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Old 04-10-2013, 02:21 PM   #1
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What gauge wire is this?


The attached photos show the wire coming in at my home's service entrance. I'm trying to determine what wire size it is....The close up shows 2 AL / 600volt. I presume the AL is aluminum but not sure if this is 2/0 aluminum or #2 aluminum (makes an impact on how difficult a service change is going to be). Unfortunately, there is no writing visible on the hots other than the year - 1975. The breaker on the right is a 100amp breaker.

-thanks
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Old 04-10-2013, 02:33 PM   #2
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What gauge wire is this?


The wire marking is clear, #2. If it was 2/0 it would say it. #2 is just over 1/4" in diameter, 2/0 would be just about 1/3" in diameter.

#2 AL is appropriate for a 100 amp service.

Yes, it is aluminum.


Last edited by AandPDan; 04-10-2013 at 02:34 PM. Reason: confirm aluminum
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Old 04-10-2013, 02:45 PM   #3
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What gauge wire is this?


Thanks, guess I was hoping it was thicker. Is 100amp service the max for this size wire?
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Old 04-10-2013, 02:48 PM   #4
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What gauge wire is this?


Quote:
Originally Posted by dfelb8 View Post
Is 100amp service the max for this size wire?
Yes, for a dwelling. Other uses it's less.
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Old 04-10-2013, 11:15 PM   #5
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What gauge wire is this?


Why ya have to open that box cover below the meter socket and that is typically unfused and that is POCO lateral conductors.

That is good for 100 amp service.

Merci,
Marc
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Old 04-11-2013, 06:37 AM   #6
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What gauge wire is this?


That wire is a #2. It is connected to the neutral. Are those others slightly larger? We commonly use a #1 for the hots on a 100 Amp feeder.

In any case, you are most likely limited to a 100 Amp service using this equipment/wires.
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Old 04-12-2013, 01:10 AM   #7
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What gauge wire is this?


Normally 100 amp service would have a #2 THHN set of wires. #2 is smaller than the #1 copper.
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Old 04-12-2013, 07:22 AM   #8
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What gauge wire is this?


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Normally 100 amp service would have a #2 THHN set of wires. #2 is smaller than the #1 copper.
The OP is dealing with aluminum conductors here. Copper is a completely different animal.
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Old 04-12-2013, 09:41 AM   #9
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What gauge wire is this?


That looks like the feed from the poco.
The wires under the other cover are the ones you need to be concerned with.
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Old 04-12-2013, 12:25 PM   #10
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What gauge wire is this?


The wire from the breaker panel on the right to the main breaker panel inside the garage is the same wire type and gauge...so, I'm stuck with 100amp scenario until I replace the wire and upgrade the service...
-Thanks

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