On Tue, 29 Jul 2003 20:25:34 -0400, "Greg Moore"
wrote:

A resistor?
In other words the world could save a ton of coin but just putting a couple
of hundred fuses in various locations on their circuit boards in place of
carbon or wire wound resistors??

Come on Terry, if a fuse acts as a resistor it is either grossly under sized
(where of course it would blow) or the connections were made in a brutally
poor fashion.

When anything acts as a resistor, that is causes a voltage drop across it,
it produces heat, if the fuse is not properly installed, or the holder too
small for the amp rating, then that portion will get hot. If the fuse
itself got hot, it will blow, this is what it is intended to do. When it is
sized to run properly, it doesn't get hot, it just waits until there is a
gross overload in the system then fries..

Greg Moore

Sorry to disagree, Greg, but every component in an electrical circuit
causes resistance, wire included. A fuse is *absolutely* a resistor,
with a predetermined point of resistance, designed to "blow"
at a specified current flow. A fuse will "get warm" at currents
approaching it's rating.

noah

"Terry Spragg" wrote in message
...
I don't think you need a fuse for your trolling motor. It would
be essentially a resistor in series with your battery, and will
waste power. If you wind up rowing the last 100 yards or so to
get home, blame the fuse with confidence.

If you absolutely must have a 32 amp fuse, just wire up a 20, a
10 and a 2 amp fuse all in parallel. It'll work like the hard to
find value and you can use a cheaper muktifuse fuse holder strip.
Use all the same types, ie fast blow. Voltage shouldn't matter,
12 volt rating or up is OK.

After it blows, you will want a spare set, or a jumper.

I tested a combination of a 10 and a 5 to win a 10 dollar bet, 35
years ago. None of the other techs in the section could believe
it. A current limited power supply sat there at 15 amps for half
an hour, and when overloaded, both fuses blew simultaneously
after about 5 minutes at somewhere around 17 or 18 amps.


Fuses get a little warm at full load.

Terry K

Dean wrote:

On Mon, 28 Jul 2003 22:43:03 -0400, Frank Ciuca
wrote:

Well,
good luck trying to find a fuse holder that big, short of those
expensive circuit breakers you see at boat places.

Go to a car audio place. They'd be happy to hook you up with a 50-100
amp inline fuse...

-Dean
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