[TowerTalk] AFCI RFI?

KD7JYK DM09 kd7jyk at earthlink.net
Thu Mar 16 16:45:49 EDT 2023


"There was no RF - I wasn't on the air then - but the breakers would 
trip every time the laserjet printer cycled. We had to switch to an 
inkjet printer."

 From what I heard, it was pretty typical, at least back then.  Can't 
say for now, and at many tens of dollars each, with just about anything 
made in the past century doing fine, I'm not keen in trying to find out 
at my own expense.

If all the manufacturers want to send a pallet of every item they ever 
made, I'll test them, and whatever fails, set on fire, and send the 
failed remains back postage due- as a reminder.

I noticed it myself, turning something on/off, even turning on another 
breaker, with no load, on another branch, any leakage in the household, 
through bad wiring, individual items plugged in, even noise on the 
mains, all caused the AFCIs to trip within just about 1 second, line 
noise was random, just when you thought all was well, all other branches 
disconnected, bang.  Off.  I tore the place apart looking for bad 
wiring, only to find out later, the service itself was rubbish.

Chatter in the forums suggested the very issues that exist on a typical 
wire, are much along the lines of what the AFCI breakers look for to trip.

Other comments have been, since code calls for a certain device, and the 
inspectors look for a certain device, make sure it's there.  Once 
cleared, toss it, and swap for something that doesn't cause problems. 
That's just word on the street, I'm not suggesting, or recommending 
anything.

It reminds me of the comments from some real estate agents.  "Houses 
must have CO detectors in them when sold.  Buy one, put the package on 
the counter, sell the house, then return the detector."  Requirement 
met.  I've actually seen/heard this repeatedly.

Anyway, maybe AFCIs work better now.  I guess, try, and find out.

Kurt



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