A type of OCP device that automatically “strips off”, which opens the circuit when overcurrent occurs.

is a situation where a larger than intended electric current exists through a conductor, leading to excessive generation of heat.

Also called as mesh connection.

This kind of transformer steps up the voltage applied to it.

Most popular circuit breaker.

Divides an electrical power feed into branch circuits while providing a protective circuit breaker or fuse for each circuit in a common enclosure.

A type of fuse that has flat blades sticking out at each end.

Cabinet or cutout enclosure placed in or against a wall or partition that is accessible from the front.

It is an underground connection.

In circuit breaker, the higher the voltage rating requires a ___________ clearance.

It is a component in an electrical system that is designed to carry but not use electricity. This includes components such as switches, receptacles, and relays.

It is an end-use piece of utilization equipment designed to perform a specific function such as cooking, cleaning, cooling, or heating.

It is a point in a wiring system where current is taken to supply an appliance, piece of equipment, or lighting installation.

It is a female connecting device with slotted contacts. It is installed at an outlet or on equipment, where it is intended to easily establish an electrical connection with an inserted plug.

It is a male connecting device that has two or more prongs that are inserted into a receptacle to connect to an electrical circuit.

Enumerate the types of switches based on the number of poles they control.

______________ are electrical boxes and cabinets made of metal or non-metallic materials that protect conductors, connections, controls, and other electrical equipment.

_________________ are metal and non-metallic (plastic) enclosures that hold devices such as switches or outlets and safely permit wiring connections.

_____________ can be easily removed to allow wiring to enter the box.

A type of junction box that allows access to a raceway for making conductors through the raceway.

A special type of electrical box wed to enclose conductor connections.

A heavy galvanized steel or aluminum tube that looks like the galvanized steel pipe used for plumbing applications except it is much smoother and is labeled with a UL Listed stamp or label.

___________________________ is a galvanized steel or aluminum tube that has a thinner wall than a rigid metal conduit.

A standardized, factory-assembled enclosure consists of outer duct-like housing, bus bars, and insulators.

It makes power distribution flexible.

___________ are sheet metal or nonmetallic. Flame-resistant plastic troughs that serve as a housing that encloses and protects conductors.

A secondary surge protection component is used for accurate clamping of surge voltages.

A sudden increase in electrical current or voltage that is very short in duration.

Refers to the peak instantaneous current, measured in amperes (A), drawn by an electrical appliance or piece of equipment when it is first turned on.

Ground fault protection (GFP) is a crucial aspect of _________ in commercial buildings, particularly those served with 480/277 V electrical service.

Vertical lightning rods are sometimes called _________.

These are silent, invisible magnetic fields produced by any electricity that runs through a wire, an appliance, or some equipment.

A branch/feeder AFCI breaker with protection is provided to branch-circuit wiring in the form of a circuit breaker.

It occurs across the break of a single conductor.

It is useful in situations where permanent GFCIs are not available.

It is the unintentional flow of electrical current between a power source.

It is a set of regularly updated standards for the safe installation of electric wiring in the United States and is the primary basis of the Philippine Electrical Code.

Who issues the Certificate of Final Electrical Inspection (CFEI)?

This permit is required to connect a building to the electrical grid or modify an existing connection.

This specifies the minimum provisions necessary for protecting people and property from the improper use of electricity and electrical equipment.

Also known as wiring diagrams or electrical plans.

It is a set of standards and regulations that govern the safe and proper installation, operation, and maintenance of electrical systems in the Philippines. It provides guidelines for electrical design, wiring, equipment selection, grounding, protection, and other related aspects to ensure electrical safety and efficiency

This key element in electrical drawings helps engineers focus on specific parts without distractions.

It provides guidelines and standards for the design, construction, and occupancy of buildings in the country.

They are electrical engineers who are qualified to design, supervise, and install electrical systems but may not sign or seal electrical plans.

This document certifies that electrical systems comply with Occupational Safety and Health Standards (OSHS).

A device that converts electrical energy into mechanical energy.

He is known as the Father of Electric Motors.

Coils of wire wound around the stator or rotor.

It converts the electromagnetic forces from the stator into mechanical rotation.

One directional flow of electric charge.

A motor designed to operate on both AC and DC power.

It is frequently known as the hot or live conductor because it feeds current to the circuit

It is required to complete a singlephase circuit by connecting the ungrounded conductor to ground.

It provides supplementary but important grounding protection

It is the target voltage entering the service panel

The highest voltage to which a wiring device can be exposed

It accounts for anticipated voltage drops on branch circuit conductors.

It is expressed as a nominal voltage because it varies slightly.

Higher voltage means ___________ conductor sizes

What does y (wye) mean in voltage?

Another term for Grounded Conductor

In an electrical system, ______ is required to protect building occupants and electrical equipment.

Grounded conductor is considered a __________ in circuit design.

__________ protects the user from electric shock by creating a nonconducting barrier between the user and the electric components inside the appliance or tool.

__________ is a continuous conductor that connects the ground to the neutral bus bar.

The neutral conductor is frequently called a __________

_________ refers to a grounding conductor or grounding path that connects the noncurrent-carrying metal components of equipment.

A hot circuit is potentially hazardous condition because it unnecessarily exposes occupants to_______.

_________ is accomplished by installing an additional grounding conductor or by permanently joining metal components in a circuit.

TRUE OR FALSE. Neutral conductors are required to have the same ampacity rating as the ungrounded conductors.

TRUE OR FALSE. The grounded conductor must be sized at the same ampacity as the ungrounded (hot) conductor.

All building wiring must be enclosed in a cable, conduit, wire-way, or ______.

Conductors that run through a raceway must have sufficient open air space to prevent ________.

In runs requiring more bends, a _______ is added in the run to assist in pulling conductors and to allow access.

Rigid nonmetallic conduit and tubing is manufactured from ________ that have very high rates of thermal expan-sion (over 6 in for a 100°F temperature change per 100 ft/over 300 mm in a 50°C temperature change per 30 m).

______ should be provided at the lowest point in a conduit run.

TRUE OR FALSE. Conduits should be supported to prevent wearing away against structure and to avoid stressing its end fittings.

TRUE OR FALSE. Armored cable (AC) can be embedded in masonry, concrete, or plaster.

TRUE OR FALSE. There are no requirements that specify that a certain type of electrical box be installed for a specific purpose.

TRUE OR FALSE. Rigid conduit and tubing (e.g., rigid metal and nonmetal-lic conduit, IMC, EMT, ENT) are favorite raceway materials used to protect conductors in all types of buildings. Because it is available in straight lengths, it must be bent to accommodate changes in direction.

TRUE OR FALSE. Rigid nonmetallic conduit and tubing (ENT) can be used as the grounding conductor. With a few exceptions, a grounding conductor is required for flexible conduit.

TRUE OR FALSE. There are no requirements that specify that a certain type of electrical box be installed for a specific purpose.

It is a portion of a building wiring system extending beyond the overcurrent protection device.

This type of circuit may be referred to as a lighting circuit.

All conductors must originate from the same panelboard.

A type of electrical outlet where the top and bottom halves can be controlled by separate circuits.

It is the common used wiring method in residential dwellings.

It provides power to a single outlet such as a receptacle serving a range, clothes dryer, or copy machine.

It is an emergency system that provides adequate power to patients and personnel.

These are electrical loads thst run for 3 hours or more.

A minimum of one receptacle is required to serve the laundry room convenience

There is no specific size limit for individual circuit ratings. True or False?

A protection against excessive currents or current beyond the acceptable current rating of equipment. It serves to limit current levels in a conductor by interrupting power when current limitations are exceeded and prevents excessive heat from damaging conductors and related equipment.

A set of conductors that carry a comparatively large amount of power from the service equipment to a second panelboard, called a subpanelboard, where branch circuits further distribute the power.

Are machines that transfer electricity from one circuit to another with changing voltage level but no frequency change, It steps up or step down the building system voltage.

Required by NEC to be installed in all 125-V, 15-, and 20-A electrical receptacles in new residential construction. The move comes in an effort to better protect small children from suffering electrical burns when they accidentally insert items into conventional outlet.

A protection requirement for commercial and industrial applications such as use in fire station, sleeping areas, military housing, hospitals, outpatient clinics, rest homes, retirement homes, and in other locations where extension cords or cord-connected equipment may be used and where the general occupancy may be at risk from arc faults.

Occurs when a small amount of electrical current flows through the heart for 1 to 3 s. The amount of 0.006 to 0.2 A (6 to 200 milliamps, or mA) of current flowing through the heart disrupts the normal coordination of heart muscles. These muscles lose their vital rhythm and begin to fibrillate. Death soon follows.