Why do I need an electrical panel in the apartment?
The apartment has an electrical panel with machine guns. What is it for?
Why is one of the 8 rounds in the new chandelier short and what can be done?
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?
Which cable to choose for connecting a 2 kW electric stove?
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?
What single-phase meter is better to put in the apartment?
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 hob without grounding?
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.
How to connect a 220 volt induction motor?
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.
Safety cable connection in a box on the street near the house
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?
How to connect a gas generator to the network at home?
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?
Why does the water heater turn itself on and off?
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 and where is it used?
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.
Which cable to choose for laying outdoors (by air and in the ground)
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.
Electricity consumption increased 5 times - what is the reason?
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.
What to do if the contacts of the magnetic starter stick?
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?
What cable section is needed for 50 Amps 380 Volts?
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?
Comparison of the collector and brushless motors
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.
How to connect an address led strip to arduino?
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.
How to calculate the lighting in a studio apartment?
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?
What is the maximum shelf life of a counter before sale?
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?
What is a triac, how does it work and what is it for
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.
The law of total current in simple words
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.
Why do all the appliances in the garage make a hum when powered by an inverter?
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?
Why does the socket crack when you insert the plug into it?
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?
What cable to choose for connecting a change house (underground installation)?
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?
What if the SNT chairman threatens to limit power to the house?
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.
