Quote:
Originally Posted by oil pan 4
I have an unused length of 6/3 with an 8 gauge ground SO cable.
But I think I really only need 6/3 or 6/2 with 8 or 10 gauge ground. This charger should only need 2 hots and a ground.
It's an setec. I'm pretty sure I linked them some where here on this thread.
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10 kw at 240V is about 40 amps, right? #6 is more than enough .. as you already knew. I had to look it up on a chart.
You are not using the neutral, so 6/2 would be fine as well. Ground sizing versus conductor sizing ... is more your area than mine. If you are drawing 40A then I think #10 is OK for the ground, even at full current. Again, by my chart.
I'm not conversant enough with our electrical code to quote what the ground cable should be. That said, I observe that many of our ground cables are significantly smaller than the continuous-current carrying conductors.