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  1. General Electrical Discussion
    Is it possible for there to be no ground wire in an under ground PVC feeder conduit? Its 480v 3 wire. Doing demo and noticed this between two buildings in an industrial compound (all on one property). Is this an ungrounded or impedance grounded system? Please be gentle I have limited experience...
  2. General Electrical Discussion
    I have worked on machinery from Europe that has 2-wire grounded 240V in the panel. This is just like the 2-wire grounded 120V we use in the U.S. In other words, you have 2 wires coming off the secondary side of a single phase transformer at a potential of 240 V. One leg is grounded, giving you a...
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