Response to Power lines/Energized Electrical Equipment MP205.20 Flashcards
It is our policy to respond to reports of power lines down and other hazards involving energized electrical equipment (transformers, substations, electric vaults) for what 2 purposes?
Fire Control and public safety.
An indirect path to ground occurs when you are holding something or touching an object that is in contact with something that is what?
Energized
Use caution when spraying water on or around energized electrical equipment. Hose streams conduct current! Never what directly into the power lines?
Spray
Electrical equipment is classified as what 3 ways?
- Energized
- De-energized (cannot be 100% guaranteed)
- Dead (confirmed by utility representatives after grounding the lines(s).”
RESPONSE TO POWER LINES DOWN
6 action
• Request utility company
• Consider all down wires as “energized.”
• Place apparatus away from not under or near “down lines and power poles”
• Secure the area/deny entry.
• Periods of high activity; company officer may choose to leave one (1) crewmember on-scene with a
radio to wait for utility company.
• In the event of multiple lines/poles down over a large area, call additional resources.”
Down Power Lines on or touching a Vehicles
5 action
• Request utility company.
• Do not touch vehicle
• Have occupants remain inside the vehicle
• Place apparatus a safe distance away from down lines.
• If occupants must leave the vehicle (fire or other threat to life) instruct them to open the door, not
step-out! They should jump free of the vehicle without touching vehicle and ground at the same
time; they should walk away from the vehicle with very small steps”
SUB-STATION, TRANSFORMER, ELECTRICAL VAULT AND MANHOLE FIRE
6 action
• Request utility company.
• Clear the area.
• Be aware of explosion potential.
• Place apparatus in a safe location away from overhead power lines.
• Protect exposures.
• Do not make entry until the utility representative has verified that the above electrical equipment
has been de-energized. The utility representative may have to make entry to uninvolved sections to
safely de-energize the equipment.”
RESPONSE TO POWER POLE FIRES
5 action
• Request utility company.
• Consider all wires and poles as “energized.”
• Place apparatus away from “down lines and power poles” and out from under involved overhead
lines that could fail and fall onto equipment or personnel.
• Secure the area/deny entry.
• Do not make any fire attack until the utility representative has verified that the electrical equipment
has been de-energized.”
Lock out of down power lines occurs after how many attempts to re-energize?
3
Always consider downed lines what?
energized
Never spray directly into power lines, use a
______ at the base of the pole.
fog spray
