Enterprise: Ag. Mechanics Job: Becoming Familiar with Electricity

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Enterprise Ag. MechanicsJob Becoming Familiar
with Electricity
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Electrical Terminology

• 1. 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 Terminology

• 6. Switch - device used to control the flow of
  electricity.

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Electrical Terminology

• 7. Three-way Switch - used to control the flow
  of electricity from two different locations.

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Electrical Terminology

• 8. Duplex Receptacle - electrical outlet or
  plug-in.

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Electrical Terminology

• 9. Junction - electrical box where the source
  connects to the cable

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

• 10. 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 Terminology

• 11. 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 Terminology

• 15. Examples of Cables
• a. 12/2 12 gauge wires, 1 black, 1 white, and
  1 bare ground (3 wires total)
• b. 14/3 14 gauge wires - 1 black, 1 white, 1
  red, and 1 bare ground (4 total)

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Electrical Terminology

• 16. Other
• a. a light fixture

• 17. 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?