We always run a 2/0 ground to the router top and exothermically weld it to a bus bar and ground everything up there to the same bus bar.
The thought is that after a while the connection between the sections deteriorates. I honestly have no imperial evidence to support the practice. I don't see how, or any benefit, to outing surge arrestors every 75 feet. In fact, if you reread the R56 I'll bet it is talking about grounding the shield of coax, not actually a surge arrestor. On Jun 3, 2015 5:24 PM, "Edward Brooks" <broo...@mt.net> wrote: > Here goes... > We have a new 118' Super Titan Max tower that has been grounded per > manufacturers recommendations. Each leg is physically bonded (not > exothermically) to a 10' ground rod, all ground rods are then connected to > each other in a ring. The equipment cabinet is bonded to an 8' ground rod > and tied into the meter base grounding as well. The two ground rings are > then bonded to each other in 2 separate places. > With that said our issue has not been with the grounding, but with > the dissipation of static at the height of the antennas. We currently have > had the worst problems with the 3 Cyclone 2.4 antennas which are currently > located on masts at the top of the tower. We have also had issues with a > couple of the 5.7 Cyclones located below the top of the tower, but not as > frequently. The center-line of the 2.4 APs is 120' AGL, the height of the > tower is 118' AGL. We currently have WB-GigE-APC surge arrestors located > in the cabinet which is located 10 ft from the base of the tower. > After doing some research through various Cambium manuals and the > Motorola R56 manual, I have some idea what our issue is, but would like to > bounce those ideas off the community. My thought is that we neglected to > put surge arrestors at 50' to 75' intervals (as recommended by the Motorola > R56 manual) and 1 at the top for use in thunderstorm areas. Also we may > need to lower the APs to a minimum of 2ft below the top of the tower (per > the Cambium manuals for various antenna types). > Any suggestions or comments would be appreciated. What have you done > to mitigate this problem? Etc... > > Thanks, > -Ed > -- > Edward Brooks > > *Outside Plant Manager The Montana Internet Corporation* > 406-443-3347 X506 > > > ------------------------------ > [image: Avast logo] <https://www.avast.com/antivirus> > > This email has been checked for viruses by Avast antivirus software. > www.avast.com <https://www.avast.com/antivirus> > >
