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IET announces new amendment to BS 7671 (IET Wiring Regulations)

Lisa Miles
Hi all


Just read about this in the latest edition of Wiring Matters Magazine and thought it may be of interest!
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    John Peckham:

    BS 7288: 2016 says.


    " SRCDS are only intended to supplementary protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection and additional protection are already assured upstream upstream of the SRCD".


    So these devices can no longer be used for additional protection. I assume this is why the do not appear in Appendix 1 of BS 7671 or in the body of the standard.


    I do not know if SRCDs made to the previous standard, BS 7288: 2009, are suitable for additional protection as they were of a different construction or it was discovered that all types are unsuitable? 


    So if you discovered an SRCD installed on an installation for additional protection or fault protection on a Periodic Inspection they would be a C2?


    I think this is the issue Graham Kenyon was referring to on the earlier thread.




    I am rather concerned that The author this industry guidance, John Peckham of Stroma cannot determine the use of the new RCD devices that are being made to meet the requirements of the new British Standard that doesn’t actually come into effect until later this year in November 2019.


    The 1990 edition of the SRCD and FCURCD is still actually the current edition and the new 2016 edition is still several weeks off being the current standard.


    I just said to someone in an email that once again I will be without a pet subject to bang on about on this forum, but it doesn’t look like we are there yet.


    My latest line of thought on this subject is that a decision was made to rewrite the British Standard for SRCD and FCURCD devices to say that they should be Type A RCDs, because of the types of appliances they are now being used to offer RCD protection to.


    Originally myself and others thought the apparent omission of these devices from BS7671 was just a clerical error copying the international standard into the UK regs and forgetting to include these UK only devices which are not in the international standard.


    Now it seems that when the British Standard for SRCD and FCURCD devices was rewritten changes were made that may not actually make the new versions just coming into production and being released for sale fit for their generally accepted uses, so an omission from BS7671 may be deliberate.


    i only have these devices that are made to the 1990 standard, type AC RCDs and although the new versions with type A RCDs are available I cannot see any point in putting any into stock on my van until there is some clarification as to what they can be used for.


    Andy Betteridge





     

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  • 0

    John Peckham:

    BS 7288: 2016 says.


    " SRCDS are only intended to supplementary protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection and additional protection are already assured upstream upstream of the SRCD".


    So these devices can no longer be used for additional protection. I assume this is why the do not appear in Appendix 1 of BS 7671 or in the body of the standard.


    I do not know if SRCDs made to the previous standard, BS 7288: 2009, are suitable for additional protection as they were of a different construction or it was discovered that all types are unsuitable? 


    So if you discovered an SRCD installed on an installation for additional protection or fault protection on a Periodic Inspection they would be a C2?


    I think this is the issue Graham Kenyon was referring to on the earlier thread.




    I am rather concerned that The author this industry guidance, John Peckham of Stroma cannot determine the use of the new RCD devices that are being made to meet the requirements of the new British Standard that doesn’t actually come into effect until later this year in November 2019.


    The 1990 edition of the SRCD and FCURCD is still actually the current edition and the new 2016 edition is still several weeks off being the current standard.


    I just said to someone in an email that once again I will be without a pet subject to bang on about on this forum, but it doesn’t look like we are there yet.


    My latest line of thought on this subject is that a decision was made to rewrite the British Standard for SRCD and FCURCD devices to say that they should be Type A RCDs, because of the types of appliances they are now being used to offer RCD protection to.


    Originally myself and others thought the apparent omission of these devices from BS7671 was just a clerical error copying the international standard into the UK regs and forgetting to include these UK only devices which are not in the international standard.


    Now it seems that when the British Standard for SRCD and FCURCD devices was rewritten changes were made that may not actually make the new versions just coming into production and being released for sale fit for their generally accepted uses, so an omission from BS7671 may be deliberate.


    i only have these devices that are made to the 1990 standard, type AC RCDs and although the new versions with type A RCDs are available I cannot see any point in putting any into stock on my van until there is some clarification as to what they can be used for.


    Andy Betteridge





     

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