Zero in an electric bell
Why, when I press a button at the entrance to the apartment, a phase is sent to the bell on both wires, but there is no zero? What will happen if I put the phase on the bell and put another wire from the bell on the ground instead of zero?
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Read the article carefully https://our.electricianexp.com/en/pravilnoe-podklyuchenie-dvernogo-zvonka-v-kvartire.html There is no need to invent anything; connect correctly.