Novel non-metal