Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
_____ is the measure of flow of current through an object
|
amperage (not voltage)
|
|
_____ milliamps can cause death
|
50
|
|
T/F: bunker gear provides NO protection from electrical shock
|
falls: PPE provides limited protection from electrical shock (boots must be pure rubber with no steel toe and no carbon products to be nonconductive)
• wear full PPE on wires down/arcing |
|
when wires arcing/power lines down, where should the apparatus be parked?
|
A full span of wires away (two-poll distance)
• always establish a hot zone |
|
if transmission wire is broken what might happen?
|
Transmission wire has memory and tends to return to a spooled state
|
|
on electrical pole, what is the poll number and where can it be found?
|
Poll numbers are on a yellow plate containing six digits and are vertically positioned
• these can be used to notify dispatch/power utility company |
|
if a powerline is found down at a multicompany incident, _____
|
notify command immediately
|
|
can Austin energy deenergize a line remotely from a central control room downtown?
|
Yes
|
|
of the tires of the vehicle sufficient insulation when in contact with down power lines?
|
Because of high carbon content and tires, they can burst into flame
|
|
if an occupant must exit an energized vehicle instruct them to _____
|
• jump from further door away from wire
• Bunny hop out of the area |
|
with a ground-level transformer fire, do not attempt to use _____ or _____.
|
Dry chem or carbon dioxide extinguisher (class ABC or BC)
|
|
if an elevated transformer is on fire:
|
let it burn (applying hose streams will spread fluid to ground making fire worse)
|
|
_____ can result in shock without even touching the conductor connected to the power system
|
electromagnetic fields near high-voltage wires at a substation
|
|
do not attempt to fight the fire at a substation without _____
|
an electric utility company member on scene to verify that power is shut off and equipment grounded
|
|
_____ are capable of exploding with deadly force, shrapnel and superheated oil
|
Transformers in underground vaults
|
|
small class C fires can be extinguished with _____
|
carbon dioxide and dry chemical extinguishers
|
|
aerial devices should be at least _____ from overhead utility lines and less verified off; even then never operate within _____ of overhead wires.
|
• 15'
• 10' |
|
firefighters should maintain a _____ clearance from electrical lines or equipment at all times
|
15'
|
|
according AFD policy, if electrical meter must be pulled, who must be request? C
|
electric utility company
|
|
which extinguishing agents are very conductive around electricity other than water?
|
Foam type extinguishing agents
|
|
what are two good indications of an open neutral or faulty ground
|
• flickering lights
• appliances/plumbing that give shocks |