On Sat, Oct 26, 2019 at 6:51 PM Gene Heskett <[email protected]> wrote:
> I wound up getting some 18 gauge from amazon, the next size down was 28 > gauge. Even at .5 amps, that seemed a bit small. But by the time its > strung thru all the cable chain, estimated at 17-18 feet, I'd druther be > big enough than to find I've only 8 volts at the 12 volt motor. #28 has 10 times the resistance per foot of #18 and this has 10 times the resistance of #8. It is not a coincidence. A difference in 10 AWG is a factor of 10 cross-section area. If you had used #28 wire on a 20 foot run the voltage drop (over the 40 foot 2-way length) would have been 1.3 volts at 0.5 amps. But now with #18 the drop is 0.13 volts. -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
