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Date: Mon, 23 Sep 1996 11:41:00 -0400
From: "david (d.p.) pearson" <dpearson@no*.ca*>
To: techdiver@terra.net
Subject: Re: to fuse or not to fuse?
George

I am not sure I agree or disagree.  I would like to understand your reasons for
not putting fuses in lights.  I am in the process of building a light, and
this is a question that should be reconciled before I finish.

My thoughts in no particular order:

o   If the entire circuit is in a single container, there is no need
    for a fuse.  The bulb is the fuse in this case.

o   If an extremely large current is drawn from a lead-acid battery,
    the danger of explosion is very real.  In an umbilical lamp, the
    possibility of shorting the battery exists.  The risk is reduced
    by keeping the wire short and neat as demonstrated in your video.

o   The fuse need not be a cheezy "Little-Fuse" stuck in a holder
    with lousy springs to make contact.  The fuse could be a very
    high current fusable link soldered directly into the circuit.

o   The light should be considered life support equipment.  The
    fusing should be given the same treatment as burst disks; size
    them so they blow just before the tank/battery explodes.

ttfn
David Pearson
Nortel, Public Carrier Networks
Ottawa, Ontario, Canada
dpearson@no*.ca*

In message "to fuse or not to fuse?", you write:
> 
> 
>    Andy, please tell us who is the dumb fuck who built a light with a fuse in 
> it? This is the height of techno-weenery and stupidity spawned from no
practical 
> knowledge or understnading of this sport. Who is the genius?
> 

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