mstrlucky74
Senior Member
- Location
- NJ
If you have mc cable entering and leaving a 4" j-box box in a ceiling is the ground wire not spliced together but rather terminate to a ground screw in the box?
Both.... Connected together and bonded to the box.
So a wire nut is used? Sorry there was a little debate today. Someone saying that they are only bonded to the box and no wire connector was needed.....
Would it suffice to bond both the incoming and out going grounds to the box ? You could save one wire nut at the expense of one ground screw and a ground clip. Spend a dollar to save a quarter.
If you have mc cable entering and leaving a 4" j-box box in a ceiling is the ground wire not spliced together but rather terminate to a ground screw in the box?
If you had two MC cables and two ground screws you could eliminate the splice. The box would also require two 10-32 threaded holes. Since you mentioned a JB in the ceiling you would not need a tail for a device presumably because there wouldn't be one.
Thanks guys my question is when you have multiple grounds coming together in a 4" junction box(without a device) how do you commonly attach them? Spliced, wire connection connector?
Spliced together with an approved "for ground connections" wire nut with a pigtail to connect to the box for bonding purposes.
I couldnt use a machine screw & nut through a hole in the box?:roll:
If you have mc cable entering and leaving a 4" j-box box in a ceiling is the ground wire not spliced together but rather terminate to a ground screw in the box?
you going to have to cut the wire to terminate the MC cable. When you do you are going to have to splice the ground and bond the box. Are you really trying to figure out how not to spend .17 on a wire nut or is this a mental exercise? The jacket for mc is not considered suitable for a bond, AC cable has an equipment grounding conductor integrated into its sheath. You might want to look up 250.118 and reevaluate materials.If you have mc cable entering and leaving a 4" j-box box in a ceiling is the ground wire not spliced together but rather terminate to a ground screw in the box?