Re: Whats in this old fuse?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve" <steve-at-g8cyerichmond.freeserve.co.uk> 

Two substances used at one time were finely powdered silica (silicon
dioxide), and sodium hydrogen carbonate (bicarbonate of soda or sodium
bicarbonate), I have also heard of - but not come across- zinc oxide.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, April 05, 2004 12:34 AM
Subject: Whats in this old fuse?


 > Original poster: CTCDW-at-aol-dot-com
 >
 > Hi Folks,
 >
 > I know it's not quite tesla related, but i was wondering what a white
 > powder might be in an old cartridge fuse. The fuse is thick paper with the
 > metal end caps, but what is this stuff inside?
 >
 > I do have a question related to my pole tranny though...One of my
 > insulators is leaking oil out the top.. It is wicking up through the
rolled
 > paper inside. If I were to lower the oil level inside to be just below the
 > insulators, does anyone think that might cause problems? the tranny proper
 > would still be under oil.
 >
 > Thanks!
 >
 > Chris W
 >
 >