BILLYL wrote:Thank you - much clearer.
One final question - The neutral wires need to "FLOAT" I assume that I should insulate the bus from the box? Is a bus like that available - if not what type of insulating material should I use?
Thanks
Bill
your assumption is correct. the neutral bus should not be attached to the panel through any conductive parts.
usually, in a sub panel the neutral bus should already be "floating". only in a main panel, or meter panel will the neutral be bonded to the box.
of course, check to make sure.
if you have a multimeter, which i believe you should if you are undertaking an electrical project of this magnitude, you can use the continuity or Ohms feature of the meter to determine if the neutral is floating. simply put one test lead on the nuetral bus and the other to the panel chassis. you should get no reading.
hope this helps.