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Old 13th Sep 2012, 10:11 pm   #6
cmjones01
Nonode
 
Join Date: Oct 2008
Location: Warsaw, Poland and Cambridge, UK
Posts: 2,669
Default Re: Failing Schaffner IEC Inlet Filters

Quote:
Originally Posted by dinkydi View Post
So recently, when another Schaffner mains filter failed, drawing 100s of Amps limited only by a circuit breaker, I decided to open it to see if a Rifa was hiding as suspected.
What evidence have we that it actually drew hundreds of amps when failing? The whole point of X2 capacitors is that they fail safely when they fail. Yes, the failure may involve fizzing, popping, clouds of acrid smoke and a few sparks, but that doesn't mean it's drawing uncontrolled amounts of current. Indeed, like many people here, I've seen a fair few of these things fail and in most cases that I've seen the equipment with the faulty filter capacitor has continued working normally with not so much as a blown 3A plug fuse.

Chris
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