F
fannybaws
Hello All,
Done a search and have had a read of other posts but cant find any help with my questions. It is quite specific though
I plan on installing a power shower. It is the gravity fed type that doesn't heat the water so relatively low power. Thinking of a TRITON AS2000, I would like advise on the best way to wire it under these circumstances:
I am in a top floor flat with access to the attic above. There is an old shower circuit (radial) 6mm2 in place from an old shower now removed.
I am going to use this existing cable from the CU to the attic (Dont fancy running a new one as the cable run to the CU is a nightmare - between 2 bay windows). 6mm2 is obviously overkill (recommended 1mm2 off a ring main) but it is there and will be getting used ! I am wondering if I could use this cable to stick a light up in the attic as well. To add to the confusion I need to fit a 30mA RCD in line as the old CU downstairs wont take one!
What is the best way to do this ? I have thought of the following options:
1) Terminate the 6mm2 in the attic into a junction box, from here, wire a light (via a switch) and the shower (via an inline 30mA RCD and a 3A fused pull switch) in parallel. (appropriate MCB in CU.)
2) Terminate the 6mm2 into a 2 way RCD protected mini CU, from here wire the light and the shower The 2 way CU will have appropriately rated MCB's as will the main CU downstairs.
3) Forget the light, step the 6mm2 down to 2.5mm2 in the attic via a junction box (Doubt the terminals on the shower will take 6mm2).
I realise the 2 options involving the light have drawbacks. I guess a shower circuit should have its own circuit and I imagine a second 2 way CU upstairs should be wired from the source as opposed to a slot in the first CU.
Is any of these options do-able ? Or are there any better solutions that don't involve running a new cable to the CU ?
Any help greatly appreciated
Sorry for the length of post!
Done a search and have had a read of other posts but cant find any help with my questions. It is quite specific though
I plan on installing a power shower. It is the gravity fed type that doesn't heat the water so relatively low power. Thinking of a TRITON AS2000, I would like advise on the best way to wire it under these circumstances:
I am in a top floor flat with access to the attic above. There is an old shower circuit (radial) 6mm2 in place from an old shower now removed.
I am going to use this existing cable from the CU to the attic (Dont fancy running a new one as the cable run to the CU is a nightmare - between 2 bay windows). 6mm2 is obviously overkill (recommended 1mm2 off a ring main) but it is there and will be getting used ! I am wondering if I could use this cable to stick a light up in the attic as well. To add to the confusion I need to fit a 30mA RCD in line as the old CU downstairs wont take one!
What is the best way to do this ? I have thought of the following options:
1) Terminate the 6mm2 in the attic into a junction box, from here, wire a light (via a switch) and the shower (via an inline 30mA RCD and a 3A fused pull switch) in parallel. (appropriate MCB in CU.)
2) Terminate the 6mm2 into a 2 way RCD protected mini CU, from here wire the light and the shower The 2 way CU will have appropriately rated MCB's as will the main CU downstairs.
3) Forget the light, step the 6mm2 down to 2.5mm2 in the attic via a junction box (Doubt the terminals on the shower will take 6mm2).
I realise the 2 options involving the light have drawbacks. I guess a shower circuit should have its own circuit and I imagine a second 2 way CU upstairs should be wired from the source as opposed to a slot in the first CU.
Is any of these options do-able ? Or are there any better solutions that don't involve running a new cable to the CU ?
Any help greatly appreciated
Sorry for the length of post!