I've been an electrician for 25 years. You guys break this and all your lessons down perfectly. I've turned all my apprentices on to your Channel just for the way that you break it down and make it so easy to understand for the guys coming in at the first and second year level.

@adelcamac8681

Жыл бұрын

I know right!

Dude, that was 2 days of class in 17 min. 👌

@ElectricianU

3 жыл бұрын

🤘⚡️😎

@TheAVJedi

3 жыл бұрын

@Waylon Finlay When you have a circuit connected through GFCI, the active/hot wire and neutral of the circuit are fed by the GFCI device. The GFCI device is measuring the current going out through the active/hot wire and therefore knows the current coming back on the neutral must be the same ie.. 1 amp goes out 1 comes back. This neutral feed out of the GFCI is essentially isolated from the main neutral back at the panel so if a fixture or appliance connected to the GFCI device was to have a fault where say the active/hot wire inside the appliance broke off and touched the grounded frame of the appliance, the current would take this new path back through the ground wire to the panel thus creating an imbalance in the current the GFCI is measuring and as the current is no longer returning to the neutral terminal of the GFCI if would cause it to trip.

@mauriciomalisani2506

3 жыл бұрын

@@TheAVJedi 👏👏👏👏

@simontravels9379

3 жыл бұрын

@Waylon Finlay The current still flows through Neutral, but there is curren leak to ground if there is ground fault. The GFCI detects current is not equal on LINE and Neutral , and it will trip. That's the way how it works.

@johnturner2585

3 жыл бұрын

Really good vid 👌

I have been in electronics for 50 yrs and this has been the BEST explanation of bonding/grounding I have ever seen! Kudos!

@joshproskills760

3 жыл бұрын

Electronics and residential electrical wiring are about as similar as biology and physics. They use the same language and that is the end of the similarities.

@rty1955

3 жыл бұрын

@@joshproskills760 I guess you never really understood either then for you to make such an asinine comment like that

@joshproskills760

3 жыл бұрын

@@rty1955 Read my other comment where I explain bonding in 2 sentences. "50 years in electronics" and this is the best explanation of bonding you have ever seen? It is 15 minutes of talking partial correctness. I stand by my other comment. High voltage AC residential wiring and low voltage DC electronics have electricity, fuses, and switches in common. That is about it. One major difference is when people poorly understand "electronics" they don't burn peoples families alive. Please for our safety stick to your "electronics". Residential wiring isn't for you.

@georgebonanza9487

3 жыл бұрын

@@joshproskills760 Electronics can use AC even at low voltage. What are you talking about?

@joshproskills760

3 жыл бұрын

@@georgebonanza9487 Your statement literally says nothing and means nothing. If you can't read and comprehend basic English then propose some kind of intelligent argument based on the topic. I am sorry I can't help you.

I know of many Electricians that just “do” but don’t understand the “why”. This is the best demonstration of the “why”.. This presentation was really well done! Cheers

@XEinstein

3 жыл бұрын

As a physicist working in HV electrics that really bugs me. That my highly educated electrical colleagues aren't able to explain me how it all works.

@jaredkilgore7194

3 жыл бұрын

Most people still think "electrons" are actually "moving", flowing from point A to point B. Most highly educated people in the industry are nothing more than polly parrots, don't understand what's going on fundamentally at its most basic core. It's not entirely their fault, the systems taught them wrong, focusing more on theory and humane sciences than the works of the founders that brought us into the technological world we live in today.

@beckyschwantes5287

3 жыл бұрын

Not at all dragging this guy down, but mike Holts latest video on this subject is great. I watched the whole 1.5 hrs

@sendavis9953

3 жыл бұрын

@@jaredkilgore7194 e

@jackdud8793

2 жыл бұрын

@@jaredkilgore7194 I am confused, why would you put quotations around electrons? When you put quotations it implies that you disagree with the term "electrons". Also I don't think many people believe it is actually flowing from A to B unless they are getting their information from their high school teacher

Honestly man, you have a gift for teaching. Great video.

@raymond3722

3 жыл бұрын

Very gifted.

@edsmith7270

3 жыл бұрын

@@raymond3722 was a w

@MrOpinionCantSignIn

3 жыл бұрын

Yes, He has an ability all too rare ... teach in simple 'stupid terms' without making it obvious . I'm old - and know what he is explaining - but - am blown away by his skills in educating

@auletjohnast03638

3 жыл бұрын

William Reese, That's because I taught him all I know.

@beckyschwantes5287

3 жыл бұрын

He is very well spoken

Freaking love the toon representation of what happens during a fault! Def helped me understand exactly what’s happening. First year IBEW apprentice here and your vids are helping me tremendously.

@ElectricianU

3 жыл бұрын

Thanks for watching! Keep grinding my dude!

@pauls3117

3 жыл бұрын

What local?

@funsizedi88

3 жыл бұрын

2nd year IBEW 313, will be 3rd year in the fall. Like the way he explains.

@themtb2003

3 жыл бұрын

@@funsizedi88 prepare to be laid off after year 4. the only way uyou wont be, is due to this covid thing and people quitting jobs.

