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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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Is it acceptable to have nail penetrations in a hot-mop shower pan?

We're currently living through the nightmare of having bought a brand new house where the primary shower started leaking. Builder warranty was used and they ripped out all the tile, mud, and hot mop ...
MikeKrak's user avatar
-1 votes
0 answers
41 views

Does my detached garage setback change after addition and remodel

I’m considering options for an addition and renovation on a house in Los Angeles. The house is 1100 sqft with a detached 2-car 20’x20’ garage that has an ADU rec-room attached to the back of it. My ...
drubular's user avatar
0 votes
0 answers
39 views

When an electric oven junction box needs to be relocated can a whip be run from the old box under US NEC 2014?

Our double wall oven went kaput and had to be replaced. Discovered today that the new oven and the old oven (same manufacturer) want the junction box in different locations. Is it code-compliant (NEC ...
mr blint's user avatar
  • 1,870
2 votes
1 answer
377 views

Are 15 amp outlets in the same junction box as a 20 amp outlet acceptable by code?

So I went through a project to add a handful out outlets to the outside of my house, and being one to only do things once I decided it was going to be a 2-gang box, one 20 amp receptacle and one 15 ...
Sidney's user avatar
  • 1,665
1 vote
2 answers
50 views

Handrail type and locations for my staircase rebuild

I tore my whole balustrade apart in order to install new flooring on our stairs. We had the intention of also eliminating the wall rail on the opposite side where there’s a full length wall. This idea ...
Mr Wood's user avatar
  • 75
4 votes
4 answers
926 views

Any possible exceptions/ways to (code compliant) put communication wire in same EMT as line voltage?

I know generally it’s not allowed to put low voltage signals into the same conduit (EMT) as line power runs. But I am wondering if there are any exceptions or ways to achieve it (code compliant). For ...
divB's user avatar
  • 1,401
1 vote
2 answers
105 views

How many 100A/200A conductors can I run through a single conduit from my main service panel?

Current situation: main service panel (MSP) with 200A service on exterior wall. It feeds a single sub-panel via #2 copper conductors and is protected by a 100A breaker. These three #2 conductors to ...
divB's user avatar
  • 1,401
1 vote
0 answers
29 views

Preservative-treated posts in post frame construction: code interpretation

I am designing and building my own post-frame shop building and I need help with interpretation of the code. Specifically, my posts are connected to an engineered concrete foundation with wet-set ...
jacob's user avatar
  • 111
0 votes
0 answers
35 views

Is a GFCI outlet subject to NEC 250.130.C.4, ground supplied from same enclosure as power?

According to 250.130.C.4 the ground connection for an outlet may be borrowed if needed from another junction box so long as it comes from the same "enclosure" (subpanel). If a two-prong ...
jay613's user avatar
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0 votes
1 answer
90 views

How can I repurpose an existing 40 amp circuit that serves a central air conditioner outdoors for a 30 inch induction range?

How can I repurpose an existing 40 amp 220 volt circuit that services a central air conditioner outdoors to a 30 inch induction range in the nearby kitchen that requires a 40 amp circuit? The ...
Rules for mark's user avatar
2 votes
3 answers
905 views

Should I hard-wire only three, of many, smoke-alarms or wirelessly interconnect all of them on batteries?

My local inspector has given me the option to install battery-operated smoke detectors, but he says they must be interconnected. He would prefer that I run wires and put at least one hard-wired ...
Ryan Mortensen's user avatar
6 votes
0 answers
149 views

Incorrect breakers in Thomas & Betts Panel

I have a Thomas & Betts panel with 40 slots and was going about trying map out the circuits when I noticed a few suspect breakers. The entire right side of the panel contains only T&B (type TB)...
Jwawa's user avatar
  • 61
0 votes
1 answer
50 views

Can I reduce wire gauge downstream of a limited-current relay?

I am planning to add an ICM102F relay to a switched circuit which powers a circulation pump. That pump is served by a non-dedicated 20A breaker and run with 12AWG MC cable. The relay is rated at 1.5A (...
Matthew's user avatar
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0 votes
1 answer
37 views

How would you design a code legal guard railing on a raised block deck that also has a 22" high block bench that runs along the deck perimeter? [closed]

In December a contractor built a raised masonry block deck with a wall/bench on top. I didn't plan the job well, so now I'm planning for 37' of guardrail. I would prefer the guardrail didn't hide ...
PierreDelecto's user avatar
0 votes
0 answers
67 views

Is framing a basement floor with treated lumber code compliant? [duplicate]

Just finished framing a basement with a concrete floor. The floor plates are framed with treated lumber. A carpenter that was quoting out other work made a comment that treated lumber indoors wouldn’t ...
Alans's user avatar
  • 17
0 votes
1 answer
36 views

Solar wiring and code requirements [closed]

Are the amp ratings the same for solar power as general electric supply to the house? I'm buying property and building my own home out of 2 converted large sheds with total of 736 ft². 2/2, w/d, ...
Yogitech60's user avatar
4 votes
5 answers
2k views

Which switch in a 3-gang box should control the stairway lights?

