[Amps] 4 wire 240VAC service? What to do now?

Doug Renwick ve5ra at sasktel.net
Mon Apr 4 16:23:22 PDT 2011


Is this OK?  I ran 3 wires (120v only) to a sub panel in building #2.  I
installed a ground rod at building #2 and grounded the sub panel.  I will
have to check to see if the neutral is connected to the sub panel ground.

Doug

>-----Original Message-----
>
>Jim,
>Your method #1:
>
>This method was allowed several years ago but NEC no longer allows this.
You
>must now run 4 wires to building #2 and NOT bond neutral and ground in
>building #2. that panel is treated as a sub panel and it also requires a
>ground rod in addition to the ground wire from the main panel.
>
>Under the old method as you describe neutral and ground would be bonded at
>the sub panel.
>
>Your Method #2:
>
>You say to run two hots and neutral. You didn't mention a ground wire. Did
>you mean to say that 4 wires would be run?
>If so then ok. However a local ground rod is STILL required at the panel in
>the 2nd building. The only time a ground rod is not required at a sub panel
>is when the sub panel is located in the same building as the main panel.
>
>73
>Gary  K4FMX



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