ground wire and box pigtail same size?

n175h

Can I use a #12awg to ground my air conditioner j-box and connect it to the #10 wire that grounds my air conditioner? My AC has a #10 ground wire coming through the box, but the steel j-box that feeds it is not grounded. I want to bond the ground to the box at the ground screw that is provided. It's not a question of whether it needs it, (it does), it is whether I can drop down a wire size on the pigtail.

David

k_buz

Technically...no

__________________

electures

Has to be same size.

__________________
All responses based on the 2011 NEC.
If you live in New Jersey click
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. All other states click
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.
Please check with local, county and state officials as laws may vary.
Sizing motors
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. Online motor calculator
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. Online calculators
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

bobelectric

You can't downsize the ground until over a 30 amp circuit.

n175h

Thanks guys,

Same size it will be