Nonsense.No you can't. 1mm is only for lighting circuits.
It's for any load ≤ it's current carrying capacity.
Nonsense.No you can't. 1mm is only for lighting circuits.
You really think so?The hob is labelled 6.8kw (seems massive?!)
Nonsense.No you can't. 1mm is only for lighting circuits.
It's for any load ≤ it's current carrying capacity.
As you know from many previous discussions, although it is badly written (in particular, "power circuits" is not defined), it would seem pretty clear that the intention of Table 52.3 was that 1mm² cable cannot be used for anything other than lighting circuits, whether it has adequate CCC for the circuit or not.Don't see how it can not be allowed, as long as it complies with the usual stuff for Ib ≤ In ≤ Iz etc.
No, not really - hence the question mark. I'm not really sure, but it just seemed a bit odd to me that an induction hob (which I thought was energy efficient) consumes more power than a double oven. It was a throwaway comment really, I'm not suggesting that Siemens put the wrong info on their hobs or anything.You really think so?The hob is labelled 6.8kw (seems massive?!)
Did you have a gas hob before? What was the output of that?
The hob is labelled 6.8kw (seems massive?!)
it just seemed a bit odd to me that an induction hob (which I thought was energy efficient) consumes more power than a double oven. It was a throwaway comment really, I'm not suggesting that Siemens put the wrong info on their hobs or anything.
As I think I said before, the theoretical maximum energy demand of almost any electric hob will be greater than that of an oven, even many/most double ones. Induction hobs generally have even higher maximum energy consumption than traditional ones - but, as I said, 'energy saving' can result from greater efficiency (using maximum energy for less of the time).I'm not really sure, but it just seemed a bit odd to me that an induction hob (which I thought was energy efficient) consumes more power than a double oven. It was a throwaway comment really,
Hobs are very different to ovens.No, not really - hence the question mark. I'm not really sure, but it just seemed a bit odd to me that an induction hob (which I thought was energy efficient) consumes more power than a double oven.
The thing to remember is that the figures you're seeing are theoretical maximum ones. Unless there are fancy control systems (to limit maximum consumption) that relates to the situation in which all the elements are 'powered up' simultaneously. In normal use, the elements will cycle on and off all the time (even if all are being used simultaneously, which will often/usually not be the case), so that the average power consumption will be much less than that theoretical maximum, increasingly so as the appliance becomes 'more efficient'. Hence, hypothetically, a very efficient "10kW" hob may well use less energy (for the same tasks) as a much less efficient "5kW" one.Thanks all - my misconceptions regarding the power consumption of cookers and hobs have been well and truly smashed!
The pragmatic and the official/'best practice' answers to that will probably differ - so opinions/advice will probably differ as well! The important thing is obviously that the cables be 'safe' from any possible mechanical/thermal damage etc.Does anybody have any thoughts on the issue of the cables lying on the floor under the units? Is it acceptable to leave them like this, and if not, can I clip them to the underside of the kitchen units, given that they are already installed and clipping the cables to the wall will be a nightmare?
As you know from many previous discussions, although it is badly written (in particular, "power circuits" is not defined), it would seem pretty clear that the intention of Table 52.3 was that 1mm² cable cannot be used for anything other than lighting circuits, whether it has adequate CCC for the circuit or not.Don't see how it can not be allowed, as long as it complies with the usual stuff for Ib ≤ In ≤ Iz etc.
Kind Regards, John
Indeed they do - but, as BAS often points out, Table 52.3 is rather flawed by not defining a 'power circuit'.None of us ever did, but we could. Today though, I'm sure the regs stipulate a minimum of 1.5 for power circuits.
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