06/03/2026
Is this actually legal, or is my apprentice coworker just inventing a new grounding method?
He’s been landing multiple grounds under the device ground screw like this, and it doesn’t look right to me at all. From what I understand, terminals are only allowed to be used for the number and type of conductors they’re listed for — so unless that green screw is rated for multiple conductors, this isn’t acceptable.
Wouldn’t the proper way be to splice the grounds together and run a single pigtail to the device/box?
Looking for the actual code reference before I bring it up at work. NEC 110.14(A) / 250.148? What do you guys think?