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WHAT WOULD YOU DO?

John Peckham
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
  • 0
    Well according to B.S. 7671 15th Edition 1981 including Amendments up to June 1987.


    613-16. "Where protection against indirect contact is to be provided by a residual current device its effectiveness shall be verified by a test simulating an appropriate fault condition and independent of any test facility incorporated in the device (see Item 6 of Appendix 15)."


    Appendix 15. 6.1 With all loads disconnected the test is carried out with tester leads connected to the load L of the R.C.D. and the C.P.C. of the circuit. The test current is limited to one second maximum.


    Note. "Where the circuit breaker has a rated tripping current not exceeding 30mA and has been installed to reduce the risk associated with direct contact as indicated in Reg. 412-14 (ii) a residual current of 150mA should cause the circuit breaker to open within 40ms."


    The test button was also to be used to confirm correct operation.


    Z.






Reply
  • 0
    Well according to B.S. 7671 15th Edition 1981 including Amendments up to June 1987.


    613-16. "Where protection against indirect contact is to be provided by a residual current device its effectiveness shall be verified by a test simulating an appropriate fault condition and independent of any test facility incorporated in the device (see Item 6 of Appendix 15)."


    Appendix 15. 6.1 With all loads disconnected the test is carried out with tester leads connected to the load L of the R.C.D. and the C.P.C. of the circuit. The test current is limited to one second maximum.


    Note. "Where the circuit breaker has a rated tripping current not exceeding 30mA and has been installed to reduce the risk associated with direct contact as indicated in Reg. 412-14 (ii) a residual current of 150mA should cause the circuit breaker to open within 40ms."


    The test button was also to be used to confirm correct operation.


    Z.






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