@pauls3117

3 жыл бұрын

@@funsizedi88 sister local Im from 654 and yes save some money like the other fellow said

Thanks for the explanation man, my boss and I were talking about this topic the other day and it's so nice to see such a great break down on the theory. It made it much more understandable. Love your videos keep em coming Scott from Ontario Canada

Bro whoever does the animations of these videos to keep up with the great teachings that you give this person deserves a raise 😅this is THE BEST electrical content on KZread and probably in all the world 🌎

12 years in the trade. AMD this was the most straight forward explanation I heard to bonding. Keep it coming browski

@vwhisp1394

2 жыл бұрын

That's why the future is in trouble for this trade. Step on your own toes.

"Bonding it's the thing me and my dad never did"

@dvaker90s21

Жыл бұрын

RCD ?

Great explanation! I know how important a good ground is from my days in communication when we still used radios and their associated antennas. I have always wondered why 3 conductors were needed when 2 of them get "tied together" at the breaker box, now I know! THANKS!

This is very useful. I’m renting an apartment in Mexico. I’ve got separate service from the other two apartments. The building was built by the landlord and his son-not a professional contractor. They hired a brick layer to construct the structure, and a plumber to handle the plumbing, but they did the electrical themselves. As is common in Mexico, I’m only getting half of a single phase service. The landlord has given me the OK to modify the electrical (to add circuits or make repairs). The reason I don’t demand he handle it is the rent is so low (less than $200 for 2 bedrooms, 1 bath, rooftop terrace). I’m in the process of adding ground to all the outlets. I sank a 4’ copper rod through the foundation and into the soil beneath the house. That’s connected to the service, and from the service I’m slowly updating each outlet, one at a time. I’ve also grounded the copper water pipe system. BUT I failed to properly bond ground to neutral, and thanks to this video, now I know it. It’s now #1 on my projects for this weekend.

@jett762

2 жыл бұрын

How did it go

@MoeBabaloosh

2 жыл бұрын

Probably did so well the landlord hired him to do the rest of his properties 😂

@derekmadge

2 жыл бұрын

@@jett762 I am a bit worried about him now... haven't heard back from him...

I like how the circuit breaker’s looks really annoyed when everything is running how it should

@joseblackwood4785

3 жыл бұрын

You re an awesome teacher I can visualize what you are talking about and the pics help as well

@that1electrician

3 жыл бұрын

@@joseblackwood4785 ShedHead didn't teach us jack shit, he just made a funny...why are you thanking him? You knew to YT bruh?

@TheDalaiLigma

3 жыл бұрын

@@that1electrician I think he intended to write an original comment instead of replying to this one

@natecroz

3 жыл бұрын

I loved that. Every time I see. Breaker now Im Gonna picture it pissed off at the world. Haha

@mikemarcott4888

3 жыл бұрын

👀😝😝😝😝😝😝

I have to make a big correction. An old school breaker works by "sensing" the current flowing through it. When the current flow increases over the breaker specification, it will trip. It doesn't care where the current flows and it doesn't care if there is a return to the panel. A ground fault breaker is different. This type monitors output and return current. As long as i/o are within specifications to each other (probably micro amps), the breaker can be set. As soon as the input is not the same as the output, the breaker will trip off.

@teledadsgotpwned6122

2 жыл бұрын

Glad someone said it

@bphenry

2 жыл бұрын

Yeah, this was killing me, so to speak. 😉

@bensilverstern4156

2 жыл бұрын

Thanks. I rewound several times to try and understand his logic. Now I understand

@nicholaskukushin6626

2 жыл бұрын

Could you please tell me if the NEC really requires neutral grounding?

@falsedragon33

2 жыл бұрын

@@nicholaskukushin6626 as neutral is a center tap of a transformer. Also known as a virtual ground, it will need to be connected to earth ground to bring ground and virtual ground to the same voltage potential. While home wiring bonds them, physics doesnt require it. In other systems you don't want to bond them, as to create isolation. A home would be perfectly happy without earth ground bonded. The potential difference in the transformer is none the wiser. But if that voltage was to stray to a metal chassis, or charge a swimming pool, it can make for bad days.

Slight correction - objectionable current is current flowing on the EGC and metal surfaces (which are normally not current carrying) during *normal* conditions. The reason we don’t bond neutral to ground at subpanels is because that would connect the neutral and ground in parallel. Current “returning” from the load could take either path, depending upon the resistance in the circuit. Objectionable current is not about when all hell breaks loose and the pixies escape. It’s when the pixies are taking random paths home every day, all day. Great video!

@lorenzo42p

3 жыл бұрын

a ground loop can cause noise or interference. also depending on the lines, it's possible the ground wire itself can become hot.

@mikemeaney3017

3 жыл бұрын

Awesome way to put it !

@kasualskeptik2584

3 жыл бұрын

Ahh ! And here I thought those damned Pixies were still under Covid lock-down... Damn you angry Pixies....!!!

