Why is the grounding and neutral bus bar connected in the sub panel?
I had an electrician come in and install a new sub panel in my house and wire up my kitchen. When he finished, I took it from there. Now that I have the rest of the house wired, its time to connect it all to the sub panel. Both the neutral bus bar and the ground bus bar (2 separate buses) seem to be connected by a copper rod going across the sub panel. What's confusing me is that I've noticed the electrician didn't keep the ground and neutral wires separate when he hooked them up to the buses. They are all mixed together. Most of the grounds and the neutrals are both on the neutral bus bar. When an inspector came in to inspect some framing, he pointed out that they were mixed and that won't pass. When I asked the electrician, he said that they both get connected anyway, so it doesn't matter. Now I find myself in a pickle. Is there anyone out there that can help me out? Thanks