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RCD protection in an IT run office

Former Community Member
Former Community Member
Jolly good morning all,


I am currently carrying out an EICR for an IT based company in their head offices.

Looking at the 12way  3-phase distribution board, I can see there are multiple ‘Office Sockets’ circuits labelled up on 32amp MCB’s and not a single RCD in sight. 

To my knowledge, the use of RCD’s is perhaps not required in this type of environment, but just wanted to check your opinions.


Many thanks you’s and I hope everyone is having a splendid dayV?
Parents
  • Former Community Member
    0 Former Community Member
    It’s a TN-C system. My understanding was that this system with a PEN earthed in more than one place ( for example the distribution side of a PME or MEN  installation) then PEN and live currents are always out of balance, so any RCD will operate, even if there is no fault? Please correct me if I am wrong. Always willing to learn!
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  • Former Community Member
    0 Former Community Member
    It’s a TN-C system. My understanding was that this system with a PEN earthed in more than one place ( for example the distribution side of a PME or MEN  installation) then PEN and live currents are always out of balance, so any RCD will operate, even if there is no fault? Please correct me if I am wrong. Always willing to learn!
Children
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