Philippine Electrical Code Chapter 1 Flashcards

Flashcards based on the Philippine Electrical Code 2009, Chapter 1: General. These flashcards cover definitions, rules, and requirements for electrical installations as per the PEC.

PEC 2009 - Part I, Volume 1

Rules regulating electrical installation inside buildings.

PEC 2009 - Part I, Volume 2

Rules regulating electrical installation applied to watercraft.

PEC 2009 - Part II

Rules regulating electrical installation done outside buildings.

Purpose of the Philippine Electrical Code

Practical safeguarding of persons and property from electrical hazards.

Intended users of the Philippine Electrical Code

Licensed electrical practitioners (PEE, REE, and RME).

Scope Covered by the Philippine Electrical Code

Installation of electrical conductors, equipment, and raceways in various buildings and locations.

Scope Not Covered by the Philippine Electrical Code

Installations in railway rolling stock, aircraft, or automotive vehicles.

Mandatory Rules in the PEC

Actions specifically required or prohibited, indicated by 'shall' or 'shall not'.

Permissive Rules in the PEC

Actions allowed but not required, describing options or alternative methods, indicated by 'shall be permitted'.

Explanatory Material (FPN) in the PEC

Informational material, like references to other standards, not enforceable as requirements.

Accessible (as applied to equipment)

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

Accessible (as applied to wiring methods)

Capable of being removed or exposed without damaging the building structure or finish.

Accessible, Readily (Readily Accessible)

Capable of being reached quickly for operation, renewal, or inspections without requiring climbing over or removing obstacles.

Ampacity

The current, in amperes, a conductor can carry continuously without exceeding its temperature rating.

Appliance

Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types to perform functions.

Approved

Acceptable to the authority having jurisdiction.

Askarel

A generic term for a group of non-flammable synthetic chlorinated hydrocarbons used as electrical insulating media.

Attachment Plug (Plug Cap) (Plug)

A device that, by insertion in a receptacle, establishes a connection between conductors.

Authority Having Jurisdiction (AHJ)

The organization, office, or individual responsible for approving equipment, materials, an installation, or a procedure.

Automatic

Self-acting, operating by its own mechanism when actuated by some impersonal influence.

Bonding (Bonded)

The permanent joining of metallic parts to form an electrically conductive path.

Bonding Jumper

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

Branch Circuit

A set of conductors that extends beyond the last overcurrent device protecting the circuit and the outlet(s).

Circuit Breaker

A device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself.

Adjustable Circuit Breaker

That the circuit breaker can be set to trip at various values of current, time, or both, within a predetermined range.

Instantaneous Trip Circuit Breaker

No delay is purposely introduced in the tripping action of the circuit breaker.

Inverse Time Circuit Breaker

There is purposely introduced a delay in the tripping action of the circuit breaker, which delay decreases as the magnitude of the current increases.

Nonadjustable Circuit Breaker

It does not have any adjustment to alter the value of current at which it will trip or the time required for its operation.

Setting of a Circuit Breaker

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

Concealed

Rendered inaccessible by the structure or finish of the building.

Conductor, Bare

A conductor having no covering or electrical insulation whatsoever.

Conduit Body

A separate portion of a conduit or tubing system that provides access through a removable cover(s) to the interior of the system.

Connector, Pressure (Solderless)

A device that establishes a connection between conductors by means of mechanical pressure and without the use of solder.

Continuous Load

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

Controller

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.

Copper-Clad Aluminum Conductors

Conductors drawn from a copper-clad aluminum rod with the copper metallurgically bonded to an aluminum core.

Cutout Box

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

Dead Front

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

Demand Factor

The ratio of the maximum demand of a system to the total connected load of that system.

Disconnecting Means

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

Dusttight

Constructed so that dust will not enter the enclosing case under specified test conditions.

Duty, Continuous

Operation at a substantially constant load for an indefinitely long time.

Duty, Intermittent

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

Duty, Periodic

Intermittent operation in which the load conditions are regularly recurrent.

Duty, Short-Time

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

Duty, Varying

Operation at loads, and for intervals of time, may be subject to wide variation.

Enclosed

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

Enclosure

The case or housing of apparatus, or the fence or walls surrounding an installation to prevent personnel from accidentally contacting energized parts.

Energized

Electrically connected to a source of voltage.

Exposed (as applied to live parts)

Capable of being inadvertently touched or approached nearer than a safe distance by a person.

