Saturday Night Discrimination Quiz/Guess
- Thread starter JohnW2
- Start date
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how many goes are we allowed
Without commenting on its correctness (in terms of what happened) I suspect that is what many/most of us would have guessed as the most likely (if we were told that more than one device operated) - certainly me.
If you like thickening plots, I would add that there is also a slight 'intellectual twist' to the question as well!
Kind Regards, John
how many goes are we allowed
Extra go after each 'clue' from John!
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As many as it takes - but don't expect me to necessarily indicate immediately if/when someone gives a correct answer!how many goes are we allowed
Kind Regards, John
I see what you did there
I'll stick to my guns and say, 32A and RCD at CU.
Does '... class 2 ... ...no contact with earth...' have some perverse significance, I wonder...
I know of some RCD protected socket outlets trip when power is cut, so now leaning toward 32A and RCD at outlet.
Any theories as to why you think the RCD may have operated? As I indicated, there was no 'earth contact' - in fact, the cable was cut 'in mid air', and the 'live' cut end fell onto a (dry) paved patio.
Kind Regards, John
oh
That's a good point.
If so and it is an active RCD socket that means the power to it was cut
so I'll now say this RCD socket and the 16A RCBO.
OK, I'll give in slightly and award some sort of prize to EFLI (and PBoD), since this was the additional 'slight intellectual twist' to which I referred. The (active) RCD socket did operate, but I presume as a secondary consequence of operation of an upstream device (there's one clue for you all!).
HOWEVER, that was 'additional'. More than one of the other devices also operated!
Kind Regards, John
no theories, just irrational thoughts and aimless stabs in the dark at that moment.
so upstream of Active RCD only leaves 16A RCBO, 32A MCB, RCD@CU or maybe isolator at mini CU?
and looking at the combinations already offered process of elimination, leaves Active RCD and RCD at CU.
Have we got three devices now tripping?
and looking at the combinations already offered process of elimination, leaves Active RCD and RCD at CU.
Have we got three devices now tripping?
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