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Connecting Multiple Bemco/Ryefield Boards

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.
Parents
  • I agree. Apart from any other considerations, it is common practice to supply a Ryefield board with a 315 amp circuit from the substation. If the largest readily available Ryefield board is fully populated with 60 amp or larger fuses, then the total load may approach 315 amps. Connecting two such boards to the same 315 amp circuit might lead to operation of the substation fuses under peak load.
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  • I agree. Apart from any other considerations, it is common practice to supply a Ryefield board with a 315 amp circuit from the substation. If the largest readily available Ryefield board is fully populated with 60 amp or larger fuses, then the total load may approach 315 amps. Connecting two such boards to the same 315 amp circuit might lead to operation of the substation fuses under peak load.
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