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
22 views

Mystery Electrical Voltages in Duplex Junction Box

So I'm finally getting around to installing the ceiling to floor bookcase in my home office. There is a single duplex outlet that I intend to reverse from facing into the office, to facing outwards ...
4
votes
1answer
41 views

What code requirements exist for low-sill, upper-floor windows?

I own a house in Texas (USA), built in 1885. I am renovating, enclosing the second floor back porch; it's essentially an addition, with a bathroom, a storage closet, and a hallway. The area will be ...
4
votes
2answers
1k views

Building code requiring rooms to have internal windows?

I am staying at the Radisson in Colorado Springs this evening and I notice that some of the rooms, in an extension built about 15-20 years ago, have large security windows facing into the hallway. The ...
0
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1answer
39 views

Why are 3-1/2 (16d) nails so hard to find?

So I'm a little confused. It seems like 21 degree fullhead framing nailers are fairly standard. According to the ...
0
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1answer
15 views

Deck joists and ledger gap

Sorry if my terminology is bad, I tried to pick up some of the terms and do some research in the ICC before posing the question here. I've got a contractor replacing a deck for me and I noticed that ...
3
votes
3answers
77 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 ...
3
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4answers
104 views

In a secondary panel, are grounding and neutral bus bars required on each side of the hot bus bars?

In a secondary panel (not a service panel), the grounded (neutral) bus bar is to be kept isolated from the grounding conductors (250.24(A)(5)). In article 408, the code has this to say... National ...
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2answers
299 views

Can a white (or other color) wire be remarked to serve as a grounding conductor?

In a question related to plugging in a device with a 6-20P Plug (240V Ground + 2 Hots) into a 10-30R (120/240V Neutral + 2 Hots) receptacle, I suggested replacing the outlet with a 6-20R and using ...
2
votes
1answer
73 views

What can happen if someone doesn't get a building permit for a renovation?

What are the possible repercussions if someone doesn't get a building permit when doing a renovation? I have heard many people I know say they never got a building permit to get "x" done and they have ...
1
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1answer
47 views

Finished basement outlets, GFCI or AFCI?

I am finishing a basement and I am not sure if I need to install GFCI or AFCI outlets. Is it better to use a GFCI/AFCI breaker instead of the outlets? NOTE: the finished basement will be used as a ...
0
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0answers
46 views

NEC 6/12 rule clarification

I understand that you must have an electrical receptacle 6 feet from any obstruction or break in the wall, such as a doorway, and no more than 12 feet from the previous electrical receptacle. Does ...
0
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3answers
55 views

Basement egress through office

I have a question that is similar, but different, than: Can I have an office in my basement without egress? I want to finish off my basement as such: My question is, by putting the red walls up, ...
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0answers
31 views

Stairs codes for length between last step and door opening?

Hi I want to add a door to the bottom end of my stairs but I want to check the building codes first so that I will not be caught in a house inspection if I am going to sell my house. I could find ...
1
vote
0answers
32 views

Can I move well pipe from under front steps and still satisfy Connecticut code?

I have a problem with my well pipe - it leaks in the spring (when snow melts). As you can see from image below - multiple hack repairs were attempted by previous owners. I was going to excavate the ...
0
votes
2answers
31 views

code requirement for cooktop gas hookup to be in another cabinet?

The manual on my kitchen cooktop states: If a built-in wall oven is to be installed below this cooktop, the grounded outlet and gas supply piping must be located in an adjacent cabinet. Is ...
0
votes
1answer
60 views

Can I run my hydronic circulator off an appliance cord in order to use it to purge air?

I have a hydronic heating system with a relatively powerful B & G circulator pump. This pump has a relay that is controlled by the furnace electronics; if there is no power to the furnace, ...
0
votes
1answer
55 views

Can a cord and plug attached to a wallbox be used as a transfer means for fixed wiring downstream of the box?

