I have always read these sections are requiring the communications system to use the power system grounding electrode, but these are very poorly worded sections of code. In the first part is says you must ues the building electrical system grounding electrode, but then it tells you how to bond a seperate communications grounding elctrode to the electrical system grounding electrode. 800.40(A)(4) seams to say that you can only use a communications grounding electrode if the communications system entrance is more than 20' from the power system grounding electrode system.
We need some proposals to fix this for the 2005 code.
Don
