ROBITON RM-1, RM-2 - ethen outlet electricity meters or household wattmeters.Unique instruments allow you to measure with high accuracy the amount and cost of electricity consumed, the power of the connected load, and the PM-2 also measures the voltage and frequency of the mains, the current consumed by the load and power, and takes into account the two-tariff day-night payment system. At the same time, the price of devices is such that it makes them affordable for any home.

However, first things first! The meter of consumed electricity - wattmeter ROBITON PM-2 is designed to measure the consumption of electricity by household appliances. In PM-2, you can enter the price of kilowatt hours and find out the total cost of electricity consumed by the connected electrical appliance, for example, for a month. Since two pricing modes are implemented, this model is suitable for ...

In recent years, many of our compatriots, starting the construction of their own houses, give preference to classic log houses. And this is understandable, because these are environmentally friendly buildings made of natural materials.

However, all wooden buildings have one serious drawback, namely a high degree of combustibility of the source materials. Statistics of the Ministry of Emergencies shows that the main cause of the fire of buildings made of wood is a faulty electrical wiring. That is why strict and mandatory requirements are imposed on the electrical installation in wooden houses.

If you plan to build a wooden house, then the priority will be the installation of electrical networks of the future home. You must understand that the quality, and most importantly the correctly completed installation of electrical wiring, is a guarantee of your future ...

When choosing a solar power plant and analyzing the options for operating solar modules, it is important to decide on the potential for obtaining solar energy.

The science of "Insolation" (formed from the term "in solis") is engaged in accounting for the irradiation of the Earth's surfaces by the rays of the Sun. It takes into account the direction of a parallel beam of light rays from the center of the solar disk by geometrical and energy methods, which make it possible to identify for the light flux: direction, cross-sectional area, dependence on time and season, density, exposure in light units.

The location of the solar battery affects the quality of reception of the light flux, is determined by the angle of inclination of its surface relative to the axis of the light rays. In practice, it can be oriented in different ways, but three characteristic options are chosen for calculations ...

A young family with two children (4.5 years and 5 months) made an exchange and moved to a three-room apartment of a nine-story building built in the 80s from reinforced concrete panels with an elevator.

The electrical equipment of the apartment is made according to the TN-C scheme without a common ground loop and PE conductor. An entrance switchboard is installed in each entrance. From it, power cables diverge along the floor shields. On each floor there are 4 apartments of two blocks; right and left with a common corridor. It mounted apartment shields, which are powered by "aluminum noodles" 2.5 mm2. The same wires made all the wiring in the rooms.

The new owner is a home master who can not only hammer a nail, but also beautifully put expensive tiles, repair plumbing, connect a washing / dishwasher, find a malfunction ...

About two years ago, the Raspberry Pi Foundation released a rather interesting device - a single-board computer, the size of a little more than a bank plastic card at a very attractive price. The novelty immediately gained immense popularity, the line of pre-orders for it stretched out for several months.

Raspberry Pi was presented in two trim levels: model “A” and model “B”. Both versions are equipped with a Broadcom BCM2835 ARM11 processor with a clock frequency of 700 MHz and a 256 MB / 512 MB RAM module. Model "A" is equipped with one USB 2.0 port, model "B" - with two. Model “B” has an Ethernet port. The BCM2835 processor also includes a graphics core. Video output is via a composite RCA connector or via a digital HDMI interface ...

Induction soldering stations are contact type stations. The principle of operation of an induction soldering iron was described in the article "Electric soldering irons: types and designs." In short, the principle of operation of an induction soldering iron is as follows.

The soldering rod has a ferromagnetic coating, an induction coil is wound around the rod. High-frequency rectangular oscillations (470 KHz) are fed into the coil, which create eddy currents, Foucault currents in the ferromagnetic coating. Due to losses in the ferromagnet, it is heated, which continues until the temperature reaches the Curie point, at which the magnetic properties of the ferromagnet disappear, and heating ceases. The method itself is called Smart Heat, which can be translated as “smart heat”. The inventor of this method is american company...

An ordinary copper soldering iron soldering iron is not very suitable for soldering modern miniature circuit boards with SMD mounting. You can use it, unless, for soldering household appliances and printed circuit boards with output components, as they say, from case to case.

For the installation and repair of modern electronics, soldering stations are increasingly being used, which have gained great popularity both among professional electronic engineers and amateur radio enthusiasts. This article gives a brief overview of soldering stations, which will undoubtedly help to solve the question of which station is better to purchase.

The miniaturization of electronic components and the appearance of multi-pin microcircuits made it impossible to solder the microcircuit with a conventional soldering iron. Some microcircuits do not have conclusions in the classical sense, for example, microcircuits in BGA packages ...

Installation of cable lines and wires ends with their connection. An electrical connection that ensures the health of the entire circuit. This connection must be reliable, must not allow electrical losses and must be protected from accidental access, that is, it must ensure safety.

It is achieved by using special enclosures and junction (distribution) boxes. And the other two necessary conditions are ensured by the use of special certified clamps or terminal blocks. We will talk about the diversity of the latter. But first, we answer the question: “And why exactly the terminal blocks, in fact?” In fact, why can not do ordinary twisting? After all, you often hear or read that the correct twisting will be more reliable than many terminal blocks ...

In the energy sector, it is often necessary to convert some quantities to others because electric energy is produced by sources of alternating or direct current. Corresponding consumers are created for them: electric motors, transformer devices, household appliances.

In many industries, as in alternative energy, there is a need to exploit consumers from combined sources. Rechargeable batteries are charged, and electronic devices, computer devices are supplied with direct current or rectified from electric power generators with a rotating electromagnetic field.

The inverse task of the electric motors of the sinusoidal harmonics of household electrical receivers from direct current sources is solved by converting electricity into variable using ...

In modern solar power plants, different schemes for connecting current sources are used to transfer the generated electricity to working batteries. They use not the same algorithms, are based on microprocessor technologies, called controllers.

Electricity generated by the solar battery can be transmitted to storage batteries: directly, without the use of switching devices and control devices, through the controller.

In the first method, the electric current from the source will go to the batteries and will increase the voltage at their terminals. Initially, it will reach a certain limit value, depending on the design (type) of the battery and the ambient temperature ...

Nowadays, there are already many industrial devices that are controlled by the GSM (Global System for Mobile Communication) standard — a digital standard for mobile communications or a now familiar mobile phone. This is a burglar alarm, various control cabinets for industrial equipment, or simply separate sockets.

The design in appearance is a regular adapter that plugs into a wall outlet. The load can be switched on by ringing or transmitting.sms by mobile phone. It is also possible manual control using two buttons located on the front panel. The power switched by such outlets, depending on the model, is in the range of 1 - 5 kW, which allows you to turn on almost any load. Multichannel sockets are also available that allow controlling independently multiple loads...

Ventilation of the bathroom and toilet is an integral part of it. Ventilation provides an optimal microclimate in these rooms, both for a person and for objects and interior elements.

Firstly, ventilation significantly reduces the humidity in the room, which is especially true for the bathroom and toilet - rooms with high humidity. Humidity reduction prevents the formation of mold and damage to electrical appliances and interior elements due to increased humidity in the room. Secondly, ventilation eliminates undesirable odors and prevents the growth of bacteria.

Ventilation can be either natural or artificial. In the absence of the possibility of providing natural insulation of the bathroom and toilet, artificial ventilation is used ...