Perforator device. How does he work. Features of fastening of the drill. Cartridge. Impact energy. Cost.

If you are planning to carry out repairs yourself in the house and expect to drill a large number of holes, you, of course, need a hammer drill.

In popularity, the punch is not inferior to electric drills, being one of the most popular electric tools used in the repair business.

The main task of the puncher is the operation of drilling holes in difficult to process materials such as concrete and stone. But, as an addition, there is also the possibility of drilling holes in metal, brick and other materials, the processing of which is often encountered in the process of repair.

Despite the similarity of the principles of action, perforators differ in their characteristics from impact drills ...

The article contains tips that will be useful to all motorists repairing the electrics of their cars.

TIP 1. When repairing any electrical component of the car, be sure to disconnect the ground wire (common wire, usually “-”) from the battery, this will protect you from accidental short circuit and failure of some elements.

TIP 2. Know that the main enemies of automobile electricians are moisture and dirt, which reduce the insulation resistance, thereby contributing to the possible short circuit and failure of electrical appliances and components.

TIP 3. A normal spark plug should have a light brown color, without strong soot and oxidation ...

The economic calculation of the payback and economic efficiency of energy-saving (fluorescent) lamps.

In Russia, every year more and more is not enough electricity. It is becoming increasingly difficult to obtain permission to connect industrial facilities and private households. According to the forecasts of power engineers, the doubling of electricity generation will occur no earlier than in 15 years. Therefore, electricity prices are constantly growing and will strive to reach the average European - 9 rubles / kWh.

However, there is a fairly simple way to achieve energy savings and reduce the cost of its purchase ...

Making a shiny silver or gold plating is not very difficult technically, other difficulties may arise here: it is not easy to get gold compounds. And silver compounds used in electroplating are poisonous: they are mainly cyanide compounds.

Therefore, it is better to make a nickel coating in an electrochemical way. On the surface, you will immediately get a shiny layer of metal (sparkles no worse than gold!), Requiring insignificant machining. The electrolyte should be of the following composition: nickel sulfate 280-300 g / l, nickel chloride 35-45 g / l, boric acid 30-40 g / l ...

Manual for the manufacture of a homemade electric generator 220/380 V.

Those who often leave the city know that a complete lack of electricity or its frequent blackout is not uncommon. People struggle with this by buying gas generators or kerosene lamps and stearin candles.

But there is another way. Motoblock, for plowing and cleaning gardens, has become a national hit. Experience has shown that it can be adapted to generate electricity. As a generator, you can use an asynchronous electric motor, for example, the AIR series. The electric motor must be with a rotation speed of 800-1600 rpm and a power of up to 15 kW ...

How can a girl replace an outlet on her own.

Even the most fashionable interior can spoil such a trifle as an old outlet. Most often, the hostess notices them last, and changing it is simply scary, because you still have to deal with electricity.

Of course, you can call a specialist, ask a neighbor, and the husband probably understands them. But what to do for a young and active girl who still lives without a husband, ends up working simultaneously with those services that can help, and the neighbor does not cause any trust.

In fact, the devil is not so terrible as he is painted. Of course, we are not ardent feminists, but we can easily cope with such a trifle as a socket. So, step by step instructions for replacing the outlet ...

If you have a magnetic starter with burned-out contacts or a broken case, but with a whole 220 Volt coil and a magnetic circuit, then you can make a transformer of not high power and any voltage with it yourself, but from it a charger.

Previously, when there was a malfunction of the magnetic starter, I simply dismantled it for parts or assembled one normal out of two three faulty magnetic starters. Recently I was looking for a transformer to make a charger for AAA batteries (mini-finger type). Three of these batteries are in my flashlight. But recently I came across a magnetic starter with burned out contacts. I disassembled it, I look, there is a 220 Volt coil, there is a magnetic circuit, it remains only to wind the secondary winding and the transformer is ready ...

The manufacture of removable wiring for the garden.

I work as an electrician in our garden community. Most of the houses in our gardening are single-story, summer. It is difficult to protect such a house from looters. Now, when prices for non-ferrous metal have risen, the devastating raids on holiday villages from autumn to spring have become constant.

In my house I made removable wiring. He recommended and helped do the same to his neighbors in the country. Now we do not need to restore power to our garden house from scratch. I think that this method of maintaining electrical wiring in the country will interest gardeners and gardeners ...