How To Install a 240 Volt Outlet | Electric Car Charging
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- Опубліковано 27 тра 2024
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Safety First! Make sure you have the knowledge and experience needed prior to taking on this project. This video will cover all the steps needed to install a 240 Volt 50 Amp (NEMA 14-50) Outlet. This project is becoming more common for homeowners as the adoption of electric cars is increasing rapidly.
Joel's UA-cam Channel (Electric Pro Academy)
/ @electricproacademy
Parts List
240 V NEMA 14-50 Outlet: amzn.to/3AJMKFc
4" Square Electrical Box: amzn.to/2XdAeQu
4" Square Box Mud Ring (1/2"): amzn.to/3lHQlPF
NEMA 14-50 Faceplate: amzn.to/3vexHlI
Drywall Anchors: amzn.to/3BQjlKY
3/4" LB Conduit Body: amzn.to/3lKvJXf
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50 Amp Square D Breaker (Type QO): amzn.to/3BJDxy3
6/3 Romex Wire: amzn.to/3oYSVD4
Chapters
0:00 Intro
0:45 Project Overview
5:58 Parts Overview
10:23 Fishing New Wire Through A Wall Cavity
14:26 Cutting Hole In Drywall For Conduit Body
16:37 Installing Conduit Run
25:44 Pulling Wire Through Conduit
36:46 Installing 220V Outlet In Electrical Box
42:14 Final Wire Connections At Electrical Panel
46:57 Final Test and Validation Of The System
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Enjoyed this well presented video. As a master electrician in Michigan for 40 years I do have a couple of comments.
First I would have used a 4 square box on the wall above panel, you would have eliminated a lot of stress. Two, on the outlet I think the sharp corners of the flush use plate may be just waiting for someone to cut themselves, a raised cover would have been the correct one.
Also when working with a metal fish tape in a panel is always dangerous. A no conducive fish rod would have been my first choice, if not available I would have stuffed a cardboard guard inside the panel.
Safety first !
thanks for the tips.
As a previous electrician I agree with you.
This is great information, thank you 🙏
My father was a master electrician here in Michigan as well (IBEW 692.) There were a few tense moments in this video until I remembered that if this guy would have made contact he probably wouldn’t have been “available” to finish this project 😁
Still would have covered the breakers with cardboard!
The way these videos are coming leads me to believe you are working as an apprentice electrician and posting what you learned that day or week
DIY audience.
I was able to install about 90 feet of 6/3 wire using your video as a reference guide and saved myself thousands of dollars. I just wanted to say thank you for the clear, and easy to understand video.
Anyone thinking about doing this project can absolutely do it, just don't cut corners. Make sure you get a commercial grade Outlet like he said in the beginning of the video, and based on what iv read it sounds like a cheap torque screwdriver will be helpful to make sure those terminals don't ever come lose and cause problems in the future.
I've already install a 240 and this lines up with what I've done. Excellent video. Thank you for taking the time to do it.
Especially for DIY’ers - if the appliance end is already completed and you are wiring into panel, ALWAYS check for continuity (short) between the cables before you land them in the panel. Once landed, it’s not easy to check. If you get continuity between any pair of wires, there is a short and you must not land any wires.
Good advice.
There are old electricians and their are bold electricians. Not too many old and bold electricians. I don't work on live distribution boxes if I can possibly avoid it. Being a woman, I don't have to compensate for 'shortcomings' by taking unnecessary risks.
Great video, cute sparky. I believe 3/4" conduit is too small for current code on #6, I'd have gone up to 1" and lube is your friend.
I’m trying to figure out why he ran 6-3 through conduit - couldn’t he have saved a lot of time and money by running individual THHN/THWN wires? Isn’t the shielding of the 6-3 overkill? And as you mentioned - doesn’t he want to use 1 inch conduit based on the fill space of the 6-3? What am I missing?
Yea fiberglass fish tape for me I used 32 mm 1 and 1/4 in 12th of a kings foot measurements and put in a draw wire for possible additional wiring without ripping it all out or running alongside a few dollars up front 100s saved later.
Too many things to comment on. Not what I would consider a pro job. Retired master electrician. Never worked in a place that would allow a three or four inch chase nipple in the top of the panel and allow all the circuits to run through it. Amazing. Also, if you're going to work on a live panel (And I recommend a DIYer never do such a thing), take a piece of cardboard and tape it over the panel on three sides allowing just enough room to push the top of the cardboard into the panel so that you can insert your fish tape through the top knockout. This should keep you from contacting any live circuits when that fish tape accidentally flops around. Nowadays, they actually have fiberglass fish tapes which would be a lot safer for this job. I also spent 20 years as a paramedic and took countless DIYers to the ER for attempting jobs like this on live panels. JMO.
Not a pro job. Just because it works that doesn't mean it's done correctly, lots of violations.
Great video! I learned something new with the freakishly long needle nose plier tool. I'm a DIYer, but in the past, I've used coat hangers and all types of crap to get that wire out. Good to know that tool exists. If it's less than $50, I'll buy it.
Personally, I wouldn't use drywall anchors to hold such a heavy plug. Then again, I'm one of those people who overdoes things. I would have reinforced the outlet with wood supports. So I would have cut out the sheetrock, added wood studs, and added the sheetrock back and re-taped it.
Lastly, and most importantly, the outlet you choose if of CRITICAL IMPORTANCE!!! While you can go to any big box store and pick up a $9 NEMA 50 amp plug (the kind used for electric dryers) DO NOT USE THOSE! Those are not designed specifically to have current running through them for hours and hours and hours and there have been many stories of those melting and worse, starting fires. Get the industrial kind, like Hubbell. As of me writing this, they're $80, so they're not cheap. But if you're going to spend $50K (or more) on an EV, you're already saving money by doing the job yourself. Don't have your house burn down over a few bucks.
