Installation flexible cables

Mounting flexible cables EPOKS with flexible copper or tinned copper conductor with plastic insulation, common twist, pair twist, twist by triple or quadruple, with or without water-blocking tape, with screens per conductor, pair, triple, quadruple from different materials and without screen, with common screen from different materials, with plastic sheath, including XL version, including oil and benzene resistant, including flame retardant are designed for industrial automation systems and data transmission networks, transmission of digital and analogue signals, for inter-device mounting of electrical devices operating at rated alternating voltage up to 660 V inclusive with frequency up to 400 Hz, for cables with polyolefin insulation with frequency up to 1 MHz inclusive. Service life is not less than 35 years at operation at the temperature of minus 50 to 80 °?, for cables in XL version at the temperature from minus 60 to plus 80 °?. At laying in the ground, earth for all grades service life is not less than 25 years.