Ground bus bar will be installed in our MDF by electricians and will be tapping off of ground rod from adjacent building, will there be any issue with multiple grounds connected to our 2 post rack?

Hello,

As the title states, we will have electricians install a grounding bus bar in our MDF. It will be mounted on the wall. The equipment which is mounted on the rack are obtaining their ground from the PDU or UPS.

My concern is, if we wanted to run a dedicated ground wire for the 2 post rack to the grounding bus bar, would a ground loop of some sort occur? We want to ensure the rack has a good ground and would not like to rely on the rack mounted equipment. The ground bus bar will also be used for other equipment in the MDF.

Thank you.

Edit: Grammar correction.