*Appears that Joel is installing a Hubbell 9450A, 50A, NEMA 14-50R receptacle. This is an industrial grade piece as FedSpec grade is expensive overkill. This is better than good for extended duty-cycle home use. $90 on Amazon. Do it once, do it right and be secure in the knowledge you did so. Your clue is B00IPBMUKY. Cheers!*
The reason why he had so much trouble pulling is that the EMT he used (3/4 inch) was undersized for the Romex he used (6-3 w/gnd.) 2020 NEC Chapter 9, Table 1 and Chapter 9, Item 9 requires 53% maximum fill for cable in conduit or tubing, which would be exceeded in his situation. So 1 inch EMT, or individual THHN's where 40% fill can be used.
Thanks for the feedback James, appreciate the help.
@@EverydayHomeRepairs I tried what James said and it electrocuted my balls off. LOL. Thanks for making the video
What's really annoying is hooking up a spa disconnect with 6/3 in a tiny ass box.
Exactly
@@fernandoprieto2865 This is exactly why some people should just hire some one!
Great video. My 2 cents as a master electrician..... 4 square above panel instead of LL/LR/LL, fiberglass fish rod for wall fish, raised industrial cover for receptacle, and metallic outlet box must be bonded as the conduit run is not continuous to panel.
This job would look different if I did it too. However, did he violate code anywhere? I question if the box is grounded iaw the nec.
Just found this one.....but 406.11 (recepticles) connecting the ground terminal to the box.....250.146.(A). Roecepticle ground term to box, surface mounted., the yoke to box connection shall provide the effective ground path. So the box is grounded as per 314.4?
The only possible violation I can see is 625.54, which requires a gfci breaker for car charging (ELECTRIC VEHICLE SERVICE EQUIPMENT) recepticles.
I only deem it possible because of 90.4 and not enough information from ahj.
Please not 625.54 the gfci requirement ...car charging was not changed in 2020 so maybe for 2017 or earlier.
Now, I consider myself an "A-" guy.....good but not perfect. So if I missed a concern please let me know. And if I have a reference wrong, yeah, give that written smack down.
@@keithharrington8715 I think he did a good job, but to answer your question yes. The 4x4 outlet box utilized for the receceptacle would be required to be bonded to be code compliant. A ground stinger should have been installed into the 4x4 box, which would bond the box, attached metallic conduit, fittings, and metallic receptacle cover to prevent them from becoming energized.
@@keithharrington8715(IMHO) The articles you are referring to allow the receptacle to be grounded via its yoke in direct connection to the box. Not vice versa. Not good practice either way and would be highly frowned upon by ahj if you tried to use this shortcut.
@@rodneyparker9912 sir, I would have attached the egc with a wire to the box and recepticle (pigtailed it). However, 250.146 says you can skip the bonding jumper if you do 250.146 A, B, C, or D.
It looks like here he followed (A).
@@rodneyparker9912 thanks Rodney. Looks like you are right. Did some better reading and The yoke can ground the recepticle to the box connected to the egc..
Thank you so much for this great video. I was able to install my 14-50 NEMA receptacle very easy thanks to your detailed instructions and materials guide. Again thank you so much for sharing your knowledge with the common “Do it yourselfer!” 😊
I was a journeyman in the '60's, but now I see so many changes...so this was very informative! SUBSCRIBED!
I've only done this once before . I put in a outlet in for my RV at a friend's house. 4 pole 240 volts. Now I'm getting ready to run another one where I park my RV at home. And I've been looking for a video to confirm the panel connections.
You do a great job explaining the whole process, thank you. I enjoyed it.
Best of luck on the project. I need an RV 😁
That metal cover plate on the receptacle has sharp corners that will slice open a hand. Get a smooth galvanized cover plate that follows the shape of the box. Way more safe. Great vid!
Damn it, you guys need to do this all over again, for those homeowners who don't have panels in enclosed garages, but have them often on the side of the house a good
35 feet to 50 feet away from the driveway !!!
I agree there isn't any videos out there running 6 gage from the side of the house panel either up from the roof through the sky lol back down to the garage or underground from the side to a garage that is 50 feet away.Most vids are like I bought my 2 feet of Romex at $2 lol you an I are like in the $400 dollar range. anyways The dude that made this video is awesome I love it and it made sense for us DIYers thank you brother, keep it up.
Guys and gals listen to this man when he says "buy an industrial rated outlet" buy a hubbel not the cheap 12 dollar one from.big box!!! Those are good for dryers and such not a constant 50 amp draw for hours! I know the hubbel is 50 bucks more but I've seen my welders melt the cheap ones and your EV is drawing more then my welders and for longer. Don't die in your sleep over 50 bucks.
Excellent video
This should really be pinned. I'm surprised they installed an Amazon speical crap-o 5000. Hubble or bust.
It was great video. There are some recommendations:
- Using glows and safety glasses are always better, especially when you work in a live panel. As seen in viodeo, even you as a professional can cut your hand. I understand you are a professional but similarly you could get shock.
-You forgot to use plastic conduit bushings at the termination locations.
-it is better to mark the high of box and cut your conduit accordingly. It can give a better result for box the high, and reduce risk of miscalculations.
-Better to kill the power before start, since your fish teyp is not the plastic one, you could make a short-circuit.
Thank you for the video and fishing tips.
I though plastic bushings are only required in FMC/AC/BX and not EMT/RMC
I was taught that it is against code to install Romeo in conduit, besides it’s so hard to pull it through conduit. Stranded thhn wire is the best conductors for this project. You would need to tape the portion every five or six inches that go down the wall unless you can purchase pre twisted wire in the three conductor and size you need. Plus you should have used an industrial cover for the receptacle. It matches the 4 sqr. Box perfectly. The cover you used is for a flush mount.
Who ever taught you it was against code, should not be teaching. Get a code book look it up for your self. 334 covers NM cable to help you out
I"m an EE who worked as an electricians helper several summer both before and during college. You can't know too much and it's great to watch a professional again as solar projects are coming up just around the corner.
