What is a surge suppressor?
The device, purpose and principle of operation of surge arresters. The main types of arresters and the scope of each embodiment.
What is a GSM socket?
What is a GSM socket, what does it consist of and how does it work. The principle of operation, the main functions and scope of smart GSM sockets.
What is a natural ground electrode and what is it for?
What is a natural grounding conductor and what are the requirements for its use. Use of reinforced concrete foundation for natural grounding.
How does a Wi-Fi outlet work and what are its advantages?
What is a Wi-Fi outlet and how does it work? The main functionality of wifi outlets. Advantages and disadvantages of sockets powered by wi-fi.
What are the quality indicators of electricity
The main indicators of the quality of electricity and their regulation in accordance with GOST. What are the methods for monitoring and measuring indicators of the quality of electric energy.
The main causes of the operation of the difavtomat
Why the difavtomat works in the shield and what to do in this case. The main reasons for the operation of a differential automaton. Troubleshooting algorithm.
How does the voltage in the network affect the operation of the meter?
How does the network voltage affect the operation of the meter?
How much does a switchboard assembly cost?
Switchboard. Build and connect price?
The nuances of installing infrared film on the floor
Infrared film cannot be laid under furniture. Furniture is placed along the walls. Will there be dampness and mold if you do not heat the floor along the walls?
Calculation of the cable cross section for a load of 125 kW
Please tell me, you need to calculate the cross-section of a copper cable, the maximum load is 125 kW, length is 70 meters, 3 phases are 380 volts. Thanks in advance.
Minsk refrigerator, problems with the freezer
The Minsk refrigerator does not work without shutting down. There is an ice layer on the back of the refrigerator. The freezer only freezes when adjusted to almost maximum.
How to revive the Soviet touch dimmer?
I tried to connect the old dimmer to the LED lamp and incandescent lamp. The lamps flash continuously. How to repair a Soviet dimmer?
Why is the turned off chandelier beating an electric shock?
Tell me why the turned off chandelier is shocking? When the light switch is off, the lampholder is shocking.
Which spotlight can be mounted under the roof?
I need street spotlights to illuminate the under-roof space. What protection should I choose for spotlights? The attic is not insulated.
Replacing water with antifreeze in the heating system
Water heating system. Water has to be drained for the winter. Is it possible to transfer the same system to electric heating and fill the batteries not with water, but with antifreeze?
What is the UZM-51M for and how to connect it?
The principle of operation, purpose and connection scheme of the UZM-51M. Find out what you need, what it consists of and how the multifunction protection device works.
Symbols for electrical outlets
How to identify the outlet in the room? The symbol of the sockets in the drawings and diagrams.
5 reasons for LED degradation
The main causes of degradation of LEDs. Find out why the LED strip or lamp shines differently, dimly, unevenly. An example of degradation of LED strip.
What organizational measures provide safety during the work in ES?
A brief description of organizational activities when working in electrical installations. What organizational measures ensure safety when working in a power plant.
Can the electricity meter calculate the costs of neighbors?
Can the costs of electricity from my neighbors get into my meter if this is my home?
Meter connection after voltage relay
Can I connect an electricity meter after a voltage relay? How to do it right? Thanks in advance!
Which meter to choose under reduced voltage?
We have low voltage in the network - from 160 to 180 volts. No one wants to fix this problem. Advise a meter that works from 170-180 volts.
What does VVGng-LS mean?
What does marking VVGng-LS on a cable mean? How is the abbreviation deciphered?
Trenchless cable technology
How is trenchless cable laying in the ground? Methods for laying cable lines without trenches. Advantages of the technology and procedure.
