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scott wrote:
>> I was thinking more of when everything has been covered in a
>> continuous layer of water...
>
> Are you sure that every part between the pylon structure and the cable
> can get wet to form a continuous path? It seems to me like part of the
> design of the insulator is to keep other parts dry:
>
> http://en.wikivisual.com/images/3/33/Pylon.detail.arp.750pix.jpg
How do you figure that?
> Even if it does *all* get wet, it's going to be a really thin layer of
> water, and even non-pure water is not a particularly good conductor, if
> you do the math the resistance probably comes out pretty huge.
You're aware that those cables are carrying several *million* volts?
Still, perhaps all that current would just vapourise the water - and
then it wouldn't be there any more...
> BTW, that photo also shows the dampers attached on the cables either
> side of the fixing point.
Well, this stuff clearly works - it's just a mystery to me *why* it
works. ;-)
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