You are an amazing teacher and very good at speaking about wiring to laymen, like myself. There are plenty of installers out there, less true professionals, and even less that know how to teach. Thank you for the video. I'll probably never do this install by myself for my Model Y, but it's cool to be more informed before hiring someone to do it for me.
Hubble also makes the Bryant 14-50 Nema receptacle. The Hubble cost $135 on Amazon and the Bryant cost $46 at Grainger(Model: 9450FR). Exact same product, both made by Hubble.
Great video! I always use non-conductive fish tape, especially when working near live circuits. Many job sites require it.
That's a great idea! I'll be purchasing one
The most professional teaching video I have watched. Well thought out and executed. Great, upbeat presentation. Fabulous job.
There is more where that came from! Joel has his own channel at ua-cam.com/users/electricproacademy and puts out a TON of great stuff.
These outlets are also terrific for powering large single phase air compressors and welders, and rotary phase converters to run things like used three phase industrial air compressors, welders etc depending on size. DIYers with patience can wallow in quality used industrial equipment for same or less money than consumer crap but having that large single phase outlet (or more than one since parts are cheap and you're in there anyway!) is key. I even added them to my rented house (with landlord permission, he was also my best friend) and took them when I moved.
Look into the many products including cords, splitters and other hardware used to power RVs from these outlets. I promise it will be useful info if you DIY.
Related note re: "cool stuff powered by outlets": I put my horizontal tank compressors and my welders on dollies I fabbed to use scaffolding casters (which just slide into a tube and are magnificent, get the round shank style) for easy handling. If you rent and put everything heavy on wheels the rest of your life gets impressively easier. You eventually need to move most of your stuff so if you make that low effort in the beginning you never sweat again.
Fantastic tutorial ! I learned a lot, took many many notes. Stopped , replayed , restarted so many times I lost count . I didn't want to miss anything. I spent over 2 hours watching the 48 min. video , couldn't get enough. Thank you very much. I will be assisting my brother who is an electrician in installing an electric car charging station in my house and I didn't want to look like a dope. And thanks for NOT having any loud distracting music in the background as so many other You Tubers do.
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We did it, WE DID IT, Yey! Yes, after watching this video twice, we made some notes and picked parts we needed from the local store (not big box stores) to support the local economy, and we executed this task in under 3 hrs, ran about 45feet wire from the breaker box in the basement to the garage wall. Excellent video, pay attention to instructions and you'll be surprised how easy this task becomes. We followed all codes along the way and yes, that 90 degree L-box at the wall was a tough one to route wires through but we did it. Thank you.
If you followed this video in no way did you follow the code. Multiple violations in this video.
Attaching the power wires to the unattached breaker, and then snapping the breaker into the box, is a slightly easier way to proceed. Anyway thanks for doing it LIVE! (Ha ha ha)🙂
I am a diy who has worked on a live panel. As an EE, I have a lot of respect for what is going on it there and take my time thinking through each move before acting. The only time I got stung was while neatly routing the new wires when I touched a hot wire the "pro" who installed the panel had nicked. BTW, that 120VAC sting was nothing like the 300VDC sting I got on my little finger trying to brace a scope probe on a small PCB the size of my fist. I was concentrating on troubleshooting the 5V and 15V circuits on the PCB and totally forgot about the small 300V circuit. It isn't the voltage that kills, you can be electrocuted with just 0.040 Amps of current.
I stupidly shorted the 340VDC leads from my 17.5 kWh battery on my home backup system. Exploded in my hands, threw me across the garage and sent me to the emergency room for the afternoon with 2nd and 3rd degree burns. This is not a joke. The thing is, installing these systems in my hardware lab was my job for over a decade. I was installing mine in my home and relaxed on the safety procedures and well I described the results. Safety first.
As a handyman when I pull any cable using the ground wire, I cut the conductors (Black/Red/White) so they are staggered (different lengths) before taping them to the snake. This gives them a more gradual entry into the conduit.
As a handyman you shouldn't be pulling any wires in anything unless it's your own house. As a licensed electrician I'm constantly fixing handyman specials. You may be the exception to the rule but generally handyman think they know but don't know Jack. Codes updated every 3 years and it's a four-year apprenticeship just to get a journeyman license. Electricity is no joke and should be taken very seriously poor jobs can risk people's lives and safety not to mention property damage. Anybody can pull wire through a piece of conduit but do they know how to derate ,do they know how to do load calculations do they know how to make sure the breakers the right size to protect the wire? there are so many factors that one wouldn't think about.
@@rogerdodger5886 your smart 😢
This was a fun video, and I actually found it more enjoyable than most of Joel's videos. It seemed more straightforward with less joking around. It also explained a lot more that I think is sometimes skipped over with his usual videos, maybe because this was intended for DIYers.
Good video. I just started working on some DIY electrical work at home. I recently came across your channel and Joel's. They're very easy to watch, and very detailed.
This was a fantastic video to teach a relative newbie like me how to install a 240V NEMA 15-50 plug to charge my brand new EV. This was instrumental in making me feel like it was a job I could tackle. Everything turned out great - thank you!
It’s NEMA 14-50R outlet.
Make sure you shut the power off
When working in a live panel with or without a fish tape ( finer glass ) I always
Cover with cardboard . In this case I would push the card board in on the top right
in case I let locknut fall - If would slide out onto the floor . I also squirt some lube in
end of the EMT as I install - much easier to pull on long runs and around bends.
Not bad advice, thanks for the feedback
Make sure you use that safety cardboard.
Ive never watched a more informative, professional, extremely well explained youtube channel. Thank you for all your work!
Thank you for this video! I followed it step by step, and made use of pretty much every tip and trick mentioned. And now I am charging my new electric car in my garage. This video provided exactly the level of detail I needed to do the install.
625.54 Ground-Fault Circuit-Interrupter Protection for Personnel.
In addition to the requirements in 210.8, all receptacles installed for the connection of electric vehicle charging shall have ground-fault circuit-interrupter protection for personnel.
