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Electricity Lesson II Electrical Symbols EE

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**Electrical Symbols Power Supply Hot lead attaches to plain pole**

Ground or neutral wire attaches to pole with inverted tree

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**S Electrical Symbols Switch Wiring**

color coded wires to complete the desired circuit 5 conductor colors Black, White, Red, Blue, Yellow Green safety ground W R Bl Y S

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**J Electrical Symbols Junction Box**

All splices must be done within a box If only splices are needed, it is called a junction box J

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**L Electrical Symbols Light Socket**

socket where an incandescent light bulb is placed power wire to dark screw neutral wire to light screw L

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**O Electrical Symbols Duplex Outlet**

household outlet with two receptacles power wire to dark screws neutral wire to light screws can be split wired O

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**O Electrical Symbols Quadraplex Outlet outlet with four receptacles**

two duplex receptacles in one outlet box may be split wired O

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**Electrical Symbols Surface/Pendant Flourescent Fixture**

Flourescent lights in the shop

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**R Electrical Symbols Recessed Flourescent Light Fixture**

Flourescent lights in the Ag classroom R

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**S S 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

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**S S Electrical Symbols Single Pole Switch Connections 115 volt circuit**

Switch is Off Switch is On S S

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**2 S2 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

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**2 2 Electrical Symbols Double Pole Switch Connections 230 volt circuit**

Switch is Off Switch is On 2 2

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**S3 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

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**Electrical Symbols Three Way Switch Connections 115 volt circuits**

Switch knob left Switch knob right

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**S4 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

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**Electrical Symbols Four Way Switch Connections 115 volt circuits**

Switch knob left Switch knob right

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**Electrical Symbols/Circuits**

S1 controls L1

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**Electrical Symbols/Circuits**

S1 controls L1

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**Electrical Symbols/Circuits**

Screw B B L1 s1 W W Al Screw S1 controls L1

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**Electrical Symbols/Circuits**

Control light from two locations L1 S1 S2

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**Electrical Symbols/Circuits**

Control light from two locations L1 S1 S2

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**Electrical Symbols/Circuits**

Control light from two locations L1 S1 S2

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**Electrical Symbols/Circuits**

Control light from two locations Takes 2 Three Ways L1 S1 S2

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**Electrical Symbols/Circuits**

Control light from two locations Takes 2 Three Ways Cu Screw B B B L1 S1 S2 W W W Al Screw

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**Electrical Symbols/Circuits**

Control light from two locations Takes 2 Three Ways Cu Screw B B B L1 S1 R S2 W W W Al Screw

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**Electrical Symbols/Circuits**

Control a light from 3 locations S1 S2 S3 L1

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**Electrical Symbols/Circuits**

Control a light from 3 locations S1 S2 S3 L1

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**Electrical Symbols/Circuits**

Control a light from 3 locations S1 S2 S3 W W W W L1

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**Electrical Symbols/Circuits**

Control a light from 3 locations Takes two 3 ways & one 4 way S1 S2 S3 W W L1

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**Electrical Symbols/Circuits**

Control a light from 3 locations Takes two 3 ways & one 4 way B B B S1 S2 S3 W W W B W Cu Al L1 Screw Screw

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**Electrical Symbols/Circuits**

Control a light from 3 locations Takes two 3 ways & one 4 way B B B S1 R S2 R S3 W W W B W Cu Al L1 Screw Screw

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