On 1/21/2019 2:12 PM, Lee Hart via EV wrote:
Wire of any kind or size is not an adequate substitute for a fuse.
Most fuses *are* a piece of wire of adequate size. :-) The trick is in
the choice of wire, and in how it is packaged.
IIRC I've seen "fusible links" on PCBs. They're a short section of
copper trace that is much narrower than the rest of the trace. My
understanding is that they're used for an extra level of protection or
where the designer thinks they're really clever. For all modern PCB
materials it's not *too* unsafe because they aren't (supposed to be)
flammable.
-
Martin K
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