How to make a junction box -- wire splicing
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- Опубликовано: 1 май 2024
- Making junction boxes for less than 2 dollars (assuming you have the tools and wire nuts/push connectors already) :-) ---This is a re-upload where at the end I address some safety concerns pointed out by viewers.
Non contact voltage tester: www.homedepot.com/p/Southwire...
Ideal 2 port wire connectors: www.lowes.com/pd/IDEAL-In-Sur...
www.homedepot.com/p/IDEAL-Win...
electrical box: www.homedepot.com/p/Carlon-1-...
blank cover: www.lowes.com/pd/Eaton-1G-Jum...
14-2 wire: www.lowes.com/pd/Southwire-Ro...
12-2 wire: www.lowes.com/pd/Romex-SIMpul...
#junctionboxes #junctionbox
0:00 Intro
00:50 Electrical tester
1:50 Finding constant power
3:37 When you can't get any slack-- installing 2 junction boxes.
7:44 Push connectors
9:15 Wire nuts
13:34 When you have slack-- making a single junction box (piece of cake).
16:19 Addressing viewer comments
Disclaimer:
If you choose to imitate, duplicate or copy anything you may have observed in these videos, you do so at your own risk. The creator of this content does not take any responsibility for any action taken as a result of the information or advice on this RUclips channel (or other platforms) and shall not have any liability in respect of any injury or damage that may result. 
Хобби
You need a staple for the cable regardless of the type of box knockouts. And the distance is 8" for a plastic box and 12" for a metal box.
Thank you for pointing that out. 👍🏻 I am pinning this comment.
Its 12" no matter what kind of box it is if you're using romex. Code also does not specify whether its 12" of cable from box to staple so you can actually have a little slack, the staple just has to be 12" or less from the point where the wire enters the box. In reality you should definitely have the staple about 6-8" away, the code just provides the minimum requirement.
Great job at explaining "how to do a junction box"!
I appreciated how you came back and added those important details.
Well done!
Much appreciated. Thanks for watching!
Want to add an outlet to a small room
This video was super helpful for me. Especially the section beginning at the 3:38 mark about installing 2 junction boxes when there's no slack!
There’s a new method you don’t need a second junction box if you don’t want to do all of that. There’s a splice kit with all you need at Home Depot.
@@nickit22 Could you provide a link to that item? Much appreciated
This is the universe's way to remind me to do this. My random splice of wires hanging out in the open has been bothering me lol. Nice video
I’ve watched over the last few months hundreds of these videos and yours is by far the best & easiest to understand. Some guys, & I’m sure they know what they r doing, don’t explain things very well & it’s hard to understand if ur not an electrician. Thanks for ur help, I really appreciate it.
Thank YOU for the kind comment, Bobby!
I really appreciate the updates and overlays. Thanks Dave! If you had run this as scripted and shot, it was a pretty average video, but your care taken to fix words you misspoke, safety features that were glossed over, and even stuff that was entirely forgotten makes it almost a perfect junction box video, from my perspective. It's even *better* than if you somehow wrote and produced it perfectly the first time, because it calls attention to critical and easily-forgotten issues! Keep making "mistakes" like this!
Thanks Tai. You're comment is very much appreciated!
In Oregon I was a laborer on a housing addition. I happened to be alone on site when the electrical inspector came. He looked in the attic and saw romex lay over the top of the ceiling joists and said he was going to fail the inspection due to that. I asked him what he wanted to see to take care of that problem. He said a 2x4 along side of the wires would suffice. When the contractor came back to the site, I relayed that information and rather than calling for the electrification to come back.he had me put in the 2xs and called for another inspection. Which passed.
Yep. Wires must be protected from stomping around.
It’s called a running board
Great job Dave. I was trying to figure this out using just one box, this is far easier and safer than my thought. Knew there was a better & easier way. Gotta love RUclips. Thanks.
Just what I needed, thank you. I'm replacing some sketchy wiring that was spliced on without a junction box or wire nuts
@@davidicousgregorian great idea, I was wondering if I should add some protection!
Very, VERY helpful. Thank you!
Thanks for the video(s) and the clarifications on this new one.... much appreciated.
Thank you for such a detailed video, going to be extending wires and running an additional outlet off a constant power line. This is very informative!
Thanks for the kind comment!
I found this video really clear and helpful! I was not able to get this clarity from Home Depot.
That was a great demonstration! You made it so easy to understand, I think I could put a junction box in myself. Thank you for a great job.
Dude, thank you so much! This is by far one of the greatest tutorial videos on RUclips. Thank you!
