How To Install A Garage Sub Panel
HTML-код
- Опубликовано: 19 май 2024
- All My Favorite Tools - www.amazon.com/shop/everydayh...
Joel's Channel: / electricproacademy
Whether you are looking to run power to a garage, barn, shed, office, or any other structure on your property we have you covered! We will walk through the full process of running power to a subpanel through an 80' trench ensuring you are doing the job to code and safely. Remember to check your local code and if you are going to do this as a DIY project be safe and ultimately you are responsible for a safe and code-compliant install.
Parts List
#6 THHN Red, Black, and White and #10 Green: amzn.to/3xTG3Rg
Schedule 80 conduit
Schedule 40 conduit
LB conduit bodies
90-degree elbows
45-degree elbows
Box connectors
1" STD minnies for PVC
Sub Panel: amzn.to/3NhqGI8
Ground Rods
Ground Rod Clamps
#8 ground wire
Chapters
0:00 Project Intro
1:09 Project Plan
2:25 Clearing A Path From The Conduit To Outside Of Home
7:24 Connecting Conduit From Panel To Outside Conduit Connector
8:42 Prepping Wire To Pull Through Conduit
10:05 Conduit Fitting From House To Trench
12:45 Trenching Best Practices and Code
15:40 How To Avoid Damaging Utilities And Drainage During Trenching
16:56 Connecting Conduit Through Trench From House To Garage
17:43 Mounting Sub Panel In Garage
19:50 Pulling Wiring Through Conduit
22:40 Wiring Sup Panel
24:50 Wiring Panel In The House Basement
27:18 Checking Voltage At Sub Panel
Free Home Maintenance Checklist:
everydayhomerepairs.com/home-...
"D-I-Wire" T-Shirts: everyday-home-repairs.creator...
Join Our Community on Patreon: / everydayhomerepairs
DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. 
Хобби
As an electrical guy, we get to install what the customer wants inside code. I would encourage a homeowner in this situation to consider larger conduit. With all that digging and concrete cutting and all, it was only a 60 Amp panel.
With electric cars needing a 50 Amp circuit, upsizing th pipe will allow the 60 Amp wire to be used to pull in a larger wire for the electric car without re-digging. A power up-grade would just need to pull larger wire and swap the panel for a larger one.
Also, consider 2 or 3 extra pipes while the trench is open.....maybe a hard-wire server or security cameras or some kind of diner bell/distress warning system (flashing light for high noise areas).
Love the work Joel.
Really good advice Keith, Joel and I (Scott) appreciate the feedback 👍
can he gotten away with 100 amp sub panel instead of 125amp
@victornaja7927 there is a load calculation in the National Electrical Code chapter 2 i think section 220 (not by my book). That can be used to calculate the loading expected on a sub panel or to a house. This is the section that expects some loads not to work when others are running (a/c running, no need for heat).
The panel installed should be able to handle at least that much load. You can go bigger, not smaller. So, a 100 Amp breaker and 100 amp supply can feed into a 125 panel, but all the supplying breakers should be sized for the wire supplying, including the isolation input breaker in the panel.
So, some lights and a car charger, can have less amps than a workshop and car charger.
In this video, I think it would be okay if I remember correctly. However, I would encourage you to involve a pro to at least make sure you get the correct stuff for your project.
PS. I always recommend bigger conduit and multiple conduits for future upgrades and things like security, internet, and maybe a warning light for trouble in the house. A light can be "heard" over any noise. While your trench is open, you can drop in many pipes and cap them off for future use or..... re-dig later?
Thank you. I'm a diy to the core. I'm planning to build my garage n as I'm trying to figure out the sub box n cable I'm already preparing to to have pipe fir ethernet cable n separate pipe fir electric
@victornaja7927 I often recommend getting a pro involved. You can involve them only at the level where they advise you and allow you to do everything yourself. (I understand very well both the self pride and joy in doing things yourself)
They may have solution to problems you do not know you will have.....do you need an external disconnect on the building, type of wires to run, and more. One man called his "barn" an agricultural building for taxes or building money discounts. That title enacts extra electrical requirements and has its own electrical section.
