At 12:01 AM 7/5/2015, Don Hanson wrote:
>Those fuses are copper, the fuse block is some other metal.

Contacts could be spring brass or beryllium copper, fuse material is
whatever the element is,  often stamped zinc I think.  Which is
highly active electrolytically.  Yes, I didn't mention that but it's
the major reason a Euro fuse will corrode sitting right next to an
AGC or SFE fuse that's fine.  Unfortunately the ATO fuses are a step
backwards in that regard, as their spade terminals are simply
extensions of the element and can present the same problems.  They
do, however, have a lot more contact area.

>   They are
>exposed to the atmosphere also....Electrolysis, waiting to happen, Two
>dissimilar metal with a current running through and atmosphere with some
>moisture in the air.........You should see what happens when there's a
>similar set-up near or in Seawater....

I have.  :-(

Yrs,
d