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RCDs for both Fault & Additional Protection

PG
BS7671 states for Additional Protection [415.1.2] - "The use of RCDs is not recognised as a sole means of protection and does not obviate the need to apply one of the protective measures specified in Sections 411 to 414." - These methods being methods of protection against shock - ADS, Double Insulation, Separation & SELV/PELV.


531.3.6 states " - - - - - - -RCD - - --  - - -may provide fault protection and additional protection simultaneously."


This appears to be inconsistent. Is 531.3.6 meant to apply to only one type of neutral  earthing system?


Regards

Parents
  • 0
    I don't see how 531.3.6 applies to any one type of earthing system 531 is all about protection of electric shock by ADS, and 531.3 is about RCDs.


    I don't see a discrepancy;  if you are going to use a RCD for fault protection, you still need to following the requirements for earthing and bonding as well as basic protection.
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  • 0
    I don't see how 531.3.6 applies to any one type of earthing system 531 is all about protection of electric shock by ADS, and 531.3 is about RCDs.


    I don't see a discrepancy;  if you are going to use a RCD for fault protection, you still need to following the requirements for earthing and bonding as well as basic protection.
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