They are trying to bring it in, but when common sense prevails, they'll either reject, or make sure the they are not cost prohibitive
Oh, that's all right then, because common sense always does prevail whenever they get into law-of-diminishing-returns territory, and they always carry out comprehensive cost-benefit analyses....

?

[Makes mental note to finish watching David Savery's rant..]
 
Oh, that's all right then, because common sense always does prevail whenever they get into law-of-diminishing-returns territory, and they always carry out comprehensive cost-benefit analyses....

?

[Makes mental note to finish watching David Savery's rant..]

There is no cost benefit. They are just an empty fire extinguisher. EFLI and plug fuses provide 100% parallel and earth arc fault coverage. That leaves serial events, where arcing is the end stage of joule heating assuming combustion has not already started. 90% of all electrical fires start without any arcing.
 
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Arc Fault Detection going global ...
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