All Questions
Tagged with junction-box code-compliance
24
questions
2
votes
1
answer
67
views
What does NEC 2023 300.14 say about junctions with a dimension > 8"?
NEC 2023 300.14 states:
300.14 Length of Free Conductors at Outlets, Junctions, and Switch Points. At least 150 mm (6 in.) of free conductor, measured from the point in the box where it emerges from ...
- 699
0
votes
0
answers
40
views
When an electric oven junction box needs to be relocated can a whip be run from the old box under US NEC 2014?
Our double wall oven went kaput and had to be replaced. Discovered today that the new oven and the old oven (same manufacturer) want the junction box in different locations.
Is it code-compliant (NEC ...
- 1,870
0
votes
2
answers
104
views
Junction box cover required for a non-light ceiling device, and if yes, which one?
I am installing one of these infrared heating panels hardwired on my ceiling.
My plan is to put a junction box into the ceiling (same size as a ceiling light), located underneath the panel. The wire ...
- 1,531
2
votes
1
answer
142
views
Why are the box fill on Carlon boxes inconsistent/wrong?
This is a side question to Box fill calculations for a light switch in a Carlon old work box because I realized what is written on the Carlon old work boxes is possibly wrong or at least inconsistent.
...
- 1,531
0
votes
2
answers
303
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Box fill calculations for a light switch in a Carlon old work box
I thought I got the box fill calculations right but there must be an issue, still. Because, assuming my calculations are correct, no single box on the market would be large enough for a simple light ...
- 1,531
1
vote
2
answers
542
views
50 Amp plug but 30 amp breaker
I have a plasma cutter which can have 35 amps of 220 draw. The factory plug is NEMA rated for 50 amps, 220V single phase. My circuit is rated for 30 amps. I never intend to go above 30 amps when ...
- 11
1
vote
0
answers
218
views
Can I put a metal junction box on the side of a joist and run a cable across the face to the other side?
I would like to install a junction box with two incoming circuits via FMC, one outgoing FMC (clothes dryer) and one outgoing as NM-B (washer).
The junction box should go onto the ceiling of an ...
- 1,531
4
votes
5
answers
10k
views
Does NEC require junction boxes to be accessible without tools?
I’ve seen a few posts here – including one on a question I asked yesterday – that say junction boxes and the like need to be accessible without tools. The “without tools” requirement is clear in the ...
- 370
9
votes
3
answers
2k
views
Covering a former service panel turned junction box
This is in Colorado, United States.
Having some remodeling ongoing, I've had a contractor upgrade my existing electrical service panel, a 100-A Cutler-Hammer, with a new Square D 200-A panel on the ...
- 93
0
votes
0
answers
102
views
Can I put return hot wire from the switch in different color (red for example)
I am trying to install a new light spot in my basement with its own switch. So I understand the whole thing with black-white-copper wire color, so I only need to make another junction box, pull white ...
- 1
12
votes
7
answers
6k
views
Outlet screwed directly into stud
I was replacing old outlet in my house and came across an outlet that is screwed directly into the studs. Also the stud and the junction box were cut to fit the outlet. The new outlet is too big to ...
- 131
9
votes
3
answers
4k
views
Are "terminal block" style junction boxes allowed in the US?
In the UK it seems pretty common to see junction boxes with built-in screw terminals that are used only for splicing wires from 2 or more cables together.
Typical example:
(source)
Sample wiring ...
- 5,605
2
votes
1
answer
2k
views
OK to attach a metal electric junction box and armored cable (MC) to underside of subfloor in basement?
Is it OK to attach a metal electric junction box and armored cable (MC) to underside of the subfloor in a basement with an exposed ceiling? Or does it have to be attached to the side of the joists in ...
- 31
0
votes
3
answers
43k
views
Can I use 14 gauge wire on a 20 AMP electrical circuit? [duplicate]
Running 12-2 Romex cable from the electrical panel to a J-box located in attic. J-box will connect two GFCI outlets and extend a 14-2 cable to the ceiling light fixture box, where other 14-2 cable ...
- 117
2
votes
1
answer
5k
views
Can I install a device transformer in a junction box to keep it behind the wall surface?
I'm in Oregon, USA, and trying to figure out a code-compliant way of hiding a wall wart (AC/DC transformer) behind a small device (about 3"x3"; if it matters, the specific device is a smart garage ...
- 123