@lorenzo42p

3 жыл бұрын

@@kasualskeptik2584 photonic induction is angering them again

@altuber99_athlete

3 жыл бұрын

There's also a mistake @ 2:45 - 3:08. In the animation, charge/current is flowing through the ground wire of the light fixture then through the ground rod of the house and then to the ground (as in the Earth), _without any return path._ So, the animation implies Earth is gaining the charge due to the fault current. But that can't happen unless it is "static" electricity (which is not the case). The problem specifically is that the animation, while it shows the ground rod and ground wire _of the transformer_ (as well as of the house), for some reason the animation doesn't show the fault current of the light fixture traveling to the Earth ground and _then returning to the transformer via the transformer's ground connection._

I'm not a sparky but need to do work on my house where I live ( I live on a remote island) so your videos have been a wonderful resource to cement what I already know, and have certainly helped me fault find and remedy some previous dodgy work. Thank you so much- really clear, to the point and very well done.

Royal Canadian Navy (RCN) Electrical Technician. I am self studying to challenge my Industrial Red Seal Exam. You are by far the best person I have come across that can explain clearly the theory and present it in a very easy to grasp way. Loved the animation, it helps so much. Thank you for putting these videos up. Hope you have a good one (what ever it may be). Eh Also you might have a stronger Army / Navy / and Airforce, but we have stronger beer! :P

In my opinion this has to be one of the best explanation of grounding and bonding. Great job👍🏼

@VauxhallViva1975

2 жыл бұрын

I had one guy try to tell me that the earth/ground wire was unimportant, as it "Doesn't carry any power". That is true when there is no fault, but the earth/ground wire is EXTREMELY important in a fault condition, and it is also very important that the earth/ground connection is as low a resistance as possible, to prevent I-squared-R heating and electrical fires etc in a fault condition. Over here, the earth/ground wires - wherever they have to be spliced - use two or even three screw terminals, to get the lowest earth/ground circuit resistance as possible. That way, a potentially large fault current will flow, and the MCB or RCD will trip super fast, before the fault-current can heat up the connection and start a fire etc. The earth/ground connection is perhaps even more important to get right over the phase or neutral, although you don't want them loose either! ;)

I'm brushing up on this b4 I test in a few weeks and gotta say, you are absolutely awesome at what you do. You simplify things so well. Definitely subbing

Dustin I’ve been watching your videos for years all the way from an apprentice to a master electrician. I wanted to thank you for the knowledge you have shared and imparted. You are like a younger mike holt or ray holder.

Love the animation and the sign with the deal with It! Love it love it!

A little over 4 min in and it’s like a switch just flipped and all of sudden it made complete sense. You sir are freakin awesome 🤯

@ElectricianU

3 жыл бұрын

Thanks for watching my dude! Glad it helped 🤘

I've watched a lot of videos to try to understand this, you are the first one that made it really make sense to me. Great job.

Literally had a problem with ground fault at a customer plant this week and this helped me more understand the issue. Thank you

Grounding and bonding has nothing to do with the gfci and afci breakers. There are two ground points and one bonding point on a residential service connection. The first is the electrode that grounds the center tap of the transformer. This provides 2 things, a reference voltage of earth (0v) in the systems neutral and a path from the earth to the transformer as a return path for ground faults. The second ground is the electrode at your service entrance. This ground provides a return patch to the transformer for the safety ground on all of the circuits in your home to prevent electrocution. One bond exists, usually a green screw that bonds the neutral to the grounded load center enclosure. This provides 2 things. It prevents the voltage potential on the neutral system and ground from drifting that could cause electrocution between 2 relatively safe conductors when the load center has high load on the neutral that could cause voltage drop on the bus and create different voltage potential. The other is to provide a strong return path to ensure enough ground current will flow to trip a thermal magnetic circuit breaker in conditions where the resistance of the safety earth electrode may be too high to allow enough current to flow to trip the breaker. Finally contrary to popular belief, no ground is required for a GFCI device to function properly. They require a neutral connection to both the load center neutral bus and the load circuit along side the live connections. The device then uses current transformers to create a voltage potential and compare them. In a proper circuit the currents, and thus the CT voltages in both conductors will be identical. If a ground fault occurs, some current is carried by the safety ground, or someones body to ground, and the neutral current drops as does the voltage on the CT. The device notices the voltages drift apart signaling a ground fault, and it opens the circuit. You can install these devices on old wiring with no ground conductor, and they will still work just fine since they only look and the current flow in the live and neutral conductors.

@JenniferFuchek

Жыл бұрын

How would one go about putting in GFCI outlets with aluminum wiring?

@RC-nq7mg

Жыл бұрын

@@JenniferFuchek It depends on local code requirements, here we pigtail the aluminum with a short piece of copper, anti oxidant paste is applied such as Pentax and then joined with connectors approved for AL and CU conductors. The copper wire can then be safely connected to the terminals on a device requiring CU only connections. Check your local codes, they may vary.

@JenniferFuchek

Жыл бұрын

@@RC-nq7mg ahh interesting. My house has aluminum wiring and I've been changing the light switches and plug outlets room by room (slowly) and adding Noalox to the screws and ensuring to not over-tighten. Nice to know it can be done, though. Do you prefer AlumiConn connectors or a different type/version?

