PEC Definition of Terms PDF

ARTICLE 1.0 - INTRODUCTION Chapter 1. General ARTICLE 1.0 - INTRODUCTION (6) Airfields 1.0.1.1 Purpose. (7) Railways swit...

ARTICLE 1.0 - INTRODUCTION Chapter 1. General ARTICLE 1.0 - INTRODUCTION (6) Airfields 1.0.1.1 Purpose. (7) Railways switchyards (A) Practical Safeguarding. The purpose of this Code (8) Yards, carnival, parks, parking and other lots is the practical safeguarding of persons and property (9) Quarries and mines from hazards arising from the use of electricity. (I 0) Watercraft (B) Adequacy. This Code contains provisions that ( 11) Dockyards are considered minimum requirements necessary for safety. Compliance therewith and proper maintenance (12) Trailers will result in an installation that is essentially free (13) Mobile homes and recreational vehicles from hazard but not necessarily efficient, convenient, or adequate for good service or future expansion of (14) Offshore facilities electrical use. (B) Not Covered. This Code does not cover the FPN: Hazards often occur because of overloading of wiring systems by following: methods or usage not in conformity with this Code. Thjs occurs because initial wiring did not provide for increases in the use of electricity. An (1) Installations in railway rolling stock, aircraft, or initial adequate installation and reasonable provisions for system changes provide for future increases in the use of electricity. automotive vehicles (C) Intention. This Code is intended as a design (2) Installations of railways for generation, specification or an instruction manual to qualified transformation, transmission, or distribution of persons. power used exclusively for operation of rolling stock (D) Relation to Other International Standards. The requirements in this Code address the fundamental 1.0.1.3 Authority. principles of protection for safety contained in Section (A) This Code has been approved and adopted by 131 of International Electrotechnical Commission the Board of Electrical Engineering, Professional Standard 60364-1, Electrical Installations ofBuildings. Regulation Commission. FPN: IEC 60364-1 , Section 131. Contains fundamental principles (B) By virtue of authority vested in the Board under of protection for safety that encompass protection against thermal effects, protection against overcurrent, protection against fault the Republic Act 7920 or national electrical engineering currents, and protection against overvoltage. All of these potential law, it hereby direct strict adherence to the provisions of hazards are addressed by the requirements in this Code. this Code. 1.0.1.2 Scope. 1.0.1.4 Enforcement. (A) Covered. This Code covers the installation of (A) This Code is intended for mandatory application electrical conductors, equipment, and raceways; by the Office of the Building Official/EE over electrical monitoring, signaling, and communications conductors, installations. equipment, and raceways; and optical fiber cables and (B) The Office of the Building Official/EE shall have raceways installed within or on, to or from: the responsibility of implementing the provisions of (1) Public and private buildings, including but not this Code. limited to residential, commercial, industrial, (C) This Code may require new products, constructions, institutional, cultural, agricultural, agro- or materials that may not yet be available at the time industrial, planned unit development and all other this Code is adopted. In such event, the Office of buildings/premises that may require practical the Building Official/EE may permit the use of the safeguarding of persons and property from the products, constructions, or materials that comply with hazards arising from the use of electricity. the most recent previous edition of this Code adopted (2) Electric generating plants by the National Building Code. (3) Industrial plants FPN: Application of electrical products and equipment for additional installation or replacement is suggested to (4) Transformer stations be consulted with a licensed electrical practitioner prior to installation for safety. Failure to do so may result in fire, (5) Permanent and temporary substations, etc. serious injury, or death.  ARTICLE 1.0 - INTRODUCTION 1.0.1.5 Mandatory Rules, Permissive Rules, It is the intent of this Code that factory-installed internal Explanatory Material, and Appendices. wiring or the construction of equipment need not be inspected at the time of installation of the equipment, (A) Mandatory Rules. Mandatory rules of this Code except to detect alterations or damage, if the equipment are those that identify actions that are specifically has been listed by a qualified electrical testing laboratory required or prohibited and are characterized by the use that is recognized as having the facilities described in of the terms shall or shall not. the preceding paragraph and that requires suitability for (B) Permissive Rules. Permissive rules of this Code installation in accordance with this Code. are those that identify actions that are allowed but FPN No. 1: See requirements