From: kuhrick (kuhrick@comcast.net)
Date: Sat Dec 20 2003 - 22:58:20 PST
that small a fuse 2 amp cant be cheaper to make in 45 volt than
the 200+ volt
i think the 250 volt fuses would be as cheap in the amp range
ken
m886
At 08:52 PM 12/20/2003, LAWRENCE TIGHE wrote:
>I believe the voltage rating is in consideration of arcing. A fuse ampere
>rating is not related to the voltage...i.e., 2 amperes is 2 amperes. Seems
>I remember the voltage rating is that at which there will NOT be a sustained
>arc when the link breaks.
>
>If, for example, a 125 volt rated fuse is in a 500 volt circuit and the fuse
>blows, there is a possibility that the voltage across that fuse will arc
>from one end of the fuse to the other thus a fire possibility. Or, so I was
>told.
>
>In old trolley cars, the 100 volt light bulbs were hooked eight in series
>and they equaled the 800 volts of the trolley overhead. If one bulb burned
>out, that would put 800 volts DC across that bulb and it would explode and
>arc....but for an arc supressor across each bulb. Ain't much difference
>between a bulb and a fuse...it was explained to me.
>
>
>Lar
>
>
>
>
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