Water submersible runway runway

Submersible cable is one of the most necessary elements for the installation of various types of installations. It is used to connect equipment located under water to the electrical network. Such equipment is: pumps mounted in wells, wells, tanks, and so on. Also submersible cable used for drilling, drainage and other equipment during water works.

Features
VPP is a submersible wire. It is able to withstand a high level of water pressure at a depth of up to 30 meters. Analogues of VPP are VPV and KVV.
The product of this type has the following features:
high strength;
100% moisture resistance;
frost resistance;
high level of resistance to sea water, mechanical influences and vibration load during operation.
The maximum service life is 6 years. In most cases, it depends on the operating conditions and features of the work process. At high temperatures, the service life of the wire is reduced. Under normal conditions, the service life of the product is 32 hours. When operating at a temperature above 000-50°C, the resource is reduced by 60 hours.
Design features
The VPP marking cable consists of a multi-wire copper core, which provides the product with flexibility and effective use under water. Wires with different cross-sections are available on the market: the minimum size is 1,2 mm2, the maximum is 70 mm2. The length of the wire is from 90 to 600 meters.
Main characteristics
Technical parameters of the cable:
the maximum voltage level is 1 kV;
the minimum bend radius is 10 wire diameters;
pressure resistance level — 7 MPa;
flexibility class 2. To prevent an increase in the load on the conductor, it is necessary to fix the cable during installation;
insulation resistance at a voltage of 380 V — 1000 MΩ, at a voltage of 660 V — 2500 MΩ. This indicator can be measured after 3 hours of the product being in the water;
the cable can be used at temperatures from -40 to 80 °C.
The guaranteed operation of the product is 2,5 years.
Price
The cost of the VPP cable depends on the following characteristics:
cross-sectional size;
maximum voltage;
manufacturer.
When choosing a product, it is necessary to pay attention to the documentation. The manufacturer must have a certificate of conformity and a quality guarantee.