If the Ground is Wet,Where the line/s have fallen,Stay Far away from it,Period!If someone is Stranded Between Powerlines,& Power co. or Help is 4hrs.Away or something like that,Lots of Dirt, Shoveled over a Line with Planks on Top,Would probably suffice, for a Rescue of The Stranded Person, But Only if it isn't raining/snowing!Note:There are Seperation Switchs to cut power on Power Lines,Usually Located on Power poles,& Usually 10-15' High,& Locked as well,But It could be done,If you cut the lock! This would work for an Imminent Threat Scenario! The Big Huge Metal Towers with The High Voltage Lines,I don't have a Clue,Short of a helo-lift!