mdshunk Senior Member Location Right here. Nov 7, 2006 #2 250.66(A) basically states that you can ignore table 250.66 (for sizes larger than #6) if you're connecting to a rod, pipe, or plate electrode. Even if you have a million amp service, the biggest you're required to run to a ground rod is #6.
250.66(A) basically states that you can ignore table 250.66 (for sizes larger than #6) if you're connecting to a rod, pipe, or plate electrode. Even if you have a million amp service, the biggest you're required to run to a ground rod is #6.
ibew441dc Senior Member Dec 10, 2006 #3 250.66 applies if you do not have 250.66(A),(B),or (C) possibilities. hope this helped Ibew441dc