[Amps] dumb query about fuses (maybe!)

[Carl]

Ive seen 120V 15A fuses used on 240V open up from normal use heat Van.

I dont know if the 240V ceramic versions use different internal 
materials or construction but they appear to not suffer from heat and of 
course they dont shatter when severly stressed.

Carl
KM1H


----- Original Message ----- 
From: "Van K7VS" <wa7fab at cdsnet.net>
To: <amps at contesting.com>
Sent: Tuesday, May 12, 2009 4:05 PM
Subject: [Amps] dumb query about fuses (maybe!)


>I know ohms law so don't need the math.  Just a very specific question
> regarding fuses used in an amplifier on the AC side.
>
> My amp requires 15 amp fuses if using 125V and requires 10 amp fuses 
> for
> 220V operation.
>
> Does the voltage of the fuse make any difference??  i.e  What happens 
> if I
> use a 15 amp fuse rated at 125V rather than what they ask for?  (10 
> amp at
> 240V)....does the voltage rating make a difference??  Or just the 
> current
> rating of the fuse?
>
> And finally, is a ceramic better than a glass fuse for some reason?
>
> I know this may sound pretty dumb to some but missed the the class on 
> fuses.
>
> Thanks much.  Van, K7VS
>
>
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