Some jurisdictions (like mine) don't allow metallic conduit underground
(unless PVC coated or concrete encased) due to corrosive soil.
Steve
>
> Message: 1
> Date: Mon, 18 Dec 2017 19:09:11 -0500
> From: jimk8mr@aol.com
> To: rfi@contesting.com
> Subject: [RFI] Twisted pair in conduit?
> Message-ID: <1606c1a4ddb-1723-5895b@webjas-vad011.srv.aolmail.net>
> Content-Type: text/plain; charset=utf-8
>
> I've recently discovered a major RF noise source at our Florida condo -
> pumps or other swimming pool related equipment about 200 feet from my attic
> dipole. I'm not planning to do any followup with management until after the
> holidays, but I've been doing some thinking about it.
>
> There are some pumps outdoors, but any breaker panels or disconnect
> switches are inside a locked room I've not yet been inside to inspect. I
> suspect it would be easier to install toroid chokes inside - if so, are
> there any issues with NEC, or any other issues, about using twisted pair AC
> wiring inside (PVC) conduit between those panels and the outdoor motors?
>
>
> 73 - Jim K8MR
>
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