In a previous house the only solution I found was to use by-pass caps on the
GFI. Make sure they are rated for more than appropriate voltage!
73,
Joe kk0sd
-----Original Message-----
From: rfi-bounces@contesting.com [mailto:rfi-bounces@contesting.com] On
Behalf Of W2RU - Bud Hippisley
Sent: Sunday, October 17, 2010 11:20 AM
To: Phil Snyder
Cc: rfi@contesting.com
Subject: Re: [RFI] GFCI
On Oct 17, 2010, at 10:03 AM, Phil Snyder wrote:
> Each wall of the
> garage has it's own circuit which has a GFCI to protect it....I find that
the GFCI is tripped
> occasionally.
I'm not clear from your posting as to whether your GFCIs are at the outlets
or in the breaker box. If they're in the breaker box, the wiring from the
outlets is indeed likely to be acting like an an antenna and bringing RF
back to the GFCI, which then trips (if you're lucky) or chatters (if you're
not).
I had that problem with some "legacy" wiring in the older part of our home.
I solved it by switching to duplex outlet GFCIs. In general, I found that
easier to do that than to figure out how to filter power wiring at the
breaker box. If you do use outlet GFCIs (i.e., if your code will let you),
be sure to place them at the FIRST outlet in each circuit's wiring run
beyond the breaker box. That way, they protect everything "downstream" from
that first outlet. Placing GFCIs at the first outlet will tend to minimize
the length of the "antenna" seen by a GFCI. It's the length of the run
BEYOND the GFCI that acts as the antenna, since it's the apparent leakage on
that run that the GFCI is trying to sense. If a branch circuit runs all
over the place from outlet to outlet, however, that may not work for you.
Bud, W2RU
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|