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Generally I would use two circuits. However, as they have two ovens, it may suggest they do a lot of cooking/baking, so if not too far a run I might also consider 3 circuits.
Discuss Oven and hob on same MCB and diversity. in the UK Electrical Forum area at ElectriciansForums.net
I bow to your superior knowledge on all of these things, but can you get gas clocks, light and rotisserie these days, I know about gas lights, but? ?The burners are gas, yes, but for some reason the clock, lights and rotisserie are electric.
I didn’t agree with that concept myself; I treated individual appliances separately when apply diversity, for the reasons you’ve now been presented with.I realise we have come to the end if this thread, however.... as coincidence happens a slightly different yet similar scenario has arisen.
The customer wants 2 x separate single ovens next to each other with an induction hob above.
The previous answers in this thread suggest treating a separate hob and oven as a single appliance with regards diversity, and I can see that makes sense. We can't just keep adding an appliance on and classing it as one unit though, as single units have thermostatic controls. How would you apply diversity in this case? I'm inclined to use my initial maths here and class it as 2 appliances.
This is wrong also though. Q is actually a known value determined by the appliance(s), the 32A is the unknown value which needs to be worked out via calculation.This Math looks wrong to me, forgetting the incorrect use of Q,
Incorrect
2 x (10A + 0.3Q) = 32A
20A + 0.6Q = 32A
0.6Q = 12A
Q = 20A
Correct
2 x (10A + 0.3Q) = 32A
20A + 0.6Q = 32A
32A - 20A = 12A
100% of the remaining = 12A
Therefore 60% of the remaining = 7.2A
Value of Q = 7.2A
Circuit then has a 4.8A buffer
Then if you actually take into account load 32A is more than sufficient
Reply to Oven and hob on same MCB and diversity. in the UK Electrical Forum area at ElectriciansForums.net
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