Again, while the trench is open, consider a bigger conduit.....(200 amps). This will allow major upgrades no matter the panel load you install today. Extra pipes for cable tv (waiting room), internet for sales, security cameras, dinner bell (flashing light), etc. It is easy to drop in an extra pipe and put string/rope in it today and easily pull in what you want/need tomorrow....minus extra digging.
Hope you have a good build.
I was watching this and thought hey you just tied your neutral and grounds together, that's not right. Then you fixed it. Thanks for showing us all of this including your mistakes. We are all human and constantly learning. Great video and collab.
Thanks!
I thought they tie together in main box anyway🤷🏾🤷🏾🤷🏾
Oo nevermind, I see your working off of the sub, not the main...🤦🏾🤦🏾🤦🏾
It made me feel good to notice this myself based on comments earlier in the video. Accidental confidence builder!
Nothing quite like a HOT project!
Nice video, believable cost breakdown from an actual electrician is valuable, almost missed it snuck in the end
Absolutely the best video I found on youtube regarding how to install a sub-panel!!! Thank you!
Kudos for citing N.E.C. So many folks on videos just say or show how to do things. Citing N.E.C fully with numbers gives great reference points for others to go do more research.
This guys the best! Thanks for teaching me the correct way to install sub panel. Followed your directions and it wen't really well!
Thanks. Should mention that call 811 system for public utility location.
Was contemplating a 75 foot buried extension for an RV pad. Gave me a ton to think about. Down here in Central Texas the frost line isn’t an issue. But ground shifting between dry and wet a deal that would force a gravel base to the trench on my run which has a 10 foot drop in the run.
Joel is by far the best I’ve watched on the tube. Great teacher.
He is good teacher on the labor part, but regarding code i would recommend an actual code instructor. Some of the stuff that he claims is code isnt actually code.
I like how you explain the codes.
This was probably the most perfectly explained and detailed video I’ve ever watched! It wasn’t overwhelming at any point. Just specific and explained very very well. Great video!
Thanks!, Joel did a great job and has a TON more videos over on his RUclips channel as well www.youtube.com/@ElectricProAcademy
This was great I was looking for a video to wire 240 to my garage these guys have the panel in the garage already easy work... I am going to have to do some digging since I'm doing that might as well do a subpanel. The price you quoted surprised me
You did an excellent job step-by-step explaining and especially delivering those NEC Codes more videos, please
Joel is a fabulous teacher!
I've been doing a mountain of research for exactly the same project. This is far and away the most informative video I have watch about doing a subpanel job
I'm an electrician who just watched this video. How did your subpanel install go?
@@cantlean4440 hi guys may i ask how high was his subpanel at in the new subpanel at the garage from the ground up i did not catch that please
Amazing advice. Thanks for sharing.
This was an extremely helpful video! The host doing all the work and talking is amazing at explaining everything and giving us tips. Overall a 10/10 video and I appreciate the work that went into this for all of us!!!
you provided me with information that i had forgotten. very well done.
Good work..!!!✅
And good shot at 24:42 of the power IN hookup on this Sub Panel 😎👍👏
One of the best explanations for this job that I've seen. Good job.
Excellent Job all the way around, I found it very interesting at 15:13 regarding the expansion and contraction of the conduit due to seasonal warming and cooling. Brushing up for some out-building wiring jobs. Your tips are golden! Another pro-tip for some extensive digging and excavating small scale, buy used equipment that runs well, keep it as long as you need it, and then sell it off after the job is complete, It's far cheaper than renting for several weeks. :)
Thanks for the feedback. If you want more of Joel (the guy in the video) check out his channel at @ElectricProAcademy
Over 1,000 videos published 🤯 nice work with the channel!
I'm a subscriber to both of you guys.
Retired 25 year commercial electrician.
You guys keep me up to date on codes, how-to's and trends.
Whats Joel's channel link?
@@BDBD16 electric pro akademy
Academy
Joel's Channel = ruclips.net/user/ElectricProAcademy
Thanks for the support Roxanne 👍
Man this is awesome. Thank you for the step by step with simple explanation as to why things are done per code. Helps me understand for sure. Great video.
