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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.

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1answer
25 views

Electrical power to a detached shop, 60 amp panel, 80 feet of wire, what size wire do I need?

I am running power through a conduit to a detached shop, 80 feet of wire, a 60 amp panel. What size and type of wire do I need?
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0answers
28 views

What are the minimum insulation code requirements for a steel arch building (Quonset hut) used as a residence?

I'm interested in building a steel Quonset hut home in central Texas. I've done a fair amount of research on what's involved, but I'm stuck on insulation. The IECC defines minimum insulation ...
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1answer
73 views

“Reportable” electrical issues in commonwealth countries

I have a friend in New Zealand who said he hired an electrician to come and do some minor work and while at this he found an unused electrical installation that he said was "reportable" and had to be ...
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1answer
74 views

What does NEC require for strapping down conduit and wire here?

Below is a picture of the current conduit and wire setup for my new underground service into my house with generator automatic transfer switch and manual transfer switch to allow me to switch to an ...
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1answer
46 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 ...
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1answer
27 views

How to interpret UL listing for NM Clamps stating diameter?

Most NM electrical clamps specifically list the wire combinations they allow, but others such as halex 90515 simply list a bundle diameter range (.835"-1.520") Does that mean that I can use as many ...
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0answers
85 views

Are receptacles installed upside down? [duplicate]

This is something that I have always wondered about. In ICI you often and almost exclusively see receptacles ground up. As the story goes it's to stop objects from sliding down an contacting the live ...
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0answers
19 views

How close to the top of a structural stud can I drill?

I'm in California. I have a 4x4 structural post jack stud and a corresponding king stud 2x4. I would like to bore a 1/2" hole as close to the top as possible through both the jack and king. I know ...
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3answers
5k views

Why do single electrical receptacles exist?

Given that the following are true. They are the same size. They take the same amount of work to install. Doubles are twice as useful. Double adapters are a thing. Why do single electrical ...
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4answers
242 views

How do I carry electrical power across a pond?

Suppose I need to run power to an outbuilding. The line will run underground. Between the supply and outbuilding is a long, wide pond. Going around the pond isn't really feasible. This is not a ...
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2answers
35 views

Will I have a code problem attaching a 1.5“ grease interceptor to a 4” drain pipe?

I want to install a grease interceptor in my house. The problem is that it will not fit under the sink, so I plan to put it in the basement. The problem is that the sink, laundry and dishwasher all ...
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1answer
65 views

Does Chicago building code allow open ceiling joists in a finished basement? [closed]

I'm finishing the basement of a triplex condo in Chicago (townhouse style with a shared entry/common space with one unit). The developer didn't consider a future finished basement when it was it was ...
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3answers
74 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 ...
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1answer
25 views

Basement egress question

I'm considering remodeling one side of my basement, adding a new bedroom. I've been researching egress codes and it's not entirely clear to to me if my basement meets the egress code now, or if it ...
1
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1answer
34 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
38 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 ...
2
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1answer
25 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
44 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
78 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
56 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
43 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
42 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
450 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
39 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
105 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
1k 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
194 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
126 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
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1answer
230 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 ...
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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
380 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
57 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
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2answers
274 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
38 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
67 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
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 ...
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2answers
117 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
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 ...
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1answer
95 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
116 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
119 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
98 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
65 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
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. ...
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1answer
43 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
97 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
49 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
87 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, ...