At the bottom of my (unfinished) basement stairs, there are three switches in a three-gang box: one is a 3-way switch controlling the stairway lights, the other two are for different lighting zones in ...
bitsmack's user avatar
  • 1,147
1 vote
1 answer
93 views

Code for deck footers in sugar-sand

What is the Code for "deck footers" that are in a sugar-sandy area?
Mark's user avatar
  • 11
0 votes
1 answer
55 views

Circuit issues in garage [duplicate]

I have a freezer in my garage and we purchased a new fridge for our garage. Everything was fine for a week but suddenly the fridge gfci outlet shuts off and turns off the power to the whole garage! ...
Tanya Robertson's user avatar
1 vote
3 answers
220 views

Does a hallway to a walk-in closet need to meet width requirements?

I am putting up two new walls (highlighted in green below) to make room for a walk in closet. The hallway established for access to this closet is not going to be a minimum of 36" wide. Do I need ...
jonas_namespace's user avatar
2 votes
1 answer
295 views

Does no-receptacle on >50% hardwired loads rule also apply for dedicated receptacles?

According to the answer from Can I wire my infrared heating panels to my existing circuits?, it is not allowed to have general purpose receptacles on circuits that have >50% fixed load. Does this ...
divB's user avatar
  • 1,401
0 votes
2 answers
102 views

Junction box cover required for a non-light ceiling device, and if yes, which one?

I am installing one of these infrared heating panels hardwired on my ceiling. My plan is to put a junction box into the ceiling (same size as a ceiling light), located underneath the panel. The wire ...
divB's user avatar
  • 1,401
1 vote
3 answers
134 views

Can I use this 200A main breaker with AWG2 wire?

In Can I use a main breaker as an “occasional” disconnect switch? I asked whether I can put (back) my 200A breaker and use it as "occasional local disconnect" in my 200A sub panel that is ...
divB's user avatar
  • 1,401
0 votes
1 answer
61 views

Can I attach an awning to a load bearing door header and frame?

I have a patio door with a load bearing header and frame that opens out to a deck. The only cover on top of the door is the roof overhang with a gutter running along it. The door is in an exterior ...
Munir's user avatar
  • 103
0 votes
1 answer
97 views

Im going to be building 20x20 carport off of my Garage and wondering how far i have to dig for the 4x4 posts and will fill with concrete?

For building off of my garage I'm going to build a 20x20 carport for winter. I will enclose building the walls during winter. My questions are is how far down do I gave to dig for the 4x4 posts, how ...
David's user avatar
  • 1
0 votes
3 answers
357 views

Can I use a main breaker as an “occasional” disconnect switch?

I had a 100A service (MSP) with a 100A sub panel. I do not know the feeder size to the subpanel but it supports 100A but definitely not 200A. Last year, the service (and MSP) got upgraded to 200A. The ...
divB's user avatar
  • 1,401
0 votes
0 answers
42 views

Running power through a faceplate to code?

I have a new HVAC system in a closet where the blower plugs into a socket, which is how the old one was setup. Inspector says the plug is no good, it has to be wired in. So, it's a 2 gang plastic box, ...
k43dn's user avatar
  • 1
4 votes
1 answer
953 views

Can I wire my infrared heating panels to my existing circuits?

I am getting two Wexstar 550W infrared heating panels that I will install both on the ceiling. They can just be plugged into a regular outlet. However, per FAQ they can also be hardwired and this is ...
divB's user avatar
  • 1,401
1 vote
1 answer
115 views

Running exposed wiring from outdoor light fixture to other lights/camera? Exposed nuts? safe/code?

After a neighborhood break in, a neighbor had someone come and do wiring so they could have camera, etc. I thought it was odd and might be unsafe, as well as non-code to have wires coming out of a ...
HelpEric's user avatar
  • 543
3 votes
1 answer
442 views

Are exposed cables along the ceiling in a finished garage code-compliant?

Bought a house a year ago, previous owner had an electrician re-wire a lot of the house when they did a bunch of remodeling about 4 years ago. They ran all the cables on the wood center beam in the ...
Ryan's user avatar
  • 33
6 votes
2 answers
3k views

Is my contractor right that our nonreturnable hardwired heated towel rack can't be installed in our bathroom?

We're working with a design-build firm, doing a gut reno on our primary bath. We purchased a Watermark TWRD3-24 electric towel rack (it's a set of 3 individual heated bars, specs and instructions here)...
bwk's user avatar
  • 163
0 votes
3 answers
239 views

What is the smallest Awg stranded wire that can be used in a house on 20amp breaker?

Smallest stranded wire that can be used with 20 Amp breakers
Swaggmethod 's user avatar
0 votes
1 answer
63 views

Federal Pacific panel replacement

Just inherited a 1956 built home in SC with a 100A FP sub-panel. There are MANY other major and minor code-related and safety issues such as grounded outlets with no ground wires. My question is ...
Steve G's user avatar
  • 13
0 votes
0 answers
53 views

Massachusetts Gas Dryer flex supply line

I have a licensed plumber appt set next week to replace my gas dryer flex supply line with a longer line. Presently it has a 48" flex line but it restricts access needed by a drain company to ...
Joey's user avatar
  • 1
2 votes
1 answer
88 views

Can I feed a shared garage from 2 meters for EV charging?

