All Questions
Tagged with junction-box grounding
25
questions
3
votes
3
answers
260
views
NEC Code requirements for location of neutral and ground connections
I have one 20amp circuit that runs from the panel box to an accessible junction box in my attic via 12/2 romex. This junction box also contains the 12/2 romex switch leg runs of all six lighting ...
- 31
0
votes
1
answer
121
views
Why did a wire short to the metal junction box without tripping the breaker?
I opened up a junction box to reconfigure two switches.
I turned the breaker off and unscrewed one switch and all of its wires.
The hot, neutral and ground were separated so they wouldn't touch.
I ...
- 5,138
5
votes
3
answers
3k
views
Does every single ground wire in a box have to connect to every other ground wire within the confines of that same box on one branch circuit?
I have a 3-gang plastic box with six conductors that enter the box; three line-side, three load-side, and they pass through the three switches in pairs of two.
The load-side wires are all on the same ...
- 370
12
votes
2
answers
2k
views
Does NEC allow a metal box to carry the ground connection between separate conductors?
I found this box:
You can see that most of the conductors have their grounds crimped together in the deep part of the box.
A box extension was added to this at some point, so it is rather deep, but ...
- 370
1
vote
1
answer
105
views
Junction box from main to subpanel - what to do?
I am doing a DIY 400A service upgrade and I would like to get some vetting on my work before the utility connects it and the city inspects it. The meter/main combo is outside behind this wall of the ...
- 953
0
votes
1
answer
93
views
Proper grounding of old fuse panel now turned J-Box
I am working on my old house from the early 1900s. It has 100A service, a 6x15A FUSE panel that was turned into a sub panel powered by 2x 20A circuits from a small "newer" 100A breaker panel....
2
votes
1
answer
1k
views
Add Junction Box for Double Oven
California house built in the 1960s. Here's the existing junction box for the ovens. Ovens are busted and needed to be replaced
Right away, I am confused:
Red looks like 8 AWG
Black, White look ...
- 145
5
votes
1
answer
425
views
NEC 250.148: Can I splice separate circuit grounding wires to a junction box's grouding wire, resulting in a single grounding wire exiting the box?
Working on my first electrical project (laundry room conversion), so all of this is new to me.
I'm splicing one 20A and one 30A circuit within a steel junction box to transfer from NM-B to THWN-2 for ...
- 67
0
votes
1
answer
92
views
Grounding Frigidaire 27 inch double wall oven (junction box)
Installing Frigidaire 27 inch double wall oven that has a whip with insulated ground. Ran new 8/3 Romex from breaker box to oven that has bare ground.
Frigidaire instructions say to connect both ...
- 1
2
votes
1
answer
3k
views
This 1950s metal box was ungrounded so I added a ground line. Do I need that if the wires are GFCI protected?
I have replaced all old outlets with existing wiring (no ground) on 20 amp circuits in 1950 home with new tamper resistant 20 amp decora outlets.
Before doing this I had an electrician trace for ...
- 41
3
votes
1
answer
2k
views
Can I install a ground bar in an 8x8 junction box for splicing cables?
I had a sub panel put in a few years ago but recently upgraded our panel. My county inspector said I could splice the short wires to get them inside the panel.
I bought a box and I have 8 circuits ...
- 35
4
votes
3
answers
4k
views
Properly grounding junction box for conduit transition
I just want to confirm I have my wiring down correctly. I live in the US (upstate NY) which is under NEC regulation; no local code regulations added on top of NEC.
I am installing a new outlet (120V/...
- 324
4
votes
2
answers
1k
views
What is an acceptable way to ground receptacles branched off of an old 2-wire electrical circuit?
I have a house built in the '50s, and some of the runs are done with what appear to be original 12/2 cloth-sheathed wire without a grounding conductor (just hot and neutral). I'm looking to install ...
- 205
4
votes
1
answer
514
views
Found neutral and ground feed twisted together in a junction box. Safe to fix?
I recently found that the neutral bar and ground bar in my home's subpanel have no resistance (0 ohm) between them (when the neutral feed to the subpanel is disconnected). I root caused the symptom to ...
- 263
1
vote
2
answers
6k
views
Metal Junction Box screwed to wood - same screw used for grounding
My brother has a metal pancake box directly screwed into a 2x4. That same screw used to fasten the box is also being used to ground the box.
i.e metal pancake box screwed into the wood also has the ...
- 436