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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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    ebee:

    Do we put them in the same bin as voltage conditioners in domestc properties?

    Snake oil!




    That's harsh! ?


    They do actually detect potentially dangerous arcs. The real question is do such arcs exist in practice? The consensus seems to be no. Take the much-vaunted burnt out shower switch. If a terminal is not properly secured, is the over-heating due to arcing or due to only a couple of strands carrying the full current?


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  • 0
    ebee:

    Do we put them in the same bin as voltage conditioners in domestc properties?

    Snake oil!




    That's harsh! ?


    They do actually detect potentially dangerous arcs. The real question is do such arcs exist in practice? The consensus seems to be no. Take the much-vaunted burnt out shower switch. If a terminal is not properly secured, is the over-heating due to arcing or due to only a couple of strands carrying the full current?


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