This would require a GFCI breaker?
@@johndebell2207 According to the National Electric Code, yes. Any receptacle in your garage up to 50 amp needs GFCI protection.
I have never seen a GFCI for a washing machine nor a nema 14-50 outlet. Someone is making stuff up.
@@FranklySpeaking73 It’s called a breaker when it’s above 20 amps. Washing machines have been GFCI required for years.
How can the conduit system be part of the ground system when it is not continuous to the panel?
Some good information...I guess. I would never pull NM through conduit. Code or no code. To keep it clean above the panel I would use a 411 box. It is ok to make joints with wires. I know some will cry that it is a potential trouble spot but not if you do it properly. NM in wall then THHN in the conduit. The condulet at the top of the wall is more work than is necessary. Well made video! I like the effort the young man made to explain things to DIYers.
I love when videos are so detailed and well done. It gives all the steps and details you need to realize you need to hire a professional.
I had a pro install my charger. I cried a little when I had to pay. But it was installed and it is right and years later never a problem.
This was detailed, but there were still some important points left out and this won't pass inspection.
@@nilpowhat specifically wouldn't pass inspection? And where(country/state)?
@@AJ-ri5ee North America. Specifically in the US it won't pass NFPA 70. Pretty sure it doesn't pass in Canada either.
@@nilpoOk, but what part?
As a union electrician western suburbs of Chicago this is nuts. First off go to Harbor Freight and buy a cheap fish stick set. Next is location dependent . We don't use rope a dope here everything is emt. For all the work you did fishing that wall it would have been faster to make a nice easy offset out the top of the panel and surface mount the whole thing. A little drywall patch and your done. The romex through the pipe was crazy, just buy some wire and push it . I'm not sure if that is even code. I like the idea of EV cars and I know people are shocked (no pun intended) at the cost of 240 install but some things regular folk just shouldn't mess with. Just last month I got tagged doing a friend a favor, Who knew this guys father 40 years ago switched the white wires for the basement lights. Again this was emt and thhn wire. My fault for not tick testing first.
Thank you, im from Chicago as well and I thought I was going crazy for telling him to just cut the damn drywall and make the full conduit connection from the beginning to the end. Drywall and some patch work isnt that hard. This is the lazy way to do it and not to code (maybe in his area but not everywhere thats for sure). Disliked video for the lazy work.
rob m knows whats up
Amazing attention to detail and positive attitude here. True mark of a great leader.
Pro tip: when fishing wire in a live panel, put a large piece of cardboard inside to cover up all the breakers and feeders. Also wear safety glasses at all times. Where I am, we would not put Romex inside conduit. Run stranded wire and conduit all the way. A “telephone 90” fitting can be used to get into the panel easily.
Good tips, both. Only a DIYer, but I thought running Romex through a conduit was a no-no, due to its inability to dissipate heat
Wow look at all those home runs running through that center knock out!!!
I don't think I would have done it that way, but it got approved. Looks like the electrician was in a hurry.
I used to work as an electrician’s assistant. This was a trip down memory lane.
I seem to recall we had to use non-romex when wiring with conduit. Does anyone else remember the same? Also I hated bending the conduits almost as much as running that heavy wire. Kudos to you.
Yeah, now days we usually use stranded or solid copper THHN/THWN insulated. We generally don't run cables inside of EMT, only single conductors (unless we are sleeving a cable for protection). The guy in this video did a lot of wrong things, TBH.
Most ahj will allow it but you have to account for the outer jacket as fill Also it's sloppy hacky and usually a waste of money over buying a 250 foot spool. My ahj wld have had me strip romex from lb to outlet and required a stub with a romex to emt connecter from lb to panel with a bushing on that connecter at the panel if not a grounding bushing as well lol
@@wizard3z868 The lack of proper bonding/grounding on the EMT in this installation is a shock hazard. To me that was the most unprofessional and hazardous part of this installation. I am sure he does it wrong all the time, too. Lol
@@illestofdemall13 my ahj would have had me tie in the ground wire of romex to a bond bushing at panel than a bounding at metal lb also (than I wld have had to strip all the romex from lb to the outlet my ahj dosent like romex in emt). I'm sure he bounded at box and outlet thus making all the metal conduit grounded
@@wizard3z868 Bond bushings would not be required for this installation, however the Code does require the equipment grounding conductor to be connected to the outlet box, not the receptacle. Also, Except at terminations, removing the sheath from nonmetallic cable is not permitted in the Code.
Very good video & illustration of this electric installation. The pros were able to identify several areas that need to be considered with this electric project to meet a safe NEC installation. Also, when working in or around energized equipment, OSHA, mandates PPE equipment to be worn for added safety. Always best to de-energize equipment when working in or around electric equipment. Otherwise, a very educational video!
You're right! Safety hasn't been my strong suite (neither has spelling 🙂)
If you have an unfinished area like a garage, receptacles need to GFCI protected. For 240V, you can get a 2-pole GFCI breaker
One think I never do is run a metal fish in a live panel. Having been in a arc flash myself and seen others you learn. I see someone said they done it a thousand times. He has been lucky and maybe 1001 will make him smarter. Rest of the video was good but also agree you need to jumper your ground wire to the box.
Circuit Breaker, I have done it many times, but I'm a pro.
@john alt yes indeed you may think you're a pro but accidents do happen. For an instructional video it should of been a fiber glass or nylon snake and or the metal snake should of been tape up at least 8FT but that's bit annoying to do. There is so many OSHA rules and safety we all have to follow in NY or other states.
Not a pro, but I don’t think you want to bond neutral to earth on sub panels. Only one bond per building.
