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
38 views

3-wire electrical wire for recessed lighting

I want to install 4 LED recessed lights in my living room. No ceiling lighting currently exists though there is an existing wall switch that was decommissioned by the previous owners that I plan to ...
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3answers
157 views

Are whole-house GFCIs legal in the US?

Over here in Europe, a common approach to GFCI (RCD) protection is to have one (three-phase) 30 mA GFCI breaker as the main breaker (or something similar such as one GFCI per (sub)panel or one shared ...
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2answers
434 views

I want to run 75C wire. Can I overcome 60C receptacle ratings with a pigtail?

Hypothetical. I am hooking up a range/oven that requires 50A. Its terminations are rated 60C, and there's no way around it. The 100' wiring run is all in EMT conduit and I am running THHN wires, ...
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1answer
70 views

Best way to make wiring to outbuilding legal

I'm fixing some wiring in an older house and I believe the wiring to the outbuilding is not legal. I would like to correct it if possible, but will bring in a professional if necessary. The current ...
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3answers
644 views

Two GFCI outlets on the same circuit, just for code?

I have a condo that hasn't been updated in probably decades, and I am looking to sell it in the near future. As part of my updates, I am installing GFCI outlets in the bathrooms and in the kitchen ...
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0answers
52 views

How can I meet NEC code for Class 2 at the power supply with multiple strips of LED lighting?

...The Project... Install 94 feet of perimeter lighting around a kitchen/dining/living space. The desired product is a color tunable LED strip. Possibly this product but I could use an equivalent ...
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2answers
137 views

What's wrong with the wiring in this light switch box?

In another post it was brought to my attention (thanks @Harper) that the wiring in one of my light switch boxes might be incorrect. It was something about a shared neutral, but I don't have the ...
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1answer
138 views

Is it Code legal to hardwire a refrigerator in a basement?

Suppose you have a refrigerator in a basement. You have two dueling safety systems: The cord-and-plug-connected fridge needs to run to keep food safe, but the GFCI needs to trip to save people from ...
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2answers
2k views

What does code say about powered semi-permanent furniture?

I like to build things, and I've been drafting up plans for a headboard for quite a while now. One of the things I want my headboard to have is a number of outlets, since laying on my bed is where I ...
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3answers
81 views

Dedicated Laundry Room Circuit?

I live in Florida. According to the Florida Residential Building Codes (2017): E3703.3 Laundry circuit. A minimum of one 20-ampere-rated branch circuit shall be provided for receptacles located ...
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1answer
58 views

Can I paint the electrical panel? [duplicate]

I am painting the room in our basement that contains the electrical panel. I think it would look a lot better to paint the panel the same color as the wall, instead of the plain grey-green metal. I've ...
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1answer
157 views

Square D QOC 12 125: Is it possible to bring this subpanel up to code?

I opened up this subpanel for the first time because when I opened the walls for contractors to install floor drains, I found a circuit with four splices that were any/all of: not enclosed in ...
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5answers
460 views

Can I use a 2-wire NM cable staple on 3-wire cable?

I have a package of Gardner 1/2 inch staples and the package shows that they are good for 2-wire, see below: I am running some 14/3 wire (flat) wire for AC hardwired smoke detectors but these staples ...
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1answer
113 views

How to run wire through corner with lots of studs

I have a new garage addition that I'm doing the electrical for. I got to the point of running the wires for the front coach lights and realized a snag. I'm trying to figure out the best way to run ...
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0answers
43 views

Widening a closet opening, what type of header to frame?

I have a standard 30 inch closet door. I want to expand the opening to 48 inches (to install double bifold doors) I am 98% certain this wall (which is on second floor) is not load bearing: There is ...
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2answers
572 views

US residential stair railing code: What is the requirement for terminating an open railing?

We're trying to pick out railings for our house. Our stairs are going to have an open side and we want to use a modern railing system such as this one: You can find plenty of similar images for ...
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7answers
3k 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 ...
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1answer
47 views

Can I recess electrical panel deeper than usual?

In California, I know that code limits how recessed behind the finished wall the electrical panel can be. I'm interested in improving the acoustic STC of the wall assembly and the easiest way is to ...
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2answers
82 views

Correct gauge and jacket type for feeder wire to subpanel?

I need to install a 200A panel about 100 feet from the meter base. I have 400A service coming to the building, broken out at the meter base into two 200A exterior disconnects. One disconnect is ...
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3answers
94 views

Do cables that are not NM type need to be derated when used as NM?

