Normal
Re: Theater Lighting / Audio System HelpThere could be just one panel, which would then be the service panel, but it sounded from Marc's description as though one or more new subpanels were added as part of the lighting install and if so then neutral and ground should be bonded only at the main service panel and not at any subpanels. I've had enough experiences with Electicians stating that neutral is not bonded at subpanels, that two circuits are served off the same or different panels, that an isolated ground is maintained, that there are no shared neutrals, etc. only to find it to not be true to know that such things do happen and that you can invest a lot of time, energy and money trying to address issues with the electrical service that really need to be corrected anyways.
Re: Theater Lighting / Audio System Help
There could be just one panel, which would then be the service panel, but it sounded from Marc's description as though one or more new subpanels were added as part of the lighting install and if so then neutral and ground should be bonded only at the main service panel and not at any subpanels. I've had enough experiences with Electicians stating that neutral is not bonded at subpanels, that two circuits are served off the same or different panels, that an isolated ground is maintained, that there are no shared neutrals, etc. only to find it to not be true to know that such things do happen and that you can invest a lot of time, energy and money trying to address issues with the electrical service that really need to be corrected anyways.