High-temperature bend-resistant mobile instantaneous tensile cable

Abstract

The invention discloses a high-temperature bend-resistant mobile instantaneous tensile cable, which comprises four groups of wire cores, a wrapping tape layer and a sheath layer, wherein each wire core comprises aramid ropes, tinned copper conductors, a high tear-resistant silicone rubber insulating layer and a polyester tape insulating wrapping tape layer; the aramid ropes are evenly arranged in the tinned copper conductors; the high tear-resistant silicone rubber insulating layers extrude and wrap the outside of the tinned copper conductors; each polyester tape insulating wrapping tape layer is arranged outside the corresponding high tear-resistant silicone rubber insulating layer; the four groups of wire cores are evenly extruded and wrapped with the wrapping tape layer; the sheath layer is arranged outside the wrapping tape layer; and a filling layer is also arranged in a gap between the wrapping tape layer and the wire cores. The high-temperature bend-resistant mobile instantaneous tensile cable has the characteristics of high-temperature resistance, wear-resisting property, good flexibility and high tensile property, and can meet the requirements of special performance of the cable in an operating condition; and the service lifetime of the cable is prolonged.

Description

technical field [0001] The invention belongs to the field of electric cables, in particular to a high-temperature and bending-resistant instantaneous tensile cable. Background technique [0002] Most of the currently used mobile tensile cables adopt a steel wire load structure or a steel wire braided structure to meet the external force that the cable bears during use. Due to the steel wire load-bearing structure of this type of cable, the overall flexibility of the cable is reduced, and the conductor is broken during the bending process, and the service life of the cable is reduced. In addition, due to structural reasons, the tensile force of this type of cable is limited and cannot be adjusted according to the magnitude of the external tensile force. When the instantaneous tensile force is too large, the cable conductor is damaged by external force. According to statistics, due to the unreasonable design of the cable structure, a large number of conductor fractures and in...

AI Technical Summary

Problems solved by technology

Due to the steel wire load-bearing structure of this type of cable, the overall flexibility of the cable is reduced, and the conductor is broken during the bending process, and the service life of the cable is reduced.

In addition, due to structural reasons, the tensile force of this type of cable is limited, and it cannot be adjusted according to the magnitude of the external tensile force. When the instantaneous tensile force is too large, the cable conductor is damaged by the external force.

According to statistics, due to the unreasonable design of the cable structure, a large number of conductor fractures and insulation rupture accidents occur in such cables within 1 to 7 days of use.

Images