Grounding a 3 meter service

[richwaskowitz]

Can anyone clarify a few things here?

In the case of a 200 amp drop to a three meter installation for three apartments, each with a 100 amp panel, how is the grounding properly accomplished?

Part One - In the attached illustration (albeit crude) a #4 is run from the waterpiping to one of the panels and the #6 ground rod connection is made there too. The other two panels each get a #6 tapped off the #4 GEC only, with no direct secondary GEC connection. Is this correct?

Part Two - With the three neutral bars essentially tied together with the ground connections, do not all the neutral paths from each panel to their meters end up being one big parallel circuit with currents circulating all over the place?

 

[richwaskowitz]

Re: Grounding a 3 meter service

It would appear that my attempt to attach the sketch has failed miserably.

 

[charlie b]

Re: Grounding a 3 meter service

You need to store the file where it can be reached by an internet address. The forum cannot get into your C: drive to find the image. I don't know how to do that myself, but there may be a member willing to take an email version from you and post the image on your behalf. If so, they should contact you by Private Message, and exchange email addresses.