Characteristics and scope of the wire PV-4

The PV-4 wire is a flexible installation wire with a multi-wire core. It can be used for stationary connection of electrical equipment and assembly of electrical circuits, power, lighting circuits. It is more flexible than PV-3, and more so than PV-1. In this article, we will consider the characteristics and scope of the PV-4 wire.

Design Features

To begin, consider the decoding of the marking:

  • P - wire;
  • B - PVC compound as insulation;
  • 4 - flexibility class, at small sections it can be equal to 5, in most cases no less than 4.

The design includes a flexible copper multi-wire core and single-layer PVC insulation. Conducting veins are made according to GOST 22483.

Flexible conductor design

The insulation can be monochrome, for example: yellow, red, blue, green, brown, black. Or two-color, for example, green-yellow, the color of the grounding conductor, is used for PV-4 core sections up to 6 square meters. mm

Insulation colors

Key parameters and specifications

What does the PV-4 wire consist of, we figured out. Now we should consider in more detail in what conditions it can be used. PV-4 has the following parameters and technical specifications:

  1. The rated alternating voltage is 450 V.
  2. Frequency - 400 Hz.
  3. The rated constant voltage is 1000 V.
  4. Type of climatic modification OM (general climatic marine) and CL (cold climate).
  5. Category of accommodation - 2 (under a canopy, indoors, outdoors).
  6. The minimum temperature is -50 degrees Celsius.
  7. The maximum ambient temperature and the maximum permissible core heating temperature is +70 degrees Celsius.
  8. Maximum humidity - 100%, at a temperature of 35 degrees Celsius.
  9. The minimum temperature for installation is -15 degrees Celsius.
  10. The minimum bending radius is 5 outer diameters of the wire.
  11. The insulation resistance at acceptance is 1 MΩ, and during operation at least 10 KΩ.

The wire is sold in bays 100 m long - this is its construction length. There are other packages, both large and smaller, it depends on the manufacturer. Due to its design, the PV-4 wire is resistant to vibrations, bends, mechanical shocks, and insulation materials do not spread combustion. Insulation resistant to mold.

It is worth noting that manufacturers guarantee a 2-year service life from the moment the wires are put into operation, while the real life of the PV-4 reaches 15 years.

The table below shows the cross-sections and dimensions of the PV-4 wire:

Wire cross section PV-4

Application area

Consider where the PV-4 wire is used. This type of conductor is suitable for use in areas with a temperate, warm, tropical climate. For use in regions with a cold climate, PV-HL is produced by the industry.

Wires are suitable for operation in rooms or under awnings, in tents, bodies, trailers, garages, metal structures.Moisture condensation should be avoided.

If we talk about specific applications, then you can use PV-4 for assembly of electrical panels. It is convenient to work with him, because he bends easily. Also suitable for connecting electrical equipment in a car, but this must be done carefully. In this case, if the wires go outside the cabin, it is better to use a cable or wire with two layers of insulation. It can be used for installation in products, such as electronic equipment, since PV-4 is flexible enough to be conveniently laid. But don’t forget to wear type tips NSHVIbefore connecting it to the screw terminals of automatic machines and other things.

Connecting a flexible wire to the machine

Another place where the PV-4 wire is used is lighting. It is suitable for connecting power to the lamp, and for wiring inside the lamp.

Analogs and manufacturers

According to the technical characteristics, the domestic analogs of the PV-4 wire are PV-3, slightly less flexible, and the foreign ones are H05V-K and H07V-K with flexibility class 5.

The technical characteristics of the PV-4 wire allow it to withstand a test voltage of 2.5 kV with a frequency of 50 Hz for 15 minutes after being under water for a day.

This brand of conductors is produced by a number of manufacturers, it is worth highlighting from them:

  • JSC Belaruskabel
  • OJSC Tomskcable
  • LLC "Rybinskkabel"
  • JSC Cable Factory Kavkazkabel
  • LLC GK Sevcable
  • Samara Cable Company JSC

The PV-4 wire has sufficient technical characteristics for use in everyday work, for example during installation work and the need to often bend the conductors. Also, its relative resistance to irritants from the environment has allowed its use almost everywhere and in most climatic conditions.

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