electrical safety · ppt-sm-electsfty v.a.0.0 electrical safety • osha’s electrical safety...

PPT-SM-ELECTSFTYV.A.0.0

Electrical Safety

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Electrical Safety • OSHA’s electrical safety standard covers

– Work on or near exposed energized equipment– Proper use of electrical protective equipment– Safe use of portable electric equipment

• The standard requires de-energizing equipment prior to work

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Electrical Safety The two statuses given to electrical equipment are• Energized

– Circuit is closed or connected– Electricity flows in continuous current – Creates potential for electrical shock

• De-energized– Circuit is opened– No continuous path for electricity to flow

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Electrical Safety • Two categories of electrical workers

– Qualified– Unqualified

• Never exceed your training• Always utilize safe work practices

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Unsafe Work Practices Unsafe work practices include• Failure to utilize proper lockout procedures• Performing unauthorized work on energized circuits• Not using electrical protective equipment• Placing materials and tools close to energized circuits• Using an unsafe working position• Using defective equipment• Blindly reaching into energized circuits• Not using a ground fault circuit interrupter (GFCI)

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Electrical Hazards Electrical hazards may include• Using electricity in hazardous atmospheres• Working in wet work areas• Working around overhead lines• Using extension cords• Using broken or faulty equipment

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Electricity in Hazardous Atmospheres• Minor sparks can ignite gases • Use equipment appropriate for the work location• Electrical tools used in hazardous locations must be

– Explosion proof– Intrinsically safe

◦ Limit energy available for ignition • If these tools are not available, use alternative energy

tools7


Special Procedures in Wet Work Areas• Water increases your chance of electrocution• Avoid electrical injury by

– Waiting until the area is dry– Using special wet environment tools– Using alternative power tools

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Overhead Line Safety Guidelines for working around overhead lines include• De-energizing the lines whenever possible• Maintaining reasonable distance from active lines

– 10 feet from lines that are 50 kilovolts (kV) or less• Staying away from equipment that has contacted lines

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Extension CordsPrecautions• Avoid long extension cords• Replace damaged cords immediately • Ensure prongs are in good condition• Ensure plugs have a ground prong• Do not lay on floors or in walkways

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Broken or Faulty Equipment

• Never use damaged equipment • Check all equipment regularly

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Preventing Accidents and Injuries Prevention includes • Utilizing lockout procedures • Performing inspections• Using assured grounding• Performing special procedures in wet work areas• Using double insulated tools• Using GFCIs • Allowing only qualified electricians using proper PPE to perform

hazardous electrical work

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Ground Fault Circuit Interrupters• Circuit breakers and fuses will not protect people

from electrocution • GFCIs protect people from electrocution• They detect ground faults and quickly de-energize

the circuit

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Assured Grounding Program • Established and implemented by your company• The program must be in writing and accessible at

the jobsite• Ensures a qualified electrician has

– Periodically checked the grounding system– Visually inspected equipment

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Inspections• Carefully inspect electrical tools for

– Worn insulations– Exposed wires– Loose parts– Missing covers

• If damage is noticed – Tag out of service– Report to your supervisor

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Training Workers• Receive training on safety related work practices• Respond to the level of your training • Do not repair electrical equipment unless you are trained,

qualified and authorized

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Personal Protective Equipment• Designed and approved for electrical work• May include

– Gloves– Matting– Blankets– Covers– Sleeves– Type E hard hats– FRCs

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Electrical Safety Quiz

June 2013 Safety Meeting

Name: Date:

INSTRUCTIONS: Sign and date this quiz sheet. Circle the letter representing the correct answer to each quiz question below.

QUIZ-SM-ELECTSFTY

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1. OSHA’s electrical safety standard covers ___________________.

A. Work on or near exposed energized equipment B. Proper use of electrical protective equipment C. Safe use of portable electric equipment D. All of the above

2. The two statuses given to electrical equipment are safe and unsafe. A. True B. False

3. Unsafe work practices include _________________. A. Using electrical protective equipment B. Tagging and reporting defective equipment C. Blindly reaching into energized circuits D. Utilizing proper lockout procedures

4. Electrical hazards may include _______________. A. Using electricity in hazardous atmospheres B. Working in wet work areas C. Working around overhead lines D. All of the above

5. Electrical tools used in hazardous locations must be explosion proof and ___________. A. Pretty B. Black in color C. Intrinsically safe D. Located high on a shelf

6. A reasonable distance for unqualified workers to maintain when working with active overhead lines is _______ from lines that are 50 kV or less. A. 5 feet B. 10 feet C. 20 feet D. 50 feet

7. It is not important to check electrical equipment regularly. A. True B. False

8. Electrical safety prevention methods include all of the following, except ________________. A. Forgetting to use lockout procedures B. Performing inspections C. Using GFCIs D. Allowing only qualified electricians using proper PPE to perform hazardous electrical work

9. Circuit breakers and fuses will not protect people from electrocution. A. True B. False

10. GFCIs protect people from electrocution. A. True B. False

Electrical Safety Answer Key

Below is the answer key for the quiz.

June 2013 Safety Meeting

KEY-SM-ELECTSFTY

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1. D

2. B

3. C

4. D

5. C

6. B

7. B

8. A

9. A

10. A

This is to certify that

has successfully completed thePEC Safety Meeting

Date AwardedInstructor

Electrical Safety

electrical safety · ppt-sm-electsfty v.a.0.0 electrical safety • osha’s electrical safety...

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