So, we have a circuit that runs from the panel to junction box A, then to junction box B, and then onwards to a load. Can the fixed Chapter 3 wiring between junction box A and B be replaced by a ...
1
vote
1answer
99 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 ...
1
vote
1answer
69 views

Is there anything that forbids an Article 409 industrial control panel within a dwelling unit?

Can an "industrial control panel", complying with NEC Article 409 and constructed with UL 508 listed devices, be used to control loads in a dwelling unit/residential occupancy? It would rely on the ...
4
votes
2answers
146 views

House has no plumbing vent — is this a solution?

I've been living in a fixer-upper for a while... I've been fixing a lot that was previously done wrong. I've finally gotten around to ripping out our first floor bathroom (two full bathrooms) and ...
3
votes
2answers
99 views

According to NEC 210.52 can this receptacle be counted as part of the required outlets in a dwelling?

Under NEC code artcile 210.52 Dwelling Unit Receptacle Outlets ...The receptacles required by this section shall be in addition to any receptacle that is: (1) Part of a luminaire or appliance, or ...
1
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1answer
51 views

Is there anything in the NEC that would prevent me from attaching MC cable with ground to EMT with a compression coupling?

Is there anything in the NEC that would prevent me from attaching MC cable with ground to EMT with a compression coupling? I will be skinning the MC cable roughly about 10 to 15 feet where it enters ...
3
votes
2answers
78 views

Is rodent damage considered “physical damage” under the NEC?

Does the potential for rodents to access/gnaw on a cable under normal circumstances render it subject to "physical damage" in the sense the NEC intends that term to be used?
0
votes
2answers
35 views

Understanding deck spans for beams.

I've been looking at various span charts for decks and I'm still not quite sure how to calculate it all when you take into account not just the joists, but the beams and posts as well. What we ...
0
votes
2answers
72 views

NEC Breaker Selection for Motor Loads

In the case of motor loads connected to a long branch circuit, why does NEC Table 430.52 limit selection of an over current protection device (OCPD) to a smaller size than the branch conductor will ...
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vote
2answers
84 views

Are all of these wirings code-acceptable for 3-way switching overhead lights?

So, i have a single switch by the garage door controlling the overhead lights like so: and i would like to add a switch by the other door (shown) and wire it for 3-way control of the lights. I'm ...
0
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2answers
44 views

What conduit should I install underground that meets code?

I want to run a conduit under my front yard about 20 feet. I will be trenching to 18 inches deep, but was curious what the easiest conduit is to install that meets code? PVC? EMT? Liquidtight?
2
votes
1answer
107 views

Can one of the (two or more) required 20A circuits for kitchen receptacles also serve a Dishwasher? (California Code)

Does the California Electrical Code allow one of the two required 20A circuits powering the wall / floor receptacles to also power a dishwasher? Bonus question: If not, and the dishwasher requires ...
1
vote
3answers
383 views

Electrical receptacle inside kitchen cupboard? (California code)

Is an electrical receptacle allowed inside a kitchen cupboard by the California Electrical Code? (i.e. installed so that the receptacle face plate is on the inside back panel of the the cupboard, so ...
2
votes
2answers
126 views

Is there a way to extend electrical wire where the splices can be finished over?

I want to extend some wires to relocate some switches. Normally one might do this by splicing new wires in and covering the junction box with a cover plate. Is there a way to permanently splice wires ...
2
votes
1answer
72 views

Cat6/Low Voltage Termination in a wooden enclosure

I have been bouncing around the idea of running CAT6 thru my older (1970s) house. Single story with an unfinished attic I have identified a bedroom closet as the potential location for the central ...
0
votes
1answer
86 views

How deep are gas lines and electrical lines under ground (to code)?

Before I start, I know I should always call Diggers Hotline (or comparable service depending on where you live) to have them mark all under ground gas & electrical lines. At what depth ...
0
votes
1answer
52 views

Running extension cord and Cat6a through wood closet shelf?

I'm in the process of installing a wireless router on a closet shelf, and I'd like to know the proper procedure for routing the extension cord and Cat6a cable. Per the picture below: The extension ...
1
vote
1answer
118 views

Is a plug adapter considered an “extension cord” under the NEC?

