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From: <gmiiii@in*.co*>
Date: Wed, 16 Oct 1996 19:30:03 -0700
Subject: Re: Fuses and fusible links
To: Dittner@ao*.co*, gmiiii@in*.co*, dmabry@mi*.co*
Cc: cavers@ge*.co*, techdiver@terra.net

  Dittttner - the fuse is in the light circuit or in the feed to it? I think
you 
have this fucked up, and the fuse is in line with the relay. Now I don't know 
anything about Japanese cars, since, being an American, I have a Dodge, a Ford, 
and a Chevy, but then you had an Aquazepp up until you bought an American 
scooter, and and American light, and neither one of these has any of this 
silliness.- G

On Wed, 16 Oct 1996, Dittner@ao*.co* wrote:
>In a message dated 96-10-15 19:50:05 EDT, gmiiii@in*.co* writes:
>
><< 
> I work for an auto company, and I can tell you that we don't put a fuse 
> in line with the headlights.  It is a federal requirement, I believe, 
> that forbids a fuse in that particular circuit.  It is considered to 
> critical (the headlights) to chance nuisance fuse blowing.  There is a 
> piece of wire called a "fusable link" that will burn open before battery 
> damage is done and before a fire can start.  I would say that a cave 
> diver's light is MORE critical than an auto's headlights.
> -----
>    Dave, could you please send this the rocket scientists at dive rite? I 
> realize they say they know everything about  cave diving, despite hard
>evidence 
> to the contrary, but maybe they will listen to you. Square , fused lights,
>what 
> a concept!
>  >>
>
>Dave 
>  I don't know what rinky dink auto company you work for, but the one I work
>for has fuses in the headlight circuit, always has, and always will. The
>reason most cars have a fuse in any circuit is to prevent something from
>shorting out, building up heat in the wires and <surprise> catching fire!!!
>For what its worth a fusible link is just what it says, a "fuse", get it? If
>the circuit has too little resistence (ie a short) than the fuse or fusible
>link heats up first and melts to prevent the electical system from having an
>experience on the order of the china syndrome. 
>        
>                   I am in no way endorsing having a fuse in a cave light,
>quite to the contrary. I support the KISS principle on light systems. The
>fuse is one more faliure point that none of us need. Besides if your light
>catches on fire it won't burn for very long <G>. The light is a very simple
>cicuit, in fact it is just about the most basic DC circuit around if you
>remove the switch. Battery wire load wire battery. There is no need for a
>fuse in this design for this application, if there were there would be fuses
>in flash lights. Have you ever seen a flash light with a fuse? 
>
>    Also I have never heard of any goverment regulation on where not to put
>fuses on cars, I was under the impression that some EE was paid alot of money
>to design safe electrical systems for the cars. Not some know nothing
>goverment bureaucrat. 
> 
>
>Steven M Dittner  
>
>
>
>     
>
>

George M. Irvine III
DIR WKPP
1400 SE 11 ST Ft Lauderdale, FL 33316
954-493-6655 FAX 6698
Email gmiiii@in*.co*

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