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Old 05-24-2011, 03:30 PM   #1
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Phase out.


Why would a phase go out on a three phase electrical panel?

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Old 05-24-2011, 04:15 PM   #2
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Phase out.


Could be a utility company problem or a problem in the facilities panel.

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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 05-24-2011, 04:34 PM   #3
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Phase out.


If its not a faulty switch / fuse or a loose connection,
Then it could be a blown fuse only on one phase,
Possibly the phases are not balanced and there
is too much om one phase.
There will be a fuse for each of the three phases.
call poco !
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