Copper power cable VVGng-FRLS 3x6
FIELD OF APPLICATION OF THE VVGng(A)-FRLS CABLE: For the transmission and distribution of electricity in stationary installations at a rated alternating voltage of 660V and 1000V, frequency 50 Hz, single-core cables are used in direct voltage networks. For general industrial use and at nuclear power plants (NPPs) outside the containment zone in NPP systems of class 2 according to the OPB 88/97 classification (PNAE G –01-011). For power supply of equipment of nuclear safety systems, electrical wiring of fire safety system circuits (fire alarm circuits, power supply of fire extinguishing pumps, lighting of emergency exits and evacuation routes, smoke removal and supply ventilation systems, evacuation elevators), including in explosive zones of all classes, except for explosive zones class B1 CABLE DESIGN VVGng(A)-FRLS: 1- Current-carrying conductor - copper, single-wire or multi-wire, round or sector-shaped, class 1 or 2 according to GOST 22483 2- Insulation - made of polyvinyl chloride plastic compound of reduced flammability (PVC) of reduced fire hazard, index LS in brands means low smoke and gas emission Low Smoke, the FR index is the fire-resistant version of the product Fire Resistance. Twisting - the insulated cores of two-, three-, four- and five-core cables are twisted; two-core cables have conductors of the same cross-section; three-, four- and five-core cables have all conductors of the same cross-section or one conductor of a smaller cross-section (grounding or neutral conductor). Five-core cables of the VVGng-FRLS brands with round cores with a cross-section of 35 mm2 and higher are twisted around a core pressed from a low-flammability PVC hose plastic compound. 3- Belt insulation - in cables of the VVGng-FRlS brand from polyvinyl chloride plastic compound of reduced flammability (PVC) with reduced fire hazard, the LS index in the brands means low smoke and gas emission Low Smoke, the FR index is a fire-resistant version of the product Fire Resistance 4- Filler - polyvinyl chloride plastic compound (PVC ) reduced flammability. 5 - thermal barrier made of mica-containing tape TECHNICAL CHARACTERISTICS OF VVGng(A)-FRLS CABLE: Type of climatic modification of UHL and T cables, placement categories 1 and 5 according to GOST 15150-69. Operating temperature range: from -50°С to +50°С. Relative air humidity at temperatures up to +35°C: up to 98%. Laying and installation of cables without preheating is carried out at a temperature not lower than: -15°C. Minimum bending radius when laying: single-core cables – 10 outer diameters; multi-core cables – 7.5 outer diameters. Nominal frequency: 50 Hz. The maximum permissible heating temperature of the cores at short circuit currents: +160°C. The duration of the short circuit should not exceed 4 s. Permissible heating of cable cores in emergency mode: no more than +80°C. The duration of cable operation in emergency mode should not be more than 8 hours per day, but not more than 1000 hours over its service life. Construction length of cables for sections of main cores: 2.5 – 16 mm2 – 450 m 25 – 70 mm2 – 300 m 95 mm2 and above – 200 m Service life: 30 years. Warranty period: 5 years from the date of commissioning of the cables.
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