Afternoon all,
I'll be changing my shower soon and am planning the cable route (the existing cable runs diagonally up the stairs to the switch outside the bathroom!).
I'd like to take the cable up the wall from the CU through the ceiling and up the wall in the front bedroom into the loft. For this part of the run I was going to either stick the cable in trunking and plaster over or clip it to the wall, cover with capping and then plaster over. Once in the loft I want to lay it on top of the insulation and clip it to the joists where it crosses them. Then out of the loft, doen the wall to the switch, again, plastered in.
Now originally I thought I'd be OK with 10mm cable but my problem is that the route I want to take the cable over means that the run to the switch will be about 12 metres with a further 1 to 2 metres from the switch to the shower. Will I still be OK with 10mm cable or should it be 16mm to be safe?
Also, I was originally going to fit a 9.8 kw shower so had bought a 45amp MCB in preparation. However, with the slightly increased kw I'm wondering if I should be using a 50amp MCb instead?
Any help, comments or advice appreciated.
I'm aware it's notifiable and notification has been made incidentally.
Cheers
Fred.
I'll be changing my shower soon and am planning the cable route (the existing cable runs diagonally up the stairs to the switch outside the bathroom!).
I'd like to take the cable up the wall from the CU through the ceiling and up the wall in the front bedroom into the loft. For this part of the run I was going to either stick the cable in trunking and plaster over or clip it to the wall, cover with capping and then plaster over. Once in the loft I want to lay it on top of the insulation and clip it to the joists where it crosses them. Then out of the loft, doen the wall to the switch, again, plastered in.
Now originally I thought I'd be OK with 10mm cable but my problem is that the route I want to take the cable over means that the run to the switch will be about 12 metres with a further 1 to 2 metres from the switch to the shower. Will I still be OK with 10mm cable or should it be 16mm to be safe?
Also, I was originally going to fit a 9.8 kw shower so had bought a 45amp MCB in preparation. However, with the slightly increased kw I'm wondering if I should be using a 50amp MCb instead?
Any help, comments or advice appreciated.
I'm aware it's notifiable and notification has been made incidentally.
Cheers
Fred.