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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Can a thermal expansion tank be install above the water heater?

The manufacturers instructions show the expansion tank installed with a 'heat trap 6" minimum' drop to the side of the water heater. I have a tall 30 gallon (< 17" diameter) water heater going in ...
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2answers
2k views

Is it within code to hang a pendant light independent of a junction box?

My new construction home has a 23.5' cathedral ceiling. The electricians roughed in a junction box that is slightly off-center with the room below. In order to fix this, and at the same time not move ...
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1answer
405 views

Can a washing machine closet be located adjacent to an electric panel?

We want to relocate a washer/dryer into a closet that shares a wall with the house's electrical panel (which is in the kitchen). Any code violations here or considerations?
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1answer
148 views

Electrical Codes Pertaining to Electrical Near/Under Gas Cooktops

I've got a gas drop-in cooktop that will be installed in the next couple of weeks as part of a whole house renovation. The electrician put in the 4x4" electrical box shown in the same cabinet that the ...
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2answers
600 views

Proper framing for connecting two deck beams together

I'm designing a deck by modifying an existing plan I found. The design features a large triangular projection on the right side, which is supported by a double 2x10 main beam (supported by 3-6x6 posts ...
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2answers
141 views

Roofing material for flat slope western pacific northwest

10 months after purchasing a manufactured/RVIA certified home the, landmark arch, ridge venting shingle roof began to leak, with water leaking out of the crevasses of the main beam. A roofing ...
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1answer
2k views

Are service loops allowed by US electrical code in residential wiring?

I'm about to rough-in my electrical wiring for a remodel of our bedroom and have seen several videos where people leave an extra 6-8 inches of wire looped outside of an outlet box which will allow for ...
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1answer
104 views

Outlet with two different circuits

Have a question on wiring a duplex receptacle. My living room presently has several outlets that are controlled (completely, top and bottom) by a switch. It also has outlets that are not controlled by ...
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0answers
67 views

Shed wall anchorage

I have an existing 48"x48"x4" thick concrete pad sitting atop gravel/crushed stone that goes down to the frost depth. The pad was poured with the idea being that a water tank would sit on it, and then ...
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1answer
1k views

Installing electrical box in 2x4 [duplicate]

I'm designing a custom headboard for our bed and I want to install electrical into the cubbies I am making in the headboard (primarily for cell phone charging). In my current design, the electrical ...
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2answers
6k 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 ...
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1answer
102 views

Can a single set of conductors feed utilization equipment *and* a subpanel simultaneously under the NEC?

So, let us assume we have a set of conductors (hot/neutral/ground) going off to some piece of utilization equipment. Can I also run a set of conductors of appropriate ampacity off this circuit to a ...
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1answer
828 views

Wiring for recessed lighting through ceiling with floor trusses

I have a finished basement that I'd like to add recessed lighting to. Instead of solid joists in the ceiling, I have floor trusses. In a way, this is good because I don't have to drill holes in the ...
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1answer
305 views

How to use the 2015 IRC Chapter 24, G2407.6.2 to determine combustion air?

The 2015 International Residential Code (IRC), Chapter 24 ("Fuel Gas"), Section G2407.6.2 allows for one permanent opening to be used to supply outdoor combustion air into a mechanical room for gas ...
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1answer
94 views

Can I add a lean-to to a large shed?

Is adding a large lean-to roof for a large shed going to exceed the limits for the IBC definition of a shed? The shed (details below) is already at the IBC limits for shed area and height. The lean-...
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1answer
469 views

Is make-up air required if all gas appliances are direct vent?

My fireplace is direct vent, and my gas heater is not. If I replace my gas heater with a direct vent model, do I still need to supply make-up air? The only other gas-burning appliance is a gas stove, ...
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2answers
456 views

Elevate water heater next to ceiling in garage to gain floor space

My electric water heater is in a corner of my home's garage in Dallas, TX. Code requires it to be raised 18" off the floor, so it creates this odd shaped nook in the corner. It currently sits on a ...
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2answers
95 views

Is there a lighting code restricting where lights can be placed?