In Canada we are fortunate to be able to use Tech Cable for underground which eliminates the conduit and the need to pull wires thru conduits.
You totally threw me off, thinking this was gonna be an Electric Pro Academy video, seeing Joel in the thumbnail, then when I clicked it, seeing you with Everyday Home Repairs.
Between you two, Stud Pack, Dustin Stelzer's two channels with Electrician U, and a few others, I am so in love with learning all this stuff about electrical!
Awsome video! One of the best I've seen. You gave so much great information.
Thanks, Joel is a BEAST 💪
Joel, that cut you made of the conduit stub out from the house was angled with the reciprocating saw, doesnt allow for full seating of the pipe when glued into the LB conduit body and as you said the weakest point in the connections, but thank you again for sharing the install of this job!!
Great Video, Thanks for the info.
Consummate professional...he toned it down and kept it pro. On his channel he's having a ton of fun.
Had to pull SEU for my dad from our panel to his new workshop about 200ft away. Even lubed up it still took two grown men pulling in unison to get it to go.
Good video. Good you mentioned checking for utilities. In my state,Dig Safe (covers 5 states in NE) will check for all utilities and other cables (ISP cable services) that are underground. I installed an independent ground for my solar panel/turbine set up, Dig Safe was very thorough.
Great video. Well explained and helped me out enormously
That is what we are here for, happy to help 👍
Your videos are really great. I was wondering can you do a video on how to wire a 12/3 wire to a junction box to two separate lines off of a 2 pole 20amp ?
This so good, thank you!
oh thats sick, you both are my favorite
Best video I have seen on this topic.
Thanks!
Very informative. Why no main breaker in the garage? Even if not required, would seem like a priority need.
Excellent video and details. Thx. What about the grounding to ground rods at the garage?
Pro tips from Mr Underground.
Don't always use fittings for bends. On the bend by the drainage pipe you could have easily dug a sweeping curve and eliminated 90% of the drag when pulling wire. Same with the 45s approaching the garage. Also, that trench isn't 18" deep :)
Also, I think it would be easy enough to "shoot" that wide sidewalk instead of removing and replacing the concrete. Dig the trench at the proper angle and depth (where the drain pipe was). Glue a male adapter and brass spray nozzle on one end of a piece of PVC and a hose adapter on the other. Lay it LEVEL in the trench and start working it through. If it is hard soil, let it sit for 30 seconds if and work it forward. Repeat as necessary. In 10 minutes, your pipe is under the walk. It's messy but quick and cheap. I learned that in the olden days installing irrigation systems.
I don't know all the details but I may have chosen to come from the main panel. It's easy enough to make a couple spaces by moving two circuits to the original sub. But, it was probably a mess in there and easier to use the sub.
I'm old and retired and came here to bust your balls, but I can't. I'll give you a 10 out of 10 :)
Great video! So I was watching when the sub panel in the house was being wired and I thought to myself "I thought that since this was a sub panel grounds and neutrals were supposed to be separate" and sure enough he called it out as a mistake - AWESOME! What a great way to reinforce that concept (if he didn't actually do it by mistake).
I just did the same thing.
Great instructions! thanks
I actually did a similar project myself a few weeks ago, good to see we almost did it completely properly. I opted to lay UF cable underground because that turned out to be a fair bit cheaper than getting separate conductors and conduit, and it skips the hassle of pulling cable all that distance.
Righto! There’s a new product I love called Trable Cable with a direct burial, sunlight, damage resistant and joist pull rating. Super stuff!
Really good video! Love the insights, tips and how-to’s. Well Done! Thanks! 👍💪👌
Great video full of information. My question is how do you compensate for drainage around the foundation of the house? On my house the drainage at the back of the house where I have to run the conduit is at the 24 inch depth.
Awesome video I'm doing something similar & love to find videos that support my project. Fortunately I only need a trench less than 30 ft every thing else is inside. Yes it will be in PVC inside & out.
Just wondering; when you checked the subpanel and had voltage between hot to ground, I found that in my detached garage. I didnt know if that was correct or a wiring problem. Are the outlets downstream suppose to also be with voltage between hot to ground? You are good as an instructor! Glad I found you channel.
