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July 2007

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Subject:
From:
Brian Ellis <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Brian Ellis <[log in to unmask]>
Date:
Thu, 19 Jul 2007 09:20:12 +0300
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I've seen something similar that strikes me as equally hazardous. Each 
spring, we get a few days of khamsin weather from N. Africa with a very 
fine and sticky dust. The Electricity Authority of Cyprus sprays the 
insulators of their 132 kV lines from a hoppicopter to remove the dust, 
using a long wand attached to the fuselage. They start with the wand at 
the bottom of each insulator and work slowly upwards to the top, so that 
they must go from the full volts to ground, over about 20 seconds. Six 
insulators/pylon, ~6-9 pylons/km depending on the terrain, ~500 km of 
lines: flying precision probably within ±20 cm!!!!!!

Brian

Steve Gregory wrote:
> I know it's not Friday yet, but it seems pretty quiet out there. I just
> back from vacation on Monday and haven't posted much...that's why I've
> been so quiet.
>  
> I got a video clip yesterday that was pretty interesting. It's of a
> "high-power" sort of job that makes one wonder how much these guys get
> paid for doing it.
>  
> http://www.stevezeva.homestead.com/files/high_power_worker.wmv
>  
> I don't think anyone could pay me enough to perform that job...
>  
> Steve Gregory
>  
>  
>  
>  
> 
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