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67 455 Bird ragtop
10-14-2015, 03:52 AM
I'm getting ready to start wiring up my gauges. I was curious what is the proper size of wire to use. I'm thinking 14ga is about right. Not a lot of current involved. Dash lights will be all LEDs also.

Thoughts ???

130fe
10-14-2015, 04:28 AM
I have used 18 gauge wire without any issue with gauges (like autometer and Dakota Digital). Never had any issues.

67 455 Bird ragtop
10-14-2015, 04:43 AM
Thanks. And since gauges and the bulbs inside them don't draw a lot of current I assume it's ok to run separate power and lighting circuits in series.

parsonsj
10-14-2015, 04:47 AM
I'd use 22g. You're drawing less than 3A, over a distance less than a meter, and 5% voltage loss is not an issue. 24g is actually big enough, so go to 22g for some engineering margin.

http://www.solar-wind.co.uk/cable-sizing-DC-cables.html

130fe
10-14-2015, 04:52 AM
Yeah, I ran all of the Ign and ground wires in series except for the turn signal bulbs. One time when I ran the turn signal grounds in series with the others, I would get a "windshield wiper" indication in the other gauges when the turn signals were on. I just ran those grounds to another location.

67 455 Bird ragtop
10-14-2015, 07:06 AM
Thanks guys!!! :)