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Questions tagged [code-compliance]

For questions relating to compliance with laws and ordinances of federal, state/province and local jurisdictions. Questions should also be tagged with the specific area of construction involved.

0
votes
2answers
660 views

Why can't I (or: shouldn't I) run a power cord through a wall?

I would like to wall-mount my TV and have the wall be as clean as possible. I found this box and my idea was to mount this on the back side of that same wall , then run the power cable (and other ...
0
votes
0answers
218 views

Is it code-legal to backfeed both legs of a 240V panel from a 120V portable generator?

My question is very similar to this one (Can I plug a 120 volt generator into a 240 transfer switch with a modified cord/connector?), but I'd like to know whether DDS's answer is code-legal under the ...
2
votes
1answer
368 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 ...
10
votes
1answer
5k views

Is this wiring safe and is it according to code?

A single 12-3 cable was run to a double switch to control individual lights. The white is used as a hot, is this wiring correct/per NEC code?
5
votes
3answers
1k views

How can I frame around a service panel in the corner of the room and maintain clearance?

I'm refinishing my basement (1952 CMU masonry duplex) and need help figuring out how to frame around the electrical box that was replaced before the we put up the insulation. Unfortunately, the panel'...
1
vote
0answers
82 views

Can I fish Romex cable through concealed part of basement ceiling in Canada?

I am running two 2-wire and one 3-wire Romex cables from the panel in the basement to another part of the basement. For most of the run I have access to the ceiling joists, but I need to cross a 2.5 ...
3
votes
2answers
386 views

Relabeling 6-AWG Wire

I'm pulling 2 hots, 1 neutral and 1 ground through conduit to a subpanel and I was wondering if it's possible to use the same color wire and just relabel the endings. I was thinking of using 6 AWG ...
1
vote
0answers
40 views

unique ? about venting tankless water header

I am installing a tankless water heater at the house. My question is unique because I can not find a reference anywhere in the code and the installation manual about where to place my exhaust vent. I ...
0
votes
1answer
109 views

At what height should underground electrical conduit enter the structure?

When installing an underground electrical line from the house to the garage,how high up off the ground do the access holes that go into the house & garage need to be? The purpose of this ...
9
votes
4answers
2k views

Do the quick connectors in my new bathroom fan need to be in a junction box?

I recently replaced a bathroom extractor fan. The new model uses "quick connect" electrical connectors, where I stick the house wiring into this little plastic device, and apparently that's all! The ...
1
vote
2answers
157 views

Can I install a new dishwasher or are there code changes

I’m getting a new dishwasher with the intention of directly replacing my existing one from 15+ years ago. However I’m seeing conflicting descriptions of what is up to code, so I’m hoping someone can ...
1
vote
1answer
62 views

What kind of roof flashing is this and is it up to code?

This is in NJ. Roof was recently done and I've never seen this anywhere else. Looks like aluminum screwed in on both sides and the front. It's a very steep pitch. Either 10/12 or 12/12. Any idea what ...
1
vote
1answer
102 views

I'm wondering if these two things were allowed by the electrical Code in 1981 in California

My wife an I bought a house built in 1981 located in Lake County California. I've been switching out receptacles and switches and found some "interesting" wiring. Now, these all look like "as built" ...
0
votes
3answers
126 views

Garage remodel: can I leave garage door in and put an insulated wall in front?

doing a garage remodel and wondering how best to keep the garage door on facade and still be able to have A/C in the garage? I live in hot and humid south Texas. Is this a ridiculous solution to ...
0
votes
0answers
242 views

Can I put in a vented bathroom fan in my condo

I just purchased a condo in Myrtle Beach, SC - it is the first time I have owned a condo versus a house. While exploring, I found that the bathroom fans don't vent outside, they just circulate the air ...
1
vote
1answer
100 views

What needs to be done to protect existing 12/2 cable in a stud wall being converted to a mass wall?

I'm working on plans to convert three bays of a 2x4 stud wall with drywall into a mass wall by adding material to the cavity. The material will be something like sand/clay/gravel (to be determined ...
0
votes
1answer
102 views

Run conduit from exterior sconce

We have a sconce on the outside of our brick house on a covered patio currently. I would like to run conduit from it to allow us to place an exterior fan on the same covered porch. My questions: 1) ...
1
vote
0answers
56 views

Are these bends in the tub drain going to be an issue?