I was going to said that too, they sell some fiberglass fish rods that are great for that , since you know when those metal fish tapes move aré incontrolable, the rest I have no complaint
Ohh yeah I forgot the receptacle box needs a # 10 pigtail and spliced and get another pigtail for the receptacle. Also an industrial cover would look better since is surface mounted
Folks, 1 neutral wire per connection point. DO NOT share the screw position. 1 neutral. 2 grounds.
After the 1st point of disconnect, you must separate the neutrals from the grounds. (typically a sub panel).
If this is being inspected (which it probably isn't going to be) don't let an inspector see a ground and neutral on one screw or 2 neutrals.
Also, not exactly necessary, but ground the receptacle box with a pigtail. The emt/box/recep all bonds back to the panel, but it is good practice to also bond the box by using a copper crimp to a pigtail and then to the receptacle. Old schoolers will tell you don't bother, you tell them to f off.
Would the potential hazard of an ungrounded recep. box be if it were ever to be energized due to a short to the hot somehow, then potentially someone could make contact with the box and get zooted? So if the recep box is grounded, if it ever gets energized by the hot wire fraying and making contact with it, what happens? Does it just cause the circuit breaker to trip? What if it's only a tiny little fray wire and it doesn't cause a massive current draw? could it potentially cause localized heating of a wooden stud and fire? please fill me in im curious as grounds were never really explained all that well as to how they actually worked to provide safety, other than tripping a GFCI on a bathroom circuit or something, but what about circuits without GFCI on them?
@@localbroadcast Obligatory "I am not an electrician". There is quite possibly some nuance I've missed, but the broad strokes should be reliable.
Yes, that's the main reason for any and all metalwork enclosing high voltage electrical wiring to be grounded and or bonded - if any part of that exposed metalwork comes into contact with a live conductor, the breaker will trip from overcurrent (or any other present protections such as Arc Fault or Ground Fault protections if present on the breaker and applicable to the specific fault), thus preventing the metalwork from *staying* live for more than a split second and simultaneously drawing attention to the fault by preventing the circuit from working (live exposed metal will eventually zap *someone*, it's just a matter of time) . The only worse case scenario than silently live exposed metal is an actual fire.
As to the other part of the question, that's an important reason to take the grounding connections every bit as seriously as the live ones: So long as the grounding connection is made properly and in good condition, the impedance and resistance of that path will be extremely low - hence any ground fault from a live conductor will cause a *massive* amount of current to flow. This ensures that the breaker trips immediately, before significant heating of the branch wiring can occur. If you have a high-resistance connection, that connection will heat up. If it's high resistance *enough* to prevent a breaker trip, it could indeed potentially create a fire - though I would think that that happens a lot more commonly on loose connections on the live and neutral conductors since you'd have a load completing the circuit instead of a short circuit, meaning the circuit resistance and impedance are added to the load, so you don't have a massive current flow but still have heating at the poor connection. If you have a tiny strand of live wire contacting a ground, you've still got a low-resistance and low-impedance path for current to flow on 99% of that circuit, and maybe a couple ohms at absolute most between the tiny strand and whatever it's touching.... that strand of wire just became a fuse. Either the strand blows clear, the breaker pops, or both in the vast, vast majority of cases. Even a 5 ohm resistance on a short circuit at 120V will draw 24A for 2.88Kw of heat produced at the fault - if your strand is tiny enough and badly connected enough to create 5 ohms, it definitely can't handle nearly 3000 watts of heat without melting clear in extremely short order.
In the electrical trade it is very hard to give absolutes because each piece is designed for its own special use.
Generally, one screw-one wire.
Breakers use heat, magnetism, or electronics to detect the current draw and open the breaker. A short circuit, like cutting a cable a cable with wire cutters can result in currents near 5,000 amps in that small instant of time the breaker takes to trip.. Yes, even #14 wire nears 5,000 amps. (Electrical welding of the cutters or burning some steel away.)
GFCI's use electronic circuits to detect the current going out and coming back through the gcfi. When the difference gets to about 5 mAmps,, it trips to prevent current from going through the gfci and down an unknown path. This should protect people and equipment.
Because their functions are different, someone cutting a live cable down stream (a load on gfci) will not trip the gfci, the breaker will. Most gfci's will then trip on "no power" and require they be reset also, after the breaker is re-shut, after power is restored.
In a normal scenario when the box is grounded, any connection with the hot wire will again cause thousands of amps to shoot through the breaker and trip it.(should it get only close enough to arc, a standard breaker may not open, thus AFCI breakers.)
The nec still lists emt conduit as an acceptable equipment ground. However, in this case, the conduit does not run back to the panel and would not be effective as a ground.
Now things get interesting. The nec does allow grounding of the box by connecting the equipment ground to the recepticle and that connection through the mounting metal strap creates an effective ground path.
Hope this gets your question answered. If not, let me know. Maybe a different explanation can be given.
@@keithharrington8715 if someone cuts Romex, chances are they'll hit ground before they hit neutral if cutting front the hot side first. This means some current going back on ground. If it's GFCI protected in that spot, it'll pop the GFCI. Which is why I like GFCI breakers at times.
@@adamplummer2190 I would like to exqmine what you are saying here.
First, the NEC requires rounds ND neutrals be eectrically connected at the first means of disconnect for the service (main panel) ......making them about electrically the same.
Now, let's try n some numbers.....
14 awg wire has a resistance of about 2.5 ohms per every though and feet. So a 50 foot run (out + back) should have a resistance of about (100 ft) or 0.5 ohms. So, our circuit resistance from the breaker to the cut spot is about one half ohm. Say zero for the gfci and the wire cutters are also zero.
So our total circuit resistance is 0.5 ohms when the cutter hit metal.
Current is. I=E/R
I = 12 vac / 0.5 ohm.
I = 240 amps seen on your 15 amp breaker protecting the gfic.
Since both the breaker and the gfci both see this value at the exqct same time.....I do not think it matters which one trips first. I know the gfci will trip on a loss of power when the breaker trips.
Now, I did the simple math here.....no impedance or vectors for the AC voltage, got the ohm value in Google, and used rms voltage not peak to peak.
