Am I using the correct size MCB?

[Knobhead]

Welcome to the “Mrs. Smith” syndrome.

You can get rid of the customer, it cost me £70,000 to get rid of “Mrs. Smith”.

 

[mhar]

I thought about running a 6mm just incase they changed their mind in the future but this is a brand new extension and the whole wall is kitchen units and the oven is raised about a meter high and slides right into the kitchen unit so its not exactly portable anywhere else, he also has an island in the middle of the new kitchen for where his new 'induction stove' is going to be what ever the hell that is because I've never heard of it

Would be a good idea to find out what this 'induction stove' is, it may well scare you a bit!! I (and a few others) have been quite alarmed when a Rangemaster 1700 has arrived with a 17.2kW rating. Even though diversity calcs said I didn't need to I opted for a 10mm supply

 

[Geoffsd]

Would be a good idea to find out what this 'induction stove' is, it may well scare you a bit!! I (and a few others) have been quite alarmed when a Rangemaster 1700 has arrived with a 17.2kW rating. Even though diversity calcs said I didn't need to I opted for a 10mm supply

What size mcb?

 

[SPARTYKUS]

Would be a good idea to find out what this 'induction stove' is, it may well scare you a bit!! I (and a few others) have been quite alarmed when a Rangemaster 1700 has arrived with a 17.2kW rating. Even though diversity calcs said I didn't need to I opted for a 10mm supply

Is that with gas hobs?

Because they include those in the "kW" rating on the back. Yes, the gas bit as well.

 

[SPARTYKUS]

If you intend on using 2.5mm, then use a 20A or a 16A, do not use a 32A as 2.5mm cable can only safely carry 27A!

30 Amps in free air LOL

maybe 32 if you freeze the room......

 

[Guitarist]

I really find it scary that an electrician is asking this question....

 

[micknew]

Makes you wonder.

 

[Knobhead]

I really find it scary that an electrician is asking this question....

Going by the rest of his posts, a totally incompetent one!

 

[mhar]

No, it was electric.
32A mcb as diversity calcs came out to a shade under 30A.
Because of the potential load and the fact that the cable route had to be altered anyway it was little extra effort to go for 10mm. Explained to customer that the cable calcs with diversity didn't require this but that I was uncomfortable having such a potentially large load on a smaller cable and that it would be very messy to change later but that, if required, the existing 32A mcb could be changed later easily and cheaply. They agreed.
Probably overkill, not warranted by the maths, but means that I can sleep without any concerns.
I feel some stick coming my way!