Im getting ready to run the drain for my basement bathroom but I'm concerned that I have too many turns in the tub drain. I had to start in the wrong direction in order to pick up a wall for a vent. ...
0
votes
1answer
46 views

What is required clearance from mechanical exhaust to garage door?

I'm looking to add a new tankless water heater, which allows for pvc exhaust. In California, USA, I think clearance requirements for a door is four feet horizontally or one foot vertically. Does this ...
0
votes
1answer
99 views

Some odd wiring in my breaker box. Is this up to code?

I'm poking around in my breaker box and I notice a white wire screwed into the ground bus. Tracing it back, both bare and white are on the ground bus and the black is screwed into a breaker. Is this ...
0
votes
1answer
54 views

Is there a building code for shower tile? (CA)

The folks at Lowe's told me not to place tile on top of tile, but it seems like the shower in the home I just bought has 2 layers of tiles. Is there a code for that? Or just a "suggestion" not to have ...
0
votes
1answer
107 views

What is the stainless steel baseboard in a walk-in cooler/freezer? [closed]

Trying to identify this base molding that I want to match in a walk-in cooler at a supermarket. It is missing from a few sections of the cooler and needs to be installed. Is this anything special, ...
0
votes
1answer
191 views

How can I mount a one gang box to a pipe?

I would like to mount a single gang box to a pipe and stay code compliant. I have a 1-1/2" pipe (but that can be changed), and I would like to have an outlet on the side of the pipe for mounting a ...
2
votes
1answer
65 views

NEC 210.70 and old wall sconces

I'm planning a diy rewiring of my 1914 2 story. All the upstairs bedrooms (3) have wall sconces with small switches in the fixtures. These sconces are the only light fixtures in the room. The ...
1
vote
2answers
157 views

Staying electric code compliant while cleaning up in-wall network box

Below is a pic of the in-wall network box in my new home - it is a 42" On-Q metal box, with an existing power outlet inside. Not shown are the bundle of cat5e cables and network and phone switches I ...
6
votes
2answers
664 views

Code: How can a transfer switch not switch neutrals?

I'm looking at this Reliance Controls transfer switch. I certainly won't buy it and don't recommend one, but the huge hank of wires going from switch to panel only has one neutral wire in it. How ...
0
votes
1answer
83 views

Are louvered bedroom doors allowed by code?

I'd like to build new rail and stile type interior bedroom doors with slats installed in the panel openings. This would be for improved air flow. This story on ABC ("Closing your bedroom door at night ...
1
vote
3answers
234 views

Ganged Circuit Breaker has strange ganging configuration. 40-[30-30]-40

I have a scenario where the Circuit Breakers for a Dryer and a Range are intertwined in the CB panel. In the picture below 17 and 20 are ganged together with that wild ganging clip. 18 and 19 both ...
0
votes
2answers
390 views

Required protection for copper gas line passing through metal opening in fireplace casing (Alberta, Canada)

Background context: As executor, I'm in the process of selling my late father's house. I have an offer pending; following the home inspection, the prospective buyers have submitted a list of ...
1
vote
0answers
50 views

Waterproofing outdoor wire splices and receptacles

It seems that the NEC requires wire splices to be UL486D listed when used in outdoor (generally damp or wet) locations, similar to the requirement for THWN or other wet-rated wiring. Why are special ...
1
vote
1answer
342 views

Is it within code to run ent conduit into a junction box on the exterior of the home?

I am in the construction process for a new home. I asked the Low Voltage Contractor to run conduit to about 13 places inside the house. In addition to that I asked for a run to the exterior of the ...
0
votes
1answer
193 views

Diagonal Bracing Requirements

I'm currently designing a deck to replace an existing deck on my home. The new deck is subject to different codes than when the original was built. The city provides a link to a design guide which I ...
4
votes
2answers
1k views

Do I need to protect all wiring in an attic when adding a permanent ladder?

I am wanting to add a permanent attic ladder to create storage space in a big attic. There is already exposed wiring in a few places in the attic. If I add a permanent ladder, does that then mean that ...
2
votes
1answer
87 views

If I replace my main panel, will I need to fit AFCIs?

