Ag. Mechanics Becoming Familiar with Electricity Enterprise: Ag. Mechanics Job: Becoming Familiar...
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Transcript of Ag. Mechanics Becoming Familiar with Electricity Enterprise: Ag. Mechanics Job: Becoming Familiar...
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Enterprise: Ag. Ag. MechanicsMechanics
Job: Becoming Becoming Familiar with Familiar with
ElectricityElectricity
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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
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Electrical TerminologyElectrical Terminology6. Switch - device used to control the
flow of electricity.
SG
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Electrical TerminologyElectrical Terminology7. Three-way Switch - used to control
the flow of electricity from two different locations.
SG
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Electrical TerminologyElectrical Terminology8. Duplex Receptacle - electrical outlet or
plug-in.
DG
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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 =
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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
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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
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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)
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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?