RE: Bad Fuse vs. Good Fuse

and a few anecdotes were provided as well. thanks, -doug Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, CO 80535 USA From: POWELL, DOUG [mailto:doug.pow...@aei.com] Sent: Friday, May 23, 2003 4:57 PM To: EMC-PSTC (E-mail) Subjec

RE: Bad Fuse vs. Good Fuse

resses the fuse will encounter under all conditions and then match the fuse characteristics to the stresses. Dave Cuthbert Micron Technology -Original Message- From: POWELL, DOUG [mailto:doug.pow...@aei.com] Sent: Friday, May 23, 2003 4:57 PM To: EMC-PSTC (E-mail) Subject: Bad Fuse v

Re: Bad Fuse vs. Good Fuse

Hi Dan: Thank you for giving us straight answers and helping us to overcome the "conventional wisdom" about fuses. Several years ago, I put together an article addressing fuses, their operation, and how to select the fuse rating. See: http://www.ewh.ieee.org/soc/emcs/pstc/psn/ Then, do

Re: Bad Fuse vs. Good Fuse

Dan I agree in general with your comments. I will go so far as to stipulate many design engineers don't know their hole from an ass in the ground as far as properly specifying fuses. That being said the fuse industry has a problem. I have seen many, genuinely defective fuses. I have seen even m

RE: Bad Fuse vs. Good Fuse

mo.ieee.org cc:

RE: Bad Fuse vs. Good Fuse

As a fuse manufacturer, I have read all the e-mail on this subject with great interest. Unfortunately, many responses emphasize common misunderstandings. In the fuse industry, there is no such thing as a "Bad" fuse. The chain of e-mails clearly indicate why we avoid this word due to its various

RE: Bad Fuse vs. Good Fuse

fuse... only thing I have ever seen is the wrong fuse used, that didnt blow..but the right fuse always did. Richard, From: don_borow...@selinc.com [mailto:don_borow...@selinc.com] Sent: Tuesday, May 27, 2003 11:31 AM To: EMC-PSTC (E-mail) Subject: Re: Bad Fuse vs. Good Fuse This seems to

Re: Bad Fuse vs. Good Fuse

(from Cambridge Advanced Learner's Dictionary ) bad (LOW QUALITY) adjective worse, worst low quality; not acceptable:

Re: Bad Fuse vs. Good Fuse

This seems to be a problem of semantics. In the case of a fuse, a "failure" is a success - the fuse succeeded in protecting the circuit (neglecting the cases where the fuse failed to do its job, discussed elsewhere). I clearly recall some ads for Timken Steel in the 1960s which discussed the

Re: Bad Fuse vs. Good Fuse

I read in !emc-pstc that richhug...@aol.com wrote (in <095A00F3.5FF82361 .0ba45...@aol.com>) about 'Bad Fuse vs. Good Fuse' on Mon, 26 May 2003: >It could >be that the faulty components that John Woodgate mentioned fall into this >category. The epidemic failure

re: Bad Fuse vs. Good Fuse

o operate under those conditions?}; possibly naughty fuse, possibly naughty designer. Oh dear, I've fallen into the trap of ascribing fuses with some kind of will. Oh well, at least I'm not alone... Richard Hughes Safety Answers Ltd. From: ed.pr...@cubic.com [mailto:ed.pr...@

re: Bad Fuse vs. Good Fuse

o operate under those conditions?}; possibly naughty fuse, possibly naughty designer. Oh dear, I've fallen into the trap of ascribing fuses with some kind of will. Oh well, at least I'm not alone... Richard Hughes Safety Answers Ltd. From: ed.pr...@cubic.com [mailto:ed.pr...@

Re: Bad Fuse vs. Good Fuse

I read in !emc-pstc that douglas_beckw...@mitel.com wrote (in ) about 'Bad Fuse vs. Good Fuse' on Mon, 26 May 2003: >You can be almost certain that it was >not caused by a "bad" fuse. No, that is not true, or at least it wasn't when we were putting 20

Re: Bad Fuse vs. Good Fuse

To: "EMC-PSTC (E-mail)" Sent by: cc: owner-emc-pstc@majordom Subject:

Re: Bad Fuse vs. Good Fuse

Doug, The ony experience I ever had with "bad" fuses blowing prematurely was a soldered-in picofuse laying across a heavy copper trace on a PCB. This trace was retaining enough heat after soldering to weaken the fuse, causing premature failure in the field. Raising the body of the fuse off the

Re: Bad Fuse vs. Good Fuse

I have seen one instance where a fuse opened during a vibration test. I think that was a BAD FUSE. Best Regards Bob Schlentz This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pst

RE: Bad Fuse vs. Good Fuse

Seems to me - a bad fuse is open. Simple as that. From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of POWELL, DOUG Sent: Friday, May 23, 2003 4:57 PM To: EMC-PSTC (E-mail) Subject: Bad Fuse vs. Good Fuse Hello all, Recently, in my company, we&#x

Re: Bad Fuse vs. Good Fuse

I believe the term "bad," as applied to a fuse which has functioned as intended, is a report of its (no pun intended) current condition, rather than its suitability for the purpose. A better word, I think, and still accessible to laymen, is "blown." >> On the other side fuses and fuse holders we

Re: Bad Fuse vs. Good Fuse

Doug when I ran my own section of a factory I forbad my testers from using the term "bad" or its military equivalent "NFG" on their failure tags although we saw the term many times on field returns. Bad isn't descriptive. Instead they were instructed to simply describe why they thought the unit wa

Re: Bad Fuse vs. Good Fuse

I read in !emc-pstc that POWELL, DOUG wrote (in ) about 'Bad Fuse vs. Good Fuse' on Fri, 23 May 2003: >Recently, in my company, we've been discussing what exactly constitutes a >good or bad fuse.  In this industry we often hear that the trouble with a >def

Re: Bad Fuse vs. Good Fuse

lto:doug.pow...@aei.com] Sent: Friday, May 23, 2003 3:57 PM To: EMC-PSTC (E-mail) Subject: Bad Fuse vs. Good Fuse Hello all, Recently, in my company, we've been discussing what exactly constitutes a good or bad fuse. In this industry we often hear that the trouble with a defective product w

RE: Bad Fuse vs. Good Fuse

-Original Message- From: POWELL, DOUG [ mailto:doug.pow...@aei.com] Sent: Friday, May 23, 2003 3:57 PM To: EMC-PSTC (E-mail) Subject: Bad Fuse vs. Good Fuse Hello all, Recently, in my company, we've been discussing what exactly constitutes a good or bad fuse. In this indust

Bad Fuse vs. Good Fuse

Hello all, Recently, in my company, we've been discussing what exactly constitutes a good or bad fuse. In this industry we often hear that the trouble with a defective product was, "the fuse was bad." I occurred to me that the fuse is not bad, it performed exactly intended. In fact if the prob