Exposed (as applied to wiring methods)

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

Feeder

All circuit conductors between the service equipment and the final branch-circuit overcurrent device.

Festoon Lighting

A string of outdoor lights that is suspended between two points.

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.

Ground-Fault Circuit Interrupter (GFCI)

A device intended for the protection of personnel that functions to de-energize a circuit when a current to ground exceeds established values.

Grounding Conductor

A conductor used to connect equipment or the grounded circuit of a wiring system to a grounding electrode.

Grounding Conductor, Equipment

The conductor used to connect the non-current-carrying metal parts of equipment to the system grounded conductor.

Grounding Electrode

A device that establishes an electrical connection to the earth.

Grounding Electrode Conductor

The conductor used to connect the grounding electrode(s) to the equipment grounding conductor.

Guarded

Covered, shielded, fenced, enclosed, or otherwise protected to remove the likelihood of approach or contact by persons or objects to a point of danger.

Handhole Enclosure

An enclosure identified for use in underground systems, sized to allow personnel to reach into for installing, operating, or maintaining equipment or wiring.

Hoistway

Any shaftway, hatchway, well hole, or other vertical opening or space in which an elevator or dumbwaiter is designed to operate.

In Sight From (Within Sight From, Within Sight)

Where equipment is to be visible and not more than 15 m (50 ft) distant from other equipment.

Interrupting Rating

The highest current at rated voltage that a device is intended to interrupt under standard test conditions.

Live Parts

Conductor or conductive part intended to be energized in normal use.

Location, Damp

Locations protected from weather but subject to moderate degrees of moisture.

Location, Dry

A location not normally subject to dampness or wetness.

Location, Wet

Installations underground or in concrete slabs in direct contact with the earth; locations subject to saturation with water; unprotected locations exposed to weather.

Luminaire

A complete lighting unit consisting of a lamp or lamps together with the parts designed to distribute the light.

Multioutlet Assembly

A type of surface, flush, or freestanding raceway designed to hold conductors and receptacles.

Non-automatic

Action requiring personal intervention for its control.

Outlet

A point on the wiring system at which current is taken to supply utilization equipment.

Overcurrent

Any current in excess of the rated current of equipment or the ampacity of a conductor, resulting from overload, short circuit, or ground fault.

Overload

Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity, causing damage or overheating.

Panelboard

A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices.

Plenum

A compartment to which one or more air ducts are connected and that forms part of the air distribution system.

Power Outlet

An enclosed assembly that may include receptacles, circuit breakers, fuse holders, etc.; intended to supply and control power to mobile homes.

Raceway

An enclosed channel of metal or nonmetallic materials designed expressly for holding wires, cables, or busbars.

Rainproof

Constructed to prevent rain from interfering with the successful operation of the apparatus under specified test conditions.

Raintight

Constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions.

Receptacle

A contact device installed at the outlet for the connection of an attachment plug.

Receptacle Outlet

An outlet where one or more receptacles are installed.

Service

The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served.

Service Cable

Service conductors made up in the form of a cable.

Service Conductors

The conductors from the service point to the service disconnecting means.

Service Drop

The overhead service conductors from the last pole or other aerial support to the service-entrance conductors.

Service-Entrance Conductors, Overhead System

The service conductors between the terminals of the service equipment and a point outside the building where joined to the service drop.

Service-Entrance Conductors, Underground System

The service conductors between the terminals of the service equipment and the point of connection to the service lateral.

Service Equipment

The necessary equipment connected to the load end of service conductors to a building and intended to constitute the main control and cutoff of the supply.

Service Lateral

The underground service conductors between the street main and the first point of connection to the service-entrance conductors.

Service Point

The point of connection between the facilities of the serving utility and the premises wiring.

Show Window

Any window used for the display of goods or advertising material.

Signalling Circuit

Any electric circuit that energizes signalling equipment.

Switch, Transfer

An automatic or non-automatic device for transferring load conductor connections from one power source to another.

Switchboard

A large single panel on which are mounted switches, protective devices, buses, and instruments.

Thermal Protector (as applied to motors)

A protective device for assembly as an integral part of a motor or motor-compressor that protects the motor against dangerous overheating.

Utilization Equipment

Equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes.

Volatile Flammable Liquid

A flammable liquid having a flash point below 38°C.

Voltage (of a circuit)

The greatest root-mean-square (RMS) difference of potential between any two conductors of the circuit concerned.

Voltage, Nominal

A nominal value assigned to a circuit or system for conveniently designating its voltage class.