Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A. CE333 > BASIC ELECTRICAL SYSTEM DESIGN > Flashcards

BASIC ELECTRICAL SYSTEM DESIGN Flashcards

1
Q

ELECTRICAL MATERIALS

A

▪Panel Board
▪Circuit breakers
▪Wires and Cables
▪Conductor materials
▪Insulation materials
▪Conduit
▪Junction Box
▪Sockets/Outlets
▪Switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Enclosure of protective devices such as
circuit breakers. It serves as a central point
where electricity is received from the
main electrical supply and then divided
into individual circuits for lighting, outlets,
appliances, and other electrical loads.

A

PANEL BOARD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

is a safety device
that protects
an electric circuit from damage caused by an overcurrent or short circuit. The primary function of this device is to interrupt the current flow to shield the equipment and prevent the risk of fire. It can be operated manually and automatically trips in case of overload and short circuit condition.

A

CIRCUIT BREAKER

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Examples of Circuit breakers

A

= Miniature Circuit Breaker (MCB)
(5A to 40A)
= Molded Case Circuit Breaker
(MCCB)
(50A to 2500A)
=Air Circuit Breaker
(ACB)
(500A to 3500A)
=Oil Circuit Breaker
(OCB)
(1000A and up)
=Vacuum Circuit Breaker
(VCB)
(600A and up)
=SF6 Circuit Breaker
(SF6)
(1000A and up)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

WIRES AND CABLES

A

= Wire: conductor + insulation (small size)
= Cable: conductor + insulation + sheath (large size)
= Bare conductor: there is no insulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

cross sectional area of conductor without insulation

A

mm²

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CORE OF CABLES

A

Single-core cable
2-core cable
3-core cable
4-core cable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CONDUCTOR MATERIALS

A

Copper wire
Aluminum Wire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

INSULATION MATERIALS

A
  • PVC insulation wires
  • Cross-Linked Polyethylene (XLPE)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

-widely used type of insulation material
-inexpensive
-operating temperature ranges from -55°C to +105°C
-commonly used for building wiring, power distribution, and telecommunications

A

PVC insulation wires

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

-excellent high temperature resistance
-used in medium and high-voltage power cables

A

Cross-Linked Polyethylene (XLPE)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

COLOR CODES OF CABLE

A

-Phase A (RED)
-Phase B (YELLOW)
-Phase C (BLUE)
-Neutral (BLACK)
-Earth/Ground (GREEN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A plastic or metal pipe where electrical wires are running. It protects the wires and cables from damage.

A

CONDUIT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Types of conduit

A

= Rigid PVC Conduit
=Electrical Non-metallic Tubing (ENT)
= Flexible Metal Conduit (FMC)
= Rigid Metal Conduit (RMC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

-usually used inside the wall, slabs, and floor screed
-can be bent by being heated

A

Rigid PVC Conduit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

-a flexible corrugated plastic-type of tubing

A

Electrical Non-metallic Tubing (ENT)

17
Q

-has a spiral construction
-applicable to areas that require close quarters and tighter bends

A

Flexible Metal Conduit (FMC)

18
Q

-heavyweight galvanized steel that is installed using threaded fittings.
-costly because it offers additional strength and durability

A

Rigid Metal Conduit (RMC)

19
Q

STANDARD SIZES OF CONDUITS

A

-1/2 inch
-3/4 inch
-1 inch
-1 ¼ inch
-2 inch

20
Q

is an enclosure or container designed to house and protect electrical connections, wiring, and components.

A

electrical junction box

21
Q

Types of junction box

A

= Octagonal Junction Box
= Back Box

22
Q

is a device that provides a point of connection for electrical appliances and devices to access electrical power.

A

electrical outlet also commonly referred to as an electrical socket or receptacle,

23
Q

Types of Socket/Outlets

A

= Parallel Outlet
= Parallel outlet with grounding
= Universal outlet
= Two-way outlet
= Two-way outlet with grounding

24
Q

is a device that is used to interrupt or control the flow of electrical current in an electrical circuit. Switches are designed to provide a means for users to control the operation of lighting, appliances, machinery, and various electrical loads.

A

electrical switch

25
Q

Standard Ratings of switch

A

5A, 10A, 15A, 20A, 25A, 30A

26
Q

Represents the number of switch in back box

A

Gang

A. CE333 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions