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.

Filter by
Sorted by
Tagged with
0
votes
1answer
48 views

Adding 240v (NEMA 14-50) outlet right behind breaker panel

The breaker panel is on the outside wall, right next to my garage. I want to install a 240v outlet right behind the panel, thru the wall. If i open the panel, there are those round metal covers that ...
4
votes
2answers
405 views

Can I install outlets in my window wells?

I'm helping my folks install battery-operated sump pumps in three window wells to deal with a persistent flooding problem. We're running a GFCI-protected circuit from a nearby sub-panel to each ...
3
votes
2answers
86 views

Is there a code-compliant way to label a wire where the conductors are not wired in the expected way?

This might be an X/Y problem, so if there is a better solution, I'm all ears. I have a 3-gang electrical box in my basement that is already overcrowded. It has The wire for the three-way light in the ...
2
votes
3answers
3k views

Do I have to connect the grounding electrode at a detached garage to the grounding electrode at the main structure?

Article 250.32(A) of the National Electrical Code, tells us that we need a grounding electrode at a detached garage. It also says that it has to be "installed in accordance with Part III of Article ...
0
votes
1answer
99 views

How critical is it to use the correct wire colors within the same electrical outlet?

I am replacing "razor only" receptacles to GFCI. The outlet contains a LINE cable (black, white, bare copper). The previous receptacle of course did not use three prongs, so the ground was just ...
5
votes
3answers
914 views

grounded outlets and code compliance

I live in a residential unit in Oakland, CA and I am curious what the rules are about grounded outlets. Is grounded power required? My outlets are 3-prong and an outlet tester reads that there is ...
2
votes
2answers
179 views

Do I need to use BX wire in my house?

I live in the Chicago, IL suburbs, and I've been told that I need BX wire to be up to code, both from a worker at Home Depot and from a friend who is an electrician. However, I have only used Romex ...
0
votes
1answer
34 views

Max sill height for windows as an escape and rescue in a group R-3 occupancy?

Don't have a IBC code book available, assuming it's answered in there. Google is giving me some confusing answers
2
votes
3answers
103 views

Legal requirements for generator installation?

I would like to have a standby generator installed for my house. Based on my own assessment of our electrical needs, along with my desire to have a slower-running generator to reduce noise, and my ...
1
vote
0answers
23 views

Canadian (Alberta) Residential Electrical Code

Is there a homeowners version of the current electrical code for residential wiring in Alberta available at no cost? I’m renovating my kitchen and would be helpful to know the many changes and ...
5
votes
2answers
107k views

What is code for installing a dishwasher in the U.S.?

I will be replacing my dishwasher and I am curious what is the current code for the wiring of the dishwasher.
0
votes
1answer
99 views

Electrical pipe heated by heating pipe - against the code?

Please see the picture below. The three pipes in the front are electrical (conduit). The big black pipe in the back is the heating pipe. I guess something went wrong when building the building and ...
2
votes
2answers
68 views

Why are shower drains 2“, but tub drains 1.5”?

In the US, code dictates that the drain (p-trap and arm) on a shower use 2" pipe, while on a tub you use 1.5" pipe. I understand that is code, but I am curious as to why it is the way it is. ...
0
votes
1answer
225 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 ...
2
votes
3answers
80 views

How to cut hole larger than 1/3 of joist?

I need to run a toilet drain (3”) through three joists (9 1/4”). Code states holes in joists can not exceed 1/3 the size of the joists. Catch is for 3” pipe I need a 3 5/8” hole — which is larger than ...
1
vote
1answer
78 views

Do two circuits on one receptacle require shared trip breakers?

In California I have two separate circuits powering a single a single receptacle (such as for a dishwasher and disposal). This is not a MWBC. Does current code require these circuits to be on shared ...
0
votes
2answers
52 views

What are the requirements for a bathtub or steam shower in a bedroom?

We live in a suburb of Minneapolis. Our master bedroom has a decent amount of unused space. My wife really wants a steam shower. Rather than remodeling an existing bathroom, I've started thinking ...
1
vote
0answers
32 views

Q couple questions on the CA Plumbing, Electrical Code RE: keep-out distances between gas, electric

General: Southern California area Residential Experience with HV and high pressure N2/CDA systems from my work, but not flammable high pressure gasses. Question 1: Is there a minimum distance ...
4
votes
2answers
106 views

Can NM cable be installed in a junction box mounted to a floor joist in an unfinished area?

I understand that NM cable can be run along and through floor joists in unfinished areas of basements. However, can the NM cable then be installed in a box mounted on the joist, perhaps for a light ...
0
votes
3answers
147 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
2answers
56 views

Stair Illumination: Location of light

Before I close this up, is this legit location for light at bottom of stairs? Yes, switch at top and bottom, and light at top as well. Through some quirk of symmetry, this can light (of 12 total), ...
2
votes
1answer
179 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 ...
0
votes
1answer
186 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) ...
3
votes
3answers
2k views

Splitting a 220v line into a 110v line and a 220v line?

This question reminded me that when we bought our house, I found the previous owner had taken the dryer's 220v circuit and continued half of it from the 220v outlet to make a 110v circuit for the rest ...
1
vote
2answers
78 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 ...
0
votes
1answer
42 views

In conduit with 75C wire, can I use #14 wire for 20A circuits?

