Just be carful not to get the blade in the coated lines....you'll know because there will be a spark and it will melt the teeth on the blade. The wort part it open the 120 line to the elements(yes just a pin hole) and it gets the white death of aluminum corrosion taking place........nothing happens right away but down the road it an cause problems.
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I do everything I can so I don't hit the lines or draw against them. We do have older services where the shielding is breaking off. Unless the branches are dripping wet it would be a really rare occurrence to get any arc from a branch laying on a house service.
If for some reason I would lose control of the pole I would just let it go. No way would I hold on to see what may or may not happen.
It is a very valid concern still working around those lines. Care must be taken at all times for sure.
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