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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