Training Bullitin 8 Electrical Hazards

Question 1

What is considered high voltage?

Answer 1

Over 600 volts

Question 2

How big an area should be cleared for a downed conductor?

Answer 2

At least 1 pole span

Question 3

How often are gauntlet gloves tested by DWP?

Answer 3

Every 60 days

Question 4

How much do manhole covers weigh?

Answer 4

300 pounds

Question 5

How many volts are in street lights?

Answer 5

Up to 4800 volts

Question 6

According to training bulletin 8 - electrical hazards, what is extremely high voltage, high voltage and low voltage?

Answer 6

Excess of 60k

600-59,999

Under 600

Question 7

Street lights can be fed from conductors carrying what voltage?

Answer 7

120-6150 volts

Question 8

When applying water to an electrical fire, what is the rule for psi, cone and distance from object

Answer 8

30/33/100

Question 9

When using fire line tape to secure an area of life hazards zone, how should you apply strands?

Answer 9

Minimum of 3 horizontal lines with fire line or flagging tape at least 1-3 inches in diameter , with the words do not enter or don not cross

Question 10

When having occupants remove their own vehicle from possible electrical charge, what is the minimum distance they should move their vehicle from the danger?

Answer 10

35 feet

Question 11

DWP can de-energize power lines in a relatively short period of time according to training bulletin 8 a electrical hazards. What is the time frame?

Answer 11

Between 5-10 min

Question 12

When operating at a brush fire maintain a safe distance of ____feet from transmission towers, maintain at least ______feet from the outer most wires from transmission lines and never direct a hose stream into heavy plumes of smoke with in _____feet of high voltage wires.

Answer 12

35 feet
100 feet
100 feet

Question 13

According to training bulletin 8- electrical hazards, man hole cover can weigh _____lbs, and have been blown ____feet into the air and travelled _____feet

Answer 13

300 lbs
75 feet
125 feet

Question 14

What is the flash point of the cooling oil that is used electrical vaults?

Answer 14

300

Question 15

Low voltage secondary lines carry how many volts?

Answer 15

120-240 volts

Question 16

What are AMPS?

Answer 16

Current flow

Similar to gpm

AMPS= watts/volts

Question 17

What are volts?

Answer 17

Pressure

Question 18

What are watts?

Answer 18

The amount of actual power

Question 19

Generation facilities generate how much power?

Answer 19

4,000-20,000 volts

Question 20

The insulators on transmission towers are how far apart?

Answer 20

3’-20’ depending on voltage

Question 21

Receiving stations reduce power to how many volts?

Answer 21

34,500

Question 22

Distribution stations reduce power to how many volts?

Answer 22

4,800

Question 23

Overhead transformers reduce power to how many volts?

Answer 23

120/240 volts

Question 24

What are the 3 ways to determine high voltage lines?

Answer 24

1) high voltage signs
2) size of insulators
3) distance between conductors

Question 25

Heart paralysis can occur at how many AMPS?

Answer 25

4

Question 26

Tissue is burned at how many amps?

Answer 26

Greater than 5 amps

Question 27

Respiratory arrest has occurred when shocked at as low as how many volts?

Answer 27

49

Question 28

Communication cables can have up to how many volts?

Answer 28

50

Question 29

What is the explosive range of carbon monoxide?

Answer 29

12.4-74%

Question 30

Wet skin may have a resistance of up to how many ohms? Dry skin?

Answer 30

Wet skin- 1000 ohms Dry skin- 100,000 ohms

Question 31

What is the lowest amps a fuse or circuit breaker will open?

Answer 31

15 AMPS

Question 32

For every minute defibrillation is delayed chance of survival decreases what percent?

Answer 32

10%

Question 33

600 volts can be up to how many amps?

Answer 33

4