Suppose I have a duplex, building A, which has 2 electric services. It also has a detached garage structure, building B. Each tenant has half the garage. Weirdly, garage lights are powered from the ...
Harper - Reinstate Monica's user avatar
1 vote
1 answer
128 views

How do I automatically run a fan whenever my freestanding gas fireplace is running?

Under the 2020 NEC, I'm looking to add an extra fan to a freestanding gas fireplace beyond the built in blower. The extra fan is an ordinary wall fan with a 15A/120V plug. The existing blower uses a ...
popham's user avatar
  • 10.4k
2 votes
1 answer
126 views

Why are the box fill on Carlon boxes inconsistent/wrong?

This is a side question to Box fill calculations for a light switch in a Carlon old work box because I realized what is written on the Carlon old work boxes is possibly wrong or at least inconsistent. ...
divB's user avatar
  • 1,401
0 votes
2 answers
196 views

Box fill calculations for a light switch in a Carlon old work box

I thought I got the box fill calculations right but there must be an issue, still. Because, assuming my calculations are correct, no single box on the market would be large enough for a simple light ...
divB's user avatar
  • 1,401
0 votes
1 answer
124 views

Running 14/2 Romex vertically up a concrete wall

I'm in western NY. I have an outlet in my unfinished basement that I need to connect to the electric panel. I have the 14/2 cable wired into the outlet and I just need to run it up the concrete wall, ...
THill3's user avatar
  • 139
0 votes
1 answer
133 views

Massachusetts Condominium Code Requirement?

I own a condominium in Massachusetts and recently had water damage inside a wall that is shared with the adjoining unit. The drywall has been removed but surprise,no insulation was present. That ...
Joey's user avatar
  • 1
0 votes
2 answers
280 views

Does a flat 2x4 window header in a bearing wall need to be reworked?

For a small brick ranch, two windows (24” and 28”) were added to a load bearing wall. 2x4 header was used over jack studs. However, the header is laying flat rather than on edge. I know having the 2x4 ...
D C's user avatar
  • 1
7 votes
2 answers
162 views

Electrical Code Compliance Question

UPDATE: First. Thank you guys for your responses. My apologies for the picture issue. I couldn't figure out how to put them in the post originally so I created the link. These should be better. ...
Ruben's user avatar
  • 71
0 votes
1 answer
222 views

Can I use a 45 degree angle when dropping conduit into the ground?

I am running electricity and internet over to a shed in my backyard. When my conduit drops from my wall, it seems like it would be a much easier pull if it transitioned at a 45 degree angle into the ...
blake's user avatar
  • 71
0 votes
1 answer
40 views

Weather Head Re-attachment

Live in Sandy Springs, GA. Just bought an older home and electrical is not up to current code. I had a big branch fall on overhead service line and pull weather head out from attic. Power is still on ...
Cameron's user avatar
-1 votes
1 answer
56 views

How do I find the (2018) IBC spacing requirement for floor ledger bolts?

I simply want to know how many bolts I need to put in per foot, and how they're spaced. The ledgers for each house floor are 2x8s with joists every 1'.
hamstar's user avatar
  • 103
5 votes
1 answer
524 views

Can I connect black iron pipe directly to a gas cooktop?

I am moving into a new home. The kitchen has a separate gas cooktop and gas wall oven. Both were supplied by a half inch black iron pipe terminating at a valve in the bottom of one cabinet. From there,...
Uncle Woody's user avatar
3 votes
2 answers
137 views

Modifying ceiling fan switch for independent fan/light control -- Is it acceptable to run 14/3 alongside existing 14/2?

I'm looking at modifying an existing fan installation setup that is wired in the typical 1980s builder-grade way: The power enters and leaves at the ceiling box, and there is a 14/2 switch loop with ...
smitelli's user avatar
  • 611
0 votes
1 answer
38 views

If i have 2 ground rods at main disconnect can i hit the rebar from the subpanel

I have a 4 pack meter base outside with 3 100 amp disconnects one not being used from there I put 2 ground rods . I have a subpanel in the building since I have 2 ground rods how I understand it is I ...
Allen's user avatar
  • 1
2 votes
4 answers
876 views

How can circuits be prioritized depending on real time demand?

I have a 125a service that’s part of a multifamily setup. I have been told by a licensed electrician contractor that upgrading my service to 200a would likely require $10k+ due to also needing to ...
fernandomrtnz's user avatar
0 votes
2 answers
216 views

Can I run Armorlite 12/2 wire through one side of a wall to the other side?

I have a shared wall from my garage and living room. My breaker panel is located in my garage and is on the shared wall with my garage and living room. I am wanting to add a dedicated 20amp outlet to ...
Guest30's user avatar

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