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Utility Emergencies > Electrical > Flashcards

Electrical Flashcards

0
Q

This is the force motivating electrons to flow in a circuit?

A

Voltage

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1
Q

What are the two basic properties of electricity?

A

Voltage and current

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2
Q

This is a specific measure of potential energy that is always relative between two points?

A

Voltage

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3
Q

This is the amount of electricity flowing through a wire or conductor?

A

Amps

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4
Q

What is included in a electrical distribution system?

A

Power plants
Transmission lines
Substations

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5
Q

Who owns power poles?

A

Either the power company or telephone company.

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6
Q

What is the voltage in house current?

A

120/240

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7
Q

What are the powerlines called that go from the pole to a house or business?

A

Secondary lines

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8
Q

What is the safest insulator for electricity?

A

Distance

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9
Q

How are electric fires best handled?

A

By shutting down the power source

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10
Q

What is the most hazardous condition involving powerlines?

A

When the lines have not come in contact with the ground.

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11
Q

How far should you stay away at incidents where an individual is in the vehicle that has downed power lines on it?

A

30’

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12
Q

Fire department personnel should not leave the scene of any wires down incident in which the wires are still actively what?

A

Arcing

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13
Q

How can you assist the utility company and pinpointing the exact area of the issue of a power pole?

A

By providing a pole number from a safe location to the dispatch center

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14
Q

What can be used to extinguish pole fires?

A

Dry chem and CO2 extinguishers

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15
Q

Should doors or shutters be opened prior to the power being turned off and confirmation from the utility company on the scene?

A

No

16
Q

After power is removed from the ground transformer it is recommended to extinguish any remaining fire with what?

A

Dry chem or CO2 extinguishers

17
Q

To be proactive on a underground electrical fire what can awaiting crews do before the power company arrives?

A

Ventilate the building

18
Q

Many transformers labeled non-PCB contain up to what percentage of PCB?

A

10%

19
Q

What is a interstitial space?

A

It’s a space located between regular use floors commonly located in hospitals and lavatory type buildings

20
Q

During structure fires where is normally the safest place for the fire department to lock out power?

A

Electric panel

21
Q

What type of hospital should electrical burn patients be transported to?

A

The burn center

Utility Emergencies (8 decks)

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