I continue to publish for the heading - "question-answer". And the next, already 44 in a row, question came from the reader Mikhail with just such a heading.
The text of the question itself sounded like this:
Hello! A two-room apartment, during the repair there was a short circuit somewhere in the wall, half of the apartment went out, energized with a jumper with off. on off Working.
It turns out that the whole apartment is powered on one phase? But there is a problem the old aluminum wiring is overheating. Can the kitchen and all appliances (oven, microwave, washing machine and refrigerator) be powered from the counter with new wiring?
I reviewed the issue and advised Mikhail within the framework of my knowledge and qualifications as follows:
Good day!
I didn't understand a little your question about the fact that the whole apartment is on one phase: is there a three-phase electric meter installed in your apartment? Personally, I have not (so far) encountered such a power supply scheme, at the same time the three-phase system is used in individual residential buildings.
Typically, apartments use one phase conductor and one neutral conductor and a ground conductor. Therefore, if you have some electrical equipment functioning normally, then yes, your whole apartment is powered on one phase conductor.
If there were problems with the old wiring in the apartment, then the idea of replacing it with a new one is a great option to avoid damage and possible fire. If possible, it is advisable to supply all powerful electrical appliances with a separate line from the terminal board.
This includes ovens, electric kettles, boilers, electric boilers, and other electrical equipment. For them, wiring of a larger cross-section is used than for lighting and other low-current equipment, separate automatic switches and differential current devices (RCD) are installed.
P.S. Dear Readers! If you have your own version of the answer to this question, then write it in the comments! Me and other readers will be glad to read your version.