Power transmission over a distance without wires
How is the wireless transmission of electricity over distances. The history of the development of technology for the transfer of electricity without wires.
Characteristics of the heating wire PNSV
Technical characteristics and decoding of the marking of the PNSV wire. Where is the heating wire used and why is it needed. Analogs of the PNSV wire.
What to do if the machine is triggered, but not immediately, but after 5 minutes of operation?
Machine 140A-C2A knocks out after 5 minutes of work! I changed the terminal blocks in the junction boxes, extended the contacts as necessary, the problem did not disappear!
Which RCD block to choose for a washing machine and is it needed at all?
Why is the RCD block not installed in washing machines? Is it possible and necessary to install an RCD with the RCD, if so, what power and how to choose it?
Moving an electricity meter to another wall in the house
It is necessary to transfer the meter located inside the private house from one wall to another. What documents do you need to provide? Or is there enough withdrawal request?
What wire and automatic machine should I use to connect a 4.5 kW electric boiler?
There is an electric boiler with a capacity of 4.5 kW (three heating elements of 1.5 kW each). What section of the copper wire to connect to the electric boiler and which machine to choose?
Why the RCD in the shield does not turn on?
Tell me why the RCD does not turn on. I turned off the RCD manually, turned on the drill, it does not work. I pulled out the drill, but I can not turn it on the RCD. What is the reason?
Can the equipment burn out due to the fact that the zero in the shield was turned off?
Burned household appliances in the house. An electrician found that zero was turned off there. Can a disconnected zero cause equipment failure?
Is it possible to power a 220V drill from a 36V outlet?
I know that the question is funny, but still. You need to connect a drill to the vegetable store, and there are 36 V. sockets. Most likely it just will not work?
Connection of the hob to a wire with a cross-section of 3x4 mm2
Can I connect a 7.8 kW hob with a 3x4 mm2 wire to a single-phase 220V network? The same wire with a cross section of 4 mm2 sticks out of the wall.
Who should pay for cable replacement from post to shield?
There was a cable break (passing from the pole to the shield) due to bad weather conditions. Who should change this? What cable is needed? How much does it cost?
What to do if an RCD on 100 and 300 mA is triggered?
It was a RCD 100ma, it began to knock out, changed to 300ma. Turned on all appliances, everything is ok. We left, after 4 hours we arrived home RCD disconnected. How to be in this case?
Can I connect two batteries of different capacities in parallel?
Two batteries of the same voltage 36 volts. Capacities are slightly different 6 mA / h versus 7.8 mA / h. Can they be connected in parallel? The goal is to increase capacity.
Cable Specifications OLFLEX CLASSIC 110
Design and specifications of OLFLEX CLASSIC 110 cable. Where this conductor is used and who produces it. Section table OLFLEX CLASSIC 110.
Choosing a cable channel for wiring over the cable cross-section and other parameters
Tips on how to choose a cable channel for wiring by type of design and cable cross-section. Cable channel filling table. The main mistake in choosing.
Scheme of the electrical panel of a 2-room apartment
Redoing the wiring and shield of a 2-room apartment. There is not much experience (your site and technical education). I am attaching a drawing of the shield, waiting for a lot of stones in my garden.
Why does the machine knock out when connected to the flashlights?
Knocked out one of the guns, we removed it from the chain with a gun, then turned on the remaining 3 lights and knocked out another one. What is the reason for the operation?
Is the handle of the high voltage disconnector energized?
Is the handle of the high-voltage disconnector under voltage both under normal conditions and in conditions of high humidity, rain, snow?
Additional grounding of cable trays
Do you need an additional connection between the metal trays of cable routes, if during installation the trays enter into each other and are pulled together by a bolt connection?
What is grounding and what is it for
What is grounding and what is it for. The device and principle of operation of the grounding system. Definition of the concept in simple words.
How to organize cable lightning protection at home
What is cable lightning protection, how to calculate and install it. The advantages of a lightning conductor on the roof of a private house.
Can an oil heater wind up to 900 kW per month?
They sent an electricity bill of about 2000 kW, which turns out to be 900 kW per month. Can the Scarlett sc 1154 oil heater reel in how many kilowatts?
Why does the lamp work properly in the kitchen, and in the room, when it is turned off, it continues to burn faintly?
I connected the LED lamp in the kitchen - it works properly. I connected it in the bedroom - the LEDs dimly light off. What is the reason?
Is the gas generator zero current or not?
Zero will not be shocked because it is deafly grounded. And if you start a gas generator with an output of 220V, without a dullly grounded neutral, then how will zero behave?