I am having a new home built in New Brighton, MN, USA. We went over the plans on where we would like our lights, outlets, switches to be placed throughout the home. I asked them to place a light in a ...
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1answer
146 views

Is this the legal and best way to add power for bathroom fans?

Summary: I would like to add bathroom fans in bathrooms #1 and #2 (see drawings). There are currently no fans. I believe the existing bathroom circuit layout is not up to code so I am looking for the ...
3
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1answer
2k views

Can service entrance and branch circuit cables be commingled in an auxiliary gutter?

One of the major Code defects in my current house that I want to rectify at some point is the fact that the (only) panelboard is mounted too high up on the wall (the current panelboard's service ...
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1answer
433 views

Wiring up a light fitting made for the US market to a UK power supply

I'd like to buy this light fitting from a US supplier. I plan to get it shipped to the UK and wire it up. Is there anything I should look our for when wiring a light fitting made for the US market ...
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1answer
57 views

How to find what code is in my area for insulation in an unfinished basement?

I just purchased a house that was built and finished this year. My house is backed up to a hill, and the foundation walls get shorter from the front of house (8 feet) to the back (a little over 2.5 ...
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1answer
13k views

Can Romex (NM-B) be run in conduit for more than 10 ft when starting from the breaker panel?

The answers to this question indicate that NM can be run in conduit: Can Romex (NM-B) be run through conduit? I was hoping to enclose 12-2 NM-B in EMT for about 20 feet from the breaker box up my ...
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1answer
294 views

How to wire a solid state relay according to code

I want to build an outlet that I can control on a timer or through a device like a smartphone. I am planning on using a solid state relay for this job. I'm aware of the electrical code stipulation ...
3
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1answer
149 views

Is it NEC-compliant to place a GFCI or AFCI receptacle or deadfront device in a location not readily reachable?

NEC 240.24 requires overcurrent devices (fuses/breakers, incl. AFCI/GFCI/DFCI breakers) to be placed so that their operating means is no more than 6'7" off the ground under most circumstances, and ...
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4answers
3k views

How can I replace electrical boxes with the least amount of collateral damage?

I'm looking at a 1970-era house in VA. The outlet boxes are fed by 12/2, 12/3 NM cable. I am planning to update some of the outlets, for example to be more modern, or to be GFCI. Unfortunately, ...
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0answers
50 views

Bathroom Sink up to code?

My bathroom sink has no overflow drain hole, (not sure what the proper term is)is this up to code for an apartment in California, specifically LA County?
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1answer
213 views

Does this look alright??? Does this meet code??? Electrical surrounded by water pipes

I'm under contract for a house that needs some updating. A previous owner framed a full bath w/ shower around the electrical panel in the basement. The seller agreed to moving the panel & ...
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2answers
154 views

Where in the fire code does it say gasoline may not be stored indoors?

Re Seattle fire code, but site this applies to most U.S. cities. I think it is forbidden to keep a fueled or formerly fueled gasoline generator indoors, esp in a commercial, multi tenant building. ...
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1answer
49 views

Running 8/3 along strongback

I'm running a 220(240) 8/3 line for a table saw in my garage. I can fish the 8/3 to the box. I need to run the line to the other end of the garage. The other lines are run down the 1.5" side edge ...
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1answer
723 views

Are WAGO lever splice connectors approved for use with solid aluminum #12 or #10 with WAGO joint compound

Are WAGO lever connectors approved for use in the US with #12 and #10 solid aluminum wire with the WAGO joint compound. The use would be for copper pigtailing of aluminum wiring.
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1answer
739 views

How do you calculate water supply fixture units?

