Working on any voltage like that isn’t being grounded but having the line and the helicopter connected with the jumper brings everything to the same potential. This is just like a bird landing on the line. Lineman can also work out of an insulated lift bare handed on high voltages too. I never got to do that but did work on high voltages with rubber gloves.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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