If you find a problem or error I made please let me know.
If you need code sections let me know. Ch 9 table 8 might have a slightly different number, I was lazy wit Google.
Again, I calculate over 200 amps through your 15 amp breaker the instant the cutters hit copper.
Awesome video! Thank-you so much for sharing your skills in Electrical installs. I picked up on several of your tips (at least 10) that you can't find in any books. I've pulled wire thru conduit and made the work much harder than necessary - with your tips, I'm actually looking forward to the next adventure with cable and conduit. Again, Thanks
Amaà of of
I particular liked the bending of the wire to get into the breaker.....
Thanks for being candid. It makes everyone safer including you.
I have done DIY with electrical for 40 years or more, even rewiring a house with a new breaker box in a house out in the country. I am VERY impressed with how thorough and careful with your explanations were. Thank you for this. I do indeed plan to get a Tesla box, but I will probably pay for that to be done. It will be a brand new house and a brand new car. I will not DIY that one...
He really was so thorough…I had to subscribe! I’m an electrician apprentice right now, and at times we’re on a job for months only putting up lights, so this was a great overall refresher on running wire in EMT, fishing wire, plus some pro tips I’ve heard of before but had forgotten about!
Why wouldn’t you DIY this with your experience?
Come on you can do it, a lot of great tips in the comment section on how this could've been a much smoother installation, like using a 4s box instead of the LB conduit, and transitioning through the wall to the panel with flexible metal conduit or better yet using MC cable and avoiding completely the used of the Romex cable, even installing a 5s box with an industrial raise cover for the receptacle.
@@triguer1 What do you mean with " 4s box instead" ?
@@yvesn58 4s box is a metal box that will be used as a junction box, just like the one he used to put the plug. He should've used one of those instead of the LB. He got into a nightmare trying to run that cable through the LB. There are fittings to connect the wire from the back of the 4s box down to the panel using MC cable, Flex conduit, or even the same Romex cable he used.
Very well done installation! For the benefit of the viewers, I must say that when I cut a conduit, I tape all around it at the desired position of the cut (with masking tape or paint edge tape). I then cut along the tape edge with a hack saw, while rotating the conduit at regular intervals. This keeps the cut always visible on the upper side of the conduit. After the cut is completed, I then remove the tape. This ensures that the cut itself is perfectly perpendicular to the edge of the conduit. This method is particularly useful when cutting large diameter pipes, such as for plumbing drain pipes. 2022/01/11. Ontario, Canada.
You do that on a union job, you won't be employed very long,
@@jakeo2600 Do that on any job and you'll be the butt of a lot of jokes.
If you are an electrical pro. Please review the comments here carefully.
I only see two possible NEC violations and have worked to provide references below.
1. No ground to the box with the receptacle.
2. Gfci protection for the circut.
NEC 625.54 (EVSE) requires gfci receptacle protection for car chargers. This is some time before the 2020 code cycle.
NEC 210.8 in the 2020 code requires gfci protection for 250 vac receptacles in the garage. If he is under an earlier code, all is okay is it is not for car charging.
I watched this video a few times and without any electrical experience I was able to do it in 6 hours. Instead of running Romex throughout I wired individual wires as they were easier (they are lubed) and then instead of the conduit box I used the same deep square box and connected Romex into the dry wall - they also have a follow up video with errors. Also don't buy anything from amazon except the Industrial 14-50 outlet (Bryant and Hubble are the same and Bryant is cheaper) - local hardware store is cheaper Enjoy, Be Safe and Happy Level 2 Charging! Thank you!
Awesome instructions! He was very thorough and I learned some things. And like a true electrician, he never mentioned cleaning up 😅
That's hilarious! I've tried to improve regarding specifying clean up in my vids 🙂
🤣 haha yasssssss
Excellent video, I didn't imagine myself watching this in one sitting but Joel's calm teaching style and work flow is mesmerizing to watch. Thanks so much for the collaboration, Scott and Joel! You guys both put out quality, well-articulated content. Also subscribed to Joel!
Metal in a hot panel..... NO!!! WORST MISTAKE
He has leadership tone and patience something I really like to embrace with my crew . Win win .
I also felt this video was very informative. I pretty much ignore the "let me see what I can criticize" people. 😅 If they posted a video, there's be others criticizing their procedures, have not doubt.
“mesmerizing”? I was waiting for the spark and lights out when he was letting that fish tape just flip around in the panel. 😬
This guy is a hack electrician, die cast coupling, steel connector, mixing type of connectors, WRONG next it’s a 3/8” offset not 1/2” offset. If this guy new his sheet he wouldn’t run 6/3 romex through an LB, ROMEX IN A CONDUIT IS ALSO WRONG, DIY just have the guy at HD cut individual wire to your length, 40’ feet of conduit eguals 3- 46’ of #6 and 46’ of #10 green, individual wire is more cost effective than romex
Looks good, one thing, you could’ve used a j box and just put an extension then ran you’re conduit. Again 1000 ways to skin a cat but i think that would have made it easier for your install. 2. Your box or conduit isn’t grounded, you would need to ground the box with a pigtail in the case for whatever reason the box became energized you want a path to ground.
You can’t feed a 50A continuous load with a 50A circuit breaker. Most circuit breakers, including the Square D QO breakers shown in this video, are only rated for 80% duty. This means that even though the 50A circuit breaker will supply 50A, it is not meant for supplying that much current for 3 hours or more. This setup would, however, be sufficient for supplying 40A continuously since 50A breaker x 0.8 = 40A. I’m sure this is what you meant.
Most home EV chargers are 40A or less.
The "some box's" that have the neutral and ground bus's separated, are called Sub Panels!
!
hands down one of the best tutorials on UA-cam. It was a random video I selected. I am not making an installation. I simply enjoy learning visually. Your teaching is superb!
