D
dw89
Hi All,
Many thanks in advance for any advice, I know this is the place to ask:blush5:
Basically I am a 'consumer' who's having a pv array fitted and I want to check what the contractor's intending to do. I built my current house so I don't want it going up in flames! Unlikely but I'd rather check here first than have something go wrong.
So, I'm clear on everything apart from AC connection from inverter to CSU. I have FOUR CSU's (single phase 18kVA); First 'main' CSU (in garage) takes tails from meter and supplies power to THREE sub-main CSU's (one on each of three floors) via 16mm T&E. Each of them are 10-way Volex dual RCD (one for sockets, one for lighting). I have been told (and not being an PV expert in any way) that they will connect to one of the CSU's (happens to be one on top floor - in warm-roof living space) using a spare way. My questions are as follows:
1) If they connect the AC supply from inverter to this 'sub' CSU surely the power generated will 'only' be available to that CSU and the sockets/lighting connected to it (i.e. everything on top floor) and other floors/equipment will not benefit? It's important to me that the power generated is available to the whole house so how does this work? Is it ok to connect to this sub-CSU or should the connection really be made via SWA through the ceiling voids to the main-CSU which provides power to all the sub-CSU's (i.e. one in garage)?
2) Is it ok just to connect straight to an RCD protected MCB like this in a unit that is already protecting lighting and sockets? I just saw, when googling, this post...which has prompted my worried question here! http://www.electriciansforums.co.uk...m/51532-ok-connect-ac-cable-mcb-consumer.html It may be, of course, that they've just not told me everything but I just want to check obviously because in the wake of the details in that post.
I especially want to get this right as, ultimately, I want to get a PowerWall fitted when they arrive in the UK next year. Oh, and just so you know, equipment will be JA Solar (panels, inverter, optimisers etc).
Any and all suggestions greatly appreciated.
KR, Dave
Many thanks in advance for any advice, I know this is the place to ask:blush5:
Basically I am a 'consumer' who's having a pv array fitted and I want to check what the contractor's intending to do. I built my current house so I don't want it going up in flames! Unlikely but I'd rather check here first than have something go wrong.
So, I'm clear on everything apart from AC connection from inverter to CSU. I have FOUR CSU's (single phase 18kVA); First 'main' CSU (in garage) takes tails from meter and supplies power to THREE sub-main CSU's (one on each of three floors) via 16mm T&E. Each of them are 10-way Volex dual RCD (one for sockets, one for lighting). I have been told (and not being an PV expert in any way) that they will connect to one of the CSU's (happens to be one on top floor - in warm-roof living space) using a spare way. My questions are as follows:
1) If they connect the AC supply from inverter to this 'sub' CSU surely the power generated will 'only' be available to that CSU and the sockets/lighting connected to it (i.e. everything on top floor) and other floors/equipment will not benefit? It's important to me that the power generated is available to the whole house so how does this work? Is it ok to connect to this sub-CSU or should the connection really be made via SWA through the ceiling voids to the main-CSU which provides power to all the sub-CSU's (i.e. one in garage)?
2) Is it ok just to connect straight to an RCD protected MCB like this in a unit that is already protecting lighting and sockets? I just saw, when googling, this post...which has prompted my worried question here! http://www.electriciansforums.co.uk...m/51532-ok-connect-ac-cable-mcb-consumer.html It may be, of course, that they've just not told me everything but I just want to check obviously because in the wake of the details in that post.
I especially want to get this right as, ultimately, I want to get a PowerWall fitted when they arrive in the UK next year. Oh, and just so you know, equipment will be JA Solar (panels, inverter, optimisers etc).
Any and all suggestions greatly appreciated.
KR, Dave