in Section 1.10.1.3. not required, are normally used to describe options or FPN No. 2: Listed is defined in Article 1.1 alternative methods, and are characterized by the use FPN No. 3: Appendix F contains an informative list of product of the terms shall be permitted or shall not be required. safety standards for electrical equipment. (C) Explanatory Material. Explanatory material, such FPN No. 4: Application of electrical equipment and devices as references to other standards, references to related shall always be consulted with a licensed electrical practitioner. sections of this Code, or information related to a Code Failure to do so may result in fire, serious injury, or death. rnle, is included in this Code in the form of fine print 1.0.1.8 Wiring Planning. notes (FPN). Fine print notes are informational only and are not enforceable as requirements of this Code. (A) Future Expansion and Convenience. Plans and specifications that provide ample space in raceways, Brackets containing section references to another NFPA spare raceways, and additional spaces allow for future document are for informational purposes only and increases in electric power and communication circuits. are provided as a guide to indicate the source of the Distribution centers located in readily accessible extracted text. These bracketed references immediately locations provide convenience and safety of operation. follow the extracted text. (B) Number of Circuits in Enclosures. It is elsewhere (D) Appendices. Nonmandatory information relative provided in this Code that the number of wires and to the use of the PEC J is provided in appendices. circuits confined in a single enclosure be varyingly Appendices are not part of the erforceable requirements restricted. Limiting the number of circuits in a single of the PECJ, but are included for information purposes enclosure will minimizes the effects from a short circuit only. or ground fault. 1.0.1.6 Interpretation. Interpretation of this Code 1.0.1.9 Units of Measurement. shall be by licensed electrical practitioners. In case of conflicting interpretations, these may be referred to (A) Measurement Systems of Preference. For the the Philippine Electrical Code Part 1 Committee for purpose of this Code, metric units of measurement interpretation. Should disagreement remain, thereafter, are in accordance with the modernized metric system the Committee's interpretation shall be referred to the known as the International System of Units (SI). Board of Electrical Engineering who shall render the (B) Trade Sizes. Where the actual measured size of a final decision. product is not the same as the nominal size, trade size 1.0.1.7 Examination of Equipment for Safety. For designators shall be used rather than dimensions. Trade specific items of equipment and materials referred practices shall be followed in all cases. to in this Code, examinations for safety made under (C) Extracted Material. Where material is extracted standard conditions will provide a basis for approval from another standard, the context of the original where the record is made generally available through material shall not be compromised or violated. Any promulgation by organizations properly equipped and editing of the extracted text shall be confined to making qualified for experimental testing, inspections of the run the style consistent with that of the PEC 1. of goods at factories, and service-value determination FPN: SI conversions are based on IEEE/ASTM SI 10-1997, Standard through field inspections. This avoids the necessity for the Use of the International System of Units (SI): The Modem for repetition of examinations by different examiners, :vfetric System. frequently with inadequate facilities for such work, and 1.0.1.10 Apprenticeship. the confusion that would result from conflicting reports as to the suitability of devices and materials examined (A) Republic Act 7920 or the national electrical for a given purpose. engineering law requires apprenticeship as one of 2  ARTICLE 1.1 - DEFINITIONS the qualifications to the registration and licensure Adjustable Speed Drive. Power conversion equipment examinations for Registered Master Electrician that provides a means of adjusting the speed of an (RME), in order to practice electrical engineering in electric motor. the Philippines. Knowledge and understanding of the FPN: A variable frequency drive is one type of electronic adjustable Philippine Electrical Code, Parts 1 and 2 (PECl and speed drive that controls the rotational speed of an ac electric motor by PEC2) form part of the examinations given. controlling the frequency and voltage of the electrical power supplied to the motor. (B) An apprentice shall undergo training under a person holding a valid certificate of registration and a Ampacity. The current, in amperes, that a conductor valid professional license for the practice of electrical can carry continuously under the conditions of use engineering under Republic Act 7920 or the national without exceeding its temperature rating. electrical