It looks 10-ish. If it is 10g, you can do 30A on it, but, for any significant length 8g us much safer.

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Thank you Sir. Upon more digging I'm thinking 6awg. Any thoughts?

It depends on the reference method,is it clipped direct, depth of burial, is it in contact with thermal insulation etc, what is it your trying to do?

My advice would be to get an electrician, overload protection maybe OK on a 30A but what about fault protection you need to make sure it'll trip in time in the event of a fault

I think 20 amp is a better solution at the moment. Cheers