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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2
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3answers
42 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 ...
0
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1answer
585 views

What codes are invovled in running an overhead subpanel feeder to a detached garage?

This subfeeder will be going to a detached garage about 30ft away, and powering a 100amp subpanel. I'm not sure what codes are involved in this feat. I'd like to know the codes involved for compliance....
6
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2answers
38k views

Is an explicit ground wire required through steel conduit?

We just bought a Chicago-area house and found that there's no ground wire in some of the recently re-wired areas. I thought that the national electrical code requires a ground wire for new ...
1
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1answer
47 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 ...
3
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1answer
148 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 ...
8
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5answers
6k views

Dishwasher electrical connection up to code?

When I removed my dishwasher in order to level the floors and install new flooring, this is what I found: It looks like the electrician just left the wire sticking out of a hole in the wall, but not ...
3
votes
2answers
10k views

Can I run wires from two separate circuits through the same box?

Can I run wires from two separate circuits through the same box, if one of those circuits is just passing through (no connections)? I have a switch in the basement which is currently wired to outlets ...
5
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5answers
428 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 ...
13
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3answers
153k views

How do I properly ground my subpanel that only has one neutral/ground bar?

I am adding a sub panel in an unattached building. My sub panel has the connection for the 2 hot wires coming from the source panel (a 40 amp double breaker) In addition it has one neutral/ground bar ...
4
votes
1answer
77 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 ...
0
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1answer
38 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
0
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0answers
32 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 ...
4
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5answers
13k views

What is code or common rule when securing multiple electrical lines?

What is common practice or code when running new electrical lines in a home(15 amp/20 amp) in a basement that feed up to the 1st and 2nd floor of a home? Is there a rule on how many wires can be run ...
4
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2answers
129 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 ...
3
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2answers
537 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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3answers
5k views

Is a dedicated circuit to gas furnace always required?

USA NEC 2014. Is there any way to dodge the requirement for a dedicated circuit for a gas furnace? I need to hang one more small hardwired load right near the furnace, and would rather not run a ...
12
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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 ...
3
votes
1answer
46 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 ...
2
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2answers
80 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 ...
2
votes
3answers
89 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. ...
10
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5answers
15k views

Is it safe to run a USB cable inside a wall?

I need to extend a USB device from a corner of my room to the above the fireplace. Since I'm already going to be installing some HDMI and audio cables through the wall, I'd like to have my USB device ...
0
votes
1answer
125 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 ...
3
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2answers
22k views

Conduit Size for Sub-Panel run?

I have old overhead wires that go between my home and a detached garage. The plan is to remove the overhead wires and install a new sub-panel in the garage with an underground (PVC 80) run between the ...
0
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1answer
261 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
1answer
133 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 ...
2
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7answers
5k views

Any problem with installing two identical circuit breakers in series?

Suppose I want to reduce risk of a circuit breaker malfunctioning and failing to disconnect a shorted circuit. What if I install two identical breakers sequentially (one after another) so that if one ...
4
votes
3answers
1k 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, ...
3
votes
1answer
121 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....
4
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2answers
2k views

How bad is it to attach a gas water heater to a gas furnace electrical circuit?

I'm looking to replace my existing water heater with a more efficient model. One of the things that makes better models more efficient is the replacement of the thermocouple / pilot control system ...
28
votes
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 ...
0
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3answers
172 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 ...
2
votes
1answer
228 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 ...
1
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2answers
598 views

Does NEC require a separate circuit for a whole house fan?

I need to install a whole house fan and would like to know if I am required to have that fan on its own circuit. I am in Los Angeles County if you happen to know of any L.A./California deviations.
9
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3answers
697 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 ...
0
votes
1answer
308 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) ...
0
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2answers
40 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?
7
votes
1answer
142 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 ...
1
vote
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 ...
0
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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 ...
0
votes
1answer
86 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 ...
1
vote
1answer
45 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 ...
1
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0answers
44 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 ...
0
votes
2answers
64 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 ...
0
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0answers
69 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 ...
3
votes
2answers
425 views

electrical work: create “future boxes” - is this to NEC code?

I would like to run cable for an in-wall heater but not actually connect to the heater right now, I just want to get the cable run and connected to the sub-panel (along with all the other cables that ...
5
votes
3answers
539 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 ...
1
vote
3answers
158 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 ...
3
votes
1answer
96 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 ...
1
vote
1answer
100 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 ...
0
votes
2answers
77 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?

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