I'm running some new MC cable into an older (1950's) metal electrical box that has AC cable (more commonly called "BX") in it. The box doesn't have a grounding screw to attach to, and none of the existing holes in it are tapped such that I can attach a grounding screw.
Is there any alternate NEC-compliant method to attach a ground to this box, or must I replace the box? I heard about grounding clips, but not sure if they're ok with the code.
Thanks
Theodore
Is there any alternate NEC-compliant method to attach a ground to this box, or must I replace the box? I heard about grounding clips, but not sure if they're ok with the code.
Thanks
Theodore