In general your main panel the grounds and neutrals are bonded - if a sub panel they must be separated. In a house there is only ONE location (at the main panel) where neutrals and ground are connected together and attached to a grounding electrode (like a ground rod)
Great vid, thank you so much. Pro electrical engineering tip (Note: we often work in an EE lab with both low and high voltage open equipment with lots of possibility to create a short circuit with any metal objects that might get inside the equipment we are testing) : engineers must remove all conductive jewelry!
Very good advice! Years ago, an electrician friend of my parents died when a ring he was wearing touched a heavy load. Watching the guy in this video was giving me the heebee jeebees because it you get careless for just a split second you can get killed. Much better off to kill the power instead of yourself.
From one pro to another.... Great video. Popped up in my UA-cam auto play while I was doing chores. Couldn't turn it off. Well done. You really should be teaching in a local trade school if you're not already doing that. Outstanding communication skills.
Then why his wiring look like that.
No he should not, and you are not an electrician, or just the use of romex in EMT, should have had you pulling your hair out!
Hi, I used your video to install a NEMA outlet for my EV. It was super helpful and I can’t believe I was able to do it myself. Thank you for sharing your knowledge and expertise!
You bet!
This is fantastic. Its detailed and to the point for people like me that are not handy this is great. Thank you very much for this video.
With your example bolstering my confidence and reminding me of the process: I just finished doing the same in our tandem garage. The job was a bit easier given the surface mounted circuit breaker box and choosing a surface mounted 50amp 240 volt outlet.
This guy belongs in Low voltage data work
Why do you use 6/3 romex rather than individual conductors? It seems like individual wires would have been much easier to pull and to make the bend in the L-box.
Great video and excellent information. Thanks.
Yup, you got lucky on fishing that wire through that small hole. Good job! Thanks for the video and education.
You bet
Excellent video, Thank you! I do not have a main panel in the garage however my meter is just outside the garage. I am going to install a single DO 50 amp breaker in a an A/C type box on the garage inside wall near the outside meter, use your information to install the inside plug receptacle then have an electrician make the short connection through the garage wall and to the meter stand. Again a very well done video!
One correction - NEC 625.54 require that EV charging receptacles be GFCI protected so you should have used a GFCI breaker. (garage receptacles are required to be GFCI protected as well.)
Good point, missed that one
So the ev is going to be pulling 40 amp max because. Nec 625.41 this is a continuos load
40x1.25= 50 amp current protection.
Can I use a 60 amp breaker instead of 50?
The tesla wall charger and others are GFCI PROTECTED INSIDE THE CHARGER SO YOU DONT NEED GFCI BRAKER BUT LIKE THE 14-50 AND 6-50 ARE NOT GFCI PROTECTED YOU NEED A GFCI BREAKER.
@@alexmckay5447 what kind of charger are you installing?
Man I never thought to just shove all twenty something homeruns into one 2” knockout on top of the panel! That will definitely save me some time in the future and I won’t have to waste a bunch of connectors either! Thanks for showing that! 👍
I didn't call it out, but that could create an overheating situation and a hazard. Recommend separating the cables into individual conductors.
@@joelwalsman773 but then I wouldn’t have to add a heater in my garage, just pull the panel cover off in the winter and my garage will stay nice and toasty! 😂
youre actually allowed to do that. its called a stuffing tube where im from. Any conduit length less than 2 feet (called a nipple), you dont have to derate the conductors ampacity. It is 100% allowed by the NEC
I am a home inspector and contractor for the past 35 years, excellent lesson.
But I was always told not to put insulated cable in conduit? I always strip is off, my understanding is to reduce the heat.
Romex is allowed in conduit and it has no negative effect on heat dissipation. In fact, when romex in installed in conduit you are required to leave the outer sheating on for the entire length that it is in the conduit.
Many thanks. Explaining things to us DIYers in clear, concise language we can understand is greatly appreciated.
You are great at explaining what should be explained in depth and I appreciate that you don't just assume that everybody should already know the basics...im a handy man and take pride in my work but learned a whole lot of things in this video that I will use going forward...thanks
The one comment I have is regarding your grounding path for the conduit. You go into great detail about ensuring your connections are secure, all locknuts and set screws tight. However, I didn’t see a grounding pigtail from the receptacle to the metal box. The other end of your run ends at the wall with no conducive path down to the panel. I know it’s not practical to run conduit through the wall to the panel, but without a grounding pigtail on the other end, how would any fault current make it back to the panel to trip the breaker should the conduit become energized? Did I miss something?
I noticed and thought the same thing. Makes you think . But with ground wire grounded to the outlet also ground the piping too?
No. Each of the components of the outlet are electrically isolated from each other. For the ground of the outlet to be connected to the metal box/conduit there would need to be a grounding pigtail to connect them.
Great point, I totally missed that. As far as I can tell you're right, the EMT nor the box is bonded properly.
@@timcaron9049 theoretically yes. But without the wiring device in place with the covers on, the pipe is not bonded. And while a grounding pigtail to a wiring device is not required when the metal box is bonded, I don't think the reverse is true from a Code perspective.
I suspect the metal mounting tabs on the outlet are bonded to the ground terminal, which would bond the box. However, the other end of the conduit isn't bonded. I'm not an electrician, but I heard that both ends of the conduit should be bonded.
Sooo well done!! You're a natural. Very inspiring. Thank you.
Excellent gentle man thanks a million i was searching for a video like this. I am going to watch minimum 5 times to grasp a step-by-step approach
Thanks for making this great informative video. It should be very helpful to new EV owners and to train new electricians [and skilled DIY types]. Given the cost of copper these days, I would install a 6-50 outlet instead of the 14-50. Just be sure to get a 6-50 adapter for your car’s charge cord instead of a 14-50 adapter. This saves the cost of the unused neutral wire. However, if you ever would want to plug in a 50 Amp RV in the future, then go with the 14-50. RVs need the neutral wire and cannot use a 6-50. Another thing to consider is using separate THHN wires to support converting to a dedicated EV wall box with 60 Amp breaker in the future.