engineering Jaw. Appliance. Utilization equipment, generally other than industrial, that is normally built in standardized sizes or 1.0.1.11 Services of Licensed Electrical Practitioner. types and is installed or connected as a unit to perform For decisions and actions involving a knowledge one or more functions such as clothes washing, air of electrical engineering and/or training in electrical conditioning, food mixing, deep frying, and so forth. installations and practices, the services of a licensed Approved. Equipment and materials; and installation, electrical practitioner is required. testing and commissioning methods, recognized as acceptable by local and international standards-setting ARTICLE 1.1 - DEFINITIONS organizations - properly equipped and qualified for 1.1.1.1 Scope. This article contains only those testing, inspections of the run of goods at factories, and definitions essential to the application of this Code. It is service-value determination through field inspections not intended to include commonly defined general terms - and/or as permitted by relevant and applicable or commonly defined technical terms from related codes government regulatory codes. and standards. In general, only those terms that are used FPN: An example of government regulatory codes are the in two or more articles are defined in Article 1.1. Other Philippine Electrical Code, Part I and Part 2. definitions are included in the article in which they are used but may be referenced in Article 1.1. Askarel. A generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical Part 1.1.1 of this article contains definitions intended insulating media. to apply wherever the tem1s are used throughout this FPN: Askarels of various compositional types are used. Under arcing Code. Part 1.1.2 contains definitions applicable to the conditions, the gases produced, while consisting predominantly of installations and equipment operating at over 1000 noncombustible hydrogen chloride, can include varying amounts of volts, nominal. combustible gases, depending on the askarel type. 1.1.1 General Associated Apparatus [as applied to Hazardous (Classified) Locations]. Apparatus in which the circuits Accessible (as applied to equipment). Admitting close are not necessarily intrinsically safe themselves but that approach; not guarded by locked doors, elevation, or affects the energy in the intrinsically safe circuits and is other effective means. relied on to maintain intrinsic safety. Such apparatus is Accessible (as applied to wiring methods). Capable one of the following: of being removed or exposed without damaging the (1) Electrical apparatus that has an alternative type building structure or finish or not permanently closed in of protection for use in the appropriate hazardous by the structure or finish of the building. (classified) location Accessible, Readily (Readily Accessible). Capable (2) Electrical apparatus not so protected that shall not of being reached quickly for operation, renewal, or be used within a hazardous (classified) location inspections without requiring those to whom ready FPN No. 1: Associated apparatus has identified intrinsically safe access is requisite to take actions such as to use tools connections for intrinsically safe apparatus and also may have (other than keys), to climb over or under, to remove connections for nonintrinsically safe apparatus. obstacles or to resort to portable ladders, and so forth. FPN No. 2: An example of associated apparatus is an intrinsic FPN: Use of keys is a common practice under controlled or safety barrier, which is a network designed to limit the energy supervised conditions and a common alternative to the ready (voltage and current) available to the protected circuit in the access requirements under such supervised conditions as provided hazardous (classified) location, under specified fault conditions. elsewhere in the NEC 3  ARTICLE 1.1 - DEFINITIONS Associated Nonincendive Field Wiring Apparatus [as applied to Hazardous (Classified) Locations]. Branch Circuit, General-Purpose. A branch circuit Apparatus in which the circuits are not necessarily that supplies two or more receptacles or outlets for nonincendive themselves but that affect the energy in lighting and appliances. nonincendive field wiring circuits and are relied upon Branch Circuit, Individual. A branch circuit that to maintain nonincendive energy levels. Such apparatus supplies only one utilization equipment. are one of the following: Branch Circuit, Multiwire. A branch circuit that ( 1) Electrical apparatus that has an alternative type consists of two or more ungrounded conductors that of protection for use in the appropriate hazardous have a voltage between them, and a grounded conductor (classified) location that has equal voltage between it and each ungrounded (2) Electrical apparatus not so protected that shall not conductor of the circuit and that is be used in a hazardous ( classified) location Building. A structure that stands alone or that is FPN: Associated nonincendive field wiring