Bosch Automotive Handbook says half a volt total drop on supply side acceptable for most 12V automotive circuits, assuming ground through chassis. Littelfuse specifies their ATO fuses to carry 110% rated load for minimum 100 hours, to blow at 135% in maximum 600 seconds (minimum 3/4 second), at 160% in maximum 50 seconds, at 200% in maximum 5 seconds. At 600% in maximum 100 or 150 (35 and 40A) millisecs. I think VAG were wrongheadedly old-fashioned in leaving unfused wires all about. Judging by the '09 Passat I just looked at, they've caught up to the Japanese and the rest of the world in fusing everything that comes off the battery barring the starter cable. Yrs, d
On Mon, Aug 7, 2017 at 10:29 PM, Neil N <musomuso@gmail.com> wrote: > Steve: No. No motor or anything like that. Thanks. > > Thanks Dennis. Ok, I see what I did wrong. Wire charts I looked at > were for 12 Volts (vs 13.8 or 14). The marine application wire size > calculator I saw could be set to a 10% voltage drop for "non critical" > loads so on the wire size calculator I actually used, (here): > |
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