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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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    John Peckham:

    The BNO network is un-metered and it is one of the jobs on the BNO to prevent abstraction by restricting access and locking the Ryfield boards.


    The bigger jobs I have designed using bus bars have been supplied straight from a transformer in AWAs to a panel board with MCCBs protecting SWAs to the end feed units on the bus bars. The supply to the landlords bus bar is metered.




    Im surprised the service providers allow for an unmetered supply to be taken from a panel board. I was under the impression any supply must be metered with the exception of MODE/RYEFIELD/BEMCO boards as they are sealed shut. Is there definitely not a meter at the incomer to the panel board and the apartment meters are just check meters billed by the landlord? would still form part of the BNO network it would just mean tenants wont be able to change energy supplier as the MPAN will be at the incomer.     

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  • 0

    John Peckham:

    The BNO network is un-metered and it is one of the jobs on the BNO to prevent abstraction by restricting access and locking the Ryfield boards.


    The bigger jobs I have designed using bus bars have been supplied straight from a transformer in AWAs to a panel board with MCCBs protecting SWAs to the end feed units on the bus bars. The supply to the landlords bus bar is metered.




    Im surprised the service providers allow for an unmetered supply to be taken from a panel board. I was under the impression any supply must be metered with the exception of MODE/RYEFIELD/BEMCO boards as they are sealed shut. Is there definitely not a meter at the incomer to the panel board and the apartment meters are just check meters billed by the landlord? would still form part of the BNO network it would just mean tenants wont be able to change energy supplier as the MPAN will be at the incomer.     

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