apparatus has separated from adjoining structures by fire walls. designated associated nonincendive field wiring apparatus connections for nonincendive field wiring apparatus and may also Building Official. The government official appointed have connections for other electrical apparatus. by the Secretary of the Department of Public Works and who is responsible for enforcing the provisions of Attachment Plug (Plug Cap) (Plug). A device that, the National Building Code of the Philippines (NBC) by insertion in a receptacle, establishes a connection created under Presidential Decree 1096 (PD 1096) and between the conductors of the attached flexible cord and its Implementing Rules and Regulations; and charged the conductors connected permanently to the receptacle. with the duties of issuing building permits, notices and Automatic. Performing a function without the necessity certificates. of human intervention. Building Official, Office of the. The place of business Bathroom. An area including a basin with one or more of the Building Official where processing of permits, of the following: a toilet, a tub, or a shower. notices, certificates and other related documents are undertaken. Also referred to as OBO in this Code. Battery System. Interconnected battery subsystems consisting of one or more storage batteries and battery Building Official/EE, Office of the. A licensed chargers, and can include inverters, converters, and electrical practitioner employed in the Office of the associated electrical equipment. Building Official responsible for overseeing electrical Bonded (Bonding). Connected to establish electrical installations and equipment for compliance to provisions continuity and conductivity. of the Philippine Electrical Code, Part 1 (PECl), and for the approval of electrical permits and certificates Bonding Conductor or Jumper. A reliable conductor to ensure the required electrical conductivity between issuances. Also referred to as OBO/EE in this Code. metal parts required to be electrically connected. FPN: A licensed electrical practitioner is a Registered Master Electrician (RME), Registered Electrical Engineer (REE) or Bonding Jumper, Equipment. The connection Professional Electrical Engineer (PEE) under Republic Act between two or more portions of the equipment 7920 or national electrical engineering law with their respective grounding conductor. duties and responsibilities. See definition of Licensed Electrical Bonding Jumper, Main. The connection between Practitioner. the grounded circuit conductor and the equipment grounding conductor at the service. Cabinet. An enclosure that is designed for either surface mounting or flush mounting and is provided Bonding Jumper, System. The connection between with a frame, mat, or trim in which a swinging door or the grounded circuit conductor and the equipment doors are or can be hung. grounding conductor at a separately derived system. Cable RoutingAssembly.Asingle channel or connected Branch Circuit. The circuit conductors between the final overcurrent device protecting the circuit and the multiple channels, as well as associated fittings, forming outlet(s). a structural system that is used to support and route communications wires and cables, optical fiber cables, Branch Circuit, Appliance. A branch circuit that data cables associated with information technology and supplies energy to one or more outlets to which communications equipment, Class 2, Class 3, and Type appliances are to be connected and that has no PLTC cables, and power-limited fire alarm cables in permanently connected luminaires that are not a part of plenum, riser, and general-purpose applications. an appliance. 4  ARTICLE 1.1 - DEFINITIONS Combustible Gas Detection System [as applied to Charge Controller. Equipment that controls de voltage Hazardous (Classified) Locations]. A protection or de current, or both, and that is used to charge a battery technique utilizing stationary gas detectors in industrial or other energy storage device. establishments. Circuit Breaker. A device designed to open and close Communications Equipment. The electronic a circuit by nonautomatic means and to open the circuit equipment that performs the telecommunications automatically on a predetermined overcurrent without operations for the transmission of audio, video, and damage to itself when properly applied within its rating. data, and includes power equipment ( e.g. , de converters, FPN: The automatic opening means can be integral, direct inverters, and batteries), technical support equipment acting with the circuit breaker, or remote from the circuit (e.g., computers), and conductors dedicated solely to breaker when properly applied within its rating. the operation of the equipment. Adjustable (as applied to circuit breakers). A FPN: As the telecommunications network transitions to a more qualifying term indicating that the circuit breaker data-centric network, computers, routers, servers, and their can be set to trip at various values of current, time, or powering equipment, are becoming