Connecting oven + induction hob

[maciej]

Ok, although this topic really belongs to Electrics Outside of the UK, I though I'll post it here to hopefully get some responses (and also because my question is generic enough and would fit here too). Please do forgive. (And mod, please do delete the other thread if possible.)

Anyway, I have moved to a new flat recently (Paris, France), and in few days I'm going to get new oven and induction hob like these:
* oven - FAURE FOP27908BA - max 3380 W
* induction hob - SAUTER STI984B - max 7200 W

Looking into relevant manuals, the one for hob suggests using 32A MCB (picture on page 7), I can't really find anything relevant in oven manual.

From diversity calculation (assuming it could be applied to induction hobs) it seems (at least in theory) I would need 21A for both of them running on the same circuit (7200 W + 3380 W = 10580 W / 230 V = 46 A - 10A = 36A * 30% = 11A + 10A), or 26A if connecting them through wall socket (but then again, I guess this shouldn't be done this way? Rather with something like //www.diynot.com/network/flameport/albums/2384/9110 ?)

In my CU I have a 32A MCB specifically for kitchen cooker. Which, again in theory, should work fine running both of them.

Now, apparently when ordering them, I get both delivery and installation included in the price, so at the end of the day it's not going to be me doing that, but am just curious if all the things above make sense, and be a bit prepared for the installation process.

Edit: image link and manual links.

 

[AndyPRK]

who will be installing it? A kitchen fitter?

 

[ericmark]

As far as diversity goes with an induction hob the heat areas will in reality be energised for less time than with a conventional hob as all heat goes into the pan non is waisted so with a 32A supply it would do both hob and oven.

However the French system is very different to ours many hobs are designed to work on split phase we see these grey imports in the UK which often have people scratching their heads as to why wired that way.

Also the French do not use our ring final system so restrictions of drawing current over 2kW from the standard outlet will also be different.

As to any laws about who can do what I have not a clue so really this is something which should go to electrics outside UK as the rest of Europe may use same voltage and frequency but the house wiring system is completely different.

 

[maciej]

Thanks for your replies! I knew it is going to work better here.

Darty's technicians would be the ones installing it. However, they'll be more like just plugging it in, making sure everything complies with local laws/standards, and/or advising what should be done/changed (if anything) - they can't do any gas or electricity-related work.

On the other hand though, I don't want to (and probably even can't) do any changes to the installation - it's just a rented flat, and it wouldn't make too much sense tbh. I already have that 32A kitchen circuit available for this specific purpose, and I would very much like to just plug both devices there if only possible and be done with it. Which means, I'll just try to find a good splitter (not sure about the name?) which could handle those 32A (best would be pluggable), and see what the guys going to say to this.

(Also, both hob and oven are made in France, so I'd assume they should comply with local laws pretty well. One would hope so at least.)

 

[winston1]

rest of Europe may use same voltage and frequency .

But they don't. We use 240/415, they use 220/380. The idiot eurocrats call both 230/400 but they are obviously wrong once again.

 

[EFLImpudence]

nominal
ˈnɒmɪn(&#601l/Submit
adjective
1.
(of a role or status) existing in name only.



pedant
ˈpɛd(&#601nt/Submit
noun
1.
a person who is excessively concerned with minor details and rules or with displaying academic learning.



transformer
transˈfɔːmə,trɑːns-,-nz-/Submit
noun
1.
an apparatus for reducing or increasing the voltage of an alternating current.

 

[Taylortwocities]

 

[JohnW2]

Beware the third definition - as we all know, there are 1:1 transformers!

Kind Regards, John

 

[EFLImpudence]

And the second.

 

[JohnW2]

And the second.

Some of it, yes

Kind Regards, John

 

[ban-all-sheds]

But they don't. We use 240/415,

No, we use 230/400. It says so in the Wiring Regulations, have you not been paying attention?

they use 220/380.

No, they also have a nominal voltage of 230.

The idiot eurocrats call both 230/400 but they are obviously wrong once again.

1) Will you please explain what a "eurocrat" is.

2) I suggest you be very careful about who you call an idiot.

 

[winston1]

But they don't. We use 240/415,

No, we use 230/400. It says so in the Wiring Regulations, have you not been paying attention?

they use 220/380.

No, they also have a nominal voltage of 230.

The idiot eurocrats call both 230/400 but they are obviously wrong once again.

1) Will you please explain what a "eurocrat" is.

2) I suggest you be very careful about who you call an idiot.

The wiring regulations are wrong. When ever I measure the voltage in the UK it is around 240 to 245v, rarely below 240v. When I've measured it in mainland Europe it has been around 217v.

The only places that are 230v are the Northern Ireland and New Zealand.

 

[ericmark]

I have measured my voltage a number of times when checking what equipment uses and normally read 233 to 235 volts which OK is a little on high side, but still closer to 230 than 240 and this is likely to be reflected throughout the country now we have domestic solar power. If the voltage is too high then solar power arrays will auto shut down as part of the system that ensures they shut down with a power cut.

But really that is not the issue the problem is although we do have split phase in UK it's rare to supply a house with split phase. However in France I am told it is a common practice after I queried the wiring of grey imports of hobs which had the option of being wired across both phases.

There is nothing to stop us in the UK from fitting 32A sockets and plugging in a hob but we have not selected this method except in commercial premises. However the French culture is to rent rather than buy their house so it's likely they will adopt an easy method of moving from house to house not adopted by the British culture.

I have not worked in France but have worked in Algeria who inherited the old French system and there were some marked changes to the British system. This included the Siemens system of fuse before the isolator so fuse always live. However some good points as well like can't put too large of a fuse in the holder because they simply would not fit.

Not better or worse but different and I know enough not to jump in and recommend how to wire in France as it is so different. As I said to start with this is not an "Electrics UK" subject and needs transferring.

 

[Taylortwocities]

The wiring regulations are wrong.

Winston, please remember what the consequences are if you indulge in Thoughtcrime. Big Brother is watching YOU!

 

[bernardgreen]

Winston

The regulation about supply voltage

For many years the supply voltage for single-phase supplies in the UK has been 240V +/- 6%, giving a possible spread of voltage from 226V to 254 V. For three-phase supplies the voltage was 415 V +/- 6%, the spread being from 390 V to 440V. Most continental voltage levels have been 220/380V.

In 1988 an agreement was reached that voltage levels across Europe should be unified at 230V single phase and 400V three-phase with effect from January 1st, 1995. In both cases the tolerance levels have become -6% to +10%, giving a single-phase voltage spread of 216 V to 253 V, with three-phase values between 376V and 440 V. It is proposed that on January 1st, 2003 the tolerance levels will be widened to +/- 10%.

Since the present supply voltages in the UK lie within the acceptable spread of values, Supply Companies are not intending to reduce their voltages in the near future. This is hardly surprising, because such action would immediately reduce the energy used by consumers (and the income of the Companies) by more than 8%.

In view of the fact that there will be no change to the actual voltage applied to installations, it has been decided not to make changes to the calculations in this book. All are based on the 240/415V supply voltages which have applied for many years and will continue so to do.

230 +10% = 230+23 = 253