[TenTec] OT: Power Pole noises

[Dr. Gerald N. Johnson]

On Tue, 2008-06-10 at 14:33 -0700, Jim WA9YSD wrote:
> It is possible for lightning surge to char some insulator, not sure 
> if it would degrade lightning arrestor, on the power poles, such 
> that it creates RFI.

Lightning arrestors go faster than insulators and DO make lots of noise
sometimes. Sometimes the noise lasts only milliseconds, then you sweep
up the pieces of the arrestor from the street and neighboring yards.

Rifle shots bouncing off insulators often degrade their insulation
properties.
> 
> Here in Wisconsin Salt spray coast the insulators and noise starts up.  
> At times it gets bad enough to start charing one if It does not rain, 
> or snow hard enough for the abrasion, to take off the salt residual. 
> 
>  Keep The Faith, Jim K9TF/WA9YSD
> 
73, Jerry, K0CQ