nanog mailing list archives

Re: Presumed RF Interference


From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Mon, 6 Mar 2006 09:49:39 -0500


On Mon, 06 Mar 2006 21:17:17 +1100
Matthew Sullivan <matthew () sorbs net> wrote:

(In the 
UK where I served my apprenticeship, we were required to provide earth 
bonding to the copper plumbing system, additional bonding at every 
exposed fitting - this caused a few issues when plumbers first starting 
using PVC pipes)... 

The US National Electrical Code (which has no national force of law;
it's a model code voluntarily adopted by many jurisdictions) now bars
grounding to pipes except within (as I recall) six feet of where the
pipe enters the building, for precisely that reason.


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