[Milsurplus] BC-375 HV fuses needed

[Richard Brunner]

Yes!  I forgot that - dc ratings of fuses are MUCH less than the ac
ratings, if indeed a fuse has a dc rating.  That's why they call them ac
fuses...  AC currents have naturally occurring current zeros which help
quite a bit in interruption.

Richard, AA1P

On Mon, 2011-09-12 at 19:38 -0400, WA5CAB at cs.com wrote:
> I started to query that as well.  In addition to the voltage rating, it 
> matters whether the fuse is breaking AC or DC.  The Picofuse is rated 125 
> volts, which is almost certainly 125 VAC.  In the BD-77 you're dealing with 
> around 1000 VDC.
> 
> In a message dated 09/12/2011 18:29:29 PM Central Daylight Time, 
> garypewitt at centurytel.net writes: 
> > 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.
> > 
> 
> Robert & Susan Downs - Houston
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