the service is as such: residential 200A overhead, seu drop to meter pan, pvc nip to nema 3r breaker enc, 4 cond seu to main lug panel in house. there is a well with plastic piping into house, and since this is my first install where city water piping doesn't exist i'm not sure how to ground the system. I drove 2 g/r w/ the usual #6 but i'm don't think that is enough. Please shed some insite
Don, has this changed for 2002, I was taught that if a driven rod is your only GE then you size the GEC from the table. I thought you only used #6 if the rod was a supplemental electrode... guess I'm confused.
Re: Grounding w/o a water pipe#14688 09/28/0205:09 PM09/28/0205:09 PM
arseegee, No change in the code rule, however in the '96 and earlier codes this rule was Exception #1(a) to 250-94. The rod really isn't a very good electrode and it will never carry very much current into the earth. A #6 is more than enough copper to carry the current that the rod can put into the earth and that is why the rule exists. There is no electrical advantage to installing a larger GEC to the rod. Don
[This message has been edited by resqcapt19 (edited 09-28-2002).]
Re: Grounding w/o a water pipe#14689 09/29/0211:14 AM09/29/0211:14 AM