Set-up: New 100amp electric service, with a new 100amp rated feeder to a sub-panel indoors. Neutral and grounds seperated in sub-panel. Wiring to range and dryer was not replaced, and both consist of copper se cable, with 2 insulated conductors, and an uninsulated conductor wrapped around the insulated two. Electrician landed these to the neutral bus in the sub-panel, but they are still bare, and can touch the enclosure.

What are my options? Tape up bare conductor, and leave on neutral bus? Leave them bare and land them on the grounding bus? Require complete replacement of cable to a 4-wire cable?

Code sections, please.

Thanks

Rick Miell