached nearer than a safe distance by a person. It is applied to parts that are not suitably guarded, isolated, or insulated.
Externally Operatable
Capable of being operated without exposing the operator to contact with live parts.
Grounded (grounding)
Connected (connecting) to earth or to some conducting body that serves in place of the earth
Grounded Solidly
Connected to ground without inserting any resistor or impedance device
Guarded
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.
oil immersion
Electrical equipment immersed protective liquid in voch a way that an explosive atmosphere that may be above the liquid or outside the enchiure cannot be ignited
Energized
Electrically connected to a source of voltage
3, 3S, 3SX, 4, 4X, 5, 6, 6P, 12, 12K, and 13
Enclosure Types
Live parts
Energized conductive components
Information Technology Equipment
Equipment and systems rated 1000 volts or less, normally found in offices or other business establishments and similar environments classified as ordinary locations, that are used for creation and manipulation of data, voice, video, and similar signals that are not communications equipment as defined in Part 1.0.1 and do not process communications circuits as defined in 8.0.1.2.
Equipment Explosion proof
Equipment 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 extemal temperature that a surrounding flammable atmosphere will not be ignited thereby.
Nonincendive Equipment (as applied to Hazardous Classified) Locations).
Equipment having electrical electronic circuitry that is incapable, under operating conditions, of causing ignition of a specified flammable gas-air, vapor-air, or dust-air mixture due to arcing or thermal means.
Labeled
Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization that is concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner.
Hermetically Sealed fas applied to Hazardous (Classified) Locations).
Equipment sealed against the entrance of an exter- nal atmosphere where the seal is made by fusion, for example, soldering, brazing, welding, or the fusion of glass to metal.
Mobile Equipment
Equipment with electrical components suitable to be moved only with mechanical aids or is provided with wheels for movement by person(s) or powered devices.
Listed
Equipment, materials, or services included in a list published by an organization that is concemed 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 the equipment, material, or services ether meets appropriate designated standards or has been tested and found suitable for a specified purpose
Location Wet
Installations underground or in oncrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather.
Location Damp
Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture
Isolated (as applied to location).
Not readily accessible to persons unless special means for access are used.
Exposed (as applied to wiring methods).
On or attached to the surface or behind panels designed to allow sess
Effective Power Production and Distribution Network
Power production, distribution, and utilization equipment and facilities, such as electric utility systems that deliver electric power to the connected loads, that are external to and not controlled by an interactive system.
Identified (as applied to equipment)
Recognizable 2 table for the specific purpose, function, use, ment, application, and so forth, where described in a particular Code requirement
Nonautomatic
Requiring human intervention to perform a function
Enclosed
Surrounded by a case, housing, fence, or walls) that prevents persons from accidentally contacting energized parts
Electric Discharge lighting
Systems of illumination utilizing fluorescent lamps, high-intensity discharg (HID) lamps, or neon tubing
Grounding Conductor Equipment (GCE)
The conductive path(s) that provides a 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
Enclosure
The case or housing of apparatus, or the fence or walls surrounding an installation to prevent personnel from accidentally contacting energized parts or to protect the equipment from physical damage.
Neutral point
The common point on a wye-connection in a polyphase system or midpoint on a single-phase, 3-wire system, or midpoint of a single-phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct-current system.
Neutral Conductor
The conductor connected to the neutral point of a system that is intended to carry current under normal conditions.
Grounding Electrode Conductor
The conductor used to connect the grounding electrode(s) to the equipment grounding conductor, to the grounded conductor, or to both, at the service, at each building or structure where supplied by a feeder(s) or branch circuit(s), or at the source of a separately derived system.
Interrupting rating
The highest current at rated voltage that a device is intended to interrupt under standard test conditions
In Sight From (Within Sight From, Within Sight)
Where this Code specifies that one equipment shall be "in sight from," "within sight from," or "within sight," and so forth, of another equipment, the specified equipment is to be visible and not more than 15 m distant from the other
Nonincendive Field Wiring (as applied to Hazardous (Classified) Locations].
