Safety Chapter 5
Which electrical current can cause cardiac arrest, severe burns, death probable
10,000 milliamperes
Voltages from overhead power lines can range from ___________ volts
120-750,000
Arc Flash temps. have been recorded as high as _____ degrees Fahrenheit
35,000
Which electrical current can cause extreme pain, respiratory arrest, severe muscular contractions, death possible
50-150 milliamperes
Which electrical current can cause painful shock, loss of muscular control?
6 - 25 milliamperes (women)
Which electrical hazard is the sudden release of electrical energy through the air when a high-voltage gap exists and there is a breakdown between conductors?
Arch Flash/Arc Blast
Which is the most common shock-related injury?
Burns
Whats the acronym BESAFE stand for?
Burns, Electrocution, Shock, Arch Flash/Arc Blast, Fire, Explosions
What type of GFCI controls an entire circuit and is installed as a replacement for a circuit breaker on the main circuit board.
Circuit Breaker GFCI
____________ will not protect you against electrical shock
Circuit breakers
What are the major types of Electrocution hazards in construction?
Contact with overhead power lines, contact with energized sources, and improper use of extension and flexible cords.
Which electrical hazard means "to kill with electricity"?
Electrocution
Electrocution was the ______ leading cause of death in construction in 2005.
Fourth
a ground fault circuit interrupter that is designed to protect people against electrical shock
GFCI
What type of GFCI is often found on construction sites, outdoor areas, or other damp locations?
Receptable GFCI
Which electrical hazard results when the body becomes a part of the electrical circuit?
Shock
What type of GFCI is combined with an extension cord to add flexibility.
Temporary/Portable GFCI
What are the hazards of extension and flexible cords?
Wear and tear, cords that are not 3-wire type, more susceptible to damage than fixed wiring
The covering of an overhead power line is primarily for ____________.
weather protection