Embed Notice

@jmorris

The difference is:

We do not only have RCDs on lines "near water" or outside, but on every(!) line. Directly in the house's distribution box, not only for "chosen" outlets.

We also have multiple arc-breakers, line-breakers, over-voltage protectors in the distribution box... for redundancy.

Shorting all three phases (or just two of them), it's likely, that you just would see a little spark for about 20ms max (if at all) before at least one of four redundant breakers chimes in.