Build days

Knocks out a three-phase 40 A circuit breaker in front of the voltage stabilizers

Oct 28, 2021

Sergey asks: Good afternoon. I have the following situation. A private house. There is a heat pump 3ph for 5 kW consumed, plus an electric boiler 3...

What machines are needed for electrical wiring in the garage?

Oct 28, 2021

The question is answered: Alexander MyasoedovHello! Main switchboard for garage outgoing line AB 25 A. In the garage, an introductory AB 25 A or a ...

RCD on the line with the computer: is it possible or not, will there be leaks

Oct 28, 2021

Kirill asks: Hello. I read in the repair book, in the chapter of the electrician, that you should not put RCDs and difavtomats on the sockets to wh...

Marking of electric motors: AIR, JSC, Siemens and their decoding

Oct 28, 2021

Electricians who were involved in the operation of electric motors produced in the USSR had no difficulty in deciphering the designations that were...

How to choose an automatic machine and an RCD for a garage when replacing wiring

Oct 28, 2021

Valery Karachakov asks: Hello. I completely change the leash in the garage myself, including the meter and the lead-in cable (two-phase) Soviet-bui...

Analogies of concepts: current, voltage, potential, resistance

Oct 28, 2021

The question is answered: Alexey BartoshHello! Not at all true! Why invent something that is described in a physics textbook? Voltage and EMF are d...

Extension cord for refrigerator washing machine

Oct 28, 2021

The question is answered: Alexey BartoshHello! And where did you see such "13 amperes". All extension cords that are now sold are designed for 16A,...

Combining several electricity meters in a network

Oct 28, 2021

The question is answered: Alexander MyasoedovAnd what is the difference between "separately" and "one by one"? Firstly, without breaking the seals ...

Household fan fire hazard: will it light up if it gets stuck?

Oct 28, 2021

The question is answered: Alexander MyasoedovHello! Yes, overheating of the windings is possible, as a result of which a short circuit with all the...

The service life of an electric motor: what affects and how to prolong

Oct 28, 2021

Electric motors, both AC and DC, are designed for a service life of 15-20 years (usually). Subject to the rules of operation and timely maintenance...