On 01/04/2016 09:59 PM, Lee Hart wrote:
Jay Summet via EV wrote:
Has anybody ever melted the plastic and holder of an Automotive ATC
fuse, without blowing the fuse itself? Impressively melted photos here:
http://www.summet.com/blog/2016/01/04/melted-fuse-leg/
Two possibilities occur to me:
1. Fuseholder not rated for the current. 30 amps is pretty high for a
simple quick-connect type terminal. You normally don't use them above 15
amps unless they are specially made for more, or have good cooling.
There's a good reason that high-current fuseholders are made of
bakelite, ceramic, or some other non-meltable non-combustible material.
Low-current ones get made out of cheaper meltable plastics.
I believe the fuse holder and fuse came as a single package from
Autozone, so they SHOULD both be rated at the 30 amp fuse rate.....but I
agree it doesn’t exactly look like an especially high quality/current
fuse-holder.
I've ordered a replacement that is slightly "beefer" looking but still
out of plastic. 8 GA wire and 40 amp fuse in a package with the holder.
http://www.ebay.com/itm/391180385602
(But I'll also be driving to AutoZone and/or Napa tomorrow to see what
is available locally....)
2. Fake fuse. Some outfits sell really cheap no-name fuses that are
basically just any old piece of scrap metal in a fuseholder. Who knows
at what current it will blow (or *if* it will blow at all).
It was an Autozone part...
Jay
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