The apartment has an electrical panel with machine guns. What is it for?
I connected a new chandelier, in one cartridge it is constantly missing, there are no traces of short circuit either on the base or on the petals of the cartridge. What is the cause of the malfunction and what can be done?
What brand, cross-section, length and number of cores can I choose a cable for connecting a two-burner stove "Dream" with a total power of 2000 watts? What is better than VVG or PVA?
Counter replacement. The energy supply company offers a choice of ENERGOMER and CASCADE meters, which is better to choose a single-phase single-rate meter, and why?
Can I connect a 6.6 kW hob without grounding? If so, is it worth it to install an RCD. There is no way to make grounding in the house.
Please help me figure out how to connect an induction motor (380V 0.37 kW. 2780 rpm) to a 220 volt network. Need a circuit and capacitor capacitance.
There was not enough cable to connect the light in the country, I had to lengthen. Put together in a box, but it is on the street near the house. Is it safe?
I want to connect the Vepr gas generator single-phase 4.2 kW, after a knife switch with a 2x2.5 wire. I can not understand from which wires to take voltage? Where is the phase and zero?
The problem with the water heater. It turns on itself even when the regulator is turned to "zero". What to do in this case, is it a normal operation or a malfunction?
What is a Hall sensor, what is its working principle and purpose. The device and types of Hall sensors, their applications. Symbol on the diagram.
To connect power from the house to the bathhouse or garage, you need to draw a line along the street. Find out which cable can be used for outdoor installation.
Over the past year, electricity consumption has increased 5 times. I think that someone is connected.The electrician called, he began to accuse that there is no seal on the counter.
At one of the contactors of the 120 kW boiler, 1 of the contacts is not disconnected, as a result, the heating elements, wiring, and sensors are burned. Will installing a thermal relay help?
The loads are connected to the three-phase network: between the phases AB - 50 amperes, between the aircraft - 50 amperes, between the speakers - 50 amperes. What section of the conductors of the phase conductors A B C to choose?
What is the difference between collector and brushless motors. What type of motor is better to choose and why. Comparison of the pros and cons of each option.
I collect the backlight on the address LED strip with arduino. Tell me, what should be the resistance of the resistor? Address LED strip ws2812b.
Help calculate how many fixtures you need to install in the studio apartment room. 1 at 140 watts or 100 watts and a few point? And how to connect them?
My electricity meter Neva 303 1SO was released on July 3, 2017, and installed on July 2, 2019. Are there any problems if the meter fails during the warranty period?
Triacs are semiconductor switches that are used to switch mains voltage circuits. Find out how the triac works and why it is needed in a circuit.
What dependence is established by the law of the total current for the magnetic field. The wording of the law in simple terms and all the necessary formulas for calculation.
When powered by a 12-220V inverter with a modified sine wave, all connected devices: fluorescent lamps, power supplies, etc., are buzzing. What to do?
Good afternoon. When the neighbors plug into the outlet, the outlet begins to crack. Is this a problem in our outlet? And what needs to be done? Is cracking a socket dangerous?
It is required to electrify the change house 3x5 three bulbs, three sockets, I will not connect anything more powerful than the electric kettle. What cable is needed for laying underground?
The chairman of SNT threatens to reduce power to 1 kW per plot. Is it possible to use other devices to neutralize such power regulation.