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S A F E T Y M O D E L S TAG E 1 — r E C O G N I Z I N G H A Z A r D S

or tools can expose you to live electrical parts. A damaged tool may not be grounded properly, so the housing of the tool may be ener- gized, causing you to receive a shock. Improperly grounded metal switch plates and ceiling lights are especially hazardous in wet con- ditions. If you touch a live electrical component with an uninsulated hand tool, you are more likely to receive a shock when standing in water.

But remember: you don’t have to be standing in water to be electro- cuted. Wet clothing, high humidity, and perspiration reduce resis- tance and increase your chances of being electrocuted. You need to recognize that all wet conditions are hazards.

An electrical circuit in a damp place without a GFCI is danger- ous! A GFCI reduces the dange .

Additional hazards

In addition to electrical hazards, other types of hazards are present at job sites. Remember that all of these hazards can be controlled.

There are non-electrical hazards at job sites, too.

There may be chemical hazards. Solvents and other substances may be poisonous or cause disease.

Frequent overhead work can cause tendinitis (inflammation) in your shoulders.

Overhead work can cause long-term shoulder pain.

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Section 5

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