@the-goofers

Bro, this is a great video. Can I consult with you?

@PAFFO

insightful - you said that is able to detect a leakage to ground / Earth , in a situation where a metal chassis has a AC to DC transformer , and the chassis is both used as DC Common ground ( negative ) and also used as AC to Earth leakage.
Would the DC current flow trough the chassis influence the correct operation of RCBO AC earth leakage detection  ? 
Let say DC flowing trough chassis is 48V , 2000w load pulling roughly 41 amp,  would this mess with RCBO ? 
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