Re: Can a 1W resistor handle 50W for 7msec?

On 27 Nov 2003 22:16:26 GMT, [EMAIL PROTECTED] (Avery Fineman) wrote:

> Conventional fuses CAN be a danger in "normal" applications if
>   mounted horizontally.  I've come across three situations where
>   horizontally-mounted fuses rated greater than 0.5 Amperes did
>   NOT fully melt-and-separate the fusible link inside.  In each case
>   there was sufficient voltage across the gap to arc over and continue
>   current flow.  Mounting the fuse vertically insures that a melted
>   fusible link separate enough for HV B+ not to arc over.

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A better approach than mounting the fuse vertically is to obtain one
which is filled with arc-quenching powder.  They are designed just for
this situation.

--
Bill, W6WRT