Wire sizing and conduit sizing
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Senior Electrical & Lighting Expert
May 1, 2012, 03:40 AM
Minimum size of Schedule 40 PVC conduit would be 1-1/2", assuming XHHW insulation on the 2- #4/0 Al.
Depending on length, it may be wise to upsize the conduit.
May I ask why only two conductors?
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