I have worked with many licensed contractors in California. I do the PLC programming and I always do a visual inspection of the panel before I start programming. I have always referred to NFPA 79 for machine wiring.
Previously contractors used wire ferrules on all wiring in the 24vdc control panel.
I’m currently tasked with working on a control panel by a licensed contractor in California (C-10)
This contractor has told me NEC code does not have any requirements for using wire ferrules.
Is this correct?