Is dust in the rosette dangerous?
When installing outlets in an apartment in the socket, it was not possible to remove all building dust (from sanding gypsum plaster), because no vacuum cleaner. Is it dangerous?
Help identify the machines in the shield
Hello, please tell me what kind of machines? Stand in the ventilation shield. I suspect that this is some kind of RCD, but I would like to hear an authoritative opinion.
Why does the subwoofer not work?
I have a microlab speaker - two speakers and a subwoofer. At first everything worked, but after a while the sound disappeared. Is it the cord or the connector itself?
Can the refrigerator consume more power because the door is not closing properly?
Can a loose door affect the energy consumption of the refrigerator, it doubles? Can a split eat a large number of kW?
Why do we need zero in a three-phase counter?
The balancing transformer has its own zero, the input network zero is not connected. Will the meter work if only three phases are connected to the transformer?
How to connect a shed to a 380 V network?
How to connect the shed from the 380 V network, which machines to use? In the barn, lighting, 220 V sockets and 380 V sockets should beat
Is it possible to put a voltage regulator on the compressor?
There is a compressor for the aquarium, but it does not have a power regulator. Is it possible to put a voltage regulator 220 V or a dimmer in front of the compressor?
What is a surge protector and what is it for?
The device, principle of operation and purpose of the surge protector. Where is the surge protector used and why is it necessary to use this device.
A simple explanation of the gimlet rule
What is the rule of the gimlet, as well as the rules of the right and left hand. A short and clear explanation in simple words. Putting the rules into practice.
Is it possible to adjust the fan speed with a dimmer?
When connecting a dimmer for light to a channel fan, you can adjust the speed?
Why is the voltage on the electric heating elements 100 V?
There is a problem with the electric stove, the voltage on the heating elements is 100 V. There is grounding in the socket, the electric stove case is not grounded. Is such a phenomenon normal and how to eliminate it?
Can a downhole pump burn out during phase imbalance?
Can a 3-phase submersible pump fail due to phase imbalance? If so, for what reason (what happens to the engine in this case). Thanks for the answer.
How to connect the backlight in the closet through the controller?
I want to connect the lighting in the closet through the controller unit to the lighting control. First, the transformer is connected to the network, and only then the controller unit?
Connecting household appliances in groups
Can you combine in one group an oven (3.2 kW) and power sockets in the kitchen? 6 mm cable And can you combine a washing machine and a dishwasher in one group? 4 mm cable.
What should I do if, during a short circuit, an electrician changes the circuit breaker to an RCD?
The apartment turned off the electricity and the machines in the shield did not rise, there was a circuit. How dangerous is it to “sit” on an RCD? What to do in this case?
Why does a 200-watt bulb burn brighter than a 100-watt bulb?
We connect the 100 W light bulb to the outlet - it is on, the 200 W light bulb is burning brighter. In the second case, the electrons run 2 times faster or are they 2 times larger?
Could there be a short circuit due to wire running on the roof?
A fire occurred in the house due to a shorted electrical wiring. From the pillar is a neighbor’s wire through the roof. Could a circuit have occurred in us because of this?
What RCD should be set if the input automatic 50A?
What is the value of the RCD to be placed in the shield, if the machine is at 50A? From the standard range, the next is at 63 A (after all, probably not 40A, as it is now installed).
One-button turn-on of lamps
How to implement a scheme of alternating switching on of bulbs with one switch. They pressed it for the first time - the first light came on, let it go - it went out. Etc.
Recommend a dimmer for LED lamps
Good evening. Please tell me, what kind of dimmer can I put for LED lamps with a power of 8 W with 220v power supply? Thanks in advance)
The electric oven switches off immediately after switching on
They moved the oven from one apartment to another and it stopped working. You put some mode, the oven turns on and off immediately. What is the reason?
Is it possible to cross wires in the corrugation during wiring?
During the installation of hidden and open wiring laid in the corrugation or cable channel, is it allowed to intersect some lines with others?
Is it possible to connect the welding machine to a conventional outlet?
Good afternoon! Is it possible to connect modern inverter welding machines to a regular outlet or does a special outlet with a large cross-section of a wire be required?
Will the RCD in the shield work correctly?
3 loads of 220, a two-pole circuit breaker, a voltage relay enter the house. If you install according to the sequence of RCDs, will it work correctly for consumers?