Thanks for the kind comment, Don!
In 1963 I was taking a class in a technical high school that was called "Terminal Electric"" where we were taught house wiring. We didn't have wire nuts. We twisted the wire and wrapped them first with rubber tape and then with friction tape. It was years later that I started using wire nuts. It just makes sense to twist the wire. That is the electrical connection the wire nut is insulation for the splice.
great work and you made it very easy for non techs. thanks
Thank very much for your helpful support!
Happy to help!
Perfect..adding an outlet in a few bedrooms, (and removing a stupid amount in the basement) this was my plan to do it this way..just needed affirmation. Great video!
good job answering questions at the end. Thx.
Exactly the information I need right now -- the no slack case. Thanks.
Glad it helped. Thanks for the comment, Mike!
Make sure to test your non contact probe on a known live circuit to make sure it is functioning correctly.
I always do this!
This made me feel more comfortable about tying in a couple outlets
Thanks for the video and the closing update. This was very helpful
Thanks for watching, CarLos!
This is a well-done video and example made it easy to understand! Very helpful, clear and easy to consume the information.
Much appreciated :-)
Dave thanks for this video. Great information!
I always try to put the electrical box above the insulation area so it can be found later. Also you need to staple your new wire on both ends.
I put a new circuit for an inline 10" booster fan in my attic to help get extra A/C air volume to the furthest part of my house. It worked great, but I have another room that needs a boost so I'm adding another fan. I was going to tap into the wire I ran before but there wasn't enough slack to do it with one junction box. I didn't even think about using 2 junction boxes until I watched this video. I was stalled because I was over thinking how to do it to properly to code. This video made me say 💡💡💡"Oh DUH" because every other circuit has numerous junction boxes and splices for all the outlets and lights. Using two junction boxes this close together is quite literally no different. 😅 So thank you kind man, for this video.
Glad it helped. Thanks for watching!
Thanks! I’ve come back to this video more than once. Great video.
Much appreciated!!
It's one of the best videos on utube.. You explain you show you do all at the same time...youre a good teacher. THANK YOU SIR😊
Much appreciated!
Exactly what I was looking for! Great video with tons of info. Thanks!
Glad to hear it. Thanks for watching, Doug!
Dave, thank-you. This is a huge help for us that aren’t electricians. There’s always going to be a critic that is somehow offended by the helpful. Nobody likes them anyway. Great presentation!
Thank YOU for the kind comment!!
GREAT video. Literally doing this over last weekend. 125 year old house. BX is out but no slack. Thanks!!
Thank YOU. All the best on your project!
Exactly the video I was looking for. Thank you
Thanks for watching, James!
Thanks Dave !!
I really like how you show how to do these junction boxes with both wirenuts and pushon connectors(I like the wago connectors), glad to see you use these and I guess this is an acceptable practice?).
Thanks Jim. Yes either way is up to code here. I have to admit though, I’ve had problems with connections when I’ve used push connectors sometimes. Maybe the Wego‘s are better??
I love Wagos. I don't use anything else. As an added bonus you can hot swap with a Wago, or add another wire later on if need be.
This gave me exactly what I needed... thanks!
Ditto on the voltage tester. Just turning off the breaker is not enough. My house has a switch box that has wires from two separate breakers. I would not have known that without a tester.
This is the one I needed, you done good!
Thanks for the good video. This was my plan, but I just wanted to verify. It's a simple solution. I plan on putting an outlet in one of them. Thanks
Enjoyed ur upload. Ur explanations n comments are easy to understand; easy to watch because ur camera angles focuses on the activity; very effective when u show close up shots of the activity; effective ur method of before n after results, etc. Ur camera techniques are RIGHT ON ! Other vids skip many steps on-camera when explaining a DIY project: missing important instructions. Kudos for making corrections or commenting on ur errors. New subscriber because of this upload. Looking forward to learning more on ur next one. Peace
Thanks for the kind comment and for the sub!
This the video I have been looking for.days!!! The others just show connecting to another outlet. Thank you, thank you.
Glad it helped 🙂
Once again! Great camera angle, subtitled corrections and most importantly post production additional info. Keep up the good work!
Much appreciated!
First time to see push connectors. They look easier. Great job, Dave!
They definitely are. Thanks for the comment DW!
Push connectors are easier. There is some debate as to reliability and safety, since the contact are basically touching the wire in a small area. The latest are “Wago lever nuts” which have a handle you push down to make a clamping connection. These cost a bit more, but many electricians think they’re worth it.