essential to the transmission both, within a predetermined range. of audio, video, and data and are finding increasing application in communications equipment installations. Instantaneous Trip (as applied to circuit breakers). A qualifying term indicating that no delay is purposely Composite Optical Fiber Cable. A cable containing optical fibers and current-carrying electrical conductors. introduced in the tripping action of the circuit breaker. Concealed. Rendered inaccessible by the structure or Inverse Time (as applied to circuit breakers). A finish of the building. Wires in concealed raceways are qualifying term indicating that there is purposely considered concealed, even though they may become introduced a delay in the tripping action of the circuit accessible by withdrawing them. breaker, which delay decreases as the magnitude of Conductive Optical Fiber Cable. A factory assembly the current increases. of one or more optical fibers having an overall covering Nonadjustable (as applied to circuit breakers). A and containing non- current-carrying conductive qualifying term indicating that the circuit breaker member(s) such as metallic strength member( s), does not have any adjustment to alter the value of metallic vapor barrier(s), metallic armor or metallic sheath. current at which it will trip or the time required for its operation. Conductor, Bare. A conductor having no covering or electrical insulation whatsoever. Setting (of circuit breakers). The value of current, time, or both, at which an adjustable circuit breaker Conductor, Covered. A conductor encased within is set to trip. material of composition or thickness that is not recognized by this Code as electrical insulation. Clothes Closet. A nonhabitable room or space intended primarily for storage of garments and apparel Conductor, Insulated. A conductor encased within material of composition and thickness that is recognized Coaxial Cable. A cylindrical assembly composed of by this Code as electrical insulation. a conductor centered inside a metallic tube or shield, separated by a dielectric material, and usually covered Conduit Body. A separate portion of a conduit or by an insulating jacket. tubing system that provides access through a removable cover(s) to the interior of the system at a junction of two Combustible Dust [as applied to Hazardous or more sections of the system or at a terminal point of (Classified) Locations]. Dust particles that are 500 the system. microns or smaller (i.e., material passing a U.S. No. 35 Standard Sieve as defined in ASTM Ell -2015 , Boxes such as FS and FD or larger cast or sheet metal Standard Specification for Woven Wire Test SieveCloth boxes are not classified as conduit bodies. and Test Sieves), and present a fire or explosion hazard Connector, Pressure (Solderless). A device that when dispersed and ignited in air. establishes a connection between two or more FPN: See ASTM El226-2012a, Standard Test Method for conductors or between one or more conductors and a Explosibility of Dust Clouds, or ISO 6184- l, Explosion terminal by means of mechanical pressure and without protection systems - Part 1: Determination of explosion indices the use of solder. of combustible dusts in air, for procedures for determining the explosibility of dusts. Continuous Load. A load where the maximum current is expected to continue for 3 hours or more. 5  ARTICLE 1.1 - DEFINITIONS Control Circuit. The circuit of a control apparatus Device. A unit of an electrical system, other than a or system that carries the electric signals directing the conductor, that is intended to carry or control but not performance of the controller but does not carry the utilize electric energy. main power current. Disconnecting Means. A device, or group of devices, Control Drawing [as applied to Hazardous or other means by which the conductors of a circuit can (Classified) Locations]. A drawing or other document be disconnected from their source of supply. provided by the manufacturer of the intrinsically safe or Dust-Ignitionproof [as applied to Hazardous associated apparatus, or of the nonincendive field wiring (Classified) Locations]. Equipment enclosed in a apparatus or associated nonincendive field wiring manner that excludes dusts and does not permit arcs, apparatus, that details the allowed interconnections sparks, or heat otherwise generated or liberated inside of between the intrinsically safe and associated apparatus the enclosure to cause ignition of exterior accumulations or between the nonincendive field wiring apparatus or or atmospheric suspensions of a specified dust on or in associated nonincendive field wiring apparatus. the vicinity of the enclosure. FPN: For further information on dust-ignitionproof enclosures, Controller. A device or group of devices that serves see ANSI/UL 1202-2013, Enclosures for Electrical Equipment, to govern, in some predetermined manner, the electric and ANSI/UL 1203-2013, Explosionproofand Dust-Jgnitionproof power delivered to the apparatus to which it is connected. Electrical Equipment/or