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WHAT WOULD YOU DO?

Today's job inspect and test a domestic installation in a sheltered housing flat. TN-C-S earthing system. Main protective bonding correct. 


Wet room for disabled occupant. Electric shower and extract fan supplied from a Wylex 2 way consumer unit  with BS EN 61008 30mA RCD main switch. Recently installed.


RCD does not trip on X1 RCD test but does trip on X 5 and operation of test button. RCD does not tip on a second and third test after X 5 test and operation of the test button.


Thinking about the Note to Regulation 643.8 are you content with this installation as there are no other observations recorded and prepared to issue a "Satisfactory" EICR?


Parents
  • Is the wording of that note in the regs book supposed to inform us that when testing RCDs rated at 30 mA or less if we do a X1 RCD and it trips in 40 milliseconds or less then we don’t need to do the X5 test?


    Some years ago I asked if we needed to do the X5 test on a 30 mA RCD if it tripped in 40 mS or less at X1 and the conclusion was that yes we do.


    Andy
Reply
  • Is the wording of that note in the regs book supposed to inform us that when testing RCDs rated at 30 mA or less if we do a X1 RCD and it trips in 40 milliseconds or less then we don’t need to do the X5 test?


    Some years ago I asked if we needed to do the X5 test on a 30 mA RCD if it tripped in 40 mS or less at X1 and the conclusion was that yes we do.


    Andy
Children
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