@dallas5374

Жыл бұрын

Aluminum wire is dangerous. I would replace it as soon as possible. Fire hazard.

@RC-nq7mg

Жыл бұрын

@@dallas5374 Easier said than done when it is in enclosed walls. Nothing wrong with aluminum wire if it is not abused, same goes with knob and tube. It only becomes a problem when it is worked on improperly or abused.

Great video my man! Grounding and bonding is so important and can be hard to get the full grasp of it in the NEC. Content like this is helpful, keep it coming!

@lakorai2

3 жыл бұрын

Since it could prevent a house fire and can save lives then it is critically important to get this right first time and every time in every install. Never skimp on safety. It's hilarious when people bitch about the cost of Arc fault and ground fault breakers/outlets. You do realize these are designed to prevent your house from burning down and from you getting electrocuted to death right? And some states, like Michigan, ignore the NEC and no longer require afci breakers.

Legit AF! As an electrician fairly close to testing for my masters I came across your content and it has been extremely helpful! Thanks for sharing your knowledge! I can honestly say your an inspiration to this sparky and I'm sure thousands more!

@coloradostrong

2 жыл бұрын

_you're_ not "your" an inspiration

This is great stuff. I wired a small house for my dad and was trying to explain this to him, but was having a difficult time explaining it. This is perfect.

Great video. Now we need one about why your ears are inside a hat

@walterdowney9999

3 жыл бұрын

Lmfao

@walterdowney9999

3 жыл бұрын

The hat is bonding his ears to his hair

@nofrenz2065

3 жыл бұрын

Big ears don't look good

@20somthingrealestate

3 жыл бұрын

Ears look fine big or small, they are what they are. But, when you put them inside a ball cap it kind of makes you look like a window licker.

@robtheslob3940

3 жыл бұрын

It may not be warranted but when you wear a hat backwards people won't take you seriously

The reason you connect ground and neutral together is to create a path for ground fault current back to neutral, and trip the breaker immediately.

@prasanthrajumanikonda

3 жыл бұрын

How come this current flow to neutral after bonding?..sir please explain it

@simontravels9379

3 жыл бұрын

@@prasanthrajumanikonda Because the Neutral is connected to ground at entry of service panel.

@prasanthrajumanikonda

3 жыл бұрын

@@simontravels9379 sir does it mean....current from ground flow to neutral but not to earth right?

@simontravels9379

3 жыл бұрын

@@prasanthrajumanikonda correct

@redcrafterlppa303

3 жыл бұрын

@@prasanthrajumanikonda but at the moment it flows from this ground to neutral the braker cuts of the flow by sensing the current coming from ground. Edit: there is actually another way of doing this without bounding ground and neutral. Witch is used in other parts of the world. It works by detecting the diffrence of power flowing through thr live wire and coming back through neutral. It detects how much power is flowing through the ground wire to ground.

Excellent video, thank-you. Fascinating explanation of how things are done in the USA. I used to work in the UK for an American owned multi-national company. My role was designing electrical control gear for industrial equipment. (All new designs to meet both EU and NFPA codes.) Boy we do some things differently. If you are a DIY electrician living in the UK, please check the UK methods after watching this and before you do any work on a ground/earth circuit. UK arrangements can be found in BS7671 (wiring regulations) chapter 54 (Earthing arrangements and protective conductors).

The first animation made it all clear about bonding and how it's done. Thanks. Need to check my garage sub panel to be sure of bonding. Installing an EMP Shield and brushing up on panel protocol.

Honestly, appreciate it Dustin, been watching your vids for awhile now, love that they coincide with life and work… you bring it down to a level many of “us” tradesmen can understand and appreciate.

Ok nobody asked... what the heck did you use to create that animation, and who did the artwork? Too cool.

@willandersen3695

2 жыл бұрын

I kept wondering this too

@johnsanford346

2 жыл бұрын

It says Dave Russo Art in the credits at the end of the video

This is the best information on the subject I’ve ever heard, makes it easily understandable. Thank you Dustin for spreading the knowledge in such a great way...

Literally doing homework on bonding and this solved nearly all my questions. Love the vid

That was the best animation possible. Lol.

@denrayr

3 жыл бұрын

@Flat Sign current does flow through the earth in the depicted example. What's missing in the animation is the neutral bond to ground at the pole.

Ahhhhh, another quality video from our favorite crazy dude. Would like to see some Hazard Location videos. There's quite a bit of confusion I find talking to fellow dudes in the field about Chapter 5

You are supper welcome and Thank You for sharing this info so well! Greatly appreciate you and the people who help make this channel possible!

Thanks for making this video!! The graphics are so helpful, and I use these to answer questions about code that I struggle to visualize from words alone. It makes sense on the jobsite, but you can't rewind and listen over again to the answers your journeyman/ME gives you in real life. Thank you, again!!

@ElectricianU

2 жыл бұрын

Glad you found it helpful. Thanks for watching!

"Grounding Green" is what we were told to remember the difference between grounding and grounded. Works for me.

