Raffi thanks for the update , basically we have a system that has a number of external poles, ( very good lightening conductors ) which have not been grounded.. hence the question about the external AP's, some of the external AP's are fed by copper , which we are putting some sort of "surge suppressor on " again this needs to be earthed, to ground plate or spike..
I have had nothing to do with this installation , and I am very surprised , that these masts were put up without reference to any local building regs or onsite supervision.