The 2005 NEC requires the perimeter bond under "paved surfaces"...2005 680.26(C)(3) requires #8 grid in a 12x12inch network
The 2008 NEC requires the perimeter bond under "unpaved surfaces" as well as "paved surfaces"... 2008 680.26(B)(2)(b) requires a #8 single conductor as an alternate means...
For 2011, the code has gone back to the 2005 method with the requirement of the grid style perimeter bond...2011 680.26(B)(1)(b)(3)
Does anyone have the 2011 ROP with regard to the change back to the grid pattern?
