Wiring 10 vector heaters supplied by 10mm cable.

Moses:

What would be interesting to know, as I'm still learning as a level 3 trainee, is there a way to put 10 heater's with a total  power Rating at 25000 Watts in parralel organized into a single 10 gangway switch Panel. 


​​​​​​Apologies for any inconvenience, but a wiring diagram is what would stick in my head

In practice no, ten heaters each with a loading of 2.5Kw can not be used simultaneously on a single 10mm cable.

It might in theory be possible with some non standard and higher supply voltage, but in practice the heaters are almost certain to be 230/240 volt.

It could be done with three phase, but O/P has stated single phase.

It might just be doable with very hot running MICC cable, but O/P has stated twin with earth.


It is of course possible to connect ten heaters on the assumption that they wont all be used at the same time, but I would be very doubtful about proceeding thus. If ten heaters are available, then someone might turn them all on !

Are these space heaters or water heaters ? If they are very small instantaneous water heaters as used for hand washing in toilets, then it might be acceptable since they are only used briefly and the chance of all being used together is very small.

If space heaters, then I perceive a significant risk of overloading the cable.


Finally, from where is this supply to be obtained ? The total loading is over 100 amps. Very few single phase supplies exceed 100 amps, and it is probable that other loads will be required also. Even with a large 3 phase supply, it would be rather odd to add over 100 amps to one phase.

Moses:

What would be interesting to know, as I'm still learning as a level 3 trainee, is there a way to put 10 heater's with a total  power Rating at 25000 Watts in parralel organized into a single 10 gangway switch Panel. 


​​​​​​Apologies for any inconvenience, but a wiring diagram is what would stick in my head

In practice no, ten heaters each with a loading of 2.5Kw can not be used simultaneously on a single 10mm cable.

It might in theory be possible with some non standard and higher supply voltage, but in practice the heaters are almost certain to be 230/240 volt.

It could be done with three phase, but O/P has stated single phase.

It might just be doable with very hot running MICC cable, but O/P has stated twin with earth.


It is of course possible to connect ten heaters on the assumption that they wont all be used at the same time, but I would be very doubtful about proceeding thus. If ten heaters are available, then someone might turn them all on !

Are these space heaters or water heaters ? If they are very small instantaneous water heaters as used for hand washing in toilets, then it might be acceptable since they are only used briefly and the chance of all being used together is very small.

If space heaters, then I perceive a significant risk of overloading the cable.


Finally, from where is this supply to be obtained ? The total loading is over 100 amps. Very few single phase supplies exceed 100 amps, and it is probable that other loads will be required also. Even with a large 3 phase supply, it would be rather odd to add over 100 amps to one phase.