Enterprise: Ag. Ag. MechanicsMechanics

Job: Becoming Becoming Familiar with Familiar with

ElectricityElectricity

Electrical TerminologyElectrical Terminology1. Volts - measure of electrical pressure

2. Amperes - measure of electrical volume

3. Watts - measure of electrical useage

4. Formula: Watts = Amps x Volts

5. Kilowatt Hour - unit by which electricity is sold

Electrical TerminologyElectrical Terminology6. Switch - device used to control the

flow of electricity.

SG

Electrical TerminologyElectrical Terminology7. Three-way Switch - used to control

the flow of electricity from two different locations.

SG

Electrical TerminologyElectrical Terminology8. Duplex Receptacle - electrical outlet or

plug-in.

DG

Electrical TerminologyElectrical Terminology9. Junction - electrical box where the

source connects to the cable

J

SOURCE

10. Wire Nut - device used to connect two or more wires =

Electrical TerminologyElectrical Terminology10. Cable - two or more insulated

conductors (wires) encased in an outer covering.

a. sizes (big to small) - 2, 4, 6, 8, 10, 12, 14, or 16 gauge

b. colors - black, white, bare/green, red

Electrical TerminologyElectrical Terminology11. Black Wire - common, power, hot

solid line

12. White Wire - neutral

dashed line

13. Ground Wire - safety (green or bare)

dot dash line

14. Red Wire - power, hot

waved line

Electrical TerminologyElectrical Terminology15. Examples of Cables:

a. 12/212/2 = 12 gauge wires, 1 black, 1 white, and 1 bare ground (3 wires total)

b. 14/314/3 = 14 gauge wires - 1 black, 1 white, 1 red, and 1 bare ground (4 total)

Electrical TerminologyElectrical Terminology16. Other

a. a light fixture L17. Locate the amps and volts on the

following shop tools or machines, then calculate watts:

a. Drill Press d. Air Compressor

b. 8” Bench Grinder e. Miter Saw

c. Arc Welder f. Other?