Shower query

[sparked out]

A friends shower switch burnt out due to loose connection the problem is its a 10.5KW shower 40A wylex fuse and 6mmTE. Would the 6mm be ok with a 32A fuse and RCD, he does not want carpets lifting to run in a new 10mmTE

 

[Notsosmart]

Well you could try that, but unfortunately the demand of the shower is 45.7 Amps so a 10mm cable (& RCD etc) is your (& his) only option.

P.s. That is probably why the cable is burning out ~ another reason not to have fuses within a domestic situation.

 

[sparked out]

Well you could try that, but unfortunately the demand of the shower is 45.7 Amps so a 10mm cable (& RCD etc) is your (& his) only option.

Thanks , but is that not on full blast because the existing cale is not rated for that load.

 

[andrew692003]

Replace the switch and then replace the shower with a 8.5kw shower! Cheapest option.

Replace the switch and run in 10mm supply cable! Dearest option.

You would need to inform the customer that he would really need to supply the shower through an RCD.

Cheers

 

[Notsosmart]

That doesn't excuse you in the eyes of the law when someone not in the know turns it up to 'full blast' & burns the house down. You need to impress upon this guy (& yourself) the dangers of cutting corners (i.e. costs).

 

[sparked out]

That doesn't excuse you in the eyes of the law when someone not in the know turns it up to 'full blast' & burns the house down. You need to impress upon this guy (& yourself) the dangers of cutting corners (i.e. costs).

Thanks so the option would be 10mmTE an a 40A breaker with RCD

 

[rocker]

Thanks so the option would be 10mmTE an a 40A breaker with RCD

Yes or a smaller shower (still rcd)

 

[pushrod]

Thanks so the option would be 10mmTE and a 40A breaker with RCD

The 10.5 kW shower really needs a 50A breaker and rcd protection if you are using that unit with the 10mm T&E.

 

[martysparky]

I think it safe to say it would be good practice to advise a 10 mm cable for a new shower circuit as standard because it is likely at some point the customer will call a plumber or someone else to upgrade the shower.

Thus it could be acceptable that it is likely that the load could be increased in the lifetime of that cable. i.e. reg:132.3 NATURE OF DEMAND: Loads to be expected on the various circuits. also reg: 132.7 nature of location.

just my thoughts but please correct me if I'm wrong.