Can the appliance fail after a power surge?
There was a power surge, everything turned off and immediately turned on What could be the consequences? I’m very worried, I already felt the consequences once, what should I do?
Knocks out a difavtomat at once at inclusion
After mounting the wiring and finishing the finish finishes differential machine. Is it possible to connect this core to a neutral wire instead of grounding?
Why does the fuse on a Suzuki SV650 motorcycle burn out?
The fuse in the starter relay circuit (retractor) is blown. Maybe there is a problem in it? Or in a relay controller? I enclose the scheme.
Is energy saving possible with an inverter?
Will there be energy savings if you connect the boiler through a 220-24V power supply and a 24-220V inverter? How to connect it?
How to connect the switch from the outlet in the junction box?
In the junction box, wires from the outlet, lamp and switch. I can not navigate how to switch from a power outlet to a switch. Can you explain?
How to connect a two-key switch with backlight?
The two-key switch displays 2 terminals for backlight, how to connect it correctly so that the backlight works?
Is it possible to twist copper and aluminum when connecting a 12V LED strip?
You need to connect the 0.75 sq. Mm copper wires with the 0.5 sq. Mm aluminum connector for the LED strip. The voltage is 12V. Can this be twisted?
What is a servo drive and how does it work
What is a servo drive and where is it used. Advantages and disadvantages of the mechanism. How servos for heating and radio-controlled models work and are arranged.
Is it possible to connect a three-phase electric motor without a starter?
Is it possible to connect a three-phase ventilation motor without a start button and magnetic starters directly to a three-pole circuit breaker?
Why does the Harvia C105S sauna control unit not turn on?
After a power surge, the Harvia C105 sauna control unit does not turn on. After replacing the fuses, nothing has changed, what should I do?
Reasons and methods for eliminating vibration of electric motors
What is motor vibration and why does it occur. In which GOSTs and other documents the norm is indicated. What are the ways to measure and eliminate vibrations.
GOST 12.1.030-81: SSBT. Electrical safety. Protective grounding and grounding.
The status of GOST 12.1.030-81 for 2019. Occupational safety standards system. Electrical safety. Protective grounding, grounding.Download GOST 12.1.030-81 in PDF.
Check the circuit diagram of a country house
Check the circuit of the electrical panel, namely, the correct choice of circuit breakers and its layout. Is it possible to lay several cables in one corrugation?
Are the 5-7.5 A and 5-10 A counters interchangeable?
Is it possible to replace an electric meter with parameters 5-7.5A with a more powerful one - 5-10A? What do these parameters mean and what do they affect?
What wire is used in automotive wiring?
Which wire to use to replace wiring in a car trailer? What are intended for laying in cars? Is it possible to use PVA and ball screws?
Are radiation from the ASU under the apartment dangerous?
The apartment is on the ground floor, in the basement is the ASU of the house. Is such a neighborhood dangerous in terms of electromagnetic radiation?
How to connect the chandelier to the two-key Aqara switch?
There are two chandeliers in different rooms and a two-key Aqara switch. Tell me the correct connection diagram for it.
Check the circuit board and the selection of accessories?
He made a diagram of the electrical panel. Help me choose the values of the machines? Is the wiring diagram correct? How to connect an RCD? Is it possible to connect zeros after an RCD?
Can I put a 25A machine on sockets and electric boilers?
Tell me, is it possible to connect sockets to an electrical panel with a 25A automatic machine? Now connected electric boilers that consume 20A.
Calculation of resistor resistance for LEDs (20 pcs.)
I make a toy for my son with my own hands, I bought LEDs and I want to connect them to a 12V voltage. How to choose a resistor? Is 470 ohms enough?
Which machine to put on a group of machines for 16A?
In the switchboard there are 3 automatic machines of 16A each. Machine with what rated current can be set common to them? Or is it better to put a load switch?
Dimmable switch for fan and lamp - wiring diagram
There is a switch with Wi-Fi, designed to connect a chandelier with a fan. But I can’t get it working when I connect only a chandelier.
GOST 12.1.051-90: Safety distances in the security zone of power lines with voltage above 1000 V
The status of GOST 12.1.051-90 for 2019. SSBT. Electrical safety. Safety distances in the security zone of power lines with voltages above 1000 V.
Is it possible to connect a refrigerator and a washing machine to an extension cord at the same time?
There are two outlets. A boiler is connected to one, and suddenly we want to connect a refrigerator and a washing machine. Can this be done if I buy a 16A extension cable?