Nice! I hired an electrician but got stuck diggin my trench with a pick and shovel to save a few bucks.
Sure the electrician was happy 😂 I do the same thing on some projects to save a few bucks #sweatequity
I need to find a Joel of my own.
Amazing work. I did the same thing but an easier run in 2019. One thing I would definitely suggest is to run an extra piece of conduit (I did 3/4 and 1.25" for my needs), the extra piece being for Ethernet wires for POE powered cameras and connecting to my big inverter on my main solar array (data tracking, updating). May be great to have a WiFi access point in the garage or cameras or future needs and just keep it empty!
Oh, and one safety thing not mentioned - if you get an SDS max hammer drill to do large drilling, be extra careful that it doesn't bind and twist on you - that can break your arm off! Didn't happen to me but I used one for drilling 4-5" hole through 2 cinderblock walls at work and man the thing was crazy powerful. Only power tool that scared me to use a bit, even with being careful.
You have never used a Harbor freight angle grinder before then…🤣… you feel death standing behind you.
@@anthonywinters3288 lol I have a Harbor freight one actually, but I paid for the 'good' one, not the $10 one. I use hammer drills a lot but the massive ones are beasts and the twisting can be dangerous.
I agree being scared of the bigger hammer drills cause hitting a rebar man it will twist your arm off lol.
@@anthonywinters3288 I have an orange HF grinder that is noisy as hell but absolutely will not die. It’s about 15 years old and has not let me down yet.
Super thoughtful video. You can use a rod push system to avoid cutting the drive. Cable pulling lube is essential for making pulls easier. Step drill, will be getting one now!
But the lube is so nasty and gets all over everything.
dude 6:50 that machine was impressive. it was like the brick was butter. I know it was sped up but still.
I enoyed the project video. i also am doingthis kind of project too oneday.
You could move a couple of 120v circuits to the sub-panel and then run the garage sub-panel from the main.
Thanks for cutting the video.
Is a expansion fitting not required where it enters / exits the ground into the building?
I really like your video. You cover so many of the issues we find trying to troubleshoot the mistakes by non licensed person. The sch 80 is a huge miss by people and when the sch 40 shatters in the freeze or heat after a few years? FYI, Texas does not allow homeowners to perform their own electrical. Two issues I need to comment on. 1. NEC table 300.5. all direct burial wires, PVC conduits, and rigid metal conduits etc. under a driveway shall be 24" depth, not 18" as you stated. Landscaping is 18". It's under the vehicle traffic, highway, roadways, and driveway column. 2. All the Romex wire (non metallic sheathed cable) entering the house panels are using PVC connectors and not strapped. This is incorrect. NEC Art 312.5C Cables entering a cabinet, panel, or box shall be secured at entrance and then secured again at 12" leaving the panel. There is the exception for using non flexible raceway more than 18" in length. Having all the wires entering the panel unsecured is a real issue. Good luck, keep the great videos coming. Customers really need to know how much labor and work these jobs are to do. Because suddenly homeowners think... that's not hard?
Hi John. 1) NEC table 300.5 also states "One- and two-family dwelling driveways and outdoor parking areas, and used only for dwelling-related purposes" requires burial cover of 18" as he stated. 2) The main and sub are "old work" and likely passed inspection at the time of install so wire strapping is likely a non issue in this case. Please correct me if I'm wrong.
I'd be more concerned about metal panel being fastened directly to below grade masonry but hard to tell if anything was done to help prevent corrosion
I believe the most recent code now calls for 'expansion fittings' installed on the pvc conduit where it is above ground, to prevent damage from expansion/contraction.
Joel, in Arizona we don’t license electricians, only electrical contractors. So, if a master electrician were to move here from say Indiana, and want to pull wire on his own, he would first have to get a contractors license, post a bond, get a business license before doing any work that required a permit or cost more than $1500.
The local junior college runs a two year certificate program but after graduation, you’d still have to work op for a contractor before going out on your own.
