"scrapwood" wrote in message
...
I have a question that I can't seem to find an answer to.

The task is adding a new sub-panel in an outbuilding. I understand that
new sub-panels now require a 4-wire feeder line, however this feeder will
be coming from the service disconnect. Specifically, it will be coming
from a small lug box on the side of the service disconnect; because this
is how the existing outbuildings are being fed.

So, my quesiton is: Is the fourth wire required in this situation, coming
off the disconnect. If it is required, what is it connected to??

Thanks in advance for any advice!
scrapwood.

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I'm not completely sure I understand your situation, however, if this feeder
to the outbuilding is connected to the "load" side of the service
disconnect, it will require four wires for a 120/240 volt feeder. Two hot
legs, one neutral, and one ground. You may have to drive additional ground
rods at the outbuilding as well