[Milsurplus] BC-375 HV fuses needed

[Richard Brunner]

A 120 volt fuse isn't going to interrupt a high voltage circuit, but it
will continue to arc, introducing voltage drop to the circuit fault and
maybe limit damage.  I just run a wire through the HV fuse and go with
it.  The cosmetics are fine.  Who really needs a HV fuse anyway.

BTW, a fine copper wire as a fuse element is not a good idea.  Because
of the high melting temperature of copper its going to run pretty hot
and maybe melt the solder connections at the ends.  It might work for
low voltage circuits anyway.  High voltage fuses have a series of
fusable elements, (that's why they're long) and are packed in sand or
borax.

Richard, AA1P


On Mon, 2011-09-12 at 18:28 -0500, Gary Pewitt wrote:
> I'm not trying to be a wise a** but would that work at high voltage?  I 
> thought high voltage fuses were -large- to prevent arc over when they 
> blow.  Some are even packed with sand for that purpose.  Please correct 
> me if I'm wrong.  It won't be the first time.    73  Gary  N9ZSV
> 
> 
> 
> On 9/12/2011 6:23 AM, David Stinson wrote:
> > I have a couple of these HV F-12 fuses I put in a vice
> > and ran a long drill bit through the center of them.
> > I inserted one of the Littlefuse Pico-fuses like this:
> > http://www.talonix.com/shop/item.aspx?itemid=8421
> > with the wire pigtails and soldered to the end bells.
> > Works good.  They cost about a buck apiece.
> > ______________________________________________________________