In the process of laying electrical wiring wire PV 3 can be laid in uneven areas due to its flexibility and versatility. In the material we will tell you about the technical parameters, the scope of application and the specifics of the wire PV 3.
PV 3 is a power copper conductor with polyvinyl chloride insulation. The wire is used to connect electrical appliances, lay power and lighting networks. A characteristic feature of PV3 and the advantage is its flexibility, allowing to carry bends and turns, laying in hard-to-reach places.
Table of contents
PV 3 wire specifications
Wire under the name PV 3 stands for: P - wire, V - insulation of vinyl material, the number 3 - the category of bending of the electrical conductive core. Increasing the number in the name means increasing the degree of flexibility.
The key technical characteristics of the wire PV 3:
- has one core;
- Laying in the power circuits of the electric current and lighting networks;
- possibility of application for AC voltage of 400 V and DC voltage of 1000 V;
- temperature range from -50 to +75 degrees, laying copper wire PV 3 is allowed at a temperature range of -15 degrees;
- PV 3 cable is normally operated at humidity of 100%;
- permissible bending angle perpendicular to its axis;
- The claimed service life of the installation wire PV 3 is about 2 years, in fact it is used for up to 15 years.
Grounding wire has double insulation, thanks to which it is not heated by current and is widely used for industrial purposes.
Area of application
Due to a wide range of core cross-sections, it is widely used in the installation of individual electrical networks, laying electrical cable in an apartment or house, connecting electrical appliances to the network.
Technical parameters make it possible to use PV 3 in the following spheres:
- communication complexes;
- Residential buildings and premises of industrial use;
- wiring inside or outside buildings.
Thanks to the reinforced double layer of insulation made of PVC-plastic, full safety of use is ensured, because such material does not heat up from exposure to high temperatures. Also, the wiring material is not prone to fire.
What are the positive aspects of wire PV 3
A key characteristic of the cable for grounding PV 3 is the use of vinyl insulation material, which prevents heating and ignition. Such material is not destroyed by rodents, as it has a characteristic smell and has a hardness. The power wire is fixed with staples, it can not be nailed so as not to damage the insulation.
Advantages of PV 3:
- can be laid in hazardous areas of production, because it is not affected by aggressive external factors, fungus, corrosion;
- the temperature of the wire is not increased in case of the maximum permissible voltage;
- corrugated insulation allows laying for high voltage networks;
- the cable is suitable for heating water pipes.
Mechanical characteristics and safety allow its use in wooden structures and buildings made of other materials with an increased level of fire hazard.
PV 3 cable rules of use
PV 3 wire is used in almost all spheres. Laying is also possible at low temperatures from - 15 degrees, but the cable must be warmed up beforehand. If these laying rules are not observed, the cable loses its functionality, and its safety level is reduced. Cable is laid in the following places:
- cable ducts;
- boxes and trays;
- sleeves and hoses;
- laying for grounding.
Also, PV 3 is allowed to lay in the voids of buildings, and the bends of the cable should not exceed 5 outside diameters of the wire. When laying, it is necessary to protect the wire from liquids and condensation. The temperature during the passage of electric current must not exceed 70 degrees.
How to choose the right wire PV 3 GOST
When you purchase a wire, it is required to test it, during such a test you can identify its electrical and physical characteristics, as well as identify potential areas of application. In the process of selection it is necessary to test such parameters:
- configuration and dimensions;
- Current-carrying capacity of the strands;
- voltage test;
- Detecting the resistance of the layer of insulating material;
- verification of marking and reliability of packaging.
It is also required to perform regular testing of the wire, as a result of which conclusions can be drawn about the technical parameters during operation:
- resistance of the core to conduct electric current;
- Resistance to bending and impact at low temperatures;
- strength and resistance to rupture;
- thermal shocks;
- thermal resistance to rise and fall of degrees of environment.
Tests are conducted in accordance with GOST 6323 and regulations for this type of wire. The tests are carried out by special organizations in accordance with the technical requirements of the description and technical parameters in operation.
When selecting a wire, the purchaser should take the dimensions of the wire into account, which can be calculated by means of a caliper. It is also recommended to measure the resistance of the cable core: to do this, a piece of wire is cut off and measured. To check the insulation layer, you can measure the thickness of the layer and check the ease of removal. In the selection process, you need to pay attention to match the wire marking with the marking of the coil, which should have the manufacturer's marking. On the cable marking is applied every 45-50 cm.
So, PV 3 is the optimal solution for almost any electrical task in the home or industrial use. In terms of the combination of cost and quality, it will be the ideal solution for most premises.
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