Philippine Electrical Code (PEC) Part 1 Practice Flashcards

Flashcards covering vocabulary and technical specifications from Part 1 of the Philippine Electrical Code (PEC) for REE Board Exam preparation.

Intermediate Conduit Trade Size

The maximum electrical trade size for intermediate conduit is $100\,mm$.

Electrical Permit

The type of permit required before starting any installation work, alteration, repair, or extension on any electrical system.

PEC Application

The Philippine Electrical Code (PEC) is intended for mandatory applications by government bodies exercising legal jurisdiction over electrical installation.

Hazardous Location Classifications

Equipment for installation in hazardous locations is divided into $3$ groups according to the classification of the hazards involved.

Type FCC (Flat Conductor Cable)

Individual branch circuits using this cable shall have ratings not exceeding $30\,A$.

Type USE

An electrical conductor type applicable specifically for underground service entrance conductors.

Bending Space Requirement

If three wires of $150\,mm^2$ are connected to one terminal entering a cabinet or switchboard, the bending space at each terminal shall NOT be less than $250\,mm$.

Auxiliary Gutter Clearance

A clearance of not less than $26\,mm$ shall be secured between bare current carrying metal parts and any metal surface of an auxiliary gutter.

Minimum Box Depth

No electrical box shall have an internal depth of less than $12\,mm$.

Pendant

A device or equipment suspended from overhead either by means of a flexible cord carrying the current, or otherwise.

THW Copper Conductor Ampacity ($8.0\,mm^2$)

The allowable ampacity of THW insulated copper conductor with an area of $8.0\,mm^2$ exposed to an ambient temperature of $30^\circ\text{C}$ is $45\,A$.

Expansion Bolt

The hardware best suited for mounting electrical equipment on a concrete wall.

Range Neutral Load

The neutral load of a range with a demand load of $10.4\,kW$ is $7.28\,kW$.

Permit Issuance Delay

If a project is expensive and requires complex checking, the delay for the issuance of an electrical permit shall not be longer than $5$ working days.

Ground Conductor Pull Test

Splices in ground conductors shall be attached so as to withstand a pull test of $890\,\text{Newton}$.

Class II Hazardous Location

Locations which are hazardous because of the presence of combustible dust.

THW Copper Conductor (Buried)

For an ambient temperature of $30^\circ\text{C}$, a THW insulated copper conductor with a cross sectional area of $3.5\,mm^2$ buried underground has an ampacity of $30\,A$.

Lightning Protection Bonding

All extended parts located within $1,800\,mm$ of the lighting protection system shall be bonded to it.

Continuous Duty

Operation at substantially constant load for an indefinitely long time.

Transformer Clearance

Transformers exceeding $112.5\,kVA$ shall not be located within $300\,mm$ from combustible materials of the building.

Steel Electrode Thickness

Electrodes of iron or steel shall be at least $6.4\,mm$ in thickness.

Neutral Insulation Level

The minimum insulation level for the neutral conductors of a solidly grounded system shall be $600\,V$.

Advisory Rules

Rules in the PEC that are characterized by the use of the word 'should'.

Air Terminal

A device capable of drawing lightning discharge to it in preference to vulnerable parts of the protected area.

Fixed Appliance

An appliance which is fastened or otherwise secured at a specific location.

Inverse Time CB Rating

A standard rating of an inverse time Circuit Breaker (CB) is $110\,A$.

Aerial Cable Clearance

Aerial cable under non-metallic extensions shall have a clearance of not less than $50\,mm$ from steel structure members.

Republic Act No. 184

Under this act, a licensed Master Electrician may operate and tend generators rated up to $750\,V$.

Heavy Duty Lamp Holder

A lamp holder that must have a rating no less than $660\,W$.

Rigid Metal Conduit Support

In rigid metal conduit wiring, conduits shall be supported at least every $3,000\,mm$.

Open Wiring Damage Protection

Conductors within $2,000\,mm$ from the floor in open wiring method are considered exposed to physical damage.

Auxiliary Gutter Conductor Limit

Auxiliary gutters shall not contain more than $30$ current carrying conductors at any cross section.

Insulation Resistance ($201$ to $400\,A$)

Circuits rated from $201$ to $400\,A$ require a minimum insulation resistance of $25,000\,\text{ohms}$.

High Rise Building

For the purpose of lightning protection, a building with a height over $23\,m$.

Branch Circuit Classification

Branch circuits are classified according to the maximum setting of the over-current device.

Type TW

An electrical conductor with the trade name 'moisture resistant thermoplastic'.

Reactor

A device used for the purpose of minimizing irregularities in the flow of welding currents.

Local Building Office

The location where an electrical permit must be filed for land-based electrical installations under the PEC.