@exponentmantissa5598

2 жыл бұрын

A grounded conductor is a load carrying wire that is connected to ground. A grounding conductor is not intended to carry loads and simply provides a connection to ground.

That animation was unexpected and amazing.

Going over grounding and bonding in IEC in Austin tx. This really helps thanks!

You are THE BEST instructor I have ever heard on electrical code, safe wiring practices, and your graphics are outstanding to demonstrate paths of current flow and devices in relationship to current flow. Thanks a million.

@ElectricianU

2 жыл бұрын

Thanks for watching, my friend!

You've taught me so much more than my apprenticeship school program. On the job and self research is how you can really become a master. You'd be a cool as foreman to work for. Thanks for the awesome content man keep it up you're helping a lot of upcoming apprentices

@Half_Korean_Being

2 жыл бұрын

jatc or citc?

@juledoren

Жыл бұрын

@@Half_Korean_Being you must be in the pnw! Lol

I truly believe the electrical trade needs to be revamped. The wording, how it's taught.

@lorenzo42p

3 жыл бұрын

the worship of that book.. safety rules are important, but people who work with electricity should understand the why and how for rules, not only and always quoting the book word for word.

@petero2693

3 жыл бұрын

Try legalize...

@bryonleche3627

3 жыл бұрын

You sound like a plumber

@rileyrider1957

3 жыл бұрын

@@bryonleche3627 hehehehe

@exponentmantissa5598

2 жыл бұрын

No. I am an electrical engineer with 40 years experience and one doesnt use incorrect language simply because it makes it easier to understand. That would mislead people. If you dont understand it then you need to study harder and not ask to change the science and language behind it so that one can understand. Electricity kills and I have investigated accidents where the code wording was completely on the mark but the tradesman either didnt understand it or ignored it.

The absolute best explanation of this I’ve heard thus far . I’ve been a electrician over 20 years

I believe everyone can understand the concept of neutral and grounding more clearly in this video. Great job.

Even in the early scenario, (No Neutral/Earth Bonding) There is a path from the main panel ground to the pole ground, The issue is that the resistance in that path may be high enough that it will keep the current below the breaker trip value, but if you've got GFCI, I think that would still trip. I really like the video, good information.

I have to say that I have never been able to comprehend why you bond at the service panel and not a sub panel, watched some videos and still didn't quite grasp it, but this video made it all just click! Great job man, will be tuning in to your channel for sure in the future!

@eldernuru22

3 жыл бұрын

Same here

@toastonryeYT

3 жыл бұрын

Play Enigmatica 2 Expert with guude, no time for electrical work

@keithknechg3217

3 жыл бұрын

Worse yet todays new home apliances bleed current to the frames through the so called"smart electronics" dish washers refrigerators even gas ranges through their programmers....now they want combo arc faults on pretty much all apliances.$$$$😨

I'm a utility locator and a trainer, so finding videos like this golden for me. It gives me great tips for the new hires, and more irrefutable evidence for the veteran locators that know everything and have developed bad habits over the year. Habits like cutting the cable ground because it's .005 seconds faster than unscrewing it. Or when they leave the copper pedestals unbonded because they're too lazy to spend 3 seconds buttoning it up correctly.

This was an awesome breakdown. Appreciate the walk through! Working on updating a house built in the 20s.

"guy needs a raise" awesome video

@DT-abcd

3 жыл бұрын

They will replace him with an illegal. They don't care how smart you are. Happened in West Virginia. Replaced $25/hour with half the price. Same with welders.

@wolfman_jagermeistro8445

3 жыл бұрын

@@DT-abcd yup. Happening all over colorado as well. They want to pay you minimum wage or replace you with mexicans. Ive met several guys now who have been doing electrical for 5 plus years and still make barely a few dollars over minimum wage. Its ridiculous

Awesome great video!

I've been an Electrical Technician for over ten years and have been designing electrical systems for about 6 months now. This is the first crystal-clear distinction between grounding and bonding I've seen. Excellent!

@falsedragon33

2 жыл бұрын

Without explaining the function of the transformer? Everything explained in quick talk, without a single schematic? There wasn't one example quantified with math. If you want to learn it, learn it like an engineer. Otherwise it's just a cook book to keep the monkeys from hurting themselves. What's next, learn ohms law with a pie chart that says ac waves have a resistive component instead of a impedence component? Without an understanding that current and voltage can get out of phase? It really is children playing with guns.

Thanks for the great explanation and animation! Thanks for all the time you spend on helping everyone!

Residential breakers only have the hot line going through them; so, only see current through the hot line. A short to ground would still trip the breaker when the current through the breaker is high enough. I'm sure there are other reasons to bond the ground, but I thought that the main reason was to provide ground protection since there hasn't always been a ground prong. Also, it costs half as much to have a single throw breaker than double throw (just hot rather than both lines).

