£10,000,000 London Apartment Electrics, Why is it so EXPENSIVE? | ØY15
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- Опубликовано: 10 мар 2023
- Join us today as we work on this beautiful London apartment. In this episode we dive into the world of Control 4, fault finding, along with some 3 Phase Theory. Do you think the apartment is worth the money?
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small note pythagoras only works for RIGHT triangles but this one is isoceles so if you split in the middle you get 2 equal right triangles and get the result
Spent 4 years studying electrical engineering and I think you explained 3 ph voltages better than any of the lectures!
Thanks Phillip!
Just missed out that 230V is not the top of the wave but the RMS 😉
Absolutely - you explain so clearly Cory!
Wow. 4 years wasted pal!!
You need to watch some Joe Robinson's videos then.
at 9:30 you use "Pythagorus". Pythagorus is only for use in right angle triangles, because this is a 120 degree triangle between phases, the best geometric principal is called the cosine rule.
Came here to write this
Thanks Rory! Now I know 😁 - it’s been a long time since Trig 😂
@@corymac I did a mathematics degree before doing my apprentiship(in second year currently). My background sure makes learning in the class interesting.
Also the peak of the sine wave is not the 230V value.
230V is the rms (root mean square). The peak is around 325V from neutral point.
Final point. Could be worth pointing out how dangerous it can be to disconnect the neutral conductor in circumstances where safe isolation has not been done. (obviously not the case here) 😀
I was about to confidently suggest you can cut it in two similar triangles (30, 60, 90) and use pythagorus then. But I don't think that leaves you any better off as you only know the hypothenuse (and some angles)
500th comment wins a prize! 🏆 ( for subscribers only! )
Please note, the 230volts and 400volts values are ‘RMS’ ( or root mean squared values ). Also, it’s Cosine! I wasn’t expecting my post flu brain cardboard scratchings to actually make it into the video 😂. I’ll make these subjects a video asap! 😉
Does it count if I spam comments, first one would be something like 3 and then I’ll work my way up
@@kristiangoransson6104 I’d say post your favourite 500 ØY quotes 😂
230 rms arent you actually getting 325 volts the fact that your meter is rms ? So would it be 400 v rms or is it actually 400v “true voltage “ if that makes any sense … thanks Cory!
Just when I thought Corey couldn’t get any cooler he puts mac demarco on a video
The last sketch was truly informative, haven’t really connected why I always use 1.73.
You managed to teach me something that my old teachers didn’t get through to my below average brain.
I’ve always said that you always learn more from actually doing the job rather than from in the classroom.
So true @twosorts
I’m glad it was beneficial Kristian!
@@corymac ❤️
I•I =I’2😮 square root of 3
Brilliant work, love your theory explanations 👍🏼👍🏼
Thank you!
Nice job explaining the three phase vs single phase which are of course all RMS values (230, 415). Taking a look at the peak values is also very interesting 👍
Glad it was helpful!
👍
Absolutely love everything you do, had your music on loop basically. Would love to hear more, but I get you're super duper busy atm. Mad respect
Ahh that’s so kind to say mate! More music will probably come out this year. Always making it, just don’t Really get the time to produce and release it. Gotta pick my focus right now. Take care and stay well! 😎⚡️ ❤️
Great video Cory. Touching on the note (if in doubt, ask). Absolutely! There's no such thing as a stupid question. If you don't know you ask someone who does. It's the only way we learn.
"The day we think we know everything, is the day we stop learning anything." ~ TheCod3r, 2019
True!
Only "stupid" thing to do is to not ask the questions.
That little note is on almost every wiring schematic I've built a panel to over many years of electrical engineering
Another fascinating vid. Nice one matey.
Every vlog is so good to watch and always worth the wait.
Glad you like them!
Literally just explained this three phase theory this morning 👏🏻 always good to have what you say confirmed 😁
Perfect!
