We have a large, on-campus student housing property that is a single 4- story building separated into 4 building sections by firewalls. Each of the building sections has it's own electrical entrance and it's own grounding system. (they are not connected)
The low voltage systems (phone/video/data) are distributed from a main communications room on the 1st floor to 4 communications rooms on each floor (one in each building section)(for a total of 16).
Normally, in a building like this, the electrical entrance grounds are tied together, and we can connect the communications room grounding to the multipoint ground.
My question is, since all of the low voltage is distributed from a single point, how do I ground the rooms effectively and avoid any potentials?
The low voltage systems (phone/video/data) are distributed from a main communications room on the 1st floor to 4 communications rooms on each floor (one in each building section)(for a total of 16).
Normally, in a building like this, the electrical entrance grounds are tied together, and we can connect the communications room grounding to the multipoint ground.
My question is, since all of the low voltage is distributed from a single point, how do I ground the rooms effectively and avoid any potentials?