Originally Posted by AndyD5
I just go with what I was taught and what makes sence too much protection is better than not enough. It may not be required but it surely doesn't hurt anything either. So I'm over cautious!
That is absolutely the wrong attitude to have when it comes to electrical work.
What makes "sense" and what may seem over cautious sometimes can be counterproductive.
Square is correct. GET A CODE BOOK. Know it. Then come back and give advice.
It is not a wise man who gives advice on such things merely according to "what he was taught" or "what I've always learned".
This is how misconceptions and incorrect practices get perpetuated.
You are correct. A circuit run with #10 should have a #10 ground. Same with #12 & #14. Larger than that is DIFFERENT.
See NEC Table 250.122 and get back to us.