Question: Do I run a 6/2 NMB wire for the 6-50 Receptacle . Also should Romex 6/2 wire be in a conduit? Some concerns about heat accumulation in PVC conduit. What do you think?
@@ziamkondkar8273 It’s best to pull individual conductors rather than NM. It’s easier to pull, and reduces potential code issues with the wire overheating - critical if you’re pulling full capacity for a couple hours. In the US you’d be using THHN, and in Canada RA90 or similar.
You may be able to use TECK cable (it’s a very heavy armoured cable with an extra layer of plastic) without conduit. While it’s more expensive than NM once you factor in the cost of conduit it ends up no more expensive.
Very good, piping and landing the wires also good job on explaining to regular ppl who may not understand how to do this as a diy, But you missed one big/small detail you forgot to ground the metal outlet box with a pigtail or grounding screw NEC article 250.148.
An absolutely perfect video on AC electrical systems and how to make it safe and all that being an old shop teacher I have to tell you put on safety glasses before you start any work thank you very much for a good video
Great video. Well done, concise, easy to understand, and enjoyable to watch. I learned some things here that will help me with getting an outlet installed for my new Chevy Bolt that is coming (whether I do it myself, or let the contractor do it.)
In my area, Romex is not allowed in emt, in pvc it's ok, just not metallic. And I would do whatever it takes to keep that fish tape out of the panel. I installed two of these this month and used pvc conduit for one, and drilled holes in the exposed wall studs for the other. Either way, that awg 6 is a challenge.
You should use the fiberglass fisher tool to guide the wires on live panel... thank you
Thanks for doing this. I just used your video to check my own work. I'll probably make a few changes as a result. (I've installed car chargers in two locations so far. Each, I hardwired instead of using an outlet/plug in order to get a slightly higher amperage.)
You’re a great instructor! Very clear easy to follow and understand. Thanks for sharing!
Without commenting on the accuracy of everything said, this guy is an amazing UA-cam instructor. No obvious cuts for take after take. Lots of hints. Great communicator. Not his first rodeo. My biggest issues? Don't use drywall anchors for such a big box, it wiggled. Locate stud first or use toggles. Violated his own safety rule using steel pull tape on a live panel.
Yeah, you're right Ole. Time to update the old tools.
It can be so hard to compromise the flexibility and durability of the metal tapes for the fiberglass, though.
Nice video. I would use safety glasses, especially working in a live electrical panel. Secondly, I would use an insulated fish tape while in a live panel.
Thanks for the feedback Bill
Great Video don’t even have a car, garage and live in Europe with other standards, nothing of this affects me but i still watched the whole thing
Great video and super helpful to understand this process. I'm building a home and asked my builder to quote me on a single outlet in the garage within 100ft of breaker box. The cost was $1690 (Philadelphia PA). Sound reasonable? My own math: Wire ($525), breaker ($30), electrical box and outlet (~$50), Labor ($1085). No conduit as this will be done before drywall. Thanks
Thanks for the video. Your friend is an enthusiastic electrician and a great teacher. Agree with commenters that some things could have been done better. For instance, much prefer THHN wire in conduit and would like to see a conduit system go from panel to box. Would consider the installed tubing in this case to be more of a protective sleeve rather than a true conduit system. Also not a fan of the faceplate arrangement on the wiring device. Regardless, enjoyed the video. Always glad to see other pros work. Keep up the great work!
Ground should be attached to the metal box and receptacle.
That's a pro tip
Isn't the box bonded to the receptacle ground via screws.
@@lciummo1 Box must be grounded independently of the receptacle.
Great video, but I've seen a lot of people comment on other electrical videos that they are professionals and say you should never run insulated romex through enclosed conduit. They say it will make the wiring overheat in the conduit and cause problems. Some even have said it's against code in their locations.
It's not an NEC violation and the romex will not overheat simply be being in conduit. These "professionals" are wrong.
NEC Chapter 9 Table #1 says maximum conduit fill is 53%. Use larger conduit!Heat builds up inside conduit. Running THWN or THHN is preferred. Change wire type in junction box to run down wall cavity into breaker box.
This is a good way to do it. I just did a very similar thing for a 40 amp electric heater except I used flexible metal conduit. For me I ran my wire in the conduit and then put it up because that wire is tough to manage. And I just used an outside junction box to near my elect panel to wire it. Really the hardest part is dealing with the thick wire. And just to note, I turned off the power and also bought insulated screwdrivers and pliers to use.
Not correct..not legal..not d
Safe
Not good way..illegal..unsafe
@@joeferry2723 Thanks for the useless comment not specifying which part was illegal or unsafe.
@@youtube_acct_42ALL OF IT WAS UNSAFE.
This guy is an EXCELENT teacher. Thanks .
He is and Joel also has his own channel where he goes over a ton of great Electrical info www.youtube.com/@ElectricProAcademy
It's great to finally see Seann William Scott in something again
Thanks for the great info. Just bought a Tesla 3 which is months from being delivered. Electrical is something I leave to the trade but this was helpful in understanding to what I need to have done.
Great vid!! Had a serious incident while in the AIR FORCE years ago. I had my wedding ring on when I shouldn't have and almost lost the finger !!
I watched closely while you were working hoping nothing serious would happen while working close to hot circuits 😊
I was thinking the same thing about his ring. It was one of several things that made me question his self description as a professional.
Had a mechanic friend who forgot to remove his wedding ring and got it stuck between the hot battery post and the fender of the car. Plunged it into cold water, but the next day he had a burn blister that looked like he was still wearing the ring.
I’m was so nervous watching this guy muck around haphazardly on this panel that I went outside and shut off MY BREAKER PANEL!!!!
It’s not that dangerous lol u just gotta watch ur hands
No you didn’t ! lol 😂
Dude!
😂😂😂😂
240V shock is like a good cup of Espresso