Wow, I am happy I took the time to watch this. I just saved myself from getting taken to the cleaners! Had a company I didn't know anything about estimate a solar job and thanks to my late father, a "Local 58 Detroit Electrical Workers Union" a 60-year master electrician, oops an industrial electrician. I turned the job down because we felt I was going to get the shaft. And you just confirmed it! Cool! By the way, we're now in AZ. Yavapai County, the home of the shaft..... Why is it that so many have to try to stick it to the little guy! So Thank you again for this video! And yea, our id here is on my hat pic, I have been into better health for 2 decades now!
Good stuff. Subbed immediately!!!!
I believe NEC 225.32 requires a main disconnect for a subpanel in a separate building.
I usually remove the two middle screws last on panels installed higher up.
Now about separation of grounds and neutrals....what difference does it make when the neutral and ground bus bars are bonded to the panel...which electrical inspectors look for! Another observation is why ground the sub panel when your sub panel is bonded to the main panel? I realize this extra bit of protection is needed on certain applications...but I don't see the grounding issue!
I believe the NEC clearly states if a grounding is used, it must be solid #6 copper!
Any videos on exterior sub panels? I guess more or less best practices on the install as i know code will change on location.
Could have covered more on why you chose the size wire you did for the amperage and distance of the run.
That is just perfect. I would not feel comfortable doing it myself. Well done and lots of tips
I like that shirt that Mr. Scott is wearing.
Great Video......But, I missed the line that was used to pull the 4 conductors to the garage through the conduit.....when was that done? Thanks Much!
Thank you brother.
👊
Outstanding video, very well explained. 👏👏
This is the best explanation of this project I've seen. But, you didn't demonstrate or explain the connecting of the ground rod. I assume that's what you're connecting at 24:20.
@26:10 he states the main lugs in the existing sub panel are energized, which is surprising because you'd think they were fed from the existing main panel at a breaker that could be switched off
This guy is great
2:15 doubles as a pickup line for the ladies
Classic 🤣
You read my mind. 4:36 for part 2
amazing video but for a sec there i almost lost my mind when i saw you installed the neutral into the ground bar.
Yeah, almost missed that one.
Really good step-by-step. Noticed two grounds at the sub-panel, one (green wire) obviously comes from the main along with the two hots and neutral. I'm assuming the bare copper ground wire came from a separate ground rod outside of the second structure. Can someone verify please?
amazing video! would you tell what gage did you use for two hot wires, ground and neutral wire? else where did you buy the sub panel?
Question, if you wanted a 100 amp subpanel. What wire size is needed? #3 copper thhn and a #6 ground?
Yes, but #8 ground is sufficient.
The install was excellent! The electrician has been doing commercial work! Residential is “120/240 volt Single Phase 3 wire system”. Single phase, not 2 phase. There is no phase A and phase B. It is Line 1 and Line 2.
Respectfully, Kevin
Thanks for the feedback Kevin.
Heres a question for you.
My garage is a metal building kit. The building dept had me tie a ground to the rebar in the foundation. What are the connection points for that ground along with the 2 ground rods? Does the foundation ground tie to the ground rods then the ground rods to the panel ? Or the foundation ground to the panel ground and the two ground rods to the panel ground as well. Then I'll also have the ground from the main house panel to the sub panel as well !?
OR. does the foundation ground tie to the metal garage frame and continue on to the sub panel ?
Always get a kick out of watching how easy you guys have it when digging a trench.
I live in a Canadian province nicknamed The Rock and all you need to do is try to dig
and you'll quickly find out why it has that nickname. You couldn't go 2 feet without finding
boulders the size of your head or larger. That trencher would have a nervous breakdown.
Love your step by step explanation style! You do good work! I’ve done a lot of electrical projects over many years, electrical engineer, Army trained electrician, many DIY projects. One question about your cable pull step: why deal with the struggle of the heavy pull? You could simply run the cable through each 10’ section of conduit and then lay it in the trench with no pulling? Your thoughts? Thanks! Dan
Conduit must be installed as a complete system before pulling wires. (at least according to Canadian Electrical code)
It is definitely an option to do it this way in Australia. Run it through each length first then glue it.
Hi there my breaker is Jose nice to see you, a question is there a way to connect a sub panel to a main fuse panel?