Nice video Cory. I like the importance you allocate lunch in the program of works. Top job.
Thanks Mark! Lunch is what I wake up for my friend
@@corymac preaching to the converted lol.
😂
Love your content pal, so happy for you that you set up on your own. You were always too good to be working for someone 🙏👌🔥🔥🔥
Much appreciated
Crazy to think we can do all that automation on a simple server running home assistant.
Yep and that server can quite easily be a raspberry pi running a Linux based OS which is brilliant for networking and talking to other servers and controllers.
It's crazy what some people will pay for convenience.
Falling torch made me jump. Thought something went into the 3 phase board and shorted/tripped. Learnt something new too with the phase angle explanation. Great work as always, keep these coming.
Me too! 🤕
Banging on the cover and "boom" 😮😂
Just subscribed to your channel after coming across Artisan Electrics, you take pride and care in your work, it's so intricate what you do, very interesting.
Welcome aboard!
@13:41 nearly gave me a heart attack 😂. ‘Nothing but heavy duty straight to my brain’ . You’re too funny 😂
Yet another great video! Thanks Cory! 😊
My pleasure!
Great video as always Cory 👍
Glad you enjoyed it!
Brilliant work and another great video, very interesting!
Glad you enjoyed it
Good stuff.Always something interesting with your videos
I appreciate that!
Superb video Cory, I learnt a lot in this one!
Glad to hear it!
A very good explanation of 3phase, except peak voltage of each line is approx 320, the average is 240 (0.707 times peak voltage); total between lines approx 590 x 0.707 is 415. Also having over stuffed trunking you getting more heat, so you need bigger cables; making it even more stuffed. Bigger is always better.
Correct 👍🏼. But as per ‘the book’, thanks to the EU we are now on 230 volts, even though we aren’t 😂
Thanks for that! This is important to know when you start rectifying! 😛
👍
Hi buddy sorry not been commenting last few vids but been on some strong medication and just wanted to say never stop doing this work it is you 1000% your top in all you do and take time out to explain all that you do, love to all. X
Sorry to hear that woody! I hope all is well, am I remembering right that I installed a charger for you many moons back with Artisan? Thanks for the support
@@corymac hi Cory unfortunately that was not me buddy, I’ve got cancer undergoing therapy for the next two years it ant going to win,,,,,, so when you get the big jobs that need containment and all well I am free just sitting here, you be safe and don’t stop never give in,, love to all. X
So Sorry to hear that Woody. All the best with your treatment, you can do it! Diamonds are made under pressure
@@corymac thanks Cory that’s kind of you buddy I will never give in or stop as a single parent of three there no time for me,,,,,,, plus being off from work since 2019 I’ve got the cleanest power tools hand tools drill bits plumbing equipment door control /access cctv tools,,, my daughter has a skip in mind to free up space which I understand but with a heavy heart BUDDY I thought well with my fingers crossed more like it that there would be someone that would give this old boy a chance to shine once more or a few times would be nice. You be safe please and take care in all you do, and never stop. Love to all. Woody xxxxx
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@0:15 i luv that 2 thumb gesture... 🥳😋 it also was in Supernatural S7E6 @~18m40s
👍🏼👍🏼
Excellent video. In my country between the phases its 415v. I see you handle an unfamiliar job with confidence and stay level headed.
Blessings keep the good work up
Peak times is probably around 400V (?)
Another informative and engaging video that people can really take something away from. Great work echoed by the comments.
Glad you enjoyed it!
Amazing video with fantastic educational value!
Glad you enjoyed it!
Also love your 3-phase explanation.
Great videos as always, just not often enough!!! Keep up the great work🤙
More to come! It’s hard to keep up quality with quantity as it’s super expensive and time consuming making videos
@@corymac wasn't a criticism it's just great to see quality work with comedic value 😁 I have learnt a lot from all your content.
Super expensive and time consuming is a poor excuse.
