Admitting close approach; not guarded by locked doors, elevation, or other effective means

Power conversion equipment that provides a means of adjusting the speed of an electric motor

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

Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to take actions such as to use tools, to climber over or under, and so forth

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

The current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating

A branch circuit that supplies only one utilization equipment

A structure that stands alone or that is separated from adjoining structures by fire walls

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

An area including a basin with one or more of the following: toilet, tub, or shower

Equipment and materials; and installation, testing and commissioning methods, recognized as acceptable by local and international standards setting organizations permitted by relevant and applicable government regulatory codes

A branch circuit that supplies two or more receptacles or outlets for lighting and appliances

Performing a function without the necessity of human intervention

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

Connected to establish electrical continuity or conductivity

A branch circuit that consist of two or more ungrounded conductors and a grounded conducter that has a equal voltage between it

Apparatus in which the circuits are not necessarily intrinsically safe themselves but that affects the energy in the intrinsically safe circuits and is relied on to maintain intrinsic safety

A licensed electrical practitioner employed in the OBO responsible for overseeing electrical installations and equipment for compliance to providions of the PEC part 1 and approval of electrical permits and certificates issuances

The connection between the grounded circuit conductor and the equipment grounding conductor at the service

A reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected

The connection between the grounded circuit conductor and the equpment grounding conductor separately derived system

The connection between two or more portions of the equipment grounding conductor

An enclosure that is designed for either surface mounting or flush mounting and is provided with frame, mat, or trim in which a swinging door or doors are or can be hung

Interconnected battery subsystems consisting of one or more storage batteries and battery chargers, and can include inverters, converters, and associated electrical equipment

The place of business of the Building Official where processing of permits, notices, certificates and other related documents are undertaken.

A branch circuit that sipplies energy to one or more outlets to which appliances are to be connected and that has no permanently connected luminaires that are not part of appliance

The government official appointed by the secretary of the Department of Public Works and who is responsible for enforcing the provisions of the National Building Code of the Philippines and its implementing rules and regulations; notices and certificates

The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s)

A single channel or connected multiple channels as well as associated fittings, forming a structural system that is used to support and route communicstions wires and cables, optical fiber cables, and general-purpose applications

A load where the maximum current is expected to continue for 3 hours or more

A nonhabitable room or space intended primarily for storage of garments and apparel

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

A conductor having no covering or electrical insulation whatsoever

A conductor encased within material of composition and thickness that is recognized by this Code as electrical insulation

A qualifying term indicating that no delay is purposely introduced in the tripping action of the circuit breaker

A qualifying term indicating that the circuit breaker can be set to trip at various values of current, time, or both, within a predetermined range

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

A qualifying term indicating that the circuit breaker does not have any adjustment to alter the value of current at which it will trip or the time required for its operation

Rendered inaccessible by the structure or finish of the building.

A cylindrical assembly composed of a conductor centered inside a metallic tube or shield, separated by a dielectric material, and usually covered by an insulating jacket

A cable containing optical finers and current-carrying electrical conductors

A factory assembly of one or more optical fibers having an overall covering and containing non-current carrying conductive member(s)

Equipment that controls dc voltage or dc current, and that is used to charge a battery or other energy storage device

The electronic equipment that performs the telecommunications operations for the transmission of audio, video, and data, and includes power equipment and conductors dedicated solely to the operation of the equipment

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

A protection technique utilizing stationary gas detectors in idustrial establishments

Dust particles that are 500 microns or smaller and present a fire or explosion hazard when dispersed and ignited in air

A device that establishes a connection between two or more conductors or between one or more conductors and a terminal by means of mechanical pressure and without use of solder

The value of current, time, or both, at which an adjustable circuit breaker is set to trip

A seperate portion of a conduit or tubing system that provides access through a removable cover(s) to the interior of the system at a junction of two or more sections of the system ir at a terminal point of the system

Operation for alternate intervals of load and no load; or load and rest; or load, no load, and rest

Operation at a substantially constant load for a short and definite, specified time

Intermittent operation in which the load conditions are regularly recurrent

Operstion at loads, and for intervals of time, bot of which may be subject to wide variation

Operation at a substantially constant load for an indefinitely long time

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

Enclosures constructed so that dust will not enter the enclosing case under specified test conditions

An enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure

A unit of an electrical system, other than a conductor, that is intended to carry or control but not utilize electrical energy

The circuit of a control apparatus or system that carries the electric signals directing the performance of the controller but does not carry the main power current

Equipment enclosed in a manner that excludes dusts and does not permit arcs, sparks, or heat otherwise generated or liberated inside of the enclosure to cause ignition of exterior accumulations or atmospheric suspensions of a specified dust on or in the vicinity of the enclosure

Without live parts exposed to a person on the operating side of the equipment

A building that consist of one dwelling unit

A building that contain three or more dwelling units

A single unit, provide complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking and sanitation

A building that consists solely of two dwelling units

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

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

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

A drawing or other document provided by the manufacturer of the intrinsically safe or associated apparatus that details allowed interconnections between wiring apparatus

A fitting intended to terminate a cord to a box or similar device and reduce the strain at points of termination and may include an explosionproof, a dust-ignition proof, or a flameproof seal

Conductors drawn from a copper-clad aluminum rod with the copler metallurgically bonded to an aluminum core where copper forms a minimum of 10 percent of the cross-sectional area

Localization of an overcurrent condition to restrict outages to the circuit or equipment affected, accomplished by the selection and installation of overcurrent protective devices and their ratings or settings for the full range of available overcurrents

A system or circuit conductor that is intentionally grounded

Connected to ground without inserting any resistor or impedance device

Connected to earth or to some conducting body that serves in place of the earth

The Earth

A fixed, stationary, or portable self-contained, electrically operated and/or electrically illuminated utilization equipment with words or symbols designed to convey information or attract attention

Capable of being inadvertently touched or approached nearer than a safe distance by a person. It’s applied to parts that are not suitably guarded, isolated, or insulated

Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized paetd

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

Electrically connected to a source of voltage

Capable of being operated without exposung the operator to contact with live parts

Power production, distribution, and utilization equipments 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

On or attached to the surface or behind panels designed to allow access

Systems of illumination utilizing fluorescent lamps, high-intensity discharge (HID) lamps, or neon tubing

A string of outdoor lights that is suspended between two points

A general term including material, fittings, devices, appliance, luminaires, apparatus and the like used as part of electrical installation

A building or portion of a building in which on or more self-propelled vehicales can be kept for use, sale, and storage

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

A device intentded for 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

An intentionally constructed, low impedance electrically conductove 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

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 s specified gas and that operates at such an external temperature thst a surrounding flamabble atmosphere will not ignited thereby

A RME, REE, or PEE who has a knowledge of electrical engineer and/or training in electrical installations and practices

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

An overcurrent protective device that generally consists of a control module that provides current-sensing, electronically derived tim-current characteristics, energy to initiate tripping and interuppting module that interrupts current when an overcurrent occurs

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

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. 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

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