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Why does high wind cause power cuts?

Andy Millar
May sound like a stupid question but then "there's no such thing as...". Is it typically because the phases in a three phase line touch? Or because branches blow into the lines and arc across? Or sometimes one thing, sometimes another?


Google let me down, so posting this - in one of those brief intervals when we do have power today :) It's the fact that what ever is causing them is obviously easily resettable - by the rate ours has been going on and off today - that made me start thinking about it. (It's on the HV lines affecting my village and half the adjacent small town. But not, you'll all be relieved to hear, the Ginsters' pasty factory which is on the other side of town :D ) 


Thanks,


Andy
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    Hi Mike,


    Many thanks for the links and description, I must admit I was thinking more about root causes - and for example I hadn't thought about wet insulators. As you say, vegetation seems pretty likely. Sometimes it's just been off for a few seconds, sometimes for an hour or two at a time (since yesterday lunchtime). So presumably not a line down, but something that causes a trip that's sometimes self recovering and sometimes has to be cleared.


    Thankfully it's stayed up all evening, and even more thankfully I use a laptop rather than a desktop so have just about been able to carry on working today!


    Cheers,


    Andy
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  • 0
    Hi Mike,


    Many thanks for the links and description, I must admit I was thinking more about root causes - and for example I hadn't thought about wet insulators. As you say, vegetation seems pretty likely. Sometimes it's just been off for a few seconds, sometimes for an hour or two at a time (since yesterday lunchtime). So presumably not a line down, but something that causes a trip that's sometimes self recovering and sometimes has to be cleared.


    Thankfully it's stayed up all evening, and even more thankfully I use a laptop rather than a desktop so have just about been able to carry on working today!


    Cheers,


    Andy
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