Drill Manual - Utilities

Question 0

Any voltage higher than the normal residential supply of ______ , is considered high voltage and beyond the capabilities of firefighters to handle safely.

Answer 0

240 volts

Question 1

What phase of electrical are found in homes typically?

Answer 1

single-phase

Question 2

Green electrical boxes carry what type of power?

Answer 2

4KV to 12KV

Question 3

A down power line may be able to cause a “pool” of how may feet?

Answer 3

10 feet

Question 4

Which side of things do we disconnect electricity?

Answer 4

customer side

Question 5

How should a firefighter exit an energized vehicle?

Answer 5

By jumping from it

Question 6

How should a Firefighter exit a vehicle in contact with high voltage?

Answer 6

JUMP - only if on fire.

*otherwise do not leave the vehicle

Question 7

If the pole is burning, extinguish the fire only within __ feet of the capacitor

Answer 7

2 feet

Question 8

If the capacitor is burning stay a minimum of __ pole spans from the fire.

Answer 8

2

Question 9

When contacting FCC, the fire company should state the ____________ and whether the wires involved are from pole-to-pole or from pole-to-structure

Answer 9

pole number

Question 10

Wires adjacent to the downed or sagging wire may be weakened so firefighters should secure a “hot” zone around the incident of at least _________ from the broken or sagging wire. KEEP THIS AREA CLEAR

Answer 10

one-pole span

Question 11

What’s the name of the electrical tester we use?

Answer 11

Slater tester

Question 12

A ___ circuit has been de-energized by throwing a breaker, but it has not been isolated�

Answer 12

dead

Question 13

PV systems are comprised of three main components? (Solar)

Answer 13

modules, an inverter, and conduit with wire

Question 14

A solar panel….Low or High Voltage?

Answer 14

Low Voltage

Question 15

When combined (solar panels), these strings can generate up to ____ volts of DC electricity?

Answer 15

600 volts

Question 16

Discharge time may be from ______ minutes. Securing solar panels

Answer 16

5 - 15 minutes

Question 17

Gas pressure generally in residential areas is?

Answer 17

60 psi

Question 18

Gas Leak:

The size of the hot zone should be at least ___
in radius around the leak including any adjacent homes or
buildings

Answer 18

200’

Question 19

Gas pressure in most homes is about ___ pound per square inch, while larger complexes, hotels, and small commercial buildings may be as high as ___ psi.

Answer 19

1/4 pound in homes

up to 5 psi in commercial

Question 20

What’s considered oxygen deficient atmosphere?

Answer 20

19.5% and lower