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Connecting Multiple Bemco/Ryefield Boards

GHEC
Ok I have a new build project where one Bemco/Ryefield board is not large enough to cover all apartments. 


I will need to install 3 to cover the number of outgoing ways required.


My questions is this. Given that there is one incoming bulk supply, what options are there to split it between the three? I know Lucy do an MSDB with a vertical busbar. Would the DNO accept daisy chaining these together? Or should we use a busbar chamber and tap-off to each board?


Any advice would be gratefully received.
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    Presumably this is the equivalent of an electric combi-boiler, and instant hot water, no storage needed ? 

     



    Correct. They are instantaneous water heaters serving domestic hot water only. The manufacturer has recommended a diversity of 15% based on their previous projects.


    I would have to find out what is being specified for the hobs. Being able to take 3-phase to the hobs would be good. I'll have to put it to the client and kitchen designer. But I think I'll end up with 100A fuses just to get the discrimination/selectivity.
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  • 0

     



    Presumably this is the equivalent of an electric combi-boiler, and instant hot water, no storage needed ? 

     



    Correct. They are instantaneous water heaters serving domestic hot water only. The manufacturer has recommended a diversity of 15% based on their previous projects.


    I would have to find out what is being specified for the hobs. Being able to take 3-phase to the hobs would be good. I'll have to put it to the client and kitchen designer. But I think I'll end up with 100A fuses just to get the discrimination/selectivity.
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