[RFI] Adding a shield to the utility service lines?

[Dale J.]

In my neck of the woods the power company owns the wires to the point of splicing.  I own the wires from there, through the conduit to the meter and into the house.  The power company owns the meter too.  This is what I've been told from reliable sources.  I thought the power company owns everything though the meter, but I guess not.  

I need a new mast head.  I'll call the power company and say I'm going to cut MY wires and see if they'll come out pronto.    

Dale, k9vuj



On 05, Dec 2013, at 14:28, Kenneth Goodwin <krgoodwin at comcast.net> wrote:

> When I built my house, I decided to go underground from the pole (step-down
> transformer) to the house.  I had to purchase the wire and pay the
> electrical contractor to bury it in conduit (read as expensive for 200 A
> service).  As 'my' line came off the pole, I had the contractor install my
> surge device spliced into 'my' line near the top of the pole.  A few years
> later, the power company removed it without telling me.  I complained.  In
> short, they control everything from the service meter outbound.   No
> questions tendered as long as you desire electricity.  I ended up installing
> a surge protector system in the circuit breaker system.  Ken K5RG
> 
> 
> Message: 2
> Date: Wed, 04 Dec 2013 21:45:38 -0800
> From: Jim Brown <jim at audiosystemsgroup.com>
> To: rfi at contesting.com
> Subject: Re: [RFI] Adding a shield to the utility service lines?
> 
> On 12/4/2013 9:33 PM, Aaron Kreider wrote:
>> Another crazy option
> 
> Yes, it is.  Shielding addresses differential mode RFI, and most trash on
> power lines is a common mode signal and radiates just like any other
> antenna. Although I tried a bunch of big clamp-ons on a twisted triad power
> feed back in Chicago, it was long before I understood how ferrite chokes
> work, and I'm now nearly convinced that it was a bad idea because a string
> of beads is inductive.
> 
> Even if you could shield that line (it belongs to the power company, so it's
> not a good idea), the common mode current would flow on that shield, and you
> would still need to choke it to prevent it from radiating.
> 
> 73, Jim K9YC
> 
> 
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