I note that with 8 AWG wire... in NM-B (Romex) cable I can only get 40A: I am required to pull from the 60 degree C column of Table 310.15(B)(16). However, in conduit, with 75C wire (THHN) and ...
1
vote
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 ...
0
votes
1answer
59 views

ok to run PVC pipe behind gas meter?

I am considering installing a radon mitigation pipe system in my home, but the only area where I could reasonably have the pipe exit my home is crammed with all my other utilities. The best spot I've ...
0
votes
0answers
32 views

Can I place a slide-in gas range up against plywood sheathing?

I'll be putting a slide-in gas range up against a knee wall. However, I planned on bracing the knee wall with 3/4" plywood sheathing from the bottom plate up 30", where it would be completely covered ...
0
votes
0answers
45 views

Fuel gas CSST line allowed in plenum in Texas?

I recently visited a house. The host pointed out something interesting. The furnace AC combo is in an indoor closet and is vertical upflow and sits on top of a filter base that sits on top of the ...
2
votes
1answer
54 views

By how much can I trim back the connectors of 1.5" PVC fittings?

We're installing the drain plumbing for a newly installed tub, and the drain shoe overshoots the tub drain hole. The tub has been mortared in place and can no longer be moved: A joist limits how far ...
0
votes
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?
0
votes
1answer
115 views

How much weight/many people can my rooftop deck hold? 2“x12”x20' joists, 16“ on center, 2”x4" framing under [closed]

How much weight/ How many people can my rooftop deck hold? The joists are 2"x12" over 20ft, 16" on center The framing under the deck is typical 2"x4" framing (living space), on a concrete ...
1
vote
2answers
76 views

The structural integrity of a backyard structure

I need a shed, but I really don't want to put a standard-looking shed. I would like something that's pleasing to the eye and fits my property. In addition, I thought it would be cool to have a second ...
6
votes
2answers
909 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 ...
3
votes
1answer
225 views

What are the rules for making your own conduit KOs in nonmetallic junction boxes?

Some North American electrical boxes (usually nonmetallic ones) lack conduit knockouts, as they are designed solely to clamp NM cable. Unfortunately, some devices (the RIB series of enclosed, UL ...
0
votes
2answers
81 views

Code requirements for adhering wall light to electrical box - does the light need to be attached to the box?

I have a wall light which I'd like to mount on a wood board for decorative purposes. Below are photos of the light from the front and the back, and then a photo of the light on the board. I don't ...
4
votes
3answers
23k views

Can I install lights on a 20 amp circuit that has receptacles already wired?

I have never been able to ask the following question and get a simple straight answer and would like to know why there is a controversy, and what the answer really is. The question: Can a 20 amp 12 ...
3
votes
1answer
87 views

Can Canadian panels be used in the USA?

Here's a slick Canadian subpanel with a "generator interlock". It is a normal 2-pole panel, just like common USA panels, and it's Square D QO, which is common as dirt in the USA. However for the ...
0
votes
0answers
305 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 ...
0
votes
1answer
54 views

Does the ground pigtail to the jbox need to match the largest circuit?

In California, I have a metal jbox and, in it, there is a junction for a 10/2 NM and a 14/2. These have different size ground conductors. Does the code require a specific size ground conductor to ...
1
vote
1answer
65 views

How to protect these NM cables?

I have an old chimney that an electrician used to run cable to the attic, and they protected them with small diameter metal conduit. I have run several more cables. I could run each in it's own tube,...
2
votes
2answers
85 views

Are switch screws sufficient for load grounds?

In California, in a metal gang box with the line ground attached to the box with a ground screw, I understand that I don't need to attach a ground wire to a switch (screwed tight, captive washers ...
1
vote
2answers
179 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 ...
5
votes
1answer
40k views

Is there a specific NEC code specifying the distance between water heaters and electrical panels?

I have a condo in a large building with many identical units. Several times other owners have mentioned that the original layout of the utility room isn't up to code due to the proximity of the water ...
1
vote
1answer
50 views

Remove switch that controls thermostat

I recently bought a condominium in a large building, built in 2005. It has a single thermostat, and the thermostat works fine. But right next to the thermostat, there is a switch. It looks like an ...
1
vote
1answer
110 views

Is Drywall needed on exterior wall of garage on concrete block, 2-story house in Florida

We have a home inspector (selling house) stating they want us to put up drywall on an exterior wall in the garage. I know it's code for ceilings and the abutting walls to the interior, but do exterior ...
2
votes
1answer
118 views

Is there minimum clearance from gas stove to door?

I know there is a minimum clearance to hood and cabinets above, but I can't find a side-clearance to a doorway. My concern is someone coming through the door and not seeing the hot stove around the ...
14
votes
4answers
42k views

How do I meet the 7 feet high ceiling requirement after finishing the basement?

My basement ceiling joists are exactly 7 feet above the concrete slab. The requirement for finished living space is 7 ft from the finished floor to the finished ceiling. Since I'll loose a couple of ...
5
votes
2answers
433 views

Is it Code to support Class 2 (thermostat) wires using a gas line?

Related to this question. Our gas furnace, while quite functional, has some quirks in its installation. One of them is that the installers cut off the old (original to the house) thermostat wires at ...