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Re Power Clusters

Former Community Member
Former Community Member
Hi there,

Was wondering how to go about putting this together and has to whether there are better ideas.Basically trying to interconnect on different floors with one power cluster to another and at present coming into the first power cluster on the ground floor there are 5 cables each i assume of 25mm2 cables labelled (L1,L2,L3,N & E) now when these are hardwired into the first power cluster would they connect to the RCD of each of the sockets for (110v,230v and 400v) and then these goto power the breakers of the sockets.And to move onto the next Power Cluster on the first floor is a suitable sized cable then connected from the RCD of the first power cluster on the ground floor to the next power cluster on the first floor?.Please help/clarify?.Also to power up a distribution box on the ground floor for the 230v lighting circuit and the office sockets can a 16mm2 cable be hardwired from the ground floor cluster units 32A MCB for 230v socket protection for the power cluster unit.to the distribution unit contained within the office?.Please Clarify?Jimmy
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    I'm very sorry to say that I - for one - can't really understand what you are trying to say.....Your terminology would indicate you're not from the UK?


    If you are trying to use one power source to interconnect different floors, perhaps consider a rising bus bar as one idea. 


    By power cluster do you mean a distribution board or a switch fuse or similar? 


    In the UK RCDs are generally required for all sockets below 32Amps (Single and three phase) 

    In the UK 110V sockets are usually supplied by a 110V transformer - sometimes with its own RCD&MCB on the secondry side - depends on set up - as we have a 230/110V conversion requirement with 55V on each phase to earth. (Combined 110V between each side of the supply - usually coloured brown and blue)


    Your last question about a 16mm cable - this would usually be enough for lights and sockets but this depends on how many lights and sockets, length of run and anticipated load. Sockets would need RCD protection probably. 


    Are you on a construction site? Section 704 I think it is - in the regulations may well apply.


    There are so many variables to my reply that it may well make my answers given here meaningless.

    Perhaps engage the services of an M&E (mechanical and electrical) consultant or an NICEIC Approved contractor QS or similar.
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  • 0
    I'm very sorry to say that I - for one - can't really understand what you are trying to say.....Your terminology would indicate you're not from the UK?


    If you are trying to use one power source to interconnect different floors, perhaps consider a rising bus bar as one idea. 


    By power cluster do you mean a distribution board or a switch fuse or similar? 


    In the UK RCDs are generally required for all sockets below 32Amps (Single and three phase) 

    In the UK 110V sockets are usually supplied by a 110V transformer - sometimes with its own RCD&MCB on the secondry side - depends on set up - as we have a 230/110V conversion requirement with 55V on each phase to earth. (Combined 110V between each side of the supply - usually coloured brown and blue)


    Your last question about a 16mm cable - this would usually be enough for lights and sockets but this depends on how many lights and sockets, length of run and anticipated load. Sockets would need RCD protection probably. 


    Are you on a construction site? Section 704 I think it is - in the regulations may well apply.


    There are so many variables to my reply that it may well make my answers given here meaningless.

    Perhaps engage the services of an M&E (mechanical and electrical) consultant or an NICEIC Approved contractor QS or similar.
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