We need more entertainment!!!!!!!! 😂
Great video as always! 👍🏼
Thanks again!
Great video Cory. Up there as one of my favorites of yours, nice to see the normal day to day chill jobs. Great to see Chili electrical make another appearance too, great guys!
Glad you enjoyed it. 🌶️ are legends
Cory it would be awesome if you did a video of how you got into Electrics, where you started , what type of work you've done, where you did your apprenticeship and how you obtained all your experience etc it would cool to know how it all started for you.
I’m about to release a members only video on this very subject 😃
@@corymac Great im going to become a member then :)
👍
Thanks for that video Cory; nice work on the multi-million property. Is there no chance of seeing the HVAC engineers' layout drawings to see where the mystery air handling unit ought to be?
While you're in the West End, have a cheeky half of shandy in The Audley, the Hauser & Wirth art pub at the corner of Mount Street and South Audley Street in Mayfair. The electrics there are a work of art in themselves, I don't know who did their wiring - maybe it was you?
Noiiiiiiiiiice Appartment. Great video Cory
Glad you enjoyed it!
Great video cory! Found the information about trigonometry and pythagoras theorem very helpful as I am about to be doing my level 3 exams. Would be awesome if you could do a more indepth video about it.
Glad it was helpful!
I’ll be making a series of shorts on these subjects asap Connor
Loving these videos 👍🏻
Glad you like them!
Great video, studying second year as an electrician in Sweden. New sub earned!
Welcome aboard!
your explanation of 400v for 3P was great, thank you
You are welcome!
Great video!! 🤘🏼
Thanks!!
Just love it dude. Nothing but good vibes.
Glad you enjoyed it!
✌🏽
Another fantastic video
Glad you think so!
@9:39 i would use the "law of cosines": c²=a²+b²-2·a·b·cos 120° where a=b=230 hence c=sq.root(2·230²·(1-cos 120°))=230·sq.root(2-2·cos 120°)=230·sq.root(2-2·(-0.5))=230·sq.root(3) since cos 120°=-0.5
When I trained as a Carpenter in the 80's the Electrician apprentices I worked with said 3 phase was one of the hardest parts to learn.
It’s tricky, but once it clicks it makes sense!
Hi, Cory. Love the electrical content you've been posting. you'll find that the pythagorean theorem wont solve that type of triangle, the Cosine Rule is the appropriate method for non right-triangles.
Hi Cory, I have just started my apprenticeship 7months ago doing domestic. How were you able to get knowledge/experience of stuff outside just regular domestic work(fuse board changes, new lights, rewires). Seeing you going abroad and working on these cool projects is really inspiring but I have no idea how these opportunities would even arise. Cheers!
That’s awesome man! I’ve just gained experience from constantly trying to put myself out of my comfort zone, and not being afraid to ask for more responsibilities. Get the basics down, and then follow your curiosity. You’ll smash it mate, it’s a fantastic and broad industry
How do you find the apprenticeship?
One thing I would say to you is to try not get overwhelmed. The electrical industustry is forever changing and extremely challenging. Just take each day as it comes.
I think 'if in doubt ask' must be the standard CAD get out clause, I find it on every drawing I use. The 1.732 is derived from the Law of Sines for triangles rather than Pythagoras' theory. The sides of a triangle divided by the Sine of their opposite angles are all equal. VLine is opposite a 120 angle and VPhase is opposite a 30 angle. Setting VPhase to be 1V makes life easier, so you end up with 1V/Sin(30) = VLine/Sin(120). So 1V/0.5 = VLine/0.866, gives 2 = VLine/0.866. Re-arranging to find VLine gives, VLine = 0.866 x 2, which solving gives the 1.732 ratio.
You also end up with the same value if you draw out the vector sum diagram and then measure the resultant line between VPhase1 + (-VPhase2).
So true
I wish more people took that advice.
Probably the most knowledgeable electrician on RUclips genius
Love the video, only got crazy from the out of focus on the control 4's
You and me both!
