Please correct me if I am wrong, but I thought that twisting wires creates a
magnetic field and increases radio frequency interference.
----- Original Message -----
From: "Richard L Ratico" <richard.l.rat...@valley.net>
To: <re-wrenches@lists.re-wrenches.org>
Sent: Friday, March 27, 2009 6:28 AM
Subject: Re: [RE-wrenches] Odd Outback FNDC/Mate issue
Howie,
Very high, rapidly fluctuating, DC currents are carried by battery cables.
These
produce powerful, local magnetic fields. Many sources recommend twisting
the
cables together to reduce RFI. I have found this twisting hard to do well.
Steel
conduit accomplishes the same thing, more effectively. Resist the
temptation to
put any other wiring in that conduit. This would most likely be a code
violation
in any case; wires of different voltage ratings in the same conduit are
generally prohibited.
Dick
Dick Ratico
Solarwind Electric
--- You wrote:
Outback has now determined that somehow this induced current from the
battery cables into the voltage sensing wires for the FNDC can cause the
communication system to get overwhelmed, but they are not quite sure how.
None-the-less, as of this week, they are recommending to run the FNDC
voltage sensing wires (plus and minus) *not* along side the inverter
cables.
Hopefully, this is the end of this story...
Has anyone experienced any similar symptoms? This seems a first for OB,
but I thought I'd ask here.
--- end of quote ---
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