Did the house lamp burn out? The easiest way is to throw it in the trash, but you can make it ... another, and if there are several lamps that have burned down, then you can do it .... by repair.

If you at least once held a soldering iron in your hands, then this article is for you.

You can turn on the fluorescent lamp up to 30 watts, without a starter and throttle, using a small scarf removed from our economy lamp. At the same time, it will light up instantly, with a decrease in voltage will not ‘Blink’. This lamp burns out in two ways ...

Electricity supply to apartment buildings and private houses.

How many of us think about how electricity gets into our home. Remembering school physics lessons, you can draw about the following diagram:

Electricity is generated at power plants, then transmitted through the high-voltage power lines (high-voltage power lines), then it gets to city and regional distribution zones.

After the RES, electricity goes to the transformer substations, where it drops to the required 380/220 Volts. And these same 380/220 volts we get in the end at home. Here we will consider the last step in more detail ...

What are touch switches? Initially, the concept of touch switches meant switches with a contact plate, when touched, the load turned on and off. There are no mechanical moving parts in the touch switches.

With the advent of new devices, the concept of touch switches has changed a bit. Now, the concept of a touch switch includes all devices for which control is not required to use any direct physical impact.

The most common touch switches include: IR sensors (motion sensors), volume sensors, acoustic sensors (responsive to sound), touch switches in the form of an ordinary switch, but without a movable key ...

An electrician is the science of contacts ... Almost every electrician knows, or at least heard this phrase. And the fact that this phrase is not taken from the ceiling, many learn in practice.

Almost all the problems associated with electricity arise due to congestion in the wiring, which is quite relevant today, or because of poor contact in the soldering (dose) boxes or in the end devices (sockets, switches, lamps) themselves.

How is it better to connect the wires so that there is a reliable contact and so as not to have problems in the future? To begin, let's look at which compounds are most often found ...

Logical elements operate as independent elements in the form of microcircuits of a small degree of integration, and they are included as components in microcircuits of a higher degree of integration. Such elements can be counted more than a dozen.

But first, we’ll only talk about four of them - these are the elements AND, OR, NOT, AND-NOT. The main elements are the first three, and the AND-NOT element is already a combination of the AND AND NOT elements. These elements can be called "bricks" of digital technology. First you need to consider what is the logic of their action?

Recall the first part of the article on digital circuits. It was said that the voltage at the input (output) of the microcircuit within 0 ... 0.4 V is a logic zero level, or a low voltage level. If the voltage is within 2.4 ... 5.0 V, then this is the level of a logical unit or a high level voltage ...

Most manufacturers of sockets, switches spend considerable money on ensuring maximum security for ordinary consumers and raising the level of comfort during the operation of electrical appliances.

For example, many manufacturers equip their sockets with protective curtains. It will not work to insert any foreign object other than the plug from electrical appliances into the outlet of the outlet.

These sockets are ideal for installation in apartments where young children grow. For the curiosity of the kids is no secret to anyone, many of the kids constantly strive to stick something into the socket outlet. In addition, recently, almost everyone who makes repairs install sockets at a level of 35-40 cm from the floor. The presence of curtains also serves as additional protection against ingress of foreign objects, dust, moisture into the outlet mechanism ...

Each technical device has two birthdays: the discovery of the principle of operation and its implementation. The idea of ​​a transformer after seven years of hard work on the “transformation of magnetism into electricity” was given by Michael Faraday.

On August 29, 1831, Faraday described in his diary an experiment that later went into all physics textbooks. On an iron ring with a diameter of 15 cm and a thickness of 2 cm, the experimenter wound separately two wires with a length of 15 m and 18 m. When a current flowed along one of the windings, the arrows of the galvanometer on the terminals of the other deviated!

The scientist called the simple device an "induction coil." When the battery was turned on, the current (needless to say, constant) gradually increased in the primary winding. A magnetic flux was induced in the iron ring, the magnitude of which also varied. A voltage appeared in the secondary winding. As soon as the magnetic flux reached its limit value, the "secondary" current disappeared ...

The article will be interesting to people who decided to independently change the wiring in the apartment, house.

If you believe the statistics, the average homeowner (sorry for the officialdom) makes cosmetic repairs every 3-5 years, major repairs - once every 8-12 years. What is a facelift? This is a replacement for wallpaper, painting the ceiling, walls, windows, batteries ... That is, repair without significant investments.

Overhaul implies something more that requires significant financial costs. With major repairs, many change plumbing, heating appliances, tiles in bathrooms and in the kitchen. Someone is changing the flooring. Instead of old linoleum, they lay a laminate. There are many options. Everyone makes repairs based on their financial capabilities.

During the repair process, do not forget about the wiring ...