Hazardous (Classified) Locations. Cooking Unit, Counter-Mounted. A cooking Dusttight. Enclosures constructed so that dust will not appliance designed for mounting in or on a counter and enter the enclosing case under specified test conditions. consisting of one or more heating elements, internal FPN No. 1: Enclosure Types 3, 3S, 3SX, 4, 4X, 5, 6, 6P, 12, 12K, wiring, and built-in or mountable controls. and 13, per ANSI/NEMA 250-2014, Enclosures for Electrical Equipment, are considered dusttight and suitable for use in Coordination, Selective (Selective Coordination). unclassified locations and in Class II, Division 2; Class III; and Localization of an overcunent condition to restrict Zone 22 hazardous (classified) locations. outages to the circuit or equipment affected, FPN No. 2: For further information, see ANSV ISA-12.12.01- accomplished by the selection and installation of 2013, Nonincendive Electrical Equipment for Use in Class I overcurrent protective devices and their ratings or and IL Division 2, and Class III, Divisions 1 and 2 Hazardous settings for the full range of available overcurrents, (Classified) Locations. from overload to the maximum available fault current, Duty, Continuous. Operation at a substantially constant and for the full range of overcurrent protective device load for an indefinitely long time. opening times associated with those overcurrent. Duty, Intermittent. Operation for alternate intervals of Copper-Clad Aluminum Conductors. Conductors (1) load and no load; or (2) load and rest; or (3) load, no drawn from a copper-clad aluminum rod with the load, and rest. copper metallurgically bonded to an aluminum core, where copper fmms a minimum of IO percent of the Duty, Periodic. Intermittent operation in which the cross-sectional area of a solid conductor or each strand load conditions are regularly recurrent. of a stranded conductor. Duty, Short-Time. Operation at a substantially constant Cord Connector [as applied to Hazardous (Classified) load for a short and definite, specified time. Locations]. A fitting intended to terminate a cord to a Duty, Varying. Operation at loads, and for intervals of box or similar device and reduce the strain at points of time, both of which may be subject to wide variation. termination and may include an explosionproof, a dust- ignitionproof, or a flameproof seal. Dwelling Unit. A single unit, providing complete and independent living facilities for one or more persons, Cutout Box. An enclosure designed for surface including permanent provisions for living, sleeping, mounting that has swinging doors or covers secured cooking, and sanitation. directly to and telescoping with the walls of the enclosure. Dwelling, One-Family. A building that consists solely of one dwelling unit. Dead Front. Without live parts exposed to a person on the operating side of the equipment. Dwelling, Two-Family. A building that consists solely of two dwelling units. Demand Factor. The ratio of the maximum demand of a system, or part of a system, to the total connected load Dwelling, Multifamily. A building that contains three of a system or the part of the system under consideration. or more dwelling units. 6  ARTICLE 1.1 - DEFINITIONS Effective Ground-Fault Current Path. An Explosionproof Equipment. Equipment enclosed intentionally constructed, low-impedance electrically in a case that is capable of withstanding an explosion conductive path designed and intended to carry current of a specified gas or vapor that may occur within it underground-fault conditions from the point of a guard and of preventing the ignition of a specified gas or fault on a wiring system to the electrical supply source vapor suiTounding the enclosure by sparks, flashes, or and that facilitates the operation of the overcurrent explosion of the gas or vapor within, and that operates protective device or groundOfault detectors. at such an external temperature that a surrounding Effective Power Production and Distribution flammable atmosphere will not be ignited thereby. Network. Power production, distribution, and utilization FPN: For further information, see ANSI/ UL 1203-2009, equipment and facilities, such as electric utility systems Explosion-Proofand Dust-Ignition-Proof Electrical Equipment that deliver electric power to the connected loads, that for Use in Hazardous (Classified) Locations. are external to and not controlled by an interactive Exposed (as applied to live parts). Capable of being system. inadvertently touched or approached nearer than a safe distance by a person. It is applied to parts that are not Electric Sign. A fixed, stationary, or portable self- suitably guarded, isolated, or insulated. contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols Exposed (as applied to wiring methods). On or designed to convey information or attract attention. attached to the surface or behind panels designed to allow access. Electric Discharged Lighting. Systems of illumination Externally Operable. Capable of being operated utilizing fluorescent lamps, high-intensity discharge