TB 8 Electrical Hazards Flashcards by Jake S | Brainscape

Q

TB 8 Ohm’s Law

A

Volts = Amps x ohms (current x resistance)

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Q

Extremely high voltage:

A

60k+ vols

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Q

High voltage range:

A

600- 59,999 volts

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Q

Low voltage range:

A

Less than 600 volts

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Q

Electricity Fire Hydraulics:

A

Conductor: Hose

Current: Water

Volts: Pressure

Amps: GPM

Ohms: Friction Loss

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Q

Transmission lines volts

A

69kV-1000kV

(mostly 230 inLA)

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Q

Recieving stations:

A

Steps power down to 34.5kV(sub station)

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Q

Distribution station:

A

34.5kV doem4.8kV (primary power lines)

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Q

Highest volts (high power)

what to lood for

A

high voltage sign
size of insulators
Distance b/t conductors

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Q

Spotting to electrical hazards:

A

spotting at min 1 span away
deny entry to area
notify dwp power side of poles affected

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Q

Firefighting with electrical hazards:

A

30/33/100 rule

30 degree fog

33 feet away min

100 psi min pumped to nozzle

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Q

Gauntlant gloves: rating/ tested

A

tested @ 10,000 volts every 60 days

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