Build days

RCD for lighting: to install or not according to the PUE

Oct 28, 2021

Disputes often arise on thematic forums about whether it is necessary to install an RCD for lighting, and we are sent to the editorial office with ...

How to choose a difavtomat by power and leakage current

Oct 28, 2021

The safety requirements for the arrangement of electrical networks intended for a private house, apartment or for a summer residence provide for th...

DIY motion sensor at home: video, diagram, photo

Oct 28, 2021

The presence of all kinds of detectors in the room allows monitoring and control of most modern houses, remotely and automatically, according to a ...

For which they can turn off the electricity in a private house and apartment

Oct 28, 2021

There are many reasons for power outages, not only in private homes and apartments, but even in businesses. The process of power outage itself shou...

ABB circuit breakers: types, differences in series, advantages

Oct 28, 2021

The main condition for the safe and trouble-free operation of electrical equipment is not only the installation and layout of the circuit in accord...

How to remove radio components from the board - an overview of techniques

Oct 28, 2021

When a piece of hardware fails, you don't have to throw it in the trash right away. If you are fond of electronics and radio engineering, it would ...

Connecting a capacitor to an electric motor

Oct 28, 2021

Good day! Attached three diagrams to the comment. a) Star. Advantages: simple connection, relative symmetry of currents in the windings. Disadvanta...

Checking the connection diagram of the shield in a country house

Oct 28, 2021

Hello! 1) ABB introductory machine for 25 A, so it makes no sense to put a machine after the counter at a higher value, since it will be useless. I...

Difautomat is triggered when the charger is connected

Oct 28, 2021

Hello! There are three reasons for the operation of the difavtomat - overload, short circuit or current leakage in the wiring. There may be an over...

SEZ circuit breakers: product overview

Oct 28, 2021

The Slovak company Sez Krompachy has been producing low and high voltage devices for over 69 years. The range of the brand is quite wide and includ...