SOME NAMES IN THE GAME: WAGO AND IDEAL. THEY BOTH MAKE THESE ....I USED WAGO YEARS AGO. THANKS TO SPARKY, THE SPARKY CHANNEL HERE IN RUclips....
@@TomCee53 I rewired my old 1950 house 4 years ago. I went with Wago. Fast forward and I'm doing a panel swap to get rid of my old glass fuse panel. I saw no signs of arcing or overheat on my Wago connections, and being able to pigtail a few wires inside the panel with Wagos was a cakewalk. They look a lot neater than wire nuts.
Just check local building codes as not all areas accept them.
Very helpful. Thanks
Thanks,that was just what I needed.
Thanks for the video, very helpful! 👍🏼👍🏼
Glad it was helpful!
Thanks for the helpful video
very easy, thorough demonstration.
Thanks!!
Most DIY videos on wiring totally avoid going into detail about splicing, and your video was exactly the info I needed to do my project. I've been looking all day and finally came across what I needed. Thank you!
Great to hear Brandon. Thanks for the comment!
@@FamilyFriendlyDIY Thanks, Dave! If you don't mind, I do have a question for you. My project is installing LED lights in my garage ceiling. There is a power outlet in the ceiling already for the garage opener. My plan was to splice power from that source and run the Romex to a new dimmer switch. From that switch I would run another Romex line to the LED lights to power them and control them on a dimmer. Would that work? Any red flags in that plan? Any advice would be super helpful. Thanks, Dave!
Garage door openers don't require dedicated circuits, so I don't see any flags there, Brandon, and since LEDs draw very little power, I wouldn't imagine you'd be overloading the circuit. Just make sure the gauge of your Romex is sufficient for your breaker. (At least 12 AWG for 20 Amp breaker, and at least 14 AWG for 15 Amp breaker.) All the best on your project!
@@FamilyFriendlyDIY I can't tell you how much I appreciate this, Dave! Thanks so much. I've subscribed to your channel and will spread the word. THANK YOU
@@BrandonRaehl Thanks, Brandon … and I’m glad to help 🙂
Thanks, very neat & efficient video
Very interesting video, thank you.
Great video. Very helpful, detailed 👌. Ready for some projects 😀.
Glad it was helpful!
Well done. Thank you
Thanks for watching!
Thanks...I appreciate it. I actually had trouble finding a good video on this..
Thanks for watching Alecio!
Thank you!
EXCELLENT WORK.
Thanks!
Went with your recommendation with the two boxes, not enough wire to pull used the wagos it went easy. Thank you.
Glad to hear it Francis!
Great style, good information.
Thank you, Jeremy!
Great video. This helped me. Thanks!
Great information! thank you and God bless you.
Thanks for the kind comment Geoff!
Great video! Helped me to install a new ceiling fan in my master.
Glad to hear it!
Thanks for sharing. Great video. Well explained and simple. Thanks so much. You just saved me $200.00 . An electrician was going going to charge me $200.00 for doing this for me.
Glad it helped. Thanks for watching!
👍🏼 very helpful!
Thank you for the video, it was very informative!!!
thanks for watching!
Breakers don't actually trip at 80% load. The code dictates that you shouldn't apply more than 80% load on a circuit (just to be safe). But even if you do go over the 100% rated load it can take many minutes or even hours for a breaker to trip.
Great video.
I prefer metal ones in the attic, but it depends on your situation. If there's expected to be activity/work in the attic or joists are getting covered up by insulation, one wrong step and you could break a plastic box.
Probably why my electrician mounted the boxes on post vs the joist. He also labeled the cover with the device it went to.
Definitely a metal box!
Codes require that boxes in attics be permanently accessible, they cannot be covered with drywall or other surface material. While building codes usually allow junction boxes in attics.
Heck yah, only metal in the attic
I agree metal boxes make sense from a durability, but wow, it takes my more than twice as long fiddling with wire clamps. Since working with metal boxes, I’ve switched to self clamping plastic boxes and my jobs go a lot faster. Also, I’ve never broken a plastic box. So although I know the metal boxes are stronger, I don’t see how it matters other than weird edge cases.
Very well done! Im adding a bathroom fan to my bathroom and I need to tap into power and install a single pole switch but everything is going to plan. Thanks!
All the best on your project!
Thanks! Just finished and everythjng works, no leaks in attic, no shorts and I didnt get electrocuted lol
@@cwl206 Awesome. Glad to hear it!! 😀
Thanks
For me that I’m studying for electrician it great help
Glad to hear!