@guri256

2 жыл бұрын

This is true, but missing half of the story. Let's pretend that you have an ungrounded washing machine with an aluminum body. (Single phase, hot and neutral. No ground) Now, let's pretend you have a copper pipe that happens to be grounded, because the pipe has a physical connection to earth. If you bond the neutral to the washing machine, then when the washing machine runs, you'll get a voltage on the washing machine. This is because the washing machine has some impedance, but the return path has some impedance. This will create a voltage divider effect, so your washing machine might get 6-15V on it. If you touch your pipe, and your neutral washing machine case while it's running, you'll get a shock of 6V-15V. This could be dangerous if your hands are wet, and the conductivity of the water is reduced due to detergent in the water. So, we can't bond the case to neutral. So instead, what if we leave the case floating. Eventually though, your washing machine ages and leaks some water full of detergent, bridging between the case and hot. Someone touching your now hot case and your grounded pipe. This is likely to kill someone. I'm going to assume it's pretty obvious why we don't bond the case to hot, and ignore that option. The solution is to ground the case of the washing machine, so that when hot shorts to the case, there's a loop that will draw enough current to trip the breaker, before someone touches it. It's important to note that if you grab hot with one hand, and neutral with the other, you're not likely to survive long enough for the breaker to trip.

@okaro6595

10 ай бұрын

It is to enable the high current. You cannot get a high enough current with a ground rod. You would need to add additional protection like GFCIs. This is possible and is done in some countries but is not legal in the US. The problem with bonding is that if the neutral breaks upstream the voltage and the current will come back through the ground wire to the equipment cases.

I am not an electrician, and I most commonly throughout my life have worked with DC systems only. So my question is: doesn’t the fact that they are bonded mean that anything which happens on the ground conductor also happens on every neutral in the house? In other words any fault that occurs which puts current onto the ground line, doesn’t that necessarily energize the neutral in the same fashion? For that matter, why isn’t the ground line constantly energized by whatever is coming back on the neutral in the first place? I am clearly missing something fundamental about how AC works in this situation. In the low-voltage stuff I am used to, I would normally employ diodes to make sure that the current is only going in one direction for a specific conductor. Obviously that’s not how it works here.

@j.s3612

3 жыл бұрын

I have this same question. why doesn't current backflow into the ground if it is connected to the neutral?

@kingmal3463

3 жыл бұрын

I thought I was the odd one out and I'm an electrican apprentice😵

@ElectricianU

3 жыл бұрын

I will do a video on this, thanks for the question!

@ElectricianU

3 жыл бұрын

I will do a video on this, thanks for the question!

@AllTrac7200

3 жыл бұрын

Because it is trying to return to its source through the path of least resistance. If the grounding goes straight to the main panel, from there it can go back to its source and not travel through other circuits in the house. That's how I understand it any way.

I agree with r Ward. You get to the point very quickly and make it understandable for a working electrician. You Rock Brother, Keep Preaching. The younger generation really needs this information. As a 57 yrs old working electrician, I love watching. ⚡

As someone who has been master electrician in the electrical trade many yrs this was very well explained. it amazes me sometimes how many people who have worked in the trade many yrs don't even really understand how electrical systems work.

The number one reason we ground and bond the neutral at the service entrance is to keep the neutral a neutral. The second reason is to clear a fault / overload condition.

@dougfoster445

Жыл бұрын

Wait. If u didn’t bond a neutral to ground at the panel you would still have a neutral. Why wouldn’t we have a neutral if we didn’t bond to earth at the main panel

Bro I appreciate you teaching this fashoooo… I got an associates degree in electrical engineering and I’ve been trying to get into the local Union for years. They say I need to take 2 more college classes, meanwhile they let people who have no knowledge or experience in before me. I’m still trying to make my career happen.

@randymagnum143

3 жыл бұрын

Nepotism and graft in a union? Good lord, say it aint so!

@cliftondozier7822

3 жыл бұрын

Don't lose hope , it's coming .

@Blooiis

3 жыл бұрын

@@cliftondozier7822 just gotta stay down and stay solid 💯 💪🏾

@roachymart2318

3 жыл бұрын

Are you trying to buy your book in, or enter as an apprentice? The people who have no knowledge or experience are probably apprentices. Maybe you can find a job where they're accepting people on permit and use that as a way to get your foot in the door.

@Blooiis

3 жыл бұрын

@@roachymart2318 I'm about enroll in these 2 classes asap looking for the ones in my area at the moment. I owe the community college. They fd me over last year but I'm not giving up BAM pow pow 💢

I have been searching for the reason and trying to understand why to not bond at subpanels. No one else I found specifically describes the reason and consequences. Thank you!

Thank you, I don’t work with energy, but find it interesting. My best friend was and he talked about stuff I didn’t understand. This fills in my knowledge gap. Very good format. Thanks again.

This the one I was waiting for

@tfl2155

3 жыл бұрын

Same

@Are_Guy936

3 жыл бұрын

Same

Great explanation. I'll add that proper bonding (and grounding) in low-voltage applications is important as well. In data centers, everything metal must be bonded to reduce extraneous voltage that can cause havoc with computer and communications gear. We must deploy and certify all bonded devices. The costs to deploy such devices can be significant in the price to build a data center. If I recall, we paid something like $20,000 for just the main bond cable (000) install run of 300' back to the power transformer base thru its own conduit run.

