Tree Branch vs Power Lines

By Johnny Cat in Science & Tech, Video Clips on Feb 28, 2010 at 7:08 pm

(YouTube Link)

Wait for it…

via Cynical-C via Arbroath


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  1. Kitti
    Feb 28th, 2010 at 7:17 pm

    Wow… just wow. That is so cool.

  2. Noma
    Feb 28th, 2010 at 7:56 pm

    It’s really scary when it’s a person and not just a branch…

  3. Poor Spellor
    Feb 28th, 2010 at 7:58 pm

    Scarey for one person but still kinda cool for everyone else!

  4. hsdell
    Feb 28th, 2010 at 9:02 pm

    More like “someone throws tree branch on power lines”!

    It doesn’t look like there is a tree tall enough nearby for a branch that size to fall across it with no leaves or smaller twigs.

  5. DerGreg
    Feb 28th, 2010 at 9:49 pm

    I didn’t know wood conducted electricity.

  6. Johnny Cat
    Feb 28th, 2010 at 9:54 pm

    Obviously the first gut reaction is to say someone threw a branch up there to make a cool YouTube video, but since we have no evidence of that…

    @DerGreg: this here is another example- http://www.youtube.com/watch?v=kVXi_0H_ZzM

  7. lewis82
    Feb 28th, 2010 at 10:54 pm

    Actually everything conducts electricity… but not the same amount.

    At such high voltages only ceramic blocks electricity.

  8. PChao
    Feb 28th, 2010 at 11:36 pm

    Did Marty and Doc finally make it back to 1981?

  9. ChinChiller
    Mar 1st, 2010 at 12:45 am

    I had that happen in my backyard once. Was a much bigger piece of wood. Made a hell of a racket and lit up the entire house at 3am. It was raining like crazy or else the falling fireball would have set the back 40 on fire.

  10. jermH
    Mar 1st, 2010 at 2:39 am

    May I know exactly what happened there? It looked like the branch was sitting between the live and neutral lines, then…. what?

  11. vmos
    Mar 1st, 2010 at 7:09 am

    I find it unlikely that someone was out in their back yard filming their cat or whatever at just the moment that this happened

    looks cool but don’t do it again

  12. shecky
    Mar 1st, 2010 at 10:11 am

    It isn’t so much the wood conducting electricity as the moisture in the wood. The whistling sound is the moisture escaping (as steam) as it’s heated by the current until it reaches that critical point when a full blown arc appears across the lines.

  13. NorwegianBlue
    Mar 1st, 2010 at 6:20 pm

    IIRC it’s the sap that conducts the electricity.

    What interests me is that it doesn’t arc until the wood combusts. Presumably the flame itself has very low resistance and started the arc.


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