1. Electricity Lesson II
Electrical Symbols EE

2. Electrical Symbols Power Supply Hot lead attaches to plain pole
Ground or neutral wire attaches to pole with inverted tree

3. 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

4. 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

5. L Electrical Symbols Light Socket
socket where an incandescent light bulb is placed
power wire to dark screw
neutral wire to light screw L

6. 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

7. O Electrical Symbols Quadraplex Outlet outlet with four receptacles
two duplex receptacles in one outlet box
may be split wired O

8. Electrical Symbols Surface/Pendant Flourescent Fixture
Flourescent lights in the shop

9. R Electrical Symbols Recessed Flourescent Light Fixture
Flourescent lights in the Ag classroom R

10. 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

11. S S Electrical Symbols Single Pole Switch Connections 115 volt circuit
Switch is Off
Switch is On S S

12. 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

13. 2 2 Electrical Symbols Double Pole Switch Connections 230 volt circuit
Switch is Off
Switch is On 2 2

14. 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

15. Electrical Symbols Three Way Switch Connections 115 volt circuits
Switch knob left
Switch knob right

16. 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

17. Electrical Symbols Four Way Switch Connections 115 volt circuits
Switch knob left
Switch knob right

18. Electrical Symbols/Circuits
S1 controls L1

19. Electrical Symbols/Circuits
S1 controls L1

20. Electrical Symbols/Circuits
Screw B B L1 s1 W W Al
Screw
S1 controls L1

21. Electrical Symbols/Circuits
Control light from two locations L1 S1 S2

22. Electrical Symbols/Circuits
Control light from two locations L1 S1 S2

23. Electrical Symbols/Circuits
Control light from two locations L1 S1 S2

24. Electrical Symbols/Circuits
Control light from two locations
Takes 2 Three Ways L1 S1 S2

25. 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

26. 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

27. Electrical Symbols/Circuits
Control a light from 3 locations S1 S2 S3 L1

28. Electrical Symbols/Circuits
Control a light from 3 locations S1 S2 S3 L1

29. Electrical Symbols/Circuits
Control a light from 3 locations S1 S2 S3 W W W W L1

30. Electrical Symbols/Circuits
Control a light from 3 locations
Takes two 3 ways & one 4 way S1 S2 S3 W W L1

31. 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

32. 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