Wiring methods in hazardous areas. Requirements for the design of the cable and the installation of the cable line at an explosive facility.
Rules for wire and cable at home. Learn how to ring a cable with a light bulb, multimeter, handsets or transformer.
How to determine the water resistance of the cable by marking (work in the aquatic environment)?
What is automatic re-inclusion of power lines and why is it needed. The principle of operation of the reclosure. Automation requirements for re-inclusion.
How is the joint laying of power and low-current cables. Installation methods for cable lines of various voltages. Presented norms and requirements.
The neighbors on top made repairs. The automatic was knocked out, clearly somewhere KZ. There is no electricity in the kitchen, corridor and the small room adjacent to them. What to do?
Often the voltage jumps in the network (from 190 to 270 V). Gardening is connected from a step-down transformer. Could it be from overload on one of the phases?
Is it possible to connect the LED strip with the power supply to a double switch so that the light turns on from one switch and the LED strip from the other?
My maximum in reading electrical circuits is to connect a reversible motor. But I can’t read how to connect the RCH and so on. How to learn?
Help me find an Apelson hood motor. The inscription on the engine K7 220-240v, 50Hz 80W, Class 130 1.5μF ZhongShan GaoWei Appllance manufacturing Co. Ltd
At whose expense does a failed electricity meter change at the entrance to a non-privatized apartment?
Hello! Who should change a faulty electricity meter at the entrance to a non-privatized apartment? The counter is located on the landing.
The device, the principle of operation and the purpose of the indicator relay, which is also called a signal. Find out what the indicator relay consists of and how it works.
What is a short circuit, because of what it arises and what danger is it. Causes of a short circuit, methods of prevention and consequences from it.
The device, principle of operation and purpose of the overcurrent relay. Find out how the current relay works, what it consists of and what it is used for.
The main classification of premises according to the danger of electric shock. How premises are classified according to the degree of electrical hazard according to the EMP
How is the load distribution in phases in a private house and apartment. The load distribution diagram and video are an example of an assembled shield. Norms of phase imbalance.
Overview of the main types of failures of Nivona coffee machines. Causes of breakdowns, as well as tips for repairing Nivona do-it-yourself coffee machines.
Graphs and formulas showing the dependence of the resistance of the conductor on temperature. The effect of heating metals, liquids and gases on their resistance.
Tips on how to make lighting for flowers in the apartment with your own hands. What lamps to choose for lighting colors and how to make a rack.
I'm going to make the installation of an oven in Khrushchev. You say that a ground outlet is required in the outlet. Can I connect the oven without grounding?
Is it possible to connect a TV remote control at 3.7 volts, i.e. through a lithium-ion battery?
Basic protective measures for indirect contact. Learn how to protect yourself from electric shock when you accidentally touch a live electrical system.
What does the color temperature of LED lamps mean and what should it be. Table and tips to help you choose the color temperature of LED bulbs.
Step-by-step instructions on how to make a street lamp with your own hands. Photo and video examples of the assembly of a street lamp from improvised means.