Im no expert here, but my initial thought is the wire going to the master bus is not big enough. The grand daddy of all tower grounding documents is the one from Motorola:
https://sites.auburn.edu/admin/facilities/spw-bid-calendar/11-150%20AU%20Regional%20Airport-Construct%20a%20Self-Supporting%20Radio%20Tower/Project%20Documents/1/Motorola_R56_2005_manual.pdf If that link does not work google "r56 grounding pdf” It’s a 10 meg file. The stuff you are looking for starts in Section 5.3 (around page 200). Justin --- Justin Wilson <[email protected]> http://www.mtin.net <http://www.mtin.net/> Managed Services – xISP Solutions – Data Centers http://www.thebrotherswisp.com <http://www.thebrotherswisp.com/> Podcast about xISP topics http://www.midwest-ix.com <http://www.midwest-ix.com/> Peering – Transit – Internet Exchange > On Aug 7, 2015, at 4:33 PM, Adam Moffett <[email protected]> wrote: > > The boys used one of these ground bus bars like you would find in an > electrical load center to connect a bunch of surge protectors to a master > ground bus at a tower site. > We're supposed to follow R56 at this site and I think they goofed. I can't > think of an honest reason why it wouldn't be a good ground, but I don't think > it's "by the book" because it can't fit the required #2 wire that's supposed > to go back to the MGB (they used #6). It also can't use the type of ground > terminals called for in the book. > > I hate to make them redo it, and at our own site I wouldn't cry about it, but > this landlord was clear that we have to stick with R56. I'm kind of hoping > one of you tell me it meets the requirements and not to worry about it. > > <idjifiig.png> >
