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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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    For those of an electronics persuasion, and an interest in what is in the box, the 'Siarc' algorithms mentioned in the Wylex data are a Siemens patent - I presume this one  that patent expires 2031 and links to a few earlier ones,  so I guess they want to recover their R and D money before the other breaker manufacturers jump on the same wagon. Which would be fine if it wasn't being foisted upon us by force.
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    For those of an electronics persuasion, and an interest in what is in the box, the 'Siarc' algorithms mentioned in the Wylex data are a Siemens patent - I presume this one  that patent expires 2031 and links to a few earlier ones,  so I guess they want to recover their R and D money before the other breaker manufacturers jump on the same wagon. Which would be fine if it wasn't being foisted upon us by force.
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