UNIT: ELECTRICAL
SWITCHES AND
RECEPTACLES
W. C. “BUSTER” HOUNSHELL
SPRING 2002
Virginia Tech
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
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:
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
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
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.
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.
Technical Content
PowerPoint Presentations
•
•
•
•
Electrical Switches
Special Purpose switches
Electrical Receptacles
GFCI Receptacles
Evaluation:
Receptacles and Switches
Identify the following switch
• 1.
A. three way
B. single pole
C. four way
Identify the following
• 2.
A. three way
B. single pole
C. four way
Identify the following
• 3.
A. three way
B. single pole
C. four way
Label the following:
• 4.
A._____grounding
terminal
B._____switch lever
C._____screw
terminals
•1
•3
•2
Label the following:
• 5.
A._____traveler screw
terminal
•1
B._____common
screw terminal
•2
Label the following:
• 6. The correct name
for No.1 and No.2
are:
A. Common
terminals
B. Travel terminals
•1
•2
Label the following:
• 7.
A._____mounting
straps
B._____amperage and
voltage rating
C._____wire gauge
rating
D._____wire
compatibility rating
2
1
3
4
Identify the following
• 8.
A. Switch/receptacle
B. High voltage
receptacle
C. Duplex receptacle
D. Pilot receptacle
Identify the following
• 9.
A. Switch/receptacle
B. High voltage
receptacle
C. Duplex receptacle
D. Pilot receptacle
Identify the following
• 10.
A. 15amp/125volt
B. 15amp/125volt with
ground
C. 15amp/250volt
D. 20amp/125volt
w/ground
Identify the following
• 11. Color, neutral,
hot, ground.
b
A._______, _______
B._______, _______
a
C._______, _______
D._______, _______
c
d
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
Identify the following
• 13.
A. Duplex receptacle
B. Grounded duplex
receptacle
C. Ground-fault
circuit-interrupter
receptacle
D. Ground-fault
circuitinterrupter
circuit breaker
Test Review