Structured Cabling and Wiring

Flashcards covering key concepts from the lecture notes on structured cabling systems, devices and circuits, raceway systems, enclosures, and temporary wiring installations.

A Building automation system (BAS)

an electrical system that automatically controls one or more specific facility functions

The four basic types of entrances for telecommunications wiring into an entrance facility are , __ tunnel underground buried

Arial

Though separate from the facility electrical distribution system, a grounding and __ bonding system is bonded to the electrical service.

TELECOMMUNICATION

__ is the method of using light to transport information from one location to another location through thin filaments of glass or plastic.

Fiber Optics

A transceiver is a device that and .

transmits and receives

Telecommunications cables are categorized from __ depending on the bandwidth requirement.

CAT 1 through CAT 8

__ notification systems must detect the presence of a fault condition and also provide notification actions.

Fire alarms

Three types of fire alarm circuits include __ device circuits, notification appliance circuits, and signaling-line circuits.

INiATiNg

Fire alarm __ are the most commonly used type of manual fire alarm stations.

Pull Down

__ smoke detectors use a light beam from a transmitter to a light receiver in the smoke detector unit to detect the presence of smoke or products of combustion.

Photo Electric

__ detectors are equipped with a thermocouple and used to detect excess heat levels within certain areas of a structure.

HEAT

An __ is a circuit breaker (CB), fuse, or switch with a circuit breaker that disconnects or discontinues current flow when the amount of current exceeds the design specifications

OVERCURRENT PROTECTIVE DEVICE

An __ rating is the highest current at rated voltage an overcurrent protective device is intended to open and interrupt.

INTERRUPTING

__ receptacles trip when the difference between ungrounded (hot) and grounded (neutral) current exceeds a difference of 4 mA to 6 mA.

GFCI

__ are not required where there is direct metal-to-metal contact between a receptacle and a device box or where a receptacle yoke has a spring-type grounding strap.

BODING Jumpers

Commercial and industrial circuits supply electrical energy to __ from separately derived systems through feeders and branch circuits.

UTILIZATION

Only __ conductors can be opened by switches.

UNGROUNDED

The __ equipment conductor in a branch circuit must be identified by insulation that is white or gray or has three white stripes.

Grounded

__ is any current in excess of that for which the conductor or equipment is designed.

OVER CURRENT

__ rules are requirements that must be met to allow conductors to be routed without short-circuit and ground fault protection at the point where they receive their power supply.

TAP

A __ is an enclosed channel for routing and placing electrical conductors and cables.

RACEWAY

The NEC® provides appropriate tables for performing calculations of conductor __ when installing different-size conductors in the same conduit.

Fill

Conductor fill in a conduit is the maximum percentage of cross-sectional __ that may be occupied by the conductors.

Area

__ conductors are two or more conductors that are electrically connected at both ends to form a single conductor.

PARALLED

__ is a threadable metal pipe with fairly thick walls.

Rigid

__ (IMC) has a thinner wall than RMC and has different color-coded thread protector caps.

INTERMEDIATE

is unthreaded thinwall tubing.

Electrical METALic tubing

is a raceway of circular cross section with an outer liquidtight, nonmetallic, sunlight-resistant jacket over an inner helically wound metal strip

Liquid tire Flexible METAL CONDIT

is a conduit made of materials other than metal and is designed for the installation of electrical conductors and cables.

Rigid NONMETALLIC CONDUIT

__ is a nonmetallic, pliable, corrugated raceway of circular cross section with integral or associated couplings, connectors, and fittings for the installation of electrical conductors.

ENT

A __ is a metal or nonmetallic trough with a hinged or removable cover designed to house and protect conductors and cables

WIRE WAY

An __ gutter is similar to a wireway, but cannot extend more than 30' beyond the equipment it supplements.

Auxillary

A __ is a sheet-metal enclosure that contains factory-assembled aluminum or copper busbars supported on insulators.

BUSWAY

__ is ventilated metal enclosure specifically made to house and support cables for power distribution systems.

Cable Tray

__ jumpers can be bare, insulated, or braided.

Bonding

An __ prevents personnel from accidentally contacting energized parts and protects equipment from physical damage.

ENCLOSoRR

A __ an electrical panel or group of panels designed to form a single panel contained in a cabinet or cutout box.

PANel board

All panelboard cabinets and frames of panelboards must be __.

GROUNDED

__ are provided to allow installation of conduit and cable fittings and can be removed before or after the enclosure is mounted.

Knockouts

Unused knockout openings must be __ with knockout seals.

Plugged

Service installations are required to comply with the same NEC® requirements as for permanently installed services.

Temp

__ extension cords are identified by a type designation, where a type letter designation and other information is printed on the outer jacket of the cord.

HALD USAGE

__ protection is required for all personnel and equipment when using temporary installations

GROUND FAIT

An __ equipment grounding conductor program (AGP) is a written procedural program of tests used to verify the integrity of the EGC in receptacles used for temporary power , extension cords, and portable corded power tools.

ASSuRED

Equipment listed for use in Class __ locations must be classified as explosionproof.

1 division 1

A conduit __ is a fitting inserted into conduit to isolate certain electrical apparatus from atmospheric hazards.

Seal

A __ grounding system is a wiring system that requires two separate grounding paths for fixed electrical equipment and receptacles in patient care areas.

REDONDANT

An __ transfer switch is a switch used to automatically transfer electric power for a system from one source to another.

AUTOMATIC

Temporary power __ can be portable, mobile, or stationary.

GENERATORS