Shower supply

[Norn Iron]

Hi everyone need a bit of guidance, I have a shower to wire in an upstairs flat. It is an old fuse wire dist board therefore I am installing a shower consumer unit. The run of cable is only approx 4 metres as dist board is just on other side of bathroom wall. On the consumer unit I am going to install it has a 40A 30mA RCD and a 40A MCB will this RCD be suitable or will it need to be upgraded to a 63A 30mA RCD. The shower is only 8.5KW and will be wired in 10mm.

Thanks

 

[timbobelfast]

The 40 amp 30 mA RCD will be fine as it is the 40 amp MCB that is providing the OCP.

Also, why use 10mm when you will get away with 6mm??

 

[Norn Iron]

Thanks timbo I was gonna use 6mm but just thought if they ever upgraded the shower!

 

[telectrix]

use 6mm, then if they want a bigger shower at a later date, you got yourself another job.

 

[Guitarist]

Not sure whether you are a part P registered electrician or not, but this job is notifiable.

 

[Norn Iron]

use 6mm, then if they want a bigger shower at a later date, you got yourself another job.

I was thinking that but didn't wanna sound cunning lol :cheesy:

 

[Norn Iron]

As far as I am aware it is not notifiable in N. Ireland

 

[nickblake]

BG do a cracking shower DB for £20

 

[Octopus]

As far as I am aware it is not notifiable in N. Ireland

In which case, to avoid future comments about Part P why don't you include your location in your profile?

 

[Sintra]

It's in his user name (Northern Ireland) pronounced locally as Norn Iron

 

[Guitarist]

As far as I am aware it is not notifiable in N. Ireland

Lucky you then.

 

[Norn Iron]

In which case, to avoid future comments about Part P why don't you include your location in your profile?

As it was already pointed out my location is all in my name! :clown:

 

[i=p/u]

Or give them option between cables , but you might confuse them

 

[Norn Iron]

Murdoch just for u I have updated my location and hope this will no longer cause any confusion in relation to Part P :jester: Thanks