UNIT: ELECTRICAL SWITCHES AND RECEPTACLES

1
UNIT ELECTRICAL SWITCHES AND RECEPTACLES

• W. C. BUSTER HOUNSHELL
• SPRING 2002
• Virginia Tech

2
OBJECTIVES

• Performance Objective
• Students will be able to identify and list the
  different types of wall switches and
  receptacles commonly use in electrical wiring
  for the home or farm stead

3
Enabling objectives

• Given the instruction in class, laboratory, and
  assignments-
• Students will be able to list and identify the
  different types of wall switches, receptacles and
  their parts commonly used in wiring electrical
  circuits with a 70 accuracy

4
Switches to list and identify

• Single pole
• Three-way switch
• Four-way switch
• Double switches
• Pilot light switch
• Switch/receptacles

• Timer switches
• Automatic switches
• Motion- sensor switches
• Programmable switches
• Time-delay switch
• Dimmer switch

5
Receptacles to list and identify

• Normal receptacles
• 15 amps, 125 volts
• 15 amps,125 volts
• (grounded)
• 20 amps, 125 volts
• 15 amps, 250 volts

• High voltage
• 30 amps 125/250 volts
• 50 amps, 125/250 volts

6
Interest approach

• The uses of electricity are numerous and new
  developments are appearing nearly daily.
• Electricity provides our homes, farms,
  businesses and industries with valuable resources
  that would otherwise be unavailable to us.
• Science, medicine, transportation and even
  communications have been fortunate to make rapid
  technological advancements related to our
  understanding of electricity.

7
Interest approach (Continued)

• All phases of modern agriculture depend on the
  benefits of electricity
• To better understand and benefit from the
  application of electricity
• There are basic principles that one should become
  comfortable with.

8
Technical Content PowerPoint Presentations
9
Evaluation

• Receptacles and Switches

10
Identify the following switch

• 1.
• A. three way
• B. single pole
• C. four way

11
Identify the following

• 2.
• A. three way
• B. single pole
• C. four way

12
Identify the following

• 3.
• A. three way
• B. single pole
• C. four way

13
Label the following

• 4.
• A._____grounding terminal
• B._____switch lever
• C._____screw terminals

• 1

• 2

• 3

14
Label the following

• 5.
• A._____traveler screw terminal
• B._____common screw terminal

• 1

• 2

15
Label the following

• 6. The correct name for No.1 and No.2 are
• A. Common terminals
• B. Travel terminals

• 1

• 2

16
Label the following

• 7.
• A._____mounting straps
• B._____amperage and voltage rating
• C._____wire gauge rating
• D._____wire compatibility rating

2
1
3
4
17
Identify the following

• 8.
• A. Switch/receptacle
• B. High voltage receptacle
• C. Duplex receptacle
• D. Pilot receptacle

18
Identify the following

• 9.
• A. Switch/receptacle
• B. High voltage receptacle
• C. Duplex receptacle
• D. Pilot receptacle

19
Identify the following

• 10.
• A. 15amp/125volt
• B. 15amp/125volt with ground
• C. 15amp/250volt
• D. 20amp/125volt w/ground

20
Identify the following

• 11. Color, neutral, hot, ground.
• A._______, _______
• B._______, _______
• C._______, _______
• D._______, _______

b
c
d
a
21
Identify the type circuit

• 12.
• A. High voltage
• B. Normal voltage
• C. 125 volts
• D. 250 volts
• E. Both A D
• F. Both A C

22
Identify the following

• 13.
• A. Duplex receptacle
• B. Grounded duplex receptacle
• C. Ground-fault circuit-interrupter
  receptacle
• D. Ground-fault circuit-interrupter
  circuit breaker

23
Test Review
24
(No Transcript)