without exposing the operator to contact with live parts. (HID) lamps, or neon tubing Feeder. All circuit conductors between the service Electrical Practitioner, Licensed. A Registered Master equipment, the source of a separately derived system, or Electrician (RME), Registered Electrical Engineer other power supply source and the final branch-circuit (REE) or Professional Electrical Engineer (PEE) overcurrent device. who has a knowledge of electrical engineering and/ Festoon Lighting. A string of outdoor lights that is or training in electrical installations and practices, and suspended between two points. has complied with the requirements of the Republic Act 7920 or national electrical engineering law. Fitting. An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to Electronically Actuated Fuse. An overcurrent perform a mechanical rather than an electrical function. protective device that generally consists of a control Garage. A building or portion of a building in which module that provides current-sensing, electronically one or more self-propelled vehicles can be kept for use, derived time-current characteristics, energy to initiate sale, storage, rental, repair, exhibition, or demonstration tripping, and an interrupting module that interrupts purposes. current when an overcurrent occurs. Such fuses may or FPN: For commercial garages, repair and storage, see Article may not operate in a current-limiting fashion, depending 5.11. on the type of control selected. Ground. The earth. Enclosed. Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally Grounded (Grounding). Connected ( connecting) to earth or to some conducting body that serves in place contacting energized parts. of the earth. Enclosure. The case or housing of apparatus, or the Grounded, Solidly. Connected to ground without fence or walls surrounding an installation to prevent inserting any resistor or impedance device. personnel from accidentally contacting energized parts or to protect the equipment from physical damage. Grounded Conductor. A system or circuit conductor that is intentionally grounded. FPN: See Table 4.30.7.11 for examples of enclosure types. Ground-Fault Circuit Interrupter (GFCI). A device Energized. Electrically connected to a source of intended for the protection of personnel that functions voltage. to de-energize a circuit or po1iion thereof within an Equipment. A general term including material, fittings, established period of time when a current to ground devices, appliances, luminaires, apparatus, and the like exceeds the values established for a Class A device. used as a part of, or in connection with, an electrical FPN: Class A ground-fault circuit interrupters trip when the installation. current to ground has a value in the range of 4 mA to 6 mA.. For 7  ARTICLE 1.1 - DEFINITIONS further information, see UL 943, Standard for Ground-Fault Handhole Enclosure. An enclosure identified for use in Circuit Interrupters. underground systems, provided with an open or closed Ground-Fault Current Path. An electrically bottom, and sized to allow personnel to reach into, but conductive path from the point of a ground fault on a not enter, for the purpose of installing, operating, or wiring system through normally non-current-carrying maintaining equipment or wiring or both. conductors, equipment, or the earth to electrical supply Hermatic Refrigerant Motor-Compressor. A source. combination consisting of a compressor and motor, both of which are enclosed in the same housing, with no FPN: Examples of ground-fault current paths are any external shaft or shaft seals, with the motor operating in combination of equipment grounding conductors, metallic the refrigerant. raceways, metallic cable sheaths, electrical equipment, and any other electrically conductive material such as metal, water, Hermetically Sealed [as applied to Hazardous and gas piping; stucco mesh; metal ducting; reinforcing steel; shields of communications cables; and the earth itself. (Classified) Locations]. Equipment sealed against the entrance of an exter- nal atmosphere where the seal Ground-Fault Protection of Equipment. A system is made by fusion, for example, soldering, brazing, intended to provide protection of equipment from welding, or the fusion of glass to metal. damaging line-to-ground fault currents by operating to FPN: For further information, see Al"l'SI/ ISA-12.12.01-2013, cause a disconnecting means to open all ungrounded Nonincendive Electrical Equipment for Use in Class I and conductors of the faulted circuit. This protection is II, Division 2, and Class Ill, Divisions 1 and 2 Hazardous provided at current levels less than those required to (Classified) Locations. protect conductors from damage through the operation Hoistway. Any shaftway, hatchway, well hole, or of a supply circuit overcurrent device. other vertical opening or space in which an elevator or Grounding Conductor, Equipment (EGC). The dumbwaiter is designed to operate. conductive path(s) that provides a ground-fault current Hybrid System. A system comprised of multiple path and connects normally non-current-carrying metal power sources. These power sources could include parts of equipment together and to the system grounded photovoltaic, wind, micro-hydro generators, engine- conductor or to the grounding electrode conductor, or driven generators, and others, but do not include electric both. power production and distribution network systems. FPN No. 1: It is recognized that the equipment grounding Energy storage systems such as batteries, :flywheels, conductor also performs bonding. or superconducting magnetic storage equipment do FPN No. 2: See 2.50.6.9 for the list of acceptable equipment not constitute a power source for the purpose of this grounding conductors. definition. The energy regenerated by an overhauling Grounding Electrode. A device that establishes an (descending) elevator does not constitute a power electrical connection to the earth. source for the purpose of this definition. Grounding Electrode Conductor. The conductor used Identified (as applied to equipment). Recognizable to connect the grounding electrode(s) to the equipment as suitable for the specific purpose, function, use, grounding conductor, to the grounded conductor, or to environment, application, and so forth, where described both, at the service, at each building or structure where in a particular Code requirement. supplied by a feeder(s) or branch circuit(s), or at the FPN: Some examples of ways to determine suitability of source of a separately derived system. equipment for a specific purpose, environment, or application include investigations by a qualified testing laboratory (listing Guarded. Covered, shielded, fenced, enclosed, or and labeling), an inspection agency, or other organizations otherwise protected by means of suitable covers, concerned with product evaluation. casings, barriers, rails, screens, mats, or platforms to In Sight From (Within Sight From, Within Sight). remove the likelihood of approach or contact by persons Where this Code specifies that one equipment shall or objects to a point of danger. be " in sight from," "within sight from," or "within Guest Room. An accommodation combining living, sight," and so forth, of another equipment, the specified sleeping, sanitary, and storage facilities within a equipment is to be visible and not more than 15 m compartment. distant from the other. Guest Suite. An accommodation with two or more Industrial Control Panel. An assembly of two or contiguous rooms comprising a compartment, with or more components consisting of one of the following: without doors between such rooms, that provides living, (1) power circuit components only, such as motor sleeping, sanitary, and storage facilities. controllers, overload relays, fused disconnect switches, 8  ARTICLE 1.1 - DEFINITIONS and circuit breakers; (2) control circuit components FPN: An intrinsically safe system may include more than one only, such as push buttons, pilot lights, selector switches, intrinsically safe circuit. timers, switches, and control relays; (3) a combination Isolated (as applied to location). Not readily accessible of power and control circuit components. These to persons unless special means for access are used. components, with associated wiring and terminals, are mounted on, or contained within, an enclosure or Kitchen. An area with a sink and permanent provisions for food preparation and cooking. mounted on a subpanel. Labeled. Equipment or materials to which has been The industrial control panel does not include the attached a label, symbol, or other identifying mark of an controlled equipment. organization that is concerned with product evaluation, InformationTechnologyEquipment(ITE).Equipment that maintains periodic inspection of production of and systems rated 1000 volts or less, normally found labeled equipment or materials, and by whose labeling the manufacturer indicates compliance with appropriate in offices or other business establishments and similar standards or performance in a specified manner. environments classified as ordinary locations, that are used for creation and manipulation of data, voice, Lighting Outlet. An outlet intended for the direct video, and similar signals that are not communications connection of a lampholder, a luminaire (lighting equipment as defined in Part 1.0.1 and do not process fixture), or a pendant cord terminating in a lampholder. communications circuits as defined in 8.0.1.2. Lighting Track (Track Lighting). A manufactured FPN: For information on listing requirements for both information assembly designed to support and energize luminaires technology equipment and communications equipment, see UL that are capable of being readily repositioned on 60950-1-2014, Information Technology Equipment - Safety - the track. Its length can be altered by the addition or Part 1: General Requirements or UL 62368-1-2014, Audio/ Video subtraction of sections of track. Infonnation and Communication Technology Equipment Part 1: Safety Requirements. Listed. Equipment, materials, or services included in