Build days

How to choose an oscilloscope for home and work

Oct 28, 2021

What is an oscilloscope and what is it? This is an improved multimeter, on the screen of which you can observe the indicators of the currents that ...

Voltage dips in the network: causes and protection measures

Oct 28, 2021

Voltage dips in the network are a serious problem for many devices, because they can reduce the quality of the devices, as well as cause a malfunct...

Knocking out traffic jams in the apartment: what to do and where to go?

Oct 28, 2021

Almost every person has encountered the problem of knocking out plugs, especially when it comes to living conditions. Although rarely seen lately, ...

How to replace the machine in the dashboard and who should pay for the replacement?

Oct 28, 2021

Each protective device has a certain period of operation, the circuit breaker is also no exception. If this device breaks down, it must be replaced...

Connection of phase control relays in ShchR and ShchAO

Oct 28, 2021

Alexandra asks: Hello. A store in a shopping center is being designed. The shopping center has its own separate branch for JSC and EO (emergency an...

Connecting a 10 kW electric stove through a socket

Oct 28, 2021

Sofia asks: Good afternoon. Please tell me, there is a 5 kW electrical outlet in the house. Is it possible to connect an electric stove with a high...

Kirchhoff's laws for electrical and magnetic circuits

Oct 28, 2021

There are a number of rules for calculating electrical engineering problems in physics, the first and second Kirchhoff's laws are often used, as we...

Protected zones of power lines: regulatory documents, sizes, requirements

Oct 28, 2021

The electromagnetic field that the power line emits is known to have a bad effect on the human body and its health. Surveys were carried out of tho...

Which grounding is better for a private house: TN-C, TN-C-S or TT

Oct 28, 2021

Roman asks: Hello. I decided to partially change the wiring in a private house, since the old one is already worn out and dangerous. We needed the ...

Joule-Lenz law: formula, application in practice, conclusion

Oct 28, 2021

In 1841 and 1842, independently of each other, English and Russian physicists established the dependence of the amount of heat on the flow of curre...