communication power cable

Working temperature: -40 to 60.

Installation environment temperature: not lower than -10.

Minimum bending radius: 15*overall diameter

The cable has good shielding performance, which suits to electrification railway area or non-electrification area, satisfying the railway communication, digital analog integration low capacity wide frequency multi-item integrated transport, improve the transmission quality and the cable multiplex technique. The cable could be buried in soil, installed in cable trench, could bear big mechanical strength. This cable structure is improved, the physical foaming insulation improves the insulation resistance, improved the working environment, decrease the pollutants, uses the high permeability ultra low carbon steel belt Al sheath, the shielding factor is no higher than 0. To improve the interference resistance, uses the argon arc continuous welded pipe technology, increase the hot melt adhesive erosion resistant layer, lengthen the service life. We could use other materials to meet the special properties, like ant resistance, cold resistance, fire resistance and so on. The techniques reach the international advanced level.

Fire retardant property: the flame is within a limited range; the residual flame will die out by itself in limited time.

The system working voltage is permitted over the nominal voltage 10%. If the cable rated voltage is no lower than the system nominal voltage, the cable could work under the voltage that is higher 10% than the rated voltage.

Working voltage: 450/750v, 600/1000v.

Long time permissible working temperature for the conductor: 70

Environment temperature when at installation: no lower than 0.

Minimum bending radius: 6*overall diameter for flame retardant unarmored cable; 20*overall diameter for armored cable.

Types: RVVZ RVVZ22 RVVZ23 ZA-RVV(ZRRVV ZRVVR)

RVVZZA-RVV is fire retardant soft cable, which is widely used in transit and distribution system on communication stations and high buildings.

RVVZ22ZA-RVV22 is fire retardant steel tape armored cable, which is used in air, pipe, indoor cable trench and buried underground directly.

Railway communication cable adopts the advanced leather-bubble-leather three layers insulation structure; the conductor leather thickness is 0.01mm, which is used to reinforce the bonding strength between the conductor and the insulation, increase the moisture resistance lengthways. The middle tier is physical foam layer which the cells are well-distributed, fine, different to each other; the out layer is solid layer and the thickness is 0.05mm which is used to reinforce the mechanical property and the moisture resistance performance.

This insulation structure not only ensures the excellent electric properties but also has the good mechanical properties and the moisture resistance performance.