1. We've split off Commercial Electrician Talk and Industrial Electrician Talk from the main Electrical Forum. Please take note when you're looking for and posting new threads. :) 

    Checkout the new Electricians Directory which you can add your business details to for free.

    We've also teamed up with an insurance firm to offer you guys some discounted insurance. These guys will customise your insurance to fit your needs perfectly. Enquire using the following pages: VAN - FLEET - PROFESSIONAL INDEMNITY - OTHER TYPES OF INSURANCE.

    Dismiss Notice
  2. Checkout the new British Forums, register for free and enter the competition to win a £25 Amazon Voucher!

    Dismiss Notice

Discuss BS7671:2018 in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.co.uk.

  1. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    There is an IET link in my OP if you didn't spot, not much detail though. Googling arc fault detection device, brings up quite a few hits, its seems already being used in parts of Europe (e.g. Germany). They seem to be either 3 module devices (mcb/rcd/afdd) or 1 module to add to mcb or rcbo. Siemens & Eaton already manufacture them;

    Eaton Launches Arc Fault Detection Device to Reduce Electrical Safety Risk - http://www.eaton.eu/Europe/OurCompany/News/PRProducts/PCT_2124513

    Brandschutzschalter AFDD für umfassenden Brandschutz im Haus. - http://www.eaton.eu/Europe/Electrical/ProductsServices/CircuitProtection/ArcFaultDetectionDevice-AFDD/index.htm#tabs-4

    Seems the grown ups on the IET forum are not very impressed with them;

    IET Forums - 18th Edition email - did you get it? - http://www.theiet.org/forums/forum/messageview.cfm?catid=205&threadid=66046&STARTPAGE=2&FTVAR_FORUMVIEWTMP=Linear

    Think we gonna need a bigger CU! :rolleyes:
     
    Andy78 likes this.
  2. Advertisement


    to hide this advert.
  3. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Last edited: Jan 11, 2017
  4. Andy78

    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    Thanks very much Midwest, some to go at for homework :)
     
  5. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    If you understand it, can you let me know :)
     
    westward10 likes this.
  6. Advertisement


    to hide this advert.
  7. Andy78

    Andy78 Trusted Advisor

    Location:
    Kingston upon Hull
    Well what I seem to have gleaned so far is they work similarly to an RCD, do much the same job, but can't be easily tested for correct operation. They will expand the size of a CU considerably, increase the cost even more, possibly be the cause of frequent nuisance tripping, and they are not even proven to work properly.

    I can see some stern opposition from those more knowledgeable than me when the public draft comes out.
     
    Murdoch likes this.
  8. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    See now I thought it was all those plastic CU's causing the fires!

    Seems the AFDD, fills the gap between MCB & RCD, and primarily used on socket final circuits, but not exclusively.

    I note the Siemens vid shows a corded drill arcing & sparking, causing a AF. We'll all have to go cordless. :)
     
  9. Rob

    Rob Trusted Advisor

    Location:
    North west
    The americans have been using them as part of the NEC for a while. In a word they are sh!t.

    The yanks don't do testing, but there is no way outside a lab they can be tested if they are working properly.
     
    Andy78 likes this.
  10. westward10

    westward10 Electrician's Arms

    Top Poster Of Month

    Location:
    Northamptonshire
    Just logged onto IET website and can't find a dicky bird about it, unless was looking in wrong place.
     
  11. spinlondon

    spinlondon Trusted Advisor

    Location:
    Harlow Essex
    As far as I am aware, they do not work.
     
    Murdoch likes this.
  12. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    You should read OP perhaps.
     
    westward10 likes this.
  13. westward10

    westward10 Electrician's Arms

    Top Poster Of Month

    Location:
    Northamptonshire
    It's me age:)
     
    Midwest likes this.
  14. Midwest

    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Know what ya mean.
     
    westward10 likes this.
Loading...
Similar Threads - BS7671 2018 Forum Date
MEIWC - PDF form (editable) - for up to 3 circuits - BS7671 Amendment 3:2015 model form Periodic Inspection Reporting & Certification Oct 8, 2016
MEIWC - PDF form (editable) - BS7671 Amendment 3:2015 model form Periodic Inspection Reporting & Certification Oct 8, 2016
Bs7671 History Electrical Forum Aug 22, 2016
Smokes and BS7671 Electrical Wiring, Theories and Regulations Jun 15, 2016
Onsite Guide and BS7671 Wanted For Sale and Wanted Forum May 24, 2016