I am a newbie in this forum but have been looking at some of the wiring in my house especially some XHHW-2 wiring used for the electric range. I need to have some clarification of cable terminology. ...
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1answer
134 views

Is it up to code (anywhere) to have a ground wire poking out the end of a wire nut?

A few days ago there was a hot question about wiring with several pictures, here's one. Ignoring all the other issues with this wiring job, on the right hand side we see a green wire nut with the ...
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1answer
126 views

Do I need outlets in a built-in bookshelf?

I know that there is normally an outlet every 6 feet rule for electrical code. However, I am doing a renovation in which an entire wall is a giant bookshelf and cabinet built in which is 17 feet wide....
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7answers
6k views

Are soldered electrical connections code-compliant?

I was changing a switch in my house when I found a number of connections in the electrical box that were soldered rather than secured with a wire nut. The solder joints look very well done, the ...
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3answers
753 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 ...
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2answers
41 views

Window Tempering Rules and Interior Doors

Are interior doors included in the discussion of the 24/60 rule? In other words, if I have a pane of glass that is within 24 inches of an interior door, does that mean it must be tempered?
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1answer
144 views

Can new construction recessed lights be installed in inaccessible ceilings?

In California, does code allow me to install recessed lights in a ceiling which which be inaccessible once closed up? (Such as between floors) I have seen it done many times but I was thinking that ...
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1answer
25 views

Intl Mechanic Code 309.1 “Space-heating systems” clarification

I am looking at the ICC Intl Mechanical Code, in section 309.1 309.1 Space-heating systems. Interior spaces intended for human occupancy shall be provided with active or passive space-heating ...
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3answers
70 views

Electrical Question for Receptacles in guest house

Wiring a out door shed that has everything that a home does; bathroom kitchen living room and extra bedroom. Pretty much like a guest home you can say. When I run my wire in the bathroom of it. The ...
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0answers
45 views

Do vanity lights require a junction box? [duplicate]

We have an electrician at our new home in Utah installing some new lights, after removing some of the installed lights we are noticing that above the vanities there are no junction boxes behind our ...
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1answer
48 views

Spray foam insulation against metal roofing

The context of this question is new construction for a small (28' x 32') outbuilding that will be used for commercial purposes. All work will be permitted and inspected (governed by these codes). I am ...
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0answers
83 views

Shed under power lines

I wish to build a shed, but the location I want to use has an overhead power cable running from the utility pole to the neighbor's house. The line has about 12' of clearance from the ground. Is ...
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3answers
585 views

Can I reuse old electrical wire?

I'm adding new lights to my basement ceiling. I pulled out the old messy tangle of wires and ran new romex, but was missing the 4ft needed to reach the last box. I reused the old wire. Will this ...
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2answers
65 views

Will I be forced to bring fridge and laundry circuits up to code?

I'm adding new lights and a few receptacles to my basement. I just discovered that my kitchen fridge and laundry washing machine are both on the basement lights circuit (14awg, 15A breaker). I think ...
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3answers
221 views

R302.7 Under-Stair Protection - does drywall need to be below stringers or just treads and risers?

I am finishing a room in my basement, and a wall will butt up against where the stairs are. I'm planning on making a small door to access the volume below the stairs for a small storage area. The ...
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2answers
141 views

What are the legalities associated with mounting splicing wire connectors?

There are some situations, such as those involving large junction or pull boxes that serve as central takeoff points for many-plexed homeruns or homerun banks, enclosures that form central splice ...
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1answer
122 views

What box extender to use for dryer outlet?

I am planning on putting beadboard wainscoting on a laundry room wall. I will need to add an extender to the dryer's 240v outlet to keep it to electrical code and have the outlet sit flush up against ...
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1answer
44 views

Inner deck guardrail posts and deck framing connectors

I am mounting the deck guard rail posts inside the frame before adding the decking. I have used deck framing connection hardware as suggested in the Simpson Strong-Tie deck connection guide. One ...
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1answer
105 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 ...
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2answers
131 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 ...
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1answer
111 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 ...
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3answers
954 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 ...
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2answers
250 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 ...
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0answers
27 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 ...
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3answers
168 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 ...
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2answers
100 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. ...
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3answers
135 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 ...
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1answer
82 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 ...
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1answer
39 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
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2answers
60 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 ...
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0answers
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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 ...

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