In addition to providing reliable power to household appliances, it is very important that home wiring is safe to operate. Safety consists, first of all, in preventing electric shock. That is, home wiring should be performed in such a way as to exclude the possible impact of electric current on a person.

The main methods of protecting electrical wiring is grounding the electrical wiring, as well as the use of appropriate protective devices - residual current circuit breakers, differential machines. In this article, we will consider the question of how to ground the home wiring. Before doing an individual grounding of the wiring, you need to figure out whether it is necessary at all. Often people make grounding in the house, arguing their actions ...

For a long time you will not surprise anyone with a welding inverter. And there is nothing unusual in this, because it is much more convenient for any welder to operate with a compact and mobile device than with a heavy iron transformer. The subject of this article, however, will be precisely the modern welding inverters.

We will try to evaluate many advantages and some of the few disadvantages of welding inverters, consider their various options, and in the end we will compare the advantages and disadvantages so that even someone who is just thinking about purchasing a welding inverter can confidently come to a decision on its purchase. What is a welding inverter today? First of all, it is a compact semiconductor welding machine equipped with all types of shields and equipped with many options that facilitate the work of the welder, even if he is new to the profession ...

Concealed wiring is a type of wiring that provides for the installation of a cable (wire) of the wiring lines in the wall - under a layer of plaster or other finishing material. Such wiring from the point of view of aesthetics is most preferable, since the cable routing is not visible. But at the same time, this feature of hidden electrical wiring creates additional problems if it is necessary to search for cable locations in case of damage to a particular wiring line or if it is necessary to replace the wiring during repairs in the home.

Why else do you need to know the wiring location? Very often, when mounting various interior elements on the wall (wall cabinets, paintings, shelves, TV mounts, etc.), fasteners get into the cable (wire), which leads to its damage. Even more dangerous is that during drilling ...

Sometimes, when there is no marking on the capacitor or there is no confidence in the parameters indicated on its case, it is necessary to somehow find out the real capacity. But how to do it without special equipment?

Of course, if at hand there is a multimeter with the ability to measure capacitance or a C-meter with a suitable range of capacitance measurements, then the problem ceases to be such. But what to do if only a simple household multimeter and some kind of power supply are available, and it is necessary to measure the capacitance of the capacitor here and now? In this case, the well-known laws of physics will come to the rescue, which will allow measuring capacitance with a sufficient degree of accuracy.

First, we consider a simple way to measure the capacitance of an electrolytic capacitor using available tools.As you know, when charging a capacitor from a constant voltage source through a resistor, there is a pattern by which the voltage across the capacitor ...

When comparing lamps for domestic lighting, considering their advantages and disadvantages, in most cases only the material side is considered - that is, how reliable is this or that lamp in comparison with others and how economical it is. At the same time, the most important selection criterion is missed - harmlessness to health, especially for human vision. In this article, we will consider which lamps are the safest for human health, which parameters should be considered when choosing one or another type of lamp.

When choosing light sources, first of all, you should pay attention to the correct color rendering of the lamp. This concept refers to the display in natural tones of various colors. The highest color rendering coefficient for incandescent lamps, halogen lamps, as well as for certain types of compact fluorescent lamps with a five-component phosphor ...

Both in everyday life and in enterprises, it is often necessary to turn on electrical appliances in that part of the room or outdoors where there is no outlet from which the necessary electrical appliance can be powered. This problem is easily solved with an extension cord, the so-called “carry”.

In addition to the function of the extension cord - that is, the ability to turn on the appliance at a certain distance from the plug socket, the carry-out performs the function of branching one plug connector into several, which is important if you need to plug several appliances into one socket. For example, to connect to a computer network, you need several outlets for connecting a monitor, system unit, audio equipment, printer, router, etc. Extenders for technical needs are also widely used, which are used to connect various power tools and devices to the network ...

How many readers of this article, and how often, use solder fat in their practice? Surely the majority are much closer to liquid fluxes applied with a brush or just rosin. Meanwhile, solder fat is widely used as a complete solder flux. Solder fat is available in two types: neutral solder fat and active.

The vaseline-based active solder fat is excellent when it is necessary to solder even large parts of oxidized non-ferrous or ferrous metals, for this reason it is very useful in the household, almost like regular solder (zinc chloride) acid. Neutral solder fat is perfect as a normal flux in the process of soldering any electrical and radio devices, printed circuit boards, etc. It is clear that active soldering fat does not need to be used for soldering radio components, as is soldering acid ...

In this article, I will tell and even show clearly, in pictures, how to transfer the generator to gas. Can I make a gas reducer myself? In many forums, on the Internet, on youtube you will find a bunch of recommendations on how to convert a gas generator to gas. Someone recommends using home-made gearboxes, which I categorically do not recommend doing, there are also ready-made gas kits that allow you to remake the “native” carburetor just for working on gas, while others drill something in the carburetor ...

All this, let’s say, is not the best and safest way to convert a gas generator to gas. Why reinvent the wheel and seek adventure at its fifth point, when everything has already been invented and tested on hundreds of generators.I recommend to purchase such a gas module. How much is a gas kit? The issue price is only $ 50-60. Agree, the money is relatively small. For the money you get a new carburetor ...