Those are fine in a detached structure with a separate ground - either a rod or plate in the ground.
Cannot do that with a panel that is bonded from the main service.:no:
Cannot do that with a panel that is bonded from the main service.:no:
That is not true in the US.Those are fine in a detached structure with a separate ground - either a rod or plate in the ground.
Cannot do that with a panel that is bonded from the main service.:no:
What exactly do you mean? If four wires (hot+hot+neutral+ground) were run to the structure, they could not be bonded in the sub because the ground could carry current. Is that what you mean?Cannot do that with a panel that is bonded from the main service.:no:
I had the understanding the CEC was getting closer to the NEC with the changes in 2012....That is not true in the US.
If you run a bonding wire(ground) to the different structure, you cannot ground the neutral at the subpanel.What exactly do you mean? If four wires (hot+hot+neutral+ground) were run to the structure, they could not be bonded in the sub because the ground could carry current. Is that what you mean?
Or does this mean that any instance where neutral and ground are bonded in the main panel, there can never be a bond in a sub panel?
Thanks again.
In a detached building we are required to run H-H-N-G and utilize a ground rod (I believe it's now two rods.)I had the understanding the CEC was getting closer to the NEC with the changes in 2012....
We can either ground a separate building using a feeder from the main with a separate ground plate or rod OR run the ground from the main service without a separate plate or rod. As long as all the grounding procedures are followed.
We've generally gone from the two ground rods 2m apart to a plate. Too hard to get the rods deep enough to meet the requirements in our province, anyway. But you ALSO bring a ground from the main?In a detached building we are required to run H-H-N-G and utilize a ground rod (I believe it's now two rods.)
As long as the grounding rods are deep enough to satisfy your local authority for grounding rods/plates/etc, and your boxes are bonded properly, sounds good to me. You are just needing to get a potential fault current to the earth around your structure and bring it up to the same potential without hurting anyone.So, there are a couple of structures on my property (a barn & workshop) that have subpanels from the main back at the house; no grounding conductors were run from the main to these subs (only 2 hots and a neutral), and they are not in EMT, grounding rods were driven and neutrals/grounds are bonded at these subpanels. Is there any risk of shock or other fault problems?