Can I add a new ground bar on relocated panel?
In preparation for a basement finishing, I had my licensed electrician move my panel away from the service entrance. To meet code (distance from entrance to shutoff), he had to install a main shutoff outside, then run the cable to my relocated box (and which also has it's own main shutoff).
Last night, when preparing to run two new circuits, I found that he ran all of the grounds in the relocated box to a single grounding bar on the left. I want to add circuits on the right, and don't want to run the wires all the way down, over, up to the left grounding bar.
Can I add a new grounding bar on the right? There are pre-drilled holes for it. Do I need to connect to the existng ground bar, or will the screws attached to the metal case accomplish that?