What happens in the TN-C-S system when a zero break? Do I need to switch from TT to TN-C-S in a private house? Which grounding system to choose?
After the car radio was closed, the fuse replaced, but the voltage did not appear. The on-board computer does not work and the ignition switch is off - where to look for the problem?
The music player started to beat. The problem is not observed in all rooms, but only in the kitchen. Nearby there is a 6 kV high-voltage transmission line. What could be the problem?
Is it possible to start the DNaT lamp with a choke from the DRL? If so, how to connect and what else will you need?
After getting water, the silent 100 hood does not work, what should I do? What could be the malfunction? How to check the hood?
I bought the counter myself, but the management company refuses to fill it. They refer that they did not buy from them and require the replacement of the input cable. What to do?
When it rains, get wet xiaomi power bank. After that, I charged them a phone. The bank does not work and the charge is not issued. Could this damage the phone?
When they turn off the light in the entrance, the light disappears in my apartment. There is light only when the switch is on in the stairwell. What to do and where to look for a problem?
Each switchboard has a specific designation: main switchboard, switchgear, switchgear, switchgear, switchgear and others. In the article we will tell how they are deciphered and what are the electrical panels.
A 50 volt outlet, the indicator does not respond to phase. The rest of the sockets work fine, I did not find the power distribution box. What to do and where to look for a malfunction?
A mechanical timer is installed on the DIN rail. But it doesn’t work correctly - time is spinning upwards. What could be the problem?
There is a LED strip with a power of 9 W / m, I want to connect 2 meters to a 48-watt power supply. Will the LED strip burn?
Tell me which GOST in force in 2019 standardizes the conventions on electrical wiring diagrams - lines, switches, sockets, distribution boxes.
It is necessary to connect several fixtures in the room with a cable of 1.5 mm². How many junction boxes are needed, how to lay the cable correctly?
When buying an apartment, they found 2 difavtomats in the entrance electrical switchboard, but we do not understand what they are responsible for. Introductory machine at 63A and difavtomat at 50A.
Met the classification of RCDs by categories: RCD-E, RCD-DE, RCD-DM, Type A, AC, D, S and G. Tell me what is the difference and by what criteria is this classification?
When you turn on the heated floor or electric boiler, the light in the house flashes. Will the problem be solved if I connect them through a stabilizer? What else can I use?
We laid two lines of electrical wiring, we collect an electrical panel. Is it possible to put the difavtomat 20A on the sockets or combine two lines and put 1 difavtomat on 40A?
After the summer, the warm floor does not work, the sensor was replaced with a known-good one, but when you turn on the floor does not heat up. What can be the reason?
One speaker does not make a sound (it includes power), the second works fine. But if you slightly move the wire a sound appears, all capacitors are intact like the speaker.
How to turn off wiring in the kitchen? Electricians propose to get a cable of 4 mm² and from it lay to 2.5 mm² sockets. Can I do this? If so - which machine to put?
Tell me, why can not I use an aluminum wire for grounding? Aluminum is cheaper with a larger cross section, so why overpay for copper?
The house has a reduced voltage of up to 150 volts, heaters do not work well. Will power consumption increase if a voltage stabilizer is installed?
When the dishwasher is operating, the pump station machine is knocked out. The dishwasher and pumping station are powered from different machines.