Great as always
Cheers Mike 🤓
Excellent video! ❤
Thank you!
Great video Cory 😎 Is there an update on the missing packout scooter?
Thanks Richard!! Hang fire and you’ll find out 😉
So that’s the second use for trig I have found outside of school. The first is surveying and total stations.
Nice explanation but it is worth pointing out that on the waveform showing the sine waves for each phase the maximum voltage isn't 230v as 230v is the nominal RMS (root mean square) figure - the actual voltage at the peaks will be up to 357v or thereabouts - it depends on the actual voltage delivered which in the UK can be as high as 253v RMS. This is why the insulation ratings on cables are based on the maximum peak voltage rather than the RMS and so seem larger.
You’re correct! I’ve pinned the comment, and will make a video on RMS soon. I just kept it simple for now to understand the premise of three phase, also, I was just coming out of a flu as you’ll probably hear in my voice 😂. Thanks for pointing it out!
Corey, you would make a great teacher!
Thank you!
"You're never too good to make a mistake" 👏👏
SPD should go where the 63A C type breaker was fitted, great the way you explain the supply, I've learnt something great vid
Glad it helped
Crabtree make a SPD kit for these DB's and they definitely don't go where the MCB is. The last one I fitted comes with a Din rail bracket to mount inside the enclosure low down on the left hand side. They even have a knock-out on the cover ready for the SPD
Great video
Awesome work Cory! Ive had the same situation with Units behind mirrors at work. Only our customer knew where it was and how to get to it. If it wasnt for the customer, we wouldve given up too😅
😂😅
👍
Hi Cory.
Great to have the Cardboard Classroom back, Love the Trig. Next time Y and Delta Transformers and the beauty of their Design. Old Nicola Tesla is my hero.
Thanks Eamonn!
Loving the mac demarco
A man of taste I see
I came here to say this
For reference, i remember when i was taught it was "why we use 110v transformers" because they go between +55 to -55 which is never more than "touch voltage"
That’s a CTE - As explained in the previous comment :)
Could the other circuit be the boost switch for the MVHR. Possible there would be a Mev unit usually you can hear it humming
I'm glad you use the torch designed by Apple but costs the same as a Unilite.
Liking the 3 phase explanation. Bets the normal reply from some of it just is ok.
I am in doubt! ;-) What is the maximum permitted length of the cables to the SPD...?
Cosine rule, or more like Cory Rules!!!💪 Nice one!
692 is another way to make the formula but is often easier to remember for 3 phase power of onsite
Is that assuming 400v?
Very good video as always. Be careful with that drink I got addicted to it, I was drinking loads. Really nice though. When that drill fell I thought you blew yourself up, glad you didn't.
Thanks!
Looks like they’ve used MCBs designed for the 3phase Crabtree board
Pythagoras only works for right-angle triangles. You could split that triangle in half to use it though
I used to go to9 the Ritz on a Sunday evening for a drink. They had by far the best nibbles on the table than anyone else, the orange juice freshly squeezed by the bar man. The service was almost as good as Cory's.
😎🤌🏼
Good to see you bringing this up, but the 230 V of a single phase to earth/neutral is the RMS voltage. Nearly all multimeters give you the RMS value which is equivalent to the heating effect of 230 Vdc. Drawing 230 at the peak of the AC waveform is incorrect and could confuse the youngsters.
Correct, my bad for not being clearer
Hello Cory thanks again for your channel
Please what's the name of your cameras you used to filming this video 📷
Hi mate - Sony A6400
@@corymac thanks bro
230 volts times square root of 3 or 1.732=400volts, no one phase is reaching it's peak at the same time. Each phase is 120 electrical degrees apart. In the US, most common nominal systems are 277v/480v or 120v/208v. Canada also has 347v/600volt systems.
