Brief description of the power cable Power cable VBbShvng VBbShvng used for power transmission and distribution in fixed installations and is designed for voltage of 660 V or 1000 V at 50 Hz. Also possible to use insulated cables VBbShvng in networks with a constant voltage to 2500 V. Prudential has similar goals. The construction of the power cable Power cable VBbShvngKonstruktsiya VBbShvng cables are available with single or stranded copper conductors round sectoral or cross-section. In the multicore cable insulation of PVC compound has a distinctive coloring. Top conductors are protected by the waist insulated PVC plastic armor and two steel belts, and the coils of the upper band close the gaps between the turns of the bottom. The shell is made of PVC plastic low goryuchesti.Tehnicheskie and operational characteristics of the power cable Power cable VBbShvng VBbShvng can be operated at a temperature of -30 C to +50 C and relative humidity up to 98% (at +35 C). Limiting long-term exposure temperature heating cables in a live operating conditions + 70 C, in an emergency mode or overload it of + 80 C (duration of heating at no more than 8 hours per day and 1,000 hours of lifetime). Short-circuit (up to 4 seconds), the maximum permissible temperature of the heating cable conductors + 160 C.
Maximum operating voltage mains cable 0.66 -3 kV kV cable 1 kV – 3.5 kV. Laying and installation of cables without VBbShvng preheating is carried out at temperatures below -15 C. The minimum bend radius when installing single conductor Cable – 10 Dn, stranded – 7.5 Dn (Dn – outer cable diameter). Construction length of cables for the main sections of conductors: 1.5 – 16 mm2 – 450 m, 25 – 70 mm 2 – 300 m, 95 mm2 and above – 200 m. The warranty period of the power cable VBbShvng 5 years, lifetime – 30 let.Sfera of the power cable Power cable VBbShvng VBbShvng used for laying power lines underground, tunnels, mines, canals, and in the open air, provided that it is not exposed to strong expansive moments. Use this cable with the existence of actual danger of mechanical damage to the line in operation, in fire and hazardous areas.