Re: Fuses for 12v system
- From: Prepair Ltd <prepair@xxxxxxxxxxxxx>
- Date: Wed, 07 Dec 2005 12:04:50 +0000
On Wed, 07 Dec 2005 10:59:05 +0000, Steve Atty <nospam@xxxxxxxxxx>
wrote:
>Arcing? Don't think I've ever seen a cartridge fuse arc? Or are you
>talking about trip style fuses?
Oh they do, promise! :-))
One of the ratings for fuses and carriers is the overall maximum
voltage, and that is related to clearances between chassis and the
fuse and terminals, and also the ability of the fuse wire to
melt/vapourise safely without causing a sustainable arc through
ionised metal inside the cartridge body.
Sand-filled fuses are probably safest, but they tend to be only
available in the smaller sizes and ratings.
It is a surprisingly complex subject.
Peter
--
Peter A Forbes
Prepair Ltd, Luton, UK
prepair@xxxxxxxxxxxxx
http://www.prepair.co.uk
.
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