The basic data on cable production
Question: About what speak designations of mark of a cable (wire)?
The answer: mark of a cable (wire) is the letter designation characterising a material of current-carrying veins, isolation, degree of flexibility and a design of protective covers. In marks of domestic wires following designations are used:
The first letter indicates […]
Until recently the unique chandelier suspended in the centre of a room, was perceived by us as something self-evident. And if it furthermore was supplemented with a wall sconce, appear, bolshego and to wish it is impossible. However for quite some time now together with requests to design of an interior requests to illumination have […]
«We do not wait for favour by nature, to take them from it – our problem!» – as a result of implementation of this sonorous slogan effect of the person on world around became so strong, that the climate has started to be changed even. All emissions of gases increasing throughout the last 50 years […]
Question: When filling in illumination of a plot is arranged? What lighting equipment is necessary for its installation?
The answer: Filling in illumination forms the uniform light and comfortable environment, therefore is used in places of a congestion of people — on access platforms and parking places, in rest zones, sometimes on children’s playgrounds, and also […]
For installation of heating cables deviflex ™ it is recommended to use an assembly tape devifast ™. A steel tape stack with step 50-100 the tape Cost on the average see makes 1-2 m on 1 m І the areas. Krepit a tape it is possible in any method — dyubelyami, nails, glue, etc. the […]
Question: What requests to installation of insulators on building walls?
The answer: To fastening of wires of branch apply porcelain insulators. Them establish nearby, one under other or in chessboard order on a building wall. The distance between insulators — 25-30 see
If for branch use cable AVTV or AVTU on the house establish only one insulator, […]
Question: How to orient in set of versions of electrolamps, to apply strictly as required?
The answer: Really, today is not only simple, habitual lamps nakalivaniya. Correctly to use functional properties of lighting devices the knowledge of their merits and demerits will help.
Luminescent lamps. Their doubtless advantage before other sources of illumination is profitability and duration […]
Question: With what electroinstallation works begin?
The answer: That wiring has been executed qualitatively, all kinds of electropostings and methods of a lining of wires and cables choose depending on the environment characteristic according to PEU, SNiP.
The chosen kind of posting and method of a lining of wires and cables should correspond also to requests of […]
How to protect from corrosion underground pipes?
Except use of special covers, there is protection widely applied all over the world — cathodic polarisation. It represents the source of a direct current supplying polar potential min 0,85 In, max — 1,1 V.Stantsija consists only of the usual transformer of an alternating voltage and diodnogo the rectifier.
How […]
Question: What represents the system of protective switching-off (UZO)?
The answer: Functionally UZO it is possible to define as the high-speed protective switch reacting to a difference of currents (a differential current) in the conductors making the electric power to protected electroinstallation. The principle of action UZO of differential type is based on application of the […]
QUESTION: What is the "breathing" roofs?
The answer: Unlike a habitual method of stacking of a roofing carpet (continuous prikleyki rolls to the basis), sometimes materials are expedient for stacking, using so-called partial prikleyku. Thereby conditions for occurrence of redundant pressure owing to formation of an air backlash between a roof and the basis are excluded. […]
Question: How to orient in versions of electrolamps, to apply them strictly as required?
The answer: Really, today is not only simple, habitual lamps nakalivaniya. Correctly to use functional properties of lighting devices the knowledge of their merits and demerits will help.
Luminescent lamps. Their doubtless advantage before other sources of illumination is profitability and duration of […]
Question: What system is required, that light at an input in a room joined independently?
The answer: For this purpose it is necessary to establish the automatic infra-red switch only. It represents a combination of the electronic switch and the passive detector of infra-red radiation. Last reacts to occurrence in a zone of its action of […]
In the article conversation will go about principles of electrosupply of a country plot. At once we will specify, within the limits of one review it is impossible to give the detailed analysis: in any case wiring will be conducted by professionals, but the general knowledge of a question will be useful for each owner.
Now […]
Question: How to organise illumination in a hall?
The answer: the Vestibule in apartments, as a rule, has no window. Here it is possible to try to "open" visually the closed space by means of imitation of light proceeding from surfaces. For example, to hang up on perimetre of a hall eaves with the fixtures hidden […]
