Electricity Lesson II Electrical Symbols EE Electrical Symbols

Electricity Lesson II Electrical Symbols EE

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

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

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

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

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

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

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

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

Electrical Symbols n n 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

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

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

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

Electrical Symbols n n n 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 S 3

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

Electrical Symbols n n n Four Way Switch used in combination with 2 three way switches in 115 volt circuits. controls circuit from three or more locations. S 4

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

Electrical Symbols/Circuits s 1 S 1 controls L 1

Electrical Symbols/Circuits s 1 S 1 controls L 1

Electrical Symbols/Circuits Cu Screw B W B s 1 L 1 W S 1 controls L 1 Al Screw

Electrical Symbols/Circuits Control light from two locations S 1 S 2 L 1

Electrical Symbols/Circuits Control light from two locations S 1 S 2 L 1

Electrical Symbols/Circuits Control light from two locations S 1 S 2 L 1

Electrical Symbols/Circuits Control light from two locations Takes 2 Three Ways S 1 S 2 L 1

Electrical Symbols/Circuits Control light from two locations Takes 2 Three Ways B W B B S 1 Cu Screw L 1 S 2 W W Al Screw

Electrical Symbols/Circuits Control light from two locations Takes 2 Three Ways B S 1 W B R W Cu Screw B L 1 S 2 W Al Screw

Electrical Symbols/Circuits Control a light from 3 locations S 1 S 2 S 3 L 1

Electrical Symbols/Circuits Control a light from 3 locations S 1 S 2 S 3 L 1

Electrical Symbols/Circuits Control a light from 3 locations S 1 W S 2 W S 3 W W L 1

Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way S 1 S 2 S 3 W W L 1

Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way B B S 1 W B S 2 W S 3 W W Al Screw L 1 B Cu Screw

Electrical Symbols/Circuits Control a light from 3 locations Takes two 3 ways & one 4 way B S 1 W B R W S 2 B R W S 3 W Al Screw L 1 B Cu Screw