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