This is exactly what the title of the question from the reader Yuri sounded like.
I continue to publish questions that readers asked me. For new dear readers who have come to my channel for the first time, I inform you that this is already 23 such publications. You can find some other questions and answers to them by clicking on the links at the bottom of this article.
The question itself from reader Yuri sounded as follows:
Hello! The "zero" wire coming from my electricity meter turned out to be connected to the "zero" wire coming from the neighbor's electricity meter. Could it be that under some circumstances the neighbor's meter will count the load consumed in my apartment? Thank you in advance.
I gave the following answer to Yuri:
It all depends on where the neutral conductors from two electricity meters are connected to one point. Therefore, it is advisable to see the diagram of the connection you described, otherwise this is fortune telling on the coffee grounds.
Assumingthat the junction point of two neutral conductors is located on a segment from the apartment to the meter electricity, then theoretically, some models of old electricity meters will actually count the load otherwise. In this case, it is possible that a part of the load current will flow through both yours and the neighboring electricity meter.
At the same time, it is also possible reverse situationwhen a neighbor's power is consumed, a part of his load can flow through your electricity meter. This connection method is incorrect, so you can safely submit a request to the management company to remove the connection point.
In modern electricity meters, the neutral conductor has little effect on the calculation for the consumed electricity. Therefore, the readings of new electricity meters may not depend on the connection point you have identified.
If the neutral conductors are combined on the site behind the electricity metering devices to the general house panel (usually ASU), then this is the normal connection method, which in no way affects the accounting result electricity.
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P.S. Link to some past parts - Part 22, Part 21, Part 20, Part 19, Part 18.