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Old 06-23-2010, 04:22 PM   #1
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2/2 aluminum UF cable


What is max amp for a #2 Aluminum Underground cable (with no conduit) as a feeder line ?

I have had and received varying info and feedback about this.

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Old 06-23-2010, 07:45 PM   #2
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2/2 aluminum UF cable


Using the 60 degree column of Table 310.16, #2 AL is good for 75 amps, before any derating is applied, if needed.

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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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Old 06-23-2010, 07:54 PM   #3
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2/2 aluminum UF cable


Doesn't cable length possibly change ratings?
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Old 06-23-2010, 08:59 PM   #4
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2/2 aluminum UF cable


Circuit length may change the size conductors needed to compensate for voltage drop, but not ampacity.
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