Photoelectric composite medium-voltage drum cable with rated voltage of 3.6/6kV-12/20kV and processing technology thereof

Abstract

The invention discloses a photoelectric composite medium-voltage drum cable with the rated voltage of 3.6 / 6kV-12 / 20kV and a processing technology thereof. An optical unit sheath is made from a chlorinated polyethylene rubber material capable of being quickly sulphuretted, so that the optical fiber performance is ensured in the rubber extruding process, and accordingly, all properties of the photoelectric composite medium-voltage drum cable are improved and the service life is prolonged. Besides, owing to the reasonably-designed cable structure and the reasonably-customized processing technology, for example, the stranding direction, the layer-stranding direction and the lay ratio of conductor braided wires, as well as the cabling layer ratio control, are controlled, one frame is changed into an active wire releasing design by cabling equipment, and the design of a weaving reinforced layer and the sulfidization degree of both an inner sheath and an outer sheath are controlled, so that the bendability, the tensile performance and the twisting resistance of the cable are ensured and the service life of the cable is prolonged. In addition, owing to the special neoprene sheath material, the cable is endowed with such favorable properties as ultraviolet resistance, oil resistance, low-temperature resistance, abrasion resistance and the like, thereby having improved service performance and prolonged service life.

Description

technical field [0001] The invention relates to a photoelectric composite medium-voltage reel cable, and also relates to a processing technology of the photoelectric composite medium-voltage reel cable. Background technique [0002] The existing photoelectric composite medium-voltage reel cable can be applied to applications with high mechanical stress, such as port machinery, such as shore container cranes, rail-mounted container gantry cranes, ship unloaders, stackers and reclaimers. and other heavy handling equipment. Photoelectric composite medium-voltage reel cable products are usually laid outdoors and are often used in harsh environmental conditions, such as: long-term sun and rain, day and night cold, frost and snow, corrosion by ultraviolet rays, ozone and other natural conditions, and performance decline Faster, shorter lifespan. During the use of the cable, the cable must withstand tensile, torsion and bending fatigue, resulting in a rapid decline in the perform...

AI Technical Summary

Problems solved by technology

In the photoelectric composite medium-voltage reel cable, the outer sheath of the optical unit is extruded with thermosetting rubber. Since the normal operating temperature of the optical fiber is -40°C-70°C, the temperature of the rubber passing through the vulcanized tube is 150°C- 200℃, the time is 10-20min, the temperature through the vulcanized tube is high, the time is long, it is difficult to guarantee the performance of the optical fiber; in addition, the conductive core and the optical unit in the cable are relatively difficult to control, which will also affect Service life of photoelectric composite medium voltage reel cable

In addition, the performance of the sheath material of the photoelectric composite medium-voltage reel cable is not too high, resulting in relatively poor tensile strength, low temperature resistance, and aging resistance of the cable.

Images