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Electricity Lesson II Electrical Symbols EE. n Power Supply n Hot lead attaches to plain pole n Ground or neutral wire attaches to pole with inverted.

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Presentation on theme: "Electricity Lesson II Electrical Symbols EE. n Power Supply n Hot lead attaches to plain pole n Ground or neutral wire attaches to pole with inverted."— Presentation transcript:

1 Electricity Lesson II Electrical Symbols EE

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

3 Electrical Symbols n n Switch Wiring n color coded wires to complete the desired circuit n 5 conductor colors n Black, White, Red, n Blue, Yellow n Green safety ground S B W R Bl Y

4 Electrical Symbols n Junction Box n All splices must be done within a box n If only splices are needed, it is called a junction box J

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

6 Electrical Symbols n n Duplex Outlet n household outlet with two receptacles n power wire to dark screws n neutral wire to light screws n can be split wired O

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

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

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

10 Electrical Symbols n n Single Pole Switch n connects or disconnects a circuit from one location in a 115 volt circuit n wire into hot side of 115 volt circuit n attach green safety wire S S

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

12 Electrical Symbols n n Double Pole Switch n connects or disconnects a 230 volt circuit from one location. n Wire into both hot leads of a 230 volt circuit 2 S2

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

14 Electrical Symbols n n Three Way Switch n usually used in combination with one or more additional switches in 115 volt circuits n controls a circuit from more than one location S3

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

16 Electrical Symbols n n Four Way Switch n used in combination with 2 three way switches in 115 volt circuits. n controls circuit from three or more locations. S4

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

18 Electrical Symbols/Circuits s1 L1 S1 controls L1

19 Electrical Symbols/Circuits s1 L1 S1 controls L1

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

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

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

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

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

25 Electrical Symbols/Circuits Control light from two locations Takes 2 Three Ways S1 L1 S2 B WW B B W Al Screw Cu

26 Electrical Symbols/Circuits Control light from two locations Takes 2 Three Ways S1 L1 S2 B WW R B B W Al Screw Cu

27 Electrical Symbols/Circuits Control a light from 3 locations S1S2S3 L1

28 Electrical Symbols/Circuits Control a light from 3 locations S1S2S3 L1

29 Electrical Symbols/Circuits S1S2S3 L1 WW W W Control a light from 3 locations

30 Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way S1S2S3 L1 W W

31 Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way S1S2S3 L1 WW W W B BBB Al Screw Cu Screw

32 Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way S1S2S3 L1 WW W W B B RR BB Al Screw Cu Screw

33


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