@ajinkyadagadkhair5474

2 жыл бұрын

what is (000) means here?

@tarekyared4404

2 жыл бұрын

That sounds like a code violation. Bonding conductors are supposed to be installed in the same raceway as the phase conductors. Bonding conductors are not supposed to be installed in separate conduits or raceways.

@csimet

2 жыл бұрын

@@tarekyared4404 Low voltage data center applications, as stated, not high voltage. They meet industry code and certification standards for DC operations/builds... we build to full Panduit standards and are inspected and certified as such.

Excellent video, love the humor and animated pics! Thanks for the wisdom!

Wow, this was awesome. I know crap about electricity but I was taking notes and I actually was following you. Ty. I just bought a 1984 silver eagle bus and I will need to know alot about electricity, how it works and how to hook up shore power and solar power. I love the channel. Ty.

Why? As AvE might say: 'cuz we need to safely stop Angry Pixies from chooching things to death when they get out of hand.

The idea is to bond ground and neutral only at the main panel so that the ground never carries current except when there's a fault.

@WarpFactor999

2 жыл бұрын

Not entirely true. On larger power panels in industrial applications the ground line can sink a fair amount of current. The number one reason for a single ground to neutral point is to prevent ground loops. A star pattern of grounds to sub panels is preferred. Daisy chaining ground lines across multiple panels in series can also cause sub-panel ground loops. The other reason is to prevent a floating neutral which can elevate to many volts without a proper ground reference.

Digging that intro my man. As always great and informative content!!! Thank you for sharing 🙏

I have never really understood the purpose of bonding the neutral and ground at the main service panel other than its a safety thing. Until now. Great explanation and great animations! LOVED IT.

WE BOND BECAUSE WE WANT TO BE FRIENDS.

@razy7609

3 ай бұрын

Correct answer

13:33 You'd also have current flowing through both the neutral and ground even if you don't have a fault condition. If a subpanel has neutral and ground bonded together, any unbalanced current would flow back to the main panel on both the neutral and ground, right?

@crhu319

3 жыл бұрын

Yes.

@kennykash6089

2 жыл бұрын

In a three-phase system, a perfectly balanced circuit would have no neutral current. You would only see neutral current when you have an imbalance between any of the three legs on the Wye side of a solidly grounded transformer for example. On a single phase panelboard (say a 240V/120V panel in a residence), you'll measure neutral current as that is the return path to the source for 120V loads connected from line to neutral. This is why single phase panels have odd and even numbered circuit breakers. You want a balance between 120V loads from line to neutral on even and odd circuits. Putting all of the 120V line to neutral loads on even numbered breakers (for example) is unwise and would cause an imbalance seen by the transformer upstream of the panel. Ideally, the 240V loads connected line to line shouldn't cause an imbalance. Your ground IS NEVER a current carrying conductor. Ideally, it would see no current it's entire existence. The sole reason for ground conductors is that, during a fault (or short circuit), there is a low impedance path for electricity to return to its source that will quickly open protective devices (breakers) in the circuit where the fault is located. This is why the ground and neutral are bonded in one place and one place only. So electricity has a low impedance path directly back to the source (avoiding ground loops or parallel paths).

There's also a pretty good book out there called something like Grounding And Bonding For The Radio Amateur, which discusses this issue a lot. One of the things they suggest is that you not only need to have good grounding for your electrical power, but also antenna structures, lightning protection devices, telecom entry point, and all sorts of other stuff. Bonding it all together outside of the house means that if there's a lightning strike (even close, not necessarily a direct hit) it'll go _around_ the stuff in the house and not try and find paths _through_ the stuff in the house, be it radio gear or whatever...

@brodriguez11000

2 жыл бұрын

There's one related thing (indirectly related to electricity) that one has to be careful with and that's galvanic corrosion. Not everyone is in that environment, but a lot are. e.g., coastal. So one has to be careful with bonds intentional or not.

Wicked! Very nice for brushing up, when you need it clean,short,and fast.🎯

My grandmas fridge shocks you when you grab the handle.. I think she's cool with it like that, It keeps us away 😒

@alexnunez4019

3 жыл бұрын

Lol...that should get checked out.

@seniorcomputer3292

3 жыл бұрын

Terrible if true

@ianbutler1983

3 жыл бұрын

That indicates a problem with the appliance or the house wiring. It should be checked out. A slight tingle could turn into a dangerous shock in a different place, like a damp basement or something.

@timtitus6846

3 жыл бұрын

If the fridge only has a two prong plug, unplug and plug back in turning the plug around.

@robertl.fallin7062

3 жыл бұрын

A defibrillator so to speak!

Wouldn’t a dead short, hot to ground, cause a huge spike in amp draw, which is what causes the breaker to kick, causing the neutral to not be needed, in that instance?

@invictusdomini8624

3 жыл бұрын

Yea?!

