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AFDDs AMD 2

John Peckham
In response to the suggestion of separate threads for individual changes to the 18th I thought I would start this one for AFDDs.


So what are the forum members views on the new requirement for AFDDs?


What is the safety case for the change? E.g impact on public safety, fires etc.Evidence?


What is the impact on the installation industry? How easy to fit, cost advantages disadvantages etc?


Will you feedback to the BSI on the changes and what will you say?


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  • 0
    I have done a bit of digging around.


    It seems that BS EN 62606 has been prepared by CENELEC at the request of the European Commission. BS 7671 is obliged to follow suit.


    The scope of BS EN 62606 includes:

    This International Standard applies to arc fault detection devices (AFDD) for household and similar uses in a.c. circuits.


    The classification of AFDDs currently extends only to 2-pole devices. 3- and 4-pole devices are under consideration. It seems that nobody makes 3-phase AFDDs.


    The Eaton offering, for example requires a completely different busbar set up - details here.


    They also make a type B board, but it isn't clear whether 3-phase outgoing devices can be fitted - details here.


    Retro-fitting clearly isn't an option.
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  • 0
    I have done a bit of digging around.


    It seems that BS EN 62606 has been prepared by CENELEC at the request of the European Commission. BS 7671 is obliged to follow suit.


    The scope of BS EN 62606 includes:

    This International Standard applies to arc fault detection devices (AFDD) for household and similar uses in a.c. circuits.


    The classification of AFDDs currently extends only to 2-pole devices. 3- and 4-pole devices are under consideration. It seems that nobody makes 3-phase AFDDs.


    The Eaton offering, for example requires a completely different busbar set up - details here.


    They also make a type B board, but it isn't clear whether 3-phase outgoing devices can be fitted - details here.


    Retro-fitting clearly isn't an option.
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