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- Newsgroups: sci.physics
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!caen!destroyer!cs.ubc.ca!newsserver.sfu.ca!news
- From: palmer@sfu.ca (Leigh Palmer)
- Subject: Re: _Voltage_ ratings of fuses
- Message-ID: <1992Nov19.223618.2711@sfu.ca>
- Sender: news@sfu.ca
- Organization: Simon Fraser University
- References: <1egpleINNie8@crcnis1.unl.edu>
- Date: Thu, 19 Nov 1992 22:36:18 GMT
- Lines: 26
-
- In article <1egpleINNie8@crcnis1.unl.edu> cbettis@unlinfo.unl.edu (clifford
- bettis) writes:
- >
- >The other day the fuse blew in our microwave oven and in the process
- >of replacing it, I noticed it had a voltage as well as a current
- >stamped on it. I'd been aware of this before but never really thought
- >about it. Why is there a voltage rating for a fuse; is it a matter of
- >how much resistance the fuse has, or possibly some sort of breakdown
- >by arcing limitation? If it is a matter of resistance, why not always
- >use the fuse with a lower voltage rating?
-
- After the fuse blows there may be a voltage drop across it. That's what one has
- to worry about.
-
- I have replaced the fuse in my microwave oven twice. To do so I have to take
- the whole case off the damn thing - they were too cheap to put on a shielded,
- socketed fuse. Do you have the same problem? I note that there is an access
- door to the oven light bulbs.
-
- I'm sure lots of perfectly serviceable microwave ovens get discarded when thay
- blow fuses because of this "feature". It is probably due to some unreasonable
- radiation requirement for these beasts.
-
- Leigh
-
- Leigh
-