[RFI] PG&E IR line fault detection advertisements

[N7HIY]

rick,
you ought to see the size of the crater they dig out and haul off when one 
of the old ones boils over or blows. everyone wears full enviro bunny suits, 
looks like al Quada has hit again.  costs 10 of thousands of $$$$ in 
manhours, equip, disposal costs and reporting to 1000 state and fed. 
agencies.
arcs cause ir heating as well as rfi, lots of audio waves also, usually in 
the 20Khz range up. ultrasonic acoustical receivers are common in power line 
fault locating.

Cliff N7HIY

----- Original Message ----- 
From: "Rick Karlquist" <richard at karlquist.com>
To: <rfi at contesting.com>
Sent: Thursday, March 10, 2005 11:33 AM
Subject: [RFI] PG&E IR line fault detection advertisements


> PG&E is running a TV ad campaign touting some infra-red
> power line fault detection system.  Does anyone have info
> on this?  I am wondering if I should add it to my arsenal
> of power line noise diagnostic equipment.  Is there a
> correlation between faults that are detectable with IR
> and faults that cause RFI.
>
> The system might be just some simple minded thing that
> measures power transformer temperature, in which case
> we don't care.  A power company engineer once told me
> that they just wait for transformers to boil over and
> go up in flames before they replaced them.  There was
> no preventive maintenance.
>
> Rick N6RK
>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi 



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