Is an adapter from a plug (say a NEMA 14-50) to a different socket (say a NEMA 6-20 or L14-20, or even a NEMA 6-50 for that matter) considered an extension cord by the 2014 NEC? If it isn't, then what ...
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vote
0answers
87 views

Is it OK that my circuit breaker panel does not latch closed

I plan on doing some work and having it inspected. As part of the work I will be switching some normal breakers to AFCI. Before I get started I notice my panel does not fully latch closed. The latch ...
0
votes
1answer
62 views

Are 2x4 rafters legal in Connecticut? 13 ft runs

so I bought a REO house and about to redo the roof above the garage. I've noticed that I need to replace some rafters. However - I'm seeing that rafter are 2x4... Is that code-legal? p.s. by 13 ft ...
2
votes
1answer
44 views

Add drain line to existing Island fixture vent?

In CA, would code allow for a drain line to be tied into the vent line shown at the location of the red arrow below? Single family home. Happy to draw a picture of where that vent lines goes, if ...
0
votes
2answers
170 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 ...
0
votes
1answer
41 views

wiring lights and continuing the circuit to another light circuit

i have 1 switch running the 1st 3 lights then the next switch runs 1 light. I mocked this up with spare wire and it works, but is it ok to do it like this?
10
votes
2answers
518 views

Why is it OK to put multiple ground wires in the same bus hole in an electrical panel?

It's not clear to me why ground wires aren't subject to the same rules as neutral wires (one per bus bar hole). What's the reasoning here?
0
votes
4answers
89 views

How close to beam edge can I put light fixture nails?

I removed a 10-15 lb light from my ceiling. Beneath, the electrical box was at an odd angle: So I pulled that off as well, which revealed this hole. Those nail holes which were holding in the ...
0
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2answers
62 views

Is Black & Decker's “Codes for Homeowners” (3rd edition, 2015) a useful resource? [closed]

Is the Black & Decker "Codes for Homeowners" worth buying as a home improvement reference work?
0
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1answer
79 views

Adding ground to an existing conduit

Continuing my basement shop brainstorming... As I said in another question, the good news is that I've got a 30-amp 240V circuit more or less in the right place and available, and easily accessible ...
2
votes
1answer
141 views

Another code question: can I take a 110V outlet off one leg of a 220V circuit?

Wiring the workshop, it'd be simplest to use the 220V circuit to also supply the shop's 110V outlets. I know some machines/appliances do that internally; can I expose it on the wall? (I'm never sure ...
4
votes
2answers
137 views

Can a 220V US circuit have more than one 220V outlet, by code?

When I move the laundry, I'm considering switching to a gas drier -- but even so it'd be nice to have the 220V drop there for future-proofing. However, if I'm not using it for the drier, I'd like to ...
2
votes
1answer
394 views

does this look like an up to code support beam?

we had an entry way widened a bit which required them to install a longer support beam. I'm absolutely not a professional. But the 2x4's supporting the larger beam don't seem very substantial to me. ...
3
votes
2answers
131 views

What to do with the wires when removing baseboard heaters

I recently put in a forced-air whole house HVAC system in my old house. I'll be yanking the old electrical baseboard heaters from everywhere in the house soon. I'm wondering what all would be ...
0
votes
1answer
295 views

How many ceiling fans and switches can I put on one breaker [duplicate]

I have a person that wants to wire in four light boxes and four ceiling fans with switches and I need to know if I can run all four of them safely from one breaker and if so what kind of breaker? This ...
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0answers
75 views

basement bathtub straddling a crater

we got this house recently. i was working on paint and finishing our basement bathroom.. trying to remove the baseboard trim surrounding the the bathroom shower, i noticed that it came out ...
1
vote
2answers
80 views

Running LV conduit through attic - what do I need to know?

I want to run 1" LV conduit (Carlon Resi-gard) through the attic. Basically, I am using the attic for the "horizontal" run from one room to another. I will be sealing the hole with some caulking, ...