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  1. Ian1981

    Confirming earth bonding continuity when cannot isolate supply

    You can’t simply say that the main bonding cannot be verified for initial verification for new work or additions as per regulation 132.16.
  2. Ian1981

    EICR RCD 63A exceeded by breaker total code

    I don’t think it is a departure from bs7671 as how are you achieving the same level as safety, it would be a blatant non compliance.
  3. Ian1981

    EICR RCD 63A exceeded by breaker total code

    That’s the point, a 63 amp rcd won’t trip if it gets 100amps pulled through it, you could wack 1000 amps through it and it will just melt rather than trip. I suspect the reason this regulation changed is all the burnt out 63 amp rcd’s having 8plus circuits hanging off them. It has No overload...
  4. Ian1981

    EICR RCD 63A exceeded by breaker total code

    An upfront ocpd of the rcd should be equal to or less than the current rating of the rcd, if the combined mcb’s downstream of the rcd have the potential to exceed the ccc of the rcd, then it should be coded on an EICR . Diversity of the final circuits alone is no longer acceptable for providing...
  5. Ian1981

    Bathroom RCD protection

    Makes you wonder what the point of an rcd spur/socket is when you require an rcd upfront of it anyway?
  6. Ian1981

    Global IR testing on RCBO populated CU

    A global IR test is done with the main switch in the open position and all the final circuits in parallel, mcb’s closed, not possible to do with all ocpd’s being rcbos. Hager rcbos allow for IR test at their terminals as it’s stated on the device, with obviously the ocpd in the open position
  7. Ian1981

    Bathroom RCD protection

    Extract from a BS 7288 tech sheet
  8. Ian1981

    Is this the real bible eicr code breaker

    There’s pictures all over social media, MFT, tools and a codebreaker book on the kitchen worktop, with the caption ‘EICR ready
  9. Ian1981

    Part 9 of the EIC

    132.16 Before installation of a new DB then this regulation should have been verified anyway. If you can verify the bonding then don’t carry out the work.
  10. Ian1981

    Spice alert level 5

    Work as normal for our company.
  11. Ian1981

    Bonding of Water pipes (plastic incomes)

    A lot of people mistaking believe that you bond a water, gas or heating pipe incase the pipe becomes live. Obviously that is not why we carry out bonding, however it is obvious that electricians who believe this really need to go back to the basics and the understanding of what an extraneous...
  12. Ian1981

    No earth on lighting circuit

    I think that the best practice guide is a good form of guidance and is worth a read for anyone involved with inspection and testing but I think westward maybe referring to the fact that inspectors rely too much on it and should refer more to bs7671?
  13. Ian1981

    Short circuit protection on high resistance on live conductors

    Your example is for a TT earth fault where only a low current would flow resulting in an ocpd not operating. If you measure the L-N loop like the PSCC on a TT , then you will find that to be typically in the low impedance values similar with doing ZE testing in a TN arrangement.
  14. Ian1981

    No earth on lighting circuit

    Yes this particular non compliance is definitely potentially dangerous.
  15. Ian1981

    No earth on lighting circuit

    This subject has been done to death and it winds me right up that supposedly competent and skilled persons are supposed to carry out this type of work, yet they don’t understand the basic requirement to inspect and use the current edition of the wiring regulations as a tool to recommend...
  16. Ian1981

    No earth on lighting circuit

    That is incorrect, tell me, as anything we code can be backed up by a regulation, what regulation number would you refer to if for example , sockets upto 32 amps non rcd protected supplying mobile equipment outdoors? The answer is that you cannot as the 16th edition did not require rcd...
  17. Ian1981

    No earth on lighting circuit

    You are definitely NOT there to test to the edition it was installed to. You inspect and test to the current edition of the wiring regulations. I cannot understand the difficulty in electricians undertaking EICR’s understanding this basic requirement.
  18. Ian1981

    Blue Flame Certification - Review

    I think whatever scheme you want to join, they now insist on a level 3 NVQ , the current edition of bs7671and possibly inspection and testing as a minimum as to avoid the 5 week electricians carrying out and certifying their own work. I maybe wrong but I believe the likes of the Niceic have...
  19. Ian1981

    Ip44 230v zone 1?!

    I install IP65 in bath/shower rooms, most reputable manufacturers have either IP20 or IP65 downlights on offer
  20. Ian1981

    Ip44 230v zone 1?!

    The height of zone 1 and zone 2 are limited either by the horizontal plane corresponding to the highest fixed shower head or water outlet, or the horizontal plane lying 2.25 m above the finished floor level, whichever is higher. So it is the finished floor level you go off.

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