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100mA RCDs TT system

Afternoon all,

What is the stance on using 100mA RCDs for TT systems now?

I was under the impression that they are no longer required as long as all circuits were protected by a 30mA RCD within the consumer unit (which in this case they will be).

Just looking for some clarity. 


Thanks! 

Parents
  • And in many designs, the tails from the meter coming detachd is not the only possible area of concern - a final circuit CPC tail (which in a worst case may be badly sleeved bare copper from T and E ) could end up poked against the back of the busbar, so connecting to live after the incoming switch and before the outbound RCBOs.
Reply
  • And in many designs, the tails from the meter coming detachd is not the only possible area of concern - a final circuit CPC tail (which in a worst case may be badly sleeved bare copper from T and E ) could end up poked against the back of the busbar, so connecting to live after the incoming switch and before the outbound RCBOs.
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