Code is NEC 2017. My existing main panel has plenty of ampacity but few spaces, and thus, is totally full. I have several potential paths for an upgrade. One involves fitting a subpanel and ...
1
vote
3answers
78 views

Can I splice the common wire of two different circuits in the same junction?

I have a single 4way run that shares a 2 gang box with another circuit. Both circuits run off of the same sub-panel. Is phase an issue here? I can't seem to find anything that indicates whether or ...
1
vote
1answer
116 views

Is any depth change allowed on electrical panel wall?

I know the NEC requires clear space in front of a breaker panel. What depth of wall change would violate this? My basement, where the panel is, has a 6" jut where the block wall becomes timber. So ...
0
votes
1answer
82 views

Are these joists to code?

I am resurfacing my deck and have applied for a county permit to do the work (therefore it will be inspected). I have a protrusion at my house to support a chimney. The size of the protrusion is ...
1
vote
2answers
64 views

Am I allowed to put a wall standard within 18" of a fire sprinkler?

From my understanding, in San Francisco, CA, there is a code requirement that you cannot obstruct an area within 18 inches of a fire sprinkler. What is meant by obstruction? Say, you installed one of ...
1
vote
2answers
100 views

Does the NEC regulate data cable bury depth?

Technically my jurisdiction follows the 2016 California Electric Code, but it's mostly just the 2016 NEC. Table 300.5 lists bury depths for various areas and wiring methods. Do these apply to data ...
1
vote
1answer
76 views

How do I couple IMC underground?

The title, more or less, sums it up. I plan to bury some THHN/THWN-2 feeders, and my jurisdiction allows a 6" bury depth if I use IMC or RMC. I plan to use IMC, which comes with both a male and female ...
0
votes
0answers
90 views

What is the correct type of anchor bolt for attaching a sill plate to a slab once the concrete is dry?

If you need to install additional anchor bolts after the concrete has cured (and thus can no longer install traditional J bolts), what is the correct type of fastener that can be installed into dry ...
0
votes
4answers
125 views

Gas-fired water heater safe to have in living area of home?

A un-licensed renovation on our house was performed about 15 years ago, which turned a former garage into a 200 sq ft den directly attached to the rest of the house. In this den is a gas-fired water ...
1
vote
3answers
336 views

Is a Garage considered a 'Dwelling' for standalone electric service?

I just wrapped up adding new overhead 100 amp service for my parent's garage outside Chicago. My Mom is a retired ceramics teacher and wanted a 30A two phase kiln and/or welder in there and the ...
0
votes
1answer
41 views

Can I carve a portion out of the side of a floor joist to accommodate a Fernco Clamp

I am tying a pvc sanitary tee into a 3" copper DWV line which runs along a floor joist (2x12) in the ceiling of my basement. I plan on using a fernco shielded coupler 3007-33 (https://www.fernco.com/...
1
vote
1answer
345 views

Do you need a special type of screw to mount a NEMA 3R box?

I need to mount a NEMA 3R Meter base and panel on a temp pole. There are screw knockouts on the back of the panels, but is there something that needs to be done to stop water from coming in the screw ...
1
vote
1answer
72 views

Suggestion installing receptacles on basement wall?

I plan to install four 20 amp duplex receptacles on a basement concrete wall in area marked by red rectangle (see picture). Along the top of wall is a plumbing drain pipe. Suggestions for installing ...
2
votes
3answers
220 views

Suggestions for properly mounting 4' shop light

Suggestions for installing two 4 ft LED flush mount shop lights in unfinished basement ceiling perpendicular to floor joists (see pictures)? Specifically, what ceiling box to use and would you mount ...
2
votes
4answers
4k views

Space requirements for first subpanel and wiring preference

I would like to install two subpanels and my main panel is full of breakers. Would it be better to feed both subpanels directly from main or have 1st subpanel off main and 2nd subpanel off 1st ...
3
votes
2answers
75 views

Upgrading electrical when re-doing siding & code question

I'm thinking about re-siding a house within a next year or two. It is 2-unit house, 3 floors. The third floor outlets do not have ground. Can electric wires be ran under the siding? Is this common and/...
2
votes
1answer
153 views

Bring portable generator in through automatic transfer switch

I currently have a portable generator, an inlet, and an interlock on the main panel to backfeed the panel. I am moving over to an automatic transfer switch with a standby generator. However, as a ...