I want to pass electric current of 30 amps (12V) from a bolt. Which one would do better? also, what is the minimum thickness would do to prevent it from getting over heated??
Thanks
2007-12-26 13:17:43 · 3 answers · asked by boygenis 3 in Science & Mathematics ➔ Engineering
Checking the source below, it looks like "steel" has a conductivity of 46 vs 16 for "stainless steel". These are thermal conductivity numbers but actually they correlate very well to electrical conductivity in metals. The problem is that you can't use unplated steel or it will rust, which will reduce conductivity. Perhaps galvanized would work. You should consider brass or copper bolts, which would conduct much better than either of these steels.
2007-12-26 14:47:42 · answer #1 · answered by Engineer Dave 3 · 1⤊ 0⤋
hm it would depend on the nature of Chromium, cos stainless steel is coated with Chromium, how much Chromium can conduct electricity would affect the conductivity of Stain. steel. i think Chromium is a transition metal in the periodic table and those metals have pretty high conductivity.
2007-12-26 13:32:48 · answer #2 · answered by Funk-Ski Biznez Man 4 · 0⤊ 0⤋
You need to make a low resistance path
It's probably not the resistance of the bolt, but the resistance of the joint that matters.... use star washers that "bite|"
and a "cut" washer to take up creep and expansion
2007-12-26 14:34:26 · answer #3 · answered by Anonymous · 1⤊ 0⤋