КВТ-1, КВТ-2 under Belarus quality requirements 500017371.022-2002 High-frequency telecommunication cables

Технические характеристики
Коэффициент затухания: 
0.72
Волновое сопротивление: 
75Ом
Мин. температура: 
-40°С
Макс. температура: 
70°С
Строительная длина: 
25м
Срок службы: 
8лет
Другие характеристики: 
APPLICATION High-frequency telecommunication cables are designed for collective and individual reception aerials. КВТ-1 - high-frequency telecommunication cable; КВТ-2 - high-frequency telecommunication cable, small-sized. DESIGN INNER CONDUCTOR - copper single-wire. INSULATION - polyethylene of low density. OUTER CONDUCTOR - a braid from copper wires with diameter 0,13 mm, percentage of coverage of braiding is 40 - 60 %. SHEATH - polyethylene or PVC-compound. TECHNICAL DATA Characteristic impedance is (75±5) Ohm. Attenuation constant at frequency 200 MHz for a cable КВТ-1 is no more than 0,45 db/m, for a cable КВТ-2 is no more than 0,72 db/m. Range of operational temperatures is from -40°C to +70°С. Cables resist to air humidity up to 98 % at an ambient temperature up to +35°C. The average bending resource of cable is not less than 10000 cycles on ±90°. The minimum bending radius at installation at the temperature +5°С and above for a cable КВТ-1 is 40mm, for a cable КВТ-2 is 30mm; at the temperature below +5°С for a cable КВТ-1 is 70mm, for a cable КВТ-2 is 60mm. The delivery length is not less than 25 meters, 10m and more cable pieces are possible to deliver but not more than 20% of total length of batch. Service life of cables is 8 years.