Councils about electroinstallation works in apartment

Service conditions and electroconducting installation (environmental conditions, mechanical loadings, the maximum current and etc.) define cable type. The electric current in houses and apartments is distributed by means of elastic trehzhilnogo a cable - more often in plaster (the latent conducting) or on it (external) - and deduced to consumption points, for example to sockets. To these points of consumption the cable with separate rigid veins is laid, and electric devices incorporate to points of consumption by means of flexible cords of a food (for example, it is cords of a food of any home appliances). Usually it trehzhilnye food cords. Under their cover there are wires, which also zaizolirovany: the current-carrying phase differs brown or black isolation, an average wire - a zero - dark blue (blue) isolation and a protection wire - flavovirent isolation. Metal parts of electrodevices are connected with a wire of protection which is called as the earth or grounding. It is an obligatory measure of protection from defeat by a current. Often, in the faulty electrodevice pressure gets on its case which acts in film through a protective wire. Two-core cords of a food with a flat plug on the European standard can zapityvat only those devices which have double protective isolation. Cable choice The cable has the general braid-isolation for several veins being in one sheaf. Cables differ from each other on a design, section of veins and quantity of veins. Veins of the cables intended for the fixed lining on plaster or under it, represent massive wires from copper. At flexible and vysokogibkih cables of a vein from multiwire wires, are braided among themselves. The section of veins speaks about the vein is calculated on what current strength, the maximum loading in amperes (). A wire, mm section 1,5. kv, maintains loading in 16 And. With pressure of 220 Volt () can be connected To a network the consumer capacity of 3520 Vt (ВхА=Вт). The Trehzhilnyj cable, for example, has a designation 3x1,5 mm.kv. Flat cable: intended for the fixed lining on plaster or under it. The lining of such cable in the open air, in the earth and in premises with the raised humidity (in souls, in bathrooms) is not supposed. Underground cable: a lining in cable channels and a ground. Flexible cables: for connection of non-stationary consumers, for example home appliances: at normal requirements - with polyvinylchloride isolation. Ready cords of a food Until recently the Russian building norms for premises did not provide trehzhilnaja conducting (with a protective wire), as well as trehzhilnye cords of a food for household appliances. It spoke low power of domestic household appliances (a current to 6А). New powerful devices and their increased quantity in the house oblige to pass to the European standard. On sale there are ready cords of a food with already napajannoj a plug, with a braid, isolation and with sleeves-tips for connection. Always it is necessary to remember and external illumination of the house. As street fixtures or lanterns now can be got without problems and on sale they are available in wide assortment.