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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. B. Switch Wiring color coded wires to complete the desired circuit 5 conductor colors - PowerPoint PPT Presentation
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Electricity Lesson IIElectricity Lesson II
Electrical SymbolsElectrical SymbolsEEEE
Electrical SymbolsElectrical Symbols
Power SupplyPower Supply Hot lead attaches to Hot lead attaches to
plain poleplain pole Ground or neutral Ground or neutral
wire attaches to pole wire attaches to pole with inverted treewith inverted tree
Electrical SymbolsElectrical Symbols
Switch Wiring color coded wires to color coded wires to
complete the complete the desired circuitdesired circuit
5 conductor colors5 conductor colors Black, White, Red,Black, White, Red, Blue, YellowBlue, Yellow Green safety groundGreen safety ground S
BWR
BlY
Electrical SymbolsElectrical Symbols
Junction BoxJunction Box All splices must be All splices must be
done within a boxdone within a box If only splices are If only splices are
needed, it is called a needed, it is called a junction boxjunction box JJ
Electrical SymbolsElectrical Symbols
Light Socket socket where an
incandescent light bulb is placed
power wire to dark screw
neutral wire to light screw
LL
Electrical SymbolsElectrical Symbols
Duplex Outlet household outlet household outlet
with two receptacleswith two receptacles power wire to dark power wire to dark
screwsscrews neutral wire to light neutral wire to light
screwsscrews can be split wiredcan be split wired
O
Electrical SymbolsElectrical Symbols
Quadraplex Outlet outlet with four outlet with four
receptaclesreceptacles two duplex two duplex
receptacles in one receptacles in one outlet boxoutlet box
may be split wiredmay be split wired
O
Electrical SymbolsElectrical Symbols
Surface/Pendant Flourescent Fixture
Flourescent lights in Flourescent lights in the shopthe shop
Electrical SymbolsElectrical Symbols
Recessed Flourescent Light Fixture
Flourescent lights in Flourescent lights in the Ag classroomthe Ag classroom
R
Electrical SymbolsElectrical Symbols
Single Pole Switch connects or connects or
disconnects a circuit disconnects a circuit fromfrom one location one location in in a a 115 volt 115 volt circuitcircuit
wire into hot side of wire into hot side of 115 volt circuit115 volt circuit
attach green safety attach green safety wirewire
S
S
Electrical SymbolsElectrical Symbols
Single Pole Switch Connections
115 volt circuit115 volt circuit Switch is OffSwitch is Off Switch is OnSwitch is On
S
S
Electrical SymbolsElectrical Symbols
Double Pole Switch
connects or connects or disconnects a 230 disconnects a 230 volt circuit fromvolt circuit from one one locationlocation..
Wire into both hot Wire into both hot leads of a leads of a 230 volt 230 volt circuitcircuit
2
S2S2
Electrical SymbolsElectrical Symbols
Double Pole Switch Connections
230 volt circuit230 volt circuit Switch is OffSwitch is Off Switch is OnSwitch is On
2
2
Electrical SymbolsElectrical Symbols
Three Way Switch usually used in usually used in
combination with combination with one or more one or more additional switches additional switches in 115 volt circuitsin 115 volt circuits
controls a circuit controls a circuit from more than one from more than one locationlocation S3S3
Electrical SymbolsElectrical Symbols
Three Way Switch Connections
115 volt circuits115 volt circuits Switch knob leftSwitch knob left Switch knob rightSwitch knob right
Electrical SymbolsElectrical Symbols
Four Way Switch used in combination used in combination
with 2 three way with 2 three way switches in switches in 115 volt 115 volt circuits.circuits.
controls circuit from controls circuit from three or more three or more locations.locations. S4S4
Electrical SymbolsElectrical Symbols
Four Way Switch Connections
115 volt circuits115 volt circuits Switch knob leftSwitch knob left Switch knob rightSwitch knob right
Electrical Symbols/CircuitsElectrical Symbols/Circuits
s1 L1
S1 controls L1
Electrical Symbols/CircuitsElectrical Symbols/Circuits
s1 L1
S1 controls L1
Electrical Symbols/CircuitsElectrical Symbols/Circuits
s1 L1
S1 controls L1
B
W
B
W
ScrewCu
AlScrew
Electrical Symbols/CircuitsElectrical Symbols/Circuits
S1 L1S2
Control light from two locations
Electrical Symbols/CircuitsElectrical Symbols/Circuits
S1 L1S2
Control light from two locations
Electrical Symbols/CircuitsElectrical Symbols/Circuits
S1 L1S2
Control light from two locations
Electrical Symbols/CircuitsElectrical Symbols/Circuits
S1 L1S2
Control light from two locationsTakes 2 Three Ways
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl light from two locations
Takes 2 Three Ways
S1 L1S2B
W W
B B
WAlScrew
ScrewCu
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl light from two locations
Takes 2 Three Ways
S1 L1S2B
W WRB B
WAlScrew
ScrewCu
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl a light from 3 locations
S1 S2 S3
L1
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl a light from 3 locations
S1 S2 S3
L1
Electrical Symbols/CircuitsElectrical Symbols/Circuits
S1 S2 S3
L1
W W
W
W
Control a light from 3 locations
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl a light from 3 locationsTakes two 3 ways & one 4 way
S1 S2 S3
L1
W
W
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl a light from 3 locationsTakes two 3 ways & one 4 way
S1 S2 S3
L1
W W
W
WB
B B B
AlScrew
CuScrew
Electrical Symbols/CircuitsElectrical Symbols/CircuitsControl a light from 3 locationsTakes two 3 ways & one 4 way
S1 S2 S3
L1
W W
W
WB
BR RB B
AlScrew
CuScrew
