When you press the first key, both chandeliers light up; when you press the second key, nothing lights up. How to connect a two-gang switch to two chandeliers?
During the operation of the warm floor, the power supply unit of the lamp heats up very much, although it is not turned on. What is the reason for heating and how can this problem be solved?
In December, our electric meter wound 527 kW, in other months the consumption was no more than 150 kW. The electrician did not find anything suspicious. What is the reason?
Aquarium with native 35W fluorescent lamps. They burned out, can they be replaced with 25 W lamps? Will they light up normally and work?
Dear colleagues! I can not find (I think that have not yet been developed) UGO LED lamps on the plans. If possible, help.
Good afternoon. When I turn on the hood, the motor does not work. The backlight works. 3 weeks as installed. What could be the catch?
How is metal communication measured in electrical installations? Devices with which the test is performed, as well as permissible resistance values.
Three-room apartment, no electric floors. Consumption has always been no more than 200 kW, last month it turned out 500, in this 600 kW. Is such a monthly expense possible?
He took off the two-key switch. I want to put a new one-button. Three wires, which one to insert into the phase, and which to zero, where is the third?
We have no stable voltage. When 205, and 230 volts. The washing machine began to stop during washing. Could it be the case of voltage drops?
Can a fence be used as ground? Logs are connected by welding along the entire length of the fence, every 2-3 meters a column at a depth of 1.5-2 meters, concreted.
I’m calling a chain between the grounding wire and the washing machine’s body, there is no chain, and when I put the probes on the drum and the grounding wire, there is a chain.
New building, brick, 15th floor. Please tell me whether it is necessary to make a potential equalization system in the apartment wiring? Because 3 riser heating and 2 water.
Hello! Please tell me, can I connect a current transformer with a rating of 100/5 to a Mercury 230 AM-02 meter for 10 (100) A?
How to make wiring so that there is minimal electromagnetic radiation from it? I bought a meter for measuring, in some places the readings are off scale.
Tell me, how to connect one common bell and three light bulbs from three buttons, so that when one of the buttons is pressed, one light comes on and the common bell rings?
Grade PS 660 V6, decoding - copper flat with fiberglass insulation. Is it a cable or wire? After all, the insulation is one, and the voltage is like for a cable.
What will be the penalty for using the LS cable and frls cable in one tray without a partition and a special corrugation? Can they punish for incorrect wiring?
Why is there a zero voltage and grounding on the wires at one 230V socket, there is nothing on the phase. When you turn on the load on these two wires, the machine knocks out.
Is it possible to connect the refrigerator through an extension cord or is it better to directly connect it to an outlet?
The refrigerator sometimes rattles during operation. He was plugged in. I plugged it into an outlet through an extension cord. Will this help or better directly to the outlet?