@MB-st7be

3 жыл бұрын

You need to watch the video again

@MrSummitville

3 жыл бұрын

@Jusitn Smith - A huge spike in amps? NO! That is not guaranteed to happen. A short between Hot to Ground, without a BOND between the Neutral Bus and the Ground, will not always cause the breaker to trip. And that is exactly WHY we BOND the Neutral Bus and Ground at the Main Panel - to guarantee that type of fault, is cleared ...

@JustinSmith-ph1le

3 жыл бұрын

@@MrSummitville never seen a dead short, that did not kick a breaker.

@MrSummitville

3 жыл бұрын

@@JustinSmith-ph1le If you do NOT have a BOND between the Neutral Bus Bar the Ground Bus Bar then there is no guarantee that the Breaker will trip when the Hot Wire touches the Ground Wire because the dirt around the ground rod may have 15 Ohms resistance or HIGHER! 15 Ohms at 120 Volts is only ~8 Amps with a dead short and that will NEVER Trip a 20 Amp breaker. And that is why the NEC REQUIRES a BOND between the Neutral Bus Bar and the Ground Bus Bar. It is the BOND from the Ground Bus Bar, back to the Neutral, that causes the breaker to trip when the Hot Wire touches the Ground Wire ..

Thanks man, working on rewiring a yacht with an isolation transformer and now I understand why they say to do this!

@losttownstreet3409

3 жыл бұрын

With an isolation transformer you have an IT-System don't do anything in this video. You'll need a ground fault detection for an IT-System! You don't and shouldn't have ANY ground/earth with your isolaton transformer.

Thanks so much for making this video I’ve tried watching like five other videos about grounding but this one was the only one I can actually understand

If every circuit is connected to the ground by the ground wire does that mean every Circuit is connected to each other because everything is connected to the ground.

@yopatricio1391

3 жыл бұрын

No

@MrSummitville

3 жыл бұрын

@@yopatricio1391 Actually ...YES ! Inside of a home, every Ground Wire is electrically connected to every other ground wire ...

WE BOND BECAUSE WE WANT TO STAY TOGETHER.

@aarone1777

3 жыл бұрын

I thought it was to be let out of jail.

I’ve been doing this shit for 25 years. Had an apprentice ask me this once. I know I probably learned it all those years ago, but it must not have been explained to me as well you just did so I couldn’t remember. Just knew it was essential and that a floating neutral can cause crazy voltages off a transformer. Now I can tell him why.

Work in HVAC. I had a question about this on a job last week. Thank you for a great explanation.

Best animation for the meaning of ground and neutral!!.Congratulations. Thank you!.

Man, this was just amazing. I'm currently studying for a 2-year college program (electrical engineering technology), and I haven't yet come across an explanation of residential grounding in this amount of detail, this concisely. This really helped advance my understanding of grounding in residential contexts, so many thanks for the explanation.

@ElectricianU

2 жыл бұрын

Glad to have helped - good luck with your program!

@Bludcharg4214

2 жыл бұрын

Lol that's why school is trash. This is 2+2 electrical. All of the the stuff you engineers make we always have to adjust 100% of the time because you guys don't know how things work.

You are such a great teacher ! Thanks so much for all the thorough videos you make 👏

I've been trying to figure this out for a long time. Best explanation I've seen by far.

I'm an apprentice and I'm about to start school.. and the journey man I work with recommended your channel as a prep for school.. Thank you for the content 👍🏼

Thanks! Answered my question about wiring a sub-panel in my garage.

This channel is super helpful to study and remember all this material and actually know what’s going on in an electrical system

in florida we bonding the neutral and ground at the service disconet also we bonding at the ground rod and waterpipe.CAS ELEC cont

Hey that was really well done, thank you for referencing the tables and what your using to size conductors off of

Great explanation. I wasn't able to pay attention enough in trade school to fully grasp this concept but you nailed it.

At 3:04 It's also important to note that the primary and secondary neutrals are bonded together at the transformer. So whatever voltage is present at the utility primary neutral is translated to the secondary side and ends up on all customer owned grounded surfaces. In the event of a bad neutral on the utilities high voltage side, this can cause stray voltage at the customers grounding system, as the utility primary neutral current uses all the grounds as the return to the substation. This bond also means that you can have a small current on the grounding electrode or bonded water pipe, even if the main breaker at the panel is off! Its simply the utility using your grounding system as a return path for their primary system.

Incredible use of animations. Thank you so much!

Your videos and electrical theory are the best out there. Thanks for sharing your knowledge in an very understanding way.

This is helping me prep for my test so much 👍😂 keep up the good work I'm going to reccomend your channel to everyone I know!

In the trade,retired,none the less curious how you would explain it.had clients back in the day who were getting " ghost shocks" on kitchen and bathroom sinks.easy fix ,usually a corroded bond at the water main ( or total lack of) and improper sub panel installs.

In Norway we still have partially an older systems with two live wires and they goes each 115volt opposite to create 230volt cycle. The wall plugs on the "two phase" are bidirectional. Grounded plugs have the connection on two strips on the edge of the plugs so you can insert them two ways. Few countries have it that way. Not made these days, we use 400+N, but still the single phase domestic has the same plugs. The neutral is not locked to one side since you can turn the plug into the socket in two ways 180degrees