Can I run an oven and induction hob off a 32A supply

GDB2222

bouicca21 wrote: »

In a similar set up to OP, electrician said no.

The correct answer depends on a number of factors that have all been mentioned above. Size of cable, and whether it is clipped to the surface or buried in plaster, for example. Diversity means that you don’t just add the maximum loads to work out the amperage.

So, the OP is probably okay with the current wiring, but it may be best to get an electrician to look at it. Get an electrician who has plenty of work on!

George_Michael

Risteard wrote: »

There's nothing particularly funny about straight facts.

"Straight facts" means that there must be something to prove what you are saying otherwise it's not a fact, simply an unverifiable opinion.

As the "Thanks" button is the best way to show that you have found a post helpful or interesting, why not use the number of posts you have made compared to the thanks received to show how helpful other posters find your posts?

Risteard. An average of 0.4 thanks per post.
Doozergirl. An average of 2.65 thanks per post.

Going by "straight facts", I would say that Doozergirl appears to be far more helpful than you.

Jumblebumble

Bedsit_Bob wrote: »

It's borderline, but most devices have a few % margin of allowance, so it should be OK.

Even at the lowest permitted UK voltage, it'd be drawing lass than 3A over the MCB's stated rating.

At worst, the MCB might trip, when all the rings were running at 100%.

I imagine that all 4 rings running at 100% which will be very unlikely will never draw the full 7.5 kw and the full allowance is for startup
The manufacturers are the ones to advise properly
I hate to think how hot a small kitchen would get with 10 KW of heat


As an aside I was bought up in a flat with radial 15 amp round pins
We had a rule drummed in to us that the dishwasher and washing machine were never to be on at the same time as it blue the wire fuse
For years afterwards when I moved into places with ring mains I told guests " Never run both machines at the same time as it will blow the fuses

GDB2222

Jumblebumble wrote: »

I imagine that all 4 rings running at 100% which will be very unlikely will never draw the full 7.5 kw and the full allowance is for startup
The manufacturers are the ones to advise properly
I hate to think how hot a small kitchen would get with 10 KW of heat


As an aside I was bought up in a flat with radial 15 amp round pins
We had a rule drummed in to us that the dishwasher and washing machine were never to be on at the same time as it blue the wire fuse
For years afterwards when I moved into places with ring mains I told guests " Never run both machines at the same time as it will blow the fuses

"I imagine that all 4 rings running at 100% which will be very unlikely" - That's what diversity is all about. Add in the oven also switching itself on and off at random, and there's even more diversity. It's why the OP's proposed setup not only will probably run perfectly well, but also is probably well within the limits under the electrical regs.

Risteard

George_Michael wrote: »

Going by "straight facts", I would say that Doozergirl appears to be far more helpful than you.

I would disagree. My suggestion would be a midguided belief amongst some that her posts were more helpful.

Sometimes the most helpful post is the one which tells them that they must cease and desist.

cool_dude_2000

Gosh. Talk about delusions of grandeur.

Doozergirl

Risteard wrote: »

I would disagree. My suggestion would be a midguided belief amongst some that her posts were more helpful.

Sometimes the most helpful post is the one which tells them that they must cease and desist.

I don't make this about me. You make this about you.

If you were not only 'the most helpful' by using phrases like 'nonsense' or 'utter rubbish' but also took time to read threads that don't immediately appear to involve electrical engineering, then you'd find that either:

a) Doozergirl spends a lot of time telling people that they should cease and desist but she almost always has the good grace to begin to explain why.

b) that you could answer Any Thread about Anything with the words 'nonsense' or 'utter rubbish' and be equally as helpful as you are now. Literally any thread. You don't share your reasoning, so the aim is simply to make people feel bad?

Sometimes you are useful and I agree with you. Other times you are just plain obnoxious and it wipes it all the good stuff out.

You don't have to be nice, you just need to give reasons.
For a fact, no one respects you for a few syllables of rebuttal. The beauty of having knowledge is being able to impart it.

Cease and desist.