Electricity Lesson II - PowerPoint PPT Presentation

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Electricity Lesson II

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Title: Electricity Lesson II Subject: Electrical Symbols Author: Aubrey Engberg Last modified by: Class Created Date: 3/28/1998 7:48:42 PM Document presentation format – PowerPoint PPT presentation

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Title: Electricity Lesson II


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
Electrical Symbols
B
  • 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
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
Electrical Symbols
  • Light Socket
  • socket where an incandescent light bulb is placed
  • power wire to dark screw
  • neutral wire to light screw

L
6
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
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
Electrical Symbols
  • Recessed Flourescent Light Fixture
  • Flourescent lights in the Ag classroom

R
10
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
Electrical Symbols
  • Single Pole Switch Connections
  • 115 volt circuit
  • Switch is Off
  • Switch is On

S
S
12
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
Electrical Symbols
  • Double Pole Switch Connections
  • 230 volt circuit
  • Switch is Off
  • Switch is On

2
2
14
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
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
L1
s1
S1 controls L1
19
Electrical Symbols/Circuits
L1
s1
S1 controls L1
20
Electrical Symbols/Circuits
Cu
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
S2
R
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
S2
S3
R
R
W
W
W
B
W
Cu
Al
L1
Screw
Screw
33
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