Thread: Any idea what gauge these are?

Hello all,

Any idea what gauge these aluminum main wires feeding the main panel are?

They are in a 150 amp box with 150 amp main breaker.

Thank you!

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The minimum size to properly serve a 150 amp service would be 2/0 AL.

They look like 1/2" to me ...

Seriously I think Jim has the best answer . I'm not real sure what the HI's use to determine a wire size if they can't see the awg on the outer covering. Is there any particular reason you suspect the wire size being incorrect...?

Originally Posted by Roger Frazee

They look like 1/2" to me ...

Seriously I think Jim has the best answer . I'm not real sure what the HI's use to determine a wire size if they can't see the awg on the outer covering. Is there any particular reason you suspect the wire size being incorrect...?

Hello,

I go by what size they appear to be. To me they look like they could be 1/0.

I should get some of the sizes I'm not as familiar with to compare. I checked with a sparky several month ago but he never got back to me.

Thank you all!

completely impossible to tell the awg of a electrical conductor in a picture.
Unless it is a close up and actually shows the awg size printing on the cable, other then that it is a 100% total guess

Originally Posted by ken horak

completely impossible to tell the awg of a electrical conductor in a picture.
Unless it is a close up and actually shows the awg size printing on the cable, other then that it is a 100% total guess

No awg on the wire. I was hoping a sparky would be able to compare the main feed wires in the pic to the branch wires and give me an educated guess. It was worth a try.

Thank you all