Brief description of kabelyKabel vvg – one of the most famous types of conductors used for electrical wiring in buildings, power plants and industrial facilities, distribution and lighting, as well as in various industrial devices and machines. Power cable vvg mark is for the transmission and distribution of electric energy at an operating voltage of 660 and 1000 V at 50 Hz. Design kabelySuschestvuet two classes vvg cables – single core and multicore. Stranded cables are manufactured with 2, 3, 4 and 5 conductors, with zero-residential or residential grounding. Insulation stranded cable running in different colors, while for the zero-lived characteristic blue or light blue exclusion, to live earth-green-yellow. vvg cable core is made of copper I or class ii twist (for the sections of 16 mm2 and 25 mm2 used multiwire conductor) Insulation – pvc, a common insulating sheath lap – from pvc plastic. Learn more on the subject from Danny Meyer. The outer shell is resistant to sunlight and do not flame retardant. Details can be found by clicking NY Museums or emailing the administrator. Technical and operational harakteristikiSilovoy cable vvg designed for operation in ambient temperatures from – 50 C to + 50 C, relative humidity up to 98% (at + 35 C).
Limiting long-term allowable heating temperature cable cores in the operating mode to + 70 C. The maximum permissible temperature of the core heating cables in an emergency mode or overload + 80 C with heating duration is not more than 8 hours per day and 1000 hours for the entire term of service. Maximum permissible temperature of conductors under short circuit (up to 4 sec) + 160 C. Cables vvg for 10 min. stand the test of alternating voltage 3 kV and 3,5 kV cable with an operating voltage of 660 V and 1000 V respectively. Laying and installation Cable vvg without preheating at a temperature not lower than -15 C. The minimum bend radius when installing 10 Dn for single cable and 7,5 for stranded Dn (Dn – outer cable diameter) Electrical insulation resistance, calculated for 1 km length at 20 C for core cross-section 1,0 – 1,5 mm2, is at least 12 mw, with a cross section 2.5 – 4,0 mm2 – not less than 10 mw, 6 mm2 – not less than 9 mw, 10 – 240 mm2 – not less than 7 mw. The warranty period vvg cable – 5 years life – 30 years.
Scope primeneniySilovoy vvg cable with rated voltage of 0.66 kV and 1 kV applied to power plants, local networks, industrial, distribution, lighting devices, as well as wiring in homes and business premises. Cables in ducts, tunnels, indoors, the walls of buildings and structures in the open air. Not recommended laying in the ground. In all these cases should be possible mechanical damage and high tensile forces.