It is good to keep in mind that a fuse provides full protection only to the conductors downstream of the fuse, i.e. between the fuse and the load. While we often thing we are protecting the wire between the fuse and the point of supply, it gives only limited protection in that portion of the circuit. Using a fuse to provide OVERLOAD protection is a bit different than provideing OVERCURRENT protection. Worst case scenario is a short circuit in the circut ahead of the fuse. The fuse of course provides no protection there. ( And that does happen ) "Where is all that smoke coming from??"
Wes AE6ZM & VE7ELE GROL/RADAR ARRL Technical Specialist Lincoln, CA CM98iv --- In Repeater-Builder@yahoogroups.com, "Paul Holm" <p...@...> wrote: > > Fuses protect wiring. > > Equipment should be fused to match the power handling level of the leads > that supply it. For a 100 watt mobile, I would choose 10ga wire (unless the > leads needed to be quite long) and fuse it at 30amps. > > > 73 Paul