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Tattoos (lemmy.world)

submitted 3 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 5 points 3 weeks ago (1 children)

Maybe the star configuration of a 3 phase motor in a PEN (neutral and ground over the same cable) electric system

[–] [email protected] 2 points 3 weeks ago (1 children)

Doesn't PEN mean they are connected at the breaker panel? Connecting them at the motor would make any GFCIs and stuff useless

[–] [email protected] 1 points 3 weeks ago* (last edited 3 weeks ago)

It would come as one cable doing double duty. Its an older kind of network and as far as i know no longer in use since it lacks safety features.

But since it is a tatoo, its more likely just a meaningless painting.