205.20 Response To Power Lines/Energized Electrical Equipment Flashcards
When does an indirect path to ground happen?
When you are holding something or touching an object that is in contact with something energized
Electricity always seeks its lowest level or ground. It will travel any path it can as it seeks a ground. A direct path to ground is when _______.
Contact is made between something energized and a portion of your body
What could indicate step potential?
Tingling sensation in the feet
Electrical equipments is classified as what three things?
Energized
Deenergized (cannot be 100% guaranteed)
Dead (confirmed by utility representative after grounding lines)
Use caution when spraying water on or around energized electrical equipment. Hose streams conduct current! Never spray directly into the power lines. Use a fog spray at the base of the pole. Your primary responsibility is ________.
To protect the surrounding area
When power lines are down, they will energize the ground around them. For example: point of ground contact could be 7160 V. This voltage will lessen as it radiates out from this point; for example ______ volts.
6000
How can lines be reset and become hot or energized again?
By manual operation of a switch
By automatic re-closing methods
By induction, where a deenergize line can become hot if it’s near an energize line
Through backfeed conditions
Power lines tend to have “reel memory” which means what?
It may curl back or roll on itself when down
Hose streams conduct current, never spray directly into power lines. How should you apply water if necessary?
Fog spray at the base of the pole
What are dangers of PCB hazards?
Smoke potentially fatal
Avoid and contain pools of oil around transformers
In periods of high activity the company officer may choose to what while waiting for the utility company?
Leave one crewmember on scene
