If a slight tinge tripped everything it would be a nightmare. I get slight
tingles off of most supposedly double insulated devices when I plug in a
cable to an earthed bit of kit.
Brian

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"Andy Burns" wrote in message
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Scott wrote:

My question is why the RCBO did not trip.

They need to see 30mA to trip, given Clive's reaction to 13mA

https://youtu.be/-5R-KBa18ME?t=1493

your "slight tingle" was presumably lower than that?