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.

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2answers
77 views

Can I use leaded glass for tall window in stairwell?

I'm in California. My house, built in 79, has a tall 3x9 stained glass window in a stairwell, starting 10" from the floor. I had a window contractor out to bid replacement windows and he told me that ...
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2answers
54 views

Can I back feed my panel with a lower amp breaker than the service inlet?

I believe I can run my whole house off my current generator 3500W/4000Max if I don't use the electric stove and oven. The generator subpanel has power meters for both legs, which, even when my oil ...
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1answer
43 views

Can two kitchen disposals share a circuit?

I'm in California. Current code, AFAICT, requires a dedicated circuit for dishwasher. That means that, by default, the disposal (being under sink) would also have its own circuit. In my kitchen ...
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2answers
60 views

Do I need a certificate of occupancy for each building on a single property?

If I have 2 buildings located on one property do I need a certificate of occupancy for each building or does 1 certificate cover all buildings?
2
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1answer
107 views

Must a flush-mount panel actually be flush?

I'm in California. I have a flush mount electrical panel. I'm looking to install a second layer of drywall over the existing for acoustic reasons. This will result in the panel being inset by 5/8-...
6
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2answers
2k views

Considerations for hardwiring electronics project in wall

What things will I need to consider for hardwiring a planned electronics project into the wall? The plan is a DIY smart thermostat. An LCD touchscreen panel will be flush with the wall. Attached to ...
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0answers
67 views

48AMP kiln on 60 AMP breaker *must be* direct wired in Canada?

I am trying to find out what part of the Canadian electrical code requires that the 48AMP kiln, on a 60AMP breaker requires that it must be direct wired, instead of using the NEMA 6-50 receptacle ...
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0answers
62 views

Is CSST piping and water piping in an inaccessible crawl space against code?

The CSST line that feeds our upstairs dryer with gas, the water pipes for the washing machine and some electrical wires run through an inaccessible crawlspace in the basement. When I went to turn the ...
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4answers
1k views

What NEC section, if any, covers an owner wiring their own home?

A question answered by Karl Katzke said: you are allowed to pull an electrical permit on your OWN residence Can anyone tell me if there is language in the NEC to this effect and if so what is the ...
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1answer
45 views

Double earth on metal case light fitting Qld?

Good morning, We have purchased a recently renovated home, and all of the pendant lights have metal casings around where the actual bulb goes in. The electrician we are using to rewire the house has ...
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2answers
920 views

Are Sonoff smart switches actually UL listed?

Sonoff is a system that comes up often on this stack. However, I notice it seems to be of unusually low cost, not available in retail shops, sold widely in the "dodgy side of the internet" (eBay, ...
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1answer
47 views

Does a ground need to be install in a 2' x 4' outside junction box?

i have a bunch of outdoors 2' x 4' open bottom concrete junction boxes. the question is, does each box need to have a ground rod installed and bonded to the ground wire? if so can someone please point ...
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3answers
118 views

How do by-room electrical code requirements work for a house with open plan or nontraditional rooms?

The electrical code imposes a variety of requirements for different rooms of the house, in a way that implies that the house is divided up into non-overlapping, specific-purpose rooms at construction/...
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3answers
2k views

How can I properly remove (not cover) an unused receptacle?

First of all, if this is a duplicate question please point me in the right direction as I couldn't find one with my specific situation. I am relocating a bathroom shower to the opposite side of the ...
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2answers
2k 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 ...
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0answers
295 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 ...
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1answer
583 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
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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?
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3answers
2k 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'...
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0answers
112 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 ...
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2answers
544 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 ...
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0answers
42 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 ...
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1answer
196 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 ...
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4answers
3k 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 ...
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2answers
174 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 ...
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1answer
65 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 ...
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1answer
105 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" ...
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3answers
146 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 ...
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0answers
277 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 ...
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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 ...
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1answer
169 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) ...
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0answers
59 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. ...
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1answer
47 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 ...
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1answer
102 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 ...
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1answer
65 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 ...
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1answer
134 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
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1answer
324 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
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1answer
78 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 ...
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2answers
182 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 ...
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2answers
863 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 ...
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1answer
96 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 ...
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3answers
316 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 ...
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2answers
538 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 ...
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0answers
52 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 ...
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1answer
377 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 ...
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1answer
249 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 ...
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2answers
2k 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
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1answer
95 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 ...
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3answers
81 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 ...
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1answer
150 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 ...