Why is all the equipment and furniture in the office shocking?
All that is in the office is shocking, the electrician found voltage on everything. The director says this is static. What could be the problem?
Why can not you use resistors and chokes to lower the voltage?
Why is it unacceptable to use resistors, chokes, etc. in order to lower the voltage at the power receiver? In this case, there is no galvanic isolation and this is dangerous.
How to calculate the power regulator for heaters?
I want to connect 2 circuits in parallel to 3 heaters in series, heater power 360 W, voltage 73 W. How to choose a power regulator? How to calculate?
Does the winding move if current is applied to the solenoid?
If the winding of the solenoid coil during the flow of current can draw a metal rod into the winding. Will the winding itself contract at the same time?
Why does the line filter turn off when the load is turned on?
When connected to an extension cord of any electrical appliance, the indicator lamp on the extension cord goes out and it turns off. Devices also do not work. What could be the reason?
How to connect a 4-pin button directly?
The button has failed, she has 4 contacts. I want to connect directly without it. In what order do you need to connect the wires?
How to hold the indicator screwdriver?
How to use an indicator screwdriver? Do I need to touch the back of my finger when checking for a phase? What is the difference between LED and neon indicators?
Why did LED lamps burn out quickly?
Why can LED bulbs burn out? They installed 6 lamps in the suspended ceiling and in turn burned out everything did not work, and a third of the declared service life.
Why does the outlet stop working 5 minutes after turning on the load?
When I turn on a powerful load, such as a vacuum cleaner, it first works, and after a while it stops working. What to do? Where to look for a problem?
What mechanical damage should the hose protect?
What mechanical damage does the hose protect the cable from? Will it protect against staples? What blows withstands?
How long will aluminum-copper twist last?
I repaired the light in the kitchen. To connect the wires of aluminum and copper, it was necessary to twist. Load - 1 light bulb. How long can this be used?
What should I do if I find that an electrician has connected neighbors to our meter?
When you turn off our machine to sockets, neighbors lose electricity. Electricians from the UK connected their sockets to our machine. Where to go and what to do?
Why does the insulation on the input cable melt?
The input cable from the floor board to the apartment is melted, and the section that is in the apartment. What is the reason and what to do next?
Short circuit when connecting a television cable to the monitor
When I connect the television cable to the monitor, a short circuit occurs. What to do and what could be the reason?
How to make an electric stove for making shoes?
How to make an electric stove for casting blanks in the manufacture of shoes? Need a pulse heating mode for 15 seconds. How to implement it and what to make of it?
How to connect zero and ground in the electrical panel and in what cases it is necessary
How to properly connect zero and ground in the electrical panel of a private house or apartment. Why do you need to connect the neutral wire to ground. What is said in the PUE.
How to connect a motion sensor instead of a switch?
I connected a motion sensor to the bath. But when you turn off the light switch - the motion sensor is de-energized too. How to connect wires to remove the circuit breaker?
Why does the garland glow in the off state?
I connected the garland through a surge protector. When you turn off the button on it, it continues to glow. Why is this happening? Should the button break the circuit?
Two phases were applied to the single-phase meter Energomera CE-101 - what now to do?
Found 400 volts in the socket, after connecting the electricity. Electricians connected the second phase instead of zero to a single-phase meter. It burned down, do I need to buy a new one?
How many machines to put in the electrical panel: calculation rules
How to calculate the number of machines in the electrical panel of a private house or apartment, as well as what the PUE says about this. Correct calculation of the number of circuit breakers.