Good video, only thing i understand by now is than more expensive certain apartment gets the more useless appliances and light controls it has. No some ppl are just want everything which they barely use.
As I hope people have already mentioned... The peak voltage of each phase is 340v, not 240v. 240v is the RMS value or "equivalent DC value"... i.e a DC voltage of 240v will deliver the same power across a resistive load as 240v AC.
Why is RMS the "standard" used term and not the peak?
@@Jay369 if you connect 240v DC and 240v AC RMS to the same resistive heating element, it will deliver the same temperature so back in the early days of the grid when they were battling over whether it should be AC or DC, I guess they needed a way of expressing an equivalence with the DC system.
@@Chris-hy6jy
Thanks for the reply. Much appreciated 👍
You went all John Ward on us but it was good!
The guy that taught me all I know 😂
😂
Lovey video. I just love your style. You are cool bro
Thank you so much 😀
I can’t believe that oy electrical is replying to me😀😀😀😀#feeelingstarstucked
Best start believing sister
Email me for a signed croc
This is one crazy system 😳
I would bet the correction factor for those cables in the trunking was not considered let alone the space factor at 45%.....
It hurts my eyes😢
Knowledgeable guy to be fair.
Cool Cory, I used to do IT in London👍
Nice one David! How did you find it lugging your tools onto the train?
starting to think this cupboard should contain an industrial sized cabinet (say 2m tall, 1m wide or so, with a dozen of horizontal DIN rails)...
Great video! Appreciate the shoutout!
No problem 👍
This deserves a like fir that explanation
Thankyou!
Sure does 👍
i love what control 4 can do a good friend of mine has it in his home i just wish it wasn’t such a expensive setup
It’s pretty great!
Couldn't quite tell from the vid, were those panels only partially numbered up on the wiring?
Having done industrial panel building work I find it really l frustrating when people don't fully number them up and reference on a the drawing.
They were barely labelled or number at all in any legible way 😩
Love the video, but are the crocs making a come back??
They never left
Corey what a handsome and talented young man you are! Keep these videos coming! Loving them!
Nan, is that you? If so, thanks you. And also, I’ll pop over for tea and biscuits shortly 😉😘
Big fan of the Mac Demarco track! 👌
A man of taste
This is "My kind of electrical" 😂
I came here after you left artisan electrics, I'm a bench joiner bye trade and enjoy my job. But always enjoy seeing how other trades operate. Your knowledge and expertise really shine through in this video. It's nice to see other young crafts people doing as well as I am in my chosen field. Keep up the great content... and remember to tidy up after yourself. Love from all joiners 🤣😉
Welcome aboard! Thanks James
Nice video, I like the drawn explanation. I always thought it was +120v to -120v giving us the 240v range?
That’s in a CTE transformer, ( centre tapped earth ). Commonly used on building sites :)
We don’t tend to CT the earth on our transformers in the uk grid.
There is no + and - . Its AC, not DC
Hi there! Pretty interesting job! Can you really use singles in a trunking that is not secured/ bolted together and hence access from untrained persons is easy?? Also the 3ph theory is correct but the Pythagorean theorem is only used on right angle triangles! Cheers!!!!
Singles in trunking is acceptable according to the regs
As we talked about last night pal. Old C4 install & quite poorly designed by the original installers. All the lighting panels I've ever built generally have 1x rcbo per dimmer module on C6 curve. I bet none of those are type A too... all those led lights potentially DC blocking the original circuit... more than likely the inrush of the lights causing it to trip.
Yeah, it’s a dumb way of doing it!
👌13:40 TAKE COVER! 🤣😂🤣😂🤣😂
Oh wow... Having all Leitungsschutzschalter on one phase is kinda silly?
Btw if you are at it you should really ask the client about adding a Arc Fault Circuit Interrupter (AFCI), will save his ass from burning up after a few years and eg. Power sockets getting old
Wear to do guy’s get your your WORK TROUSERS, they are the LICK 🤩