Help in assembling the shield in the apartment

Help in assembling the shield in the apartment

I am collecting the shield in the apartment. On the landing there is a 50 A circuit breaker, then in the apartment there is a meter and a 63 A. bipolar circuit breaker.

Why does the voltage drop in the apartment?

Why does the voltage drop in the apartment?

In one apartment, for unknown reasons, the voltage dropped, the light was dim. After 2 hours, the voltage recovered. What is the reason?

Why is the LED spotlight on and off?

Why is the LED spotlight on and off?

When connecting an LED spotlight with a motion sensor, the spotlight does not turn off! I unplug it and plug it into the socket through the plug - everything works.

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