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Key TermsAmperes: The volume or intensity of the current flow.

AWG: American wire gauge (AWG), which is one measurement standard used to size wire.Circuit: Complete path of the current; including a voltage source, conductors, and the load (such as

heater).

Conductors: Materials that contain free electrons that allow current to flow through the material.

Current: Electron movement (measured in amperes).

Electric Shock: The effects of current flowing through the body.

GFCI: Ground-Fault Circuit Interrupter.

Grounding: An intentional conductive connection to the earth that provides a path back to the soucurrent that may occur in a circuit.

Insulators: Materials with few free electrons. Current does not easily flow through insulators, if at a

Resistance: Opposition to current flow.

Volts: The electrical pressure (measure of electrical force).

Watts: Measurement of electrical power.

Wire Gauge: System used to measure the physical size of wire.

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LOW VOLTAGE DOES NOT MEAN LOW HAZARD!

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*mA =

1/1,00

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Ground-Fault Circuit Interrupter (GFCI)

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Fuses

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Circuit Breakers

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If a GFCI keeps tripping while you are using a

power tool, there is a problem. Dont keep

resetting the GFCI and continue work. You

must evaluate the clue and decide what

action should be taken to control the

hazard.

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