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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?
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  • 0
    While BS7671 requires the same level more or less in new works, what you permit to continue in existing is a different matter - we are not rewiring thousands of buildings overnight each time the regs change.

    Hence risk assessments and partial solutions like RCD protected sockets in the floor plate. (RCD sockets not really accepted by current BS7671, only ones back at the consumer unit)

    Cables in earthed armour and so forth do not need RCD protection, except if supply is TT, then not at 30mA. and you may decide 30mA RCD protection is not needed for sockets in a business setting where what is plugged in is controlled, and the risk has in effect been managed another way.

    You may then defer adding RCDs until you rewire in 20 years time or whatever.


    M.
Reply
  • 0
    While BS7671 requires the same level more or less in new works, what you permit to continue in existing is a different matter - we are not rewiring thousands of buildings overnight each time the regs change.

    Hence risk assessments and partial solutions like RCD protected sockets in the floor plate. (RCD sockets not really accepted by current BS7671, only ones back at the consumer unit)

    Cables in earthed armour and so forth do not need RCD protection, except if supply is TT, then not at 30mA. and you may decide 30mA RCD protection is not needed for sockets in a business setting where what is plugged in is controlled, and the risk has in effect been managed another way.

    You may then defer adding RCDs until you rewire in 20 years time or whatever.


    M.
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