Excellent & Through .
before u add new wire runs , u have to count everything that old wire feed is wired into , u dont wanna overload the breaker
Thanks.
Dave, felt it was excellent video!!
Great video thx.
Great video
I have found that when twisting 3 or more wires together it is better to use a pair of flat nose vice grips to help hold all the wires even. It makes a lot better and more uniform connection. Try it you will like it.
I don't like vise grips on wire. What I usually do is cut the end a little long, twist, and snip them off even.
Many electricians learn early in their careers to use a pair of lineman pliers for this purpose. It can be tricky when you have three or more 12 gauge wires that have to be spliced but it can be done. I prefer using twist and wire nut splices to using wago or other types of connection as they are less expensive and take up less room in the box.
Under the CEC, JB’s must be accessible, not to be buried in the insulation, perhaps mounting it on an joist support.
I seem to agree with a lot of the other folks. Great video and you make it, well, obviously easy n simple. Thanks!!!!!
I’ll play this while I do it. 😂😂😂
Fantastic video. This is exactly the two example I needed and you made it so clean and easy to understand. Your additional comments and tips were spot on and again taught me a great deal. Thank you! The only follow up question I can think of is accessibilty. You mentioned it, but what does that mean exactly. What if a junction is being added between floors before a ceiling is added or in a wall before the drywall is added? Would an opening have to be left in the ceiling or wall board with a face plate for future access? I am guessing so, but if you could expand on this, that would be great.
Thanks! There are "repair" electrical couplings that can be hidden in walls (I have another controversial video out there on those), but in general, if the connection is for an add-on and not a repair, you have to be able open it up. Some people just use a blank cover (usually metal) and paint it the color of the ceiling or wall. If it's in the floor, I would buy a floor receptacle and cover and wire it so that it would be both a junction box and outlet. Here's the video on the connectors ... but they're getting hard to find: ruclips.net/video/4AvVFTb_wkc/видео.html
Thanks, nice explaining. I learned a lot. Keep it up, brother, 🍻
Thanks Carlos!
It is a good practice to write on the j box cover what that circuit feeds for future reference if you need to troubleshoot
This is golden info right here.. for me atleast 😎
Thanks Dave, great video, saved me a headache.
Mark
Great to hear, Mark!
My back was killing me watching you lean over this 😅 thank God I'm retired.but excellent video
FYI you did mention that one must staple the romex within 12 inches of the J-box in the beginning. You did not specify that it needs to be the type specific for the gauge of wire. Good job. I learned from your video.
It actually needs to be within 8 inches I think, since these boxes don't have built in clamps. Thanks for the input!!
push connectors or wago's are the way to go. simply because it speeds up and IMO simplifies the process
Would something like this work on a water heater? We need to replace our old one and the new one is taller and don't have enough slack and was thinking of installing a junction box to extend the wire to new heater. Just wondering? Nice video on this subject.
OMG! I have looked at least 20 video and then I found yours!!!!! They robbed my ranch house and they took all the electric cables with them, ALL OF THEM! I can't pay $2,000 dls of labor work to reinstall new cables so I'm going to try to do 1 room at a time. May help me God. :\
Homeowners Insurance????
any consensus from other electricians on: if you are tapping into a romex line that has no slack. what about using 1 romex splice kit and 1 junction box instead of two junction boxes? Is that also a reasonable or workable approach or not? thnx
The pigtail he made to make both boxes hot should've been ran through the joists with a hole drilled to run the wire through. This protects the romex from anyone who decides to drill or cut through the building material. I understand his video is for demonstration purposes. I just figured I'd add a quick note here
So I was trying to do something like this I located the hot wire the constant. Older wiring no ground. And it's a junction for two plugs and a switch, which cuts power to those plugs. I wire nutted all the black and all the white together and pig tailed a black and white to the plug. But it tripped the breaker
Great Job 😉👍🏽⚡️
Thanks!
Great presentation thanks
Thanks for watching :-)
Hello, good video
Can you share what tester is used in the video, what voltage
Thanks
I want to add outlets to a wall without any. I'm fine with wiring, but I'm reluctant to go in our attic, because we have birds living in it.
Also, years ago we had a "weatherization" group working on our house and they blocked off our attic access. When you pull the door/latter down there are walls surrounding it. The only way through is to take a reciprocating saw to it.
😳
I'm in the process of having some electrical wiring upgrades. One project involves eliminating a bedroom closet subpanel, but the electricians are talking about making it a junction box. I have no clue what they're talking about or what it would look like.
Great video 👍
Thanks!
So glad I watched this first.