Electricity Lesson II Electrical Symbols EE Electrical Symbols Power Supply Hot lead attaches to plain pole Ground or neutral wire attaches to pole with inverted tree.
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Transcript Electricity Lesson II Electrical Symbols EE Electrical Symbols Power Supply Hot lead attaches to plain pole Ground or neutral wire attaches to pole with inverted tree.
Electricity Lesson II
Electrical Symbols
EE
Electrical Symbols
Power Supply
Hot lead attaches to
plain pole
Ground or neutral
wire attaches to pole
with inverted tree
Electrical Symbols
Switch Wiring
color coded wires to
complete the
desired circuit
5 conductor colors
Black, White, Red,
Blue, Yellow
Green safety ground
B
W
R
Bl
Y
S
Electrical Symbols
Junction Box
All splices must be
done within a box
If only splices are
needed, it is called a
junction box
J
Electrical Symbols
Light Socket
socket where an
incandescent light
bulb is placed
power wire to dark
screw
neutral wire to light
screw
L
Electrical Symbols
Duplex Outlet
household outlet
with two receptacles
power wire to dark
screws
neutral wire to light
screws
can be split wired
O
Electrical Symbols
Quadraplex Outlet
outlet with four
receptacles
two duplex
receptacles in one
outlet box
may be split wired
O
Electrical Symbols
Surface/Pendant
Flourescent
Fixture
Flourescent lights in
the shop
Electrical Symbols
Recessed
Flourescent Light
Fixture
Flourescent lights in
the Ag classroom
R
Electrical Symbols
Single Pole Switch
connects or
disconnects a circuit
from one location in
a 115 volt circuit
wire into hot side of
115 volt circuit
attach green safety
wire
S
S
Electrical Symbols
Single Pole Switch
Connections
115 volt circuit
Switch is Off
Switch is On
S
S
Electrical Symbols
Double Pole
Switch
connects or
disconnects a 230
volt circuit from one
location.
Wire into both hot
leads of a 230 volt
circuit
2
S2
Electrical Symbols
Double Pole
Switch
Connections
230 volt circuit
Switch is Off
Switch is On
2
2
Electrical Symbols
Three Way Switch
usually used in
combination with
one or more
additional switches
in 115 volt circuits
controls a circuit
from more than one
location
S3
Electrical Symbols
Three Way Switch
Connections
115 volt circuits
Switch knob left
Switch knob right
Electrical Symbols
Four Way Switch
used in combination
with 2 three way
switches in 115 volt
circuits.
controls circuit from
three or more
locations.
S4
Electrical Symbols
Four Way Switch
Connections
115 volt circuits
Switch knob left
Switch knob right
Electrical Symbols/Circuits
s1
S1 controls L1
L1
Electrical Symbols/Circuits
s1
S1 controls L1
L1
Electrical Symbols/Circuits
Cu
Screw
B
W
B
s1
L1
W
S1 controls L1
Al
Screw
Electrical Symbols/Circuits
Control light from two locations
S1
S2
L1
Electrical Symbols/Circuits
Control light from two locations
S1
S2
L1
Electrical Symbols/Circuits
Control light from two locations
S1
S2
L1
Electrical Symbols/Circuits
Control light from two locations
Takes 2 Three Ways
S1
S2
L1
Electrical Symbols/Circuits
Control light from two locations
Takes 2 Three Ways
B
W
B
B
S1
L1
S2
W
Cu
Screw
W
Al
Screw
Electrical Symbols/Circuits
Control light from two locations
Takes 2 Three Ways
B
S1
W
B
R
W
Cu
Screw
B
L1
S2
W
Al
Screw
Electrical Symbols/Circuits
Control a light from 3 locations
S1
S2
S3
L1
Electrical Symbols/Circuits
Control a light from 3 locations
S1
S2
S3
L1
Electrical Symbols/Circuits
Control a light from 3 locations
S1
W
S2
W
S3
W
W
L1
Electrical Symbols/Circuits
Control a light from 3 locations
Takes two 3 ways & one 4 way
S1
S2
S3
W
W
L1
Electrical Symbols/Circuits
Control a light from 3 locations
Takes two 3 ways & one 4 way
B
B
S1
W
B
S2
W
S3
W
W
Al
Screw
L1
B
Cu
Screw
Electrical Symbols/Circuits
Control a light from 3 locations
Takes two 3 ways & one 4 way
B
S1
W
B
R
W
S2
B
R
W
S3
W
Al
Screw
L1
B
Cu
Screw