cooker diversity

[Peter Woodford]

Guys,

bit confused on diversity can you help me out don't have regs book with me at mo

9000w cooker fitting 10mm cable so

9000/230 = 39.13 amps

how do i do diversity cooker has just a normal 45amp d.p switch what size mcb do i fit

cheers

 

[Guest123]

the next common size would be Lenny`s 30A breaker (he should really have said 32A but he still thinks 3036s are new )

I was referring to the Ib not In.

Cant beat a good old 3036 mind.

 

[electro]

[FONT=Times New Roman, serif]ElectricAl what would you use? Tony Blair was easier to get a answer out of LOL...........[/FONT]

 

[electricAl]

Is that a serious question?
If i could tell you which cable to use for what, i could answer all the other people that ask me - and i can`t - so won`t.

I`ve tried to encourage you toward understanding that you can`t competently design a cct without all the relevant info. Anyone who can is a much better designer than me, or an idiot.

I gave you my answer - consider all the factors and use the next Iz rated cable up. I think thats quite within the capabilities of the average spark - it certainly should be.

Otherwise, stick a 16mm in on an 80A

Tony Blair indeed

 

[electro]

Hi electricAl

You have completely missed the point and tried to over engineer a situation that does not need to be over engineered. The secret behind design is knowing when to apply it and when you don't have to. Don't concentrate to much on volt drop in domestic, look more at the installation methods and loading. ElectricAl we will make a designer out of you yet.

Regards

 

[electricAl]

I`ll look forward to that mate. Thanks for answering my question

 

[Amp David]

Check out this post here, its gives details on applying diversity for cookers



http://www.electriciansforums.net/e...forum/10771-information-needed-asap-oven.html

 

[Guest123]

Applying diversity to a cooker is as follows.

Take the full load, 39.13A.

Take the first 10A of this, add 30% of the remaining current i.e 30% x 29.13 = 8.73A

Total load after diversity = 10A + 8.73A = 18.73A.

Also if the control unit has a socket outlet incorporated then you add an additional 5A.

So does that.^^^

 

[Amp David]

I know it does, but was trying to be sarchastic. Just pointing the OP back to the same question he asked a bit ago

 

[Guest123]

I know it does, but was trying to be sarchastic. Just pointing the OP back to the same question he asked a bit ago

Sorry bit slow in catching on to that.

 

[sparks1234]

Are you guys being serious??
Generally cooker supplies go in at either 32 or 40 amps, there is nothing out of the ordinary with the cooker being installed so dont trouble yourself over this.
Read the onsite guide, its there for a reason and you will be well within the capability of a 6 mm cable, assuming the run is not overly long

 

[Amp David]

Thats right

 

[Guest123]

Are you guys being serious??

This is the 3rd time the op has asked the same question.

 

[electricAl]

...but obviously didnt trust the answer.

Obviously hes not the only one. But as Sparks1234 quite rightly said, we`ve been given ample guidance to arrive at a sensible CSA. Quite why some don`t trust this, but trust everything else that the IET tell em` i really don`t know.

No point in doing the maths if you`re gonna ignore the answer...

 

[Guest123]

Think I might make a "sticky" thread regarding Max Demand and Diversity.....seems not many people understand it.

 

[Davey101]

lol, you guys are going to hate me, but-

Do the same rules apply for a hob as a cooker? Obviously, the hob and cooker will normally share the same supply, but not always. How about an induction hob? I've just seen a hob rated at 6.7 kw.
I know its probably all in the regs/osg, but seeing as you like this thread so much.....
Also, whilst we are on the subject, if a cooker is physically incapable of drawing its rated current as electricAl pointed out, then er, why is that its rated current?! Surely, the manufacturers know how much current the cooker will draw, and put that on its rating plate, or is it just a question of them being safe (covering their backs),or lazy