Jerry Simon Posted January 3, 2013 Report Share Posted January 3, 2013 AC wiring ran from inside the panelboard, back through the raceway that contains the service entrance cables, and out to the condenser through the meterbox. I didn't think lower branch circuit wires could run in the main raceway. Is this kosher? (And if not, rationale?) Thanks! Link to comment Share on other sites More sharing options...
Kyle Kubs Posted January 3, 2013 Report Share Posted January 3, 2013 I seriously doubt the UL listing of the meter socket enclosure included circuit wire. If it is just a meter enclosure. Likely the only thing prohibiting it in service entrance raceway would be conduit fill limitations. Link to comment Share on other sites More sharing options...
Jim Katen Posted January 3, 2013 Report Share Posted January 3, 2013 AC wiring ran from inside the panelboard, back through the raceway that contains the service entrance cables, and out to the condenser through the meterbox. I didn't think lower branch circuit wires could run in the main raceway. Is this kosher? (And if not, rationale?) Thanks! Not allowed per 230.7, which, succinctly, says, "Conductors other than service conductors shall not be installed in the same service raceway or service cable." There are exceptions for grounding electrode conductors and bonding jumpers as well as "load management control conductors" that have overcurrent protection. The rational is that the service conductors have no overcurrent protection and if some strange circumstance occured that allowed them to directly energize the branch circuit then it, too, would have no overcurrent protection. Link to comment Share on other sites More sharing options...
Jerry Simon Posted January 3, 2013 Author Report Share Posted January 3, 2013 AC wiring ran from inside the panelboard, back through the raceway that contains the service entrance cables, and out to the condenser through the meterbox. I didn't think lower branch circuit wires could run in the main raceway. Is this kosher? (And if not, rationale?) Thanks! Not allowed per 230.7, which, succinctly, says, "Conductors other than service conductors shall not be installed in the same service raceway or service cable." There are exceptions for grounding electrode conductors and bonding jumpers as well as "load management control conductors" that have overcurrent protection. The rational is that the service conductors have no overcurrent protection and if some strange circumstance occured that allowed them to directly energize the branch circuit then it, too, would have no overcurrent protection. TY, James (Myke) Link to comment Share on other sites More sharing options...
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