Wiring that enters or leaves an equipment enclosure and, under normal operating conditions of the equipment, is not capable, due to arcing or thermal effects, of igniting the flammable g air, vapor-air, or dust-air mixture. Normal operation includes opening, shorting, or grounding the field wiring
Control Drawing (As applied to Hazardous (Classified) Location)., drawing
___. A ___ or other document provided by the manufacturer of the intrinsically safe or associated apparatus, or of the nonincendive field wiring apparatus, that details the allowed interconnections between the intrinsically safe and associated apparatus.
Dwelling, One-Family
___. A building that consists solely of one dwelling unit
Dwelling, Two-Family
___. A building that consists solely of two dwelling units
Dwelling, Multifamily
___. A building that contains three or more dwelling units.
Cooking Unit, Counter-Mounted
___. A cooking appliance designed for mounting in or on a counter and consisting of one or more heating elements, internal wiring, and built-in or mountable controls.
Controller, govern
___. A device or group of devices that serves to ___, in some predetermined manner, the electric power delivered to the apparatus to which it is connected.
Disconnecting Means., disconnected
___. A device, or group of devices, or other means by which the conductors of a circuit can be ___ from their source of supply
Cord Connector (As applied to Hazardous (Classified) Locations) ; chord to a box
___. A fitting intended to terminate a ___ or similar device and reduce the strain at points of termination and may include an explosion proof, a dust-ignitionproof, or a flameproof seal.
Dwelling Unit
___. A single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
Device, utilize electric energy
___. A unit of an electrical system, other than a conductor, that is intended to carry or control but not ___.
Cutout Box.
___. An enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure.
Copper-Clad Aluminum Conductors.
___. Conductors drawn from a copper-clad aluminum rod with the copper metallurgicaly bonded to an aluminum core, where copper forms a minimum of 10 percent of the cross-sectional area of a solid conductor or each strand of a stranded conductor
Dustlight; enclosing case
___. Enclosures constructed so that dust will not enter the ___ under specified test conditions
Dust Ignitionproof; dust; arcs, sparks, or heat
___. Equipment enclosed in a manner that excludes ___ and does not permit ___ otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust or in the vicinity of the enclosure
Duty, Periodic
___. Intermittent operation in which the load conditions are regularly recurrent.
Coordination, Selective (Selective Coordination)?
___. Localization of an overcurrent condition to restrict outages to the circuit or equipment affected, accomplish by the selection and installation of overcurrent protective devices and their ratings or settings for the full range of available currents, from overall to the maximum available fault current, and for the full range of overcurrent protective device opening times associated with those overcurrent.
Duty, Continuous
___. Operation at a substantially constant load for an indefinitely long time
Duty, Varying
___. Operation at loads and for intervals of time, both of which may be subjected to wide variation.
Duty, Short-Time
___. Operation at substantially constant load for a short and definite, specified time.
Duty, Intermittent
___. Operation for alternate intervals of (1) load and no load; or (2) load and rest; or (3) load, no load, and rest.
Control Circuit, control apparatus or system
___. The circuit of a ___ that carries the electric signals directing the performance of the controller but does not carry the main power current
Demand Factor.
___. The ratio of the maximum demand of a system, or part of a system, to the total connected load of a system or the part of the system under consideration.
Dead Front
___. Without live parts exposed to a person on the operating side of the equipment.
Garage
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
Effective ground fault current path
conductive path designed and intended to carry current underground-fault conditions from the point of a guard fault on a wiring system to the electrical supply source and that facilitates the operation of the overcurrent
Equipment
general term including material, fittings. devices, appliances, luminaires, apparatus, and the like used as a part of, or in connection with, an electrical installation
Ground-Fault Protection of Equipment
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. This protection is provided at current levels less than those required to protect conductors from damage through the operation of a supply circuit overcurrent device.
ground
the earth
