Electrical Safety Flashcards
what is a conductor?
Something that passes electricity well. EX: metals.
What is an insulator?
Something that stops or slowly passes electricity. EX: rubber, glass, dry wood etc.
What is electric shock?
Occurs when your body completes a normally closed circuit.
What are the affects of electrical shock on body?
Tingling to cardiac arrest.
What are the factors to be considered for electrical shock effects on the body?
Amount of current through body. Path through body. How long current passes through body. Frequency of current.
What is “freezing”?
Freezing occurs when the body is electrically shocked and the muscles contract.
How do you prevent static electricity?
Ground to the earth.
Where is staic electricity more frequent?
In cold dry locations.
Most electrical accidents are a result of three factors, what are they?
unsafe equipment or installation. unsafe enviroment. unsafe practices.
What is “guarding”?
Guarding is seperating area where electricity is 50 volts or more and labeling with limited access and danger.
What is “grounding”?
Grounding is creating a low resistance path that connects to the earth.
What are the safety considerations with over head power lines?
Stay 10’ away if voltage is 50,000 or more and increae distance by 4” for each additional 10,000 volts.
What are the safety considerations for tools and equipment?
De-energize the equip. Use lockout and tag procedures. Use insulating protective equip. Maintain safe distance.
