C
Chris14
For 11kw shower what cable size is required for 15m run?
Discuss 11kw shower cable size? in the UK Electrical Forum area at ElectriciansForums.net
greasy monkeys perhaps:joker:Who in their right mind would want an 11kw shower?
Who in their right mind would want an 11kw shower?
The same loony who surprises you with an 11 kw range oven with induction hob, warming draw twin oven and grill after saying its a double oven and gas hob......
Bit of 6mm and a 32 it is, then.
A 9kw is just as good at getting the grease out of a monkeys fur and i would knowgreasy monkeys perhaps:joker:
Why?6mm clipped direct just on the limit, but you'd need a OCPD of 50A, so 6mm is out of the equation.
Raises eyebrow........mmmmmmmmmmmm........:thinking2:
mines in front of me. Im thinking BS1361 60/80 amp fuse now
If your relying on this method the fault current characteristics of the overload device also need to be calculated and complied to as rcd protection only covers down to earth also to note that the characteristics of the fixed load should be noted that breakdown or aging of element can't cause long time small overloads (been a shower it will usually have thermal cut-out), lastly the cable natural deterioration shouldn't create small overload risk nor should you run the cable where thermal insulation maybe added at a future date.. i.e. running it through an un-insulated loft space.No, sorry, you are wrong.
It is a fixed resistive load, so does not need overload protection, it must have fault protection, which the RCD will provide.
I'm thinking gravity fed shower off the boiler sod all this palava :shocked3:
433.3.1
There is no need for circuit protection if the load is unlikely to carry overload currents. A shower will not overload unless it has a fault. No-one is likely to fix the circuit directly to the outgoing RCD terminals, so fixing it to a CB rated higher than the current carrying capacity of the cable is quite acceptable in such circumstances, so long as the cable can carry the current of the appliance.
A L-N fault will cause many hundreds of amps to flow (in most installations), meaning any CB fitted, whether 50 or 100A will trip virtually instantly. It is only in fault conditions that a L-N short will occur.
Hence it is compliant to run a cable with a 47A capacity, feeding a 45A fixed load appliance, fed via a 50A CB, as there will be fault protection, both via any CB fitted, and via the RCD which will have to be fotted in any domestic premises. There will be no overload protection, but that isnt required, as stated in 433.3.1.
Heaven forbid....................never seen any smart as% comments on here !
I used to rinse my hair with the shower whilst I was in the bath so can't comment lol
Please explain why it is wrong then?if you are going to quote a Reg, namely 433.3.1, then please read it properly and expect those who have functioning brains and experience on their side to interpret it as is intended and not as an excuse for shoddy and dangerous work.
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