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The Arc Fault Detection Device… again.

whjohnson
Some humourous but valid observations on AFDDs, the state of the industry, the wiring regs and future amendment requirements.

He also attempts to build a AFFD tester which electrically tests rather than relying upon the mechanical action of the test button on the device itself.

https://www.youtube.com/watch?v=e0ElFaKc_e8

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    Colin Jenkins:

    Hello Chris.

    With my apologies, it looks like the no-trip threshold is 1.5 amps.  It's on page 6 of Wylex's AFDD/RCBO leaflet attached here.

    Regards,

                  Colin.         20200113123032_0_Wylex Single Module AFDD Cat Nov 19.pdf


    Colin, no need to apologise at all. At, say 2 A that Wylex device could spend many seconds, minutes or even hours thinking about whether to trip or not and still be in spec. To be honest, I hadn't realised that there is a threshold current for these devices.


    I am so tempted to do some experimentation JW-style, but I am far too mean to buy an AFDD. ?


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  • 0
    Colin Jenkins:

    Hello Chris.

    With my apologies, it looks like the no-trip threshold is 1.5 amps.  It's on page 6 of Wylex's AFDD/RCBO leaflet attached here.

    Regards,

                  Colin.         20200113123032_0_Wylex Single Module AFDD Cat Nov 19.pdf


    Colin, no need to apologise at all. At, say 2 A that Wylex device could spend many seconds, minutes or even hours thinking about whether to trip or not and still be in spec. To be honest, I hadn't realised that there is a threshold current for these devices.


    I am so tempted to do some experimentation JW-style, but I am far too mean to buy an AFDD. ?


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