apologies if you are already aware of this but with respect to the x5 or greater test current introduced in the 18th, Hager have advised that their RCBO units are manufactured to the 2017 amended version of BSEN61008/9 which permitted disconnection within 40ms at 250mA. Thus they advise testing at x 5 on both sides with the instrument set for 50mA on the variable range.
Yes the standard has changed a bit but BS 7672 had not changed the test requirement. The requirement in the 17th in Chapter 41 did change and the 5 times requirement now appears as a Note in Part 6 and as we all know Notes in BS 7671 are not Regulations. The "or higher" in my mind is just a test for the mechanical operation of the device. It is not a test to verify if the device will operate to save life where say 50mA ( or higher) coursing through a person for an indefinite period.
These weasel words in Part 6 apply to Aditional Protection and there are ambiguous words for a RCD provided for Fault Protection.
The advice us Stroma tutors give on the 18TH Edition courses is you don't need a shiny new 18the Edition meter your old meter is just fine provided it complies with BS EN 61557. Carry on doing the 5 tests as you did before and refer to Table 3A in Appendix 3 of BS 7671 for the standard. If the X1 test fails then the RCD is defective and should be replaced. I would say the "softer" RCD test is the more important test than the X5 test.
Yes the standard has changed a bit but BS 7672 had not changed the test requirement. The requirement in the 17th in Chapter 41 did change and the 5 times requirement now appears as a Note in Part 6 and as we all know Notes in BS 7671 are not Regulations. The "or higher" in my mind is just a test for the mechanical operation of the device. It is not a test to verify if the device will operate to save life where say 50mA ( or higher) coursing through a person for an indefinite period.
These weasel words in Part 6 apply to Aditional Protection and there are ambiguous words for a RCD provided for Fault Protection.
The advice us Stroma tutors give on the 18TH Edition courses is you don't need a shiny new 18the Edition meter your old meter is just fine provided it complies with BS EN 61557. Carry on doing the 5 tests as you did before and refer to Table 3A in Appendix 3 of BS 7671 for the standard. If the X1 test fails then the RCD is defective and should be replaced. I would say the "softer" RCD test is the more important test than the X5 test.
