My house in Thailand is being built with 3-phase. Thailand does not have Split-phase like america, so single-phase is not enough power. I have one of the phases set up for generator/solar. Important things are attached to that circuit

In Germany three-phase is pretty much standard in domestic dwellings. And actually single appliances with a demand of more than 4.6 kVA must be connected three-phase. That rule doesn't come from the VDE, that is from the DNOs here. So a kitchen cooker circuit is usually three-phase here. In most cases fused with 3xB16 A. In modern installations usually 5x2.5mm² NYM-J cables are used, the wiring of the circuit must be designed so that you could upgrade to 3x20 A by simply changing the MCBs or the RCBO. In older installations from the 1980s they sometimes even used 5x1.5mm² for that purpose, sufficient for 3x16A on installation reference method C, but not that future proof. And also, depending on the length of the cable run, not that good when considering the voltage drop. The three-phase has one big advantage: Reduced amount of copper. You need more conductors, but the total cross-sectional area is up to 50% smaller, compared to a single phase circuit dimensioned for the same demand. Just do the math, 5x2.5mm² vs 3x10mm²...and it's easier to install. I find it quite interesting that no one in the UK really considerated this earlier, especially when doing such things like ring circuits to spare copper. The cookers are still 230V, their load is just distributed onto the three lines. Back in the old days of metal heating plates it was a large and a small heating plate on one line (L1 and L2). And the baking oven supplied by L3. That distribution is made inside of the cooker itself, if you decide to connect the cooker to single phase you'll have to insert copper or brass bridges into the terminals of L1, L2 and L3 and connect your single line to one of the three.

All new homes here in Australia have 3phase to the home

Good tidy board install. Probably be seeing a few more 3 phase boards in domestic installations with all these EV chargers and heat pumps to go in.... Hope you have a good Christmas and all the best to you for 2023. Thanks for all the videos this year.

@electrician247

Жыл бұрын

Yeah I guess it will either go that route or the incoming renewables might suffice and buffer demand on the grid. I think the later, time will tell. Have a lovely Christmas and New Year.

@democracyforall

Жыл бұрын

@@electrician247 the white cables, you put them beside the earth-if you can explaine that a bit would appreciat it, thanks.

I will be building my own house in a few years time, long time dream about to come to fruition. I want a TP supply for my new workshop, many of my colleagues said I was daft but now with ev chargers and heat pumps TP supplies will be needed to handle the load. I am also hoping that TP will allow greater solar capacity. I have a few bnib Schneider MerlinGerin boards and a ton of breakers and rcbos squirrelled away for the project but due to the constant reg changes they are obsolete. Looking forward to next video. Merry Christmas and Happy New Year. All the best.

Awesome content as usual! YT keeps burying your vids. I hope you've had a wonderful Christmas and here's to a better 2023 for all

@electrician247

Жыл бұрын

Cheers Jim! Hope all is well for you !

@ForTheBirbs

Жыл бұрын

@@electrician247 playing catch up on videos. I got covid for Christmas. Happy New Year to you.

Interesting, in Finland most domestic households even apartment buildings will get a there phase service. Between 25 and 63A. Retrofits of old buildings will always bring 3 phase.

@electrician247

Жыл бұрын

Yes I think its more common outside the UK to have 3 phase in domestic homes. Thanks for the comment and Merry Christmas

Great presentation as always. Scary times with the probable increase demand for 3 phase distribution within a domestic premises and becoming more like a comercial premises. This is why I am not in favour of any dumpling down of any training just to cover domestic. I appreciate possibly there will not be huge demand for the connection of three phase equipment. There will be number of electricians and trainees under experienced in this area and have probably had chosen to leave three phase alone, because of this. I haven't seen much coverage in the electrical press covering the subject and emphasising the need to be adequately trained for forthcoming demand. I think your training facility is going to become quite busy. Merry Christmas to you and your team. Have a good one.

@electrician247

Жыл бұрын

Traditional apprentices are going nowhere. The new domestic electricians might be the ones to save the grid and requirement for 3 phase. Via renwables efficency. I see immense value in that path. The status quo is a failed system, time to move on.

Happy new year 2023 from #PowerLearningChannel

Hi Mark I'm doing the same! 18 way board in the house going to two 8 way boards in outhouses. I need to add ArcFlash protection - any idea how you do that with these boards? Great content :)

If you get the PoN version of the board then you don’t have the fly leads for the RCBOs. They’re Uber expensive though at circa £80 per RCBO.

personally , as with most DBs id slot the gland plate so much better for moving cables in & out , than bush & lockring , especially if the board has loads of ciruits , trying to add at a later date is a pain for the next spark, IMO

@electrician247

Жыл бұрын

This won't be an issue here and I've show slotting loads on the channel. Something different this time and works an absolute treat. Got about 8 spare holes on this so none issue.

Do you have a video explaining a single or multi phase coming into a meter and then what happens after that - the tails etc?

I used to like the Merlin boards not sure now Schneider. Do they do a trunking interface? and the board we are connecting circuits to there is no fly leads from the RCBO's but I like the sliders though I still. Have a good Christmas Mark.

@electrician247

Жыл бұрын

Acti 9 P boards have no fly leads. These are the same as old square D boards. The acti 9 more merlin style. Merry Christmas!

Very interested in this one as we're going to be in exactly the same position - Three phase supply upgrade for a domestic house because of the workshop and solar. We'll possibly have an 8kVA UPS for the house to go in as well so considering a second single phase board just for the circuits protected by that. What are you going to do for the SPD on the three phase board - A separate enclosure just for the SPD? Also what load has been specified to the DNO - 40kVA? Do the DNO not want to put in an outdoor meter cabinet or are they quite happy to have it indoors? Only comment I'd make is that I'd have rather seen the trunking from the bottom going up the right-hand side so that the supply cables don't need to cross it when they are added.

@electrician247

Жыл бұрын

Spd Will be alongside the tails isolator close to intake as possible. Tails won't cross the trunking, floor to be dug out and containment will be extended to allow the tails to utilise it. Dno wanted the supply internal customer to dig out entry point/hockey stick for them. 40kVA minimum but conversations ongoing with dno.

@yngndrw.

Жыл бұрын

@@electrician247 Thank you!

Just a question... Why no AFDDs? Thought it was the 'new' norm/requirement re: ammendment 2/18th edition? Especially in a situation like this. 🤔 Just asking

@scottsparky1

Жыл бұрын

not in domestic houses,

@electrician247

Жыл бұрын

It's a recommendation which is a should for socket circuits but not a shall unless certain circumstances such as high rise or hmo. That said this will have afdds for the socket circuits. Work in progress 👌👊💪

@Sparks1Plumbers0

Жыл бұрын

@@scottsparky1 Err... yes. In domestic houses!

For domestic property shouldn't the door self close. Like single phase board.

@electrician247

5 ай бұрын

Different product standard for domestic CCUs to attain the 23kVA rating. TPN is different but the same to a point lol. No need for the door to self close. Indeed some single phase CCUs can be left in the open position. Which is more of a concern than this. Good question though.

i hate those functional earths i normall grouph them all together an put them in the terminal marked with a triangle, i was told once thats where they go theres 2 triangles 1 for one side 1 for the other

@electrician247

Жыл бұрын

They are a pita lol

Sorry if I’m being truthful but I wouldn’t call that a neat install, nor would I call it a rough install.

@electrician247

Жыл бұрын

It's an unfinished one is what is it is. I wouldn't ever judge someone's work. Especially in video form and not complete.