I'm trying to figure out how many water supply fixture units (WSFU) can fit off of my CPVC supply lines. I looked at the tables in the 2015 NSP , but where I'm confused is figuring out where that is ...
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1answer
138 views

In a multigang box, can I reduce the pigtails by using one single wire for all hots?

I'm curious if it's to code to use one wire (with 1/4" spots that have the sheathing trimmed off, which connect to the terminals) for all my grounds and one wire for all my hot connections in a multi-...
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1answer
84 views

Electrical Work Question

We had an electrician move our breaker box. He put in a junction box and ran a 100 amp cord, along with other wires next to one of our air vents. Is this to code? We worry that even if it is framed ...
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3answers
7k views

Do new wire runs in an existing ceiling need to be stapled down?

I've heard some people say that code requires wiring in the wall to be stapled to framing every so often (how often?), but when you are doing a remodel, is that necessary? I have a two story house, ...
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2answers
421 views

How can a ceiling fan be mounted to a fan-rated box that has been extended?

Let us say that we have a fan rated 4" octagon box in the ceiling, but the box doesn't supply enough space for all the wires up there (quite possible if the fan wiring is complicated, for instance ...
3
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2answers
391 views

How does a water meter affect the continuity of a grounding electrode system when a jumper is present?

250.53(D)(1) Continuity. Continuity of the grounding path or the bonding connection to interior piping shall not rely on water meters or filtering devices and similar equipment. 250.68(C) ...
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1answer
57 views

two conductor cable for a switch

I would like to wire a remote switch a feet above the outlet. Can I use a 2 conductor Romex (14/2) and use the black wire for hot and white wire for switched? Or do I have to use a 14/3 with ...
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1answer
107 views

What can be used for CPVC firestops?

What materials to people use as a firestop for where CPVC lines penetrate through the wall/fireblocking? According to the manufacturer, apparently CPVC does not play well with certain materials. ...
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1answer
402 views

One-way switch. Why is a separate pvc conduit used?

Why is it in the lighting circuit a separate earth wire is drawn in p.v.c conduit type of installation and not in steel type?
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2answers
1k views

Using 15 amp thermostat on a 20 amp circuit

I've seen this question about receptacles, but what about thermostats? My house in Washington state has really old mechanical thermostats that don't have their rating specified anywhere, but judging ...
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1answer
99 views

Building permit minimum fees — is there such a thing as a job “too small to permit” in some jurisdictions?

The electrical permits in my jurisdiction (Midwest USA city) run about $15 for a branch circuit off the top of my head (don't have the exact number, but it suffices for this question). There are a ...
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4answers
4k 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 ...
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3answers
338 views

Scotchlok connectors

Just bought a log home built in 1980. Doing some remodeling /updating. Almost all the junction boxes have 3M Scotchlok in them. Sometimes they are referred to as "vampire connectors." Are these ...
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3answers
491 views

Semi-flush mounting a surface mount (NEMA 3R) panel

This is a new one for me. The owner needs a new main panel in a wet location but wants the box inset in the wall. I cannot find a reason not to do it, other than it will be a bit harder to wire. The ...
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1answer
248 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 ...
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2answers
420 views

Adding a (series) switch to a timer

I have an existing porch light on a (spring-style) timer. I would like to add a switch for more convenience, so that the light could be manually turned on for a few seconds or for several hours. The ...
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0answers
63 views

Electric on bath cabinet side

Is it allowed by NEC to install an outlet into the side of a bath cabinet like in the picture. I want to cut a section of the cabinet side for a box and then punch a hole in the back wall and run the ...
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2answers
46 views

CSA Approval for use in New York State sufficient?

After extensive research, I'm interested in using a specific product for roof ventilation (http://www.ventilation-maximum.com/English/product-model303.html). All conditions for installation as per the ...
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2answers
1k views

Interpreting stair railing code

I am reading this document Looking at this line: (2) Stairways having less than four risers need not have handrails or stair railings. Is a fair interpretation that on stairs with more than ...