Nec table 250 122 relates the selection of size appropriate egc to the size of the over current device ahead of the conductor All tables on this site are based on the 11 national electric Table — Minimum Size Equipment Grounding Conductors for Grounding Raceway and Equipment In July, NFPA hosted an NEC Facebook Live event to discuss the "top17 NEC® Code Change to section (F)(2) for Multiconductor Cables
Ez Formula Guide
