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submitted 1 month ago by silence7@slrpnk.net to c/world@lemmy.world
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[-] catloaf@lemm.ee 12 points 1 month ago

You just plug them into an outlet? Is there no safety concern about backfeeding power, especially if someone turns off the breaker and expects a circuit to be de-energized?

[-] zaphod@sopuli.xyz 32 points 1 month ago

They're not supposed to be grid-forming and should turn off if there's no grid voltage. And if you turn off a breaker you should always check that there's no voltage, you might've turned off the wrong breaker.

[-] catloaf@lemm.ee 4 points 1 month ago

That's good then. Although I hope they also considered what happens if there's two of them on a circuit, because if the mains power goes off, but there's another panel on the same circuit, they'd each see the other's voltage on the line, right?

And yeah, you should verify that a circuit is de-energized after you flip the breaker, but I've seen both some real weird electrical work, and some electricians who aren't that careful.

[-] SkavarSharraddas@gehirneimer.de 4 points 1 month ago

Although I hope they also considered what happens if there's two of them on a circuit

The regulations allow only for one. If you want a bigger install than that you need individual approval I think.

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this post was submitted on 29 Jul 2024
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