Dry wood/soil ARE Not Conductors for Any Voltage,However with The Mega-Amps Powering Kilovolt lines,They aren't much of an Insulator,In that regard,That's For Sure!You Excluded what I had to say,Below that!Also It's Not Advice,It's a Suggestion for A Haste Scenario,ie. What is Immediately at Hand to Help.Either you Help,or You stand there doing Nothing,Your Choice!