Won't lie... I enjoyed this video
Regarding the ~3:20 part about the cover on the panel, @Joel/@Electric Pro Academy, would there be any problems with adding a bit of a ledge/support as like just a flat board underneath and along the bottom of the panel's cover, onto the nailer board (if one's house has it), just to make the removal of the panel cover that much less straining and dangerous?
Local rental stores are absolutely the way to go. We rented a stump grinder from home depot and it was missing 1 of 3 cutting teeth. Took it back and every one they had was missing at least one tooth. Went to our local rental store and the guy rented us this absolute beast of a stump grinder on tracks and a hydraulic cutting head. It even came with its own trailer, and it maybe cost $10 more. What started out as us removing one stump, turned into 15+ trees because that first stump took us 10 minutes and we wanted to get our money's worth.
This new garage subpanel is really a subpanel to the subpanel in the house correct? So both subpanels do NOT get bonded together, correct? And did you say that (2) grounding electrodes were required? Is that one at the Main panel and one out by the newest subpanel? Thank you! Excellent video BTW.
excellent
Thanks!
Hey there Scott, first, thanks for sharing this video.
Now, my question. In the video where you put a subpanel near (next to) the main, you run the subpanel supply CB at the main panel. Yet in this case I see the subpanel main breaker is located in the subpanel, not the main panel. What gives? Thanks in advance. Daniel
Good video documenting a giant amount of work. Well done. A mains shut-off on the outside of the garage might be a nice safety feature since it looks like the space is going to be used as a workshop. Regardless, great job!
Appreciate the feedback 👊
I an electrical contractor from England. That was so long . We would just run a steel wire armour cable. Much easier. The cable is protected by wire mesh which you can Also use as the earth ( ground ). You just bury the cable straight into the ground.
Also we would have to test the earth loop impedance to make sure the MCB protecting the new board would disconnect quickly enough under fault conditions.
How long does this steel armour cable last?
@@IGoProEVERYTHING 50 yrs minimum at least depends like all cables how much it is used.
I did not see what you used to connect to the your electrical cable before you pulled it through (I watched twice). Did you have an electrical snake or just some bare wire you purchased? When and how did you push it through?
brah should have a expansion fitting below them LB.s , frost will make that conduit a banana after a few winters
Use white electrical tape for pulls as it leaves absolutely no residue after coming off. You can even write on it with a sharpie.
why did you not need a main breaker shut off on sub panel in separate garage building
What amp breaker inside the main panel?
Needs a main disconnect in the garage sub or less than 6 handle throws. If NEC 2020 the 6 throw rule is voided.
My Cutler Hammer box has the ground and neutral bars bonded together
ok i was wondering near the 27 min mark if you were gonna catch your neutral on your ground bar.
So I installed a Spa Disconnect box using 6 GA THHN for the Hots and Neutral and 8 Ga for the Ground. The box is rated for 50 Amps. Are you saying I could change out feed breaker and GFCI breaker to 60 amps using the same 6 GA wires?
How do we water and air tight the holes those we drill in the wall? Caulk, spray foam or any other material ?
This was an amazing walkthrough of the process. But how did you get your tiny pull wire through the 70 feet of conduit to attach to your conductors for that pull?
Your fish tape should easily run through the conduit to hook up to the THHN. This definitely can be a little more difficult as the number of 90’s increase in your conduit.
@@EverydayHomeRepairs I haven't done this myself, but I would imagine you could also attach your lead to something magnetic, and use a strong magnet from outside the conduit to help "pull" it along in case pushing isn't working or it gets stuck in a corner. Just the lead though, no way it's going to get your THHN through.
use a light string and pull it thru with a vacuum cleaner, then pull the pull rope or whatever thru with the string
Doesn't being above the frost line line generally imply the ground is warmer below during the winter, and cooler during the summer....
Great video! thanks for sharing. I have a somewhat different situation. I have my main, basement panel as a sub panel from a newly installed 200amp upgrade in the garage. The garage is attached to the house with wires running under a concrete slab. Is it possible to use the existing 1.5" conduit running under the slab, for a 30 amp power backup from an inverter located in the garage? Sadly, the primary 200amp panel has about 3 circuits on it while the original basement panel is fully loaded. any suggestions, folks?
What is the inverter for? Solar panels or electric car charger?