Electrical Safety

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[Contents]

 

[Electrocution Statistics]

• About 5 workers are electrocuted every week
• Causes 12% of young worker workplace deaths
• Takes very little electricity to cause harm
• Significant risk of causing fires
• The most potential area of Risk
• Second leading cause of death in construction

 

[Electrical Definition]

 

 

[Mishap Outcomes]

Burns

Electrocution

Shocks

Arc Flash / Arc Blast

Fire

Explosions

 

[Common Direct Causes]

 

[Common Indirect Causes]

 

[Burns]

 

[Electrocution & Shock]

 

[Electrical Shock]

    Dangers of Electical Shock

• Currents greater than 75 mA can cause ventricular fibrillation
• Will cause death in a few minutes unless a defibrillator is used
• 74 mA is not much current - a small power drill uses 30 times as much

 

[Electrical Shock Chart]

 

 

[Arc Flash/Blast]

 

 

[Fire & Explosion]

 

 

 

[Qualified Personnel]

Electrical work shall be performed by Qualified Personnel

with verifiable credentials who are familiar

with applicable code requirement

 

 

 

[Controlling Electrical Hazards]

Organization uses various methods to protect

all people involved from hazards associated with electricity

 

[Safety Distance]

Commonly used with regard to power lines

 

[Isolation & Guarding]

 

[Enclosure of electrical parts]

A major concept of electrical wiring in general, e.g., 

all connections are made in a box

 

[Grounding]

[Insulation]

 

[PPE]

 

 

[Ground Fault Circuit Interrupter]

 

[Testing GFCI's]

 

 

[Lock out / Tag out Procedures]

 

[Recognize Hazards]

 

[Protective Measures]

 

 

[Closing]

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