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Combining two 30-amp lines?

Discussion in 'Electronic Repair' started by [email protected], Mar 15, 2005.

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  1. Guest

    If I want to run an appliance that needs 50 amps, is there any problem
    with combining two 30-amp circuits of approximately the same length, as
    long as the part that carries the full current is using properly-sized
    cable? It seems like the circuit would have a 60 amp capacity.

    Thanks in advance.
     
  2. NSM

    NSM Guest

    No it won't. You have to de-rate the cables some if they are close, in a
    conduit, or, IIRC, run in parallel. The code book will tell you by how much.

    N
     
  3. worldcitizen

    worldcitizen Guest

    I suppose you could use two wires instead of one to increase your safe
    amqerage on your wires but I'm pretty sure you would still need to use
    only ONE 50 amp breaker in order to be good with wiring codes and
    safety.
     
  4. Jerry G.

    Jerry G. Guest

    What you want to do is against the electrical code in most places. What you
    need to do is to change the breaker to a 50 or 60 amps, and if the wiring is
    not rated for this type of capacity, you will have to run in new wires.

    You should be checking in your local area about the electrical codes, and
    comply. If you do not comply, your home or business insurance (depending on
    your location), will most likely be void, if they find out that the
    standards are not right, and there is a hazard.

    --

    Jerry G.
    ======


    If I want to run an appliance that needs 50 amps, is there any problem
    with combining two 30-amp circuits of approximately the same length, as
    long as the part that carries the full current is using properly-sized
    cable? It seems like the circuit would have a 60 amp capacity.

    Thanks in advance.
     
  5. Guest

    To all,

    After considering the possible problems, I've decided to bite the
    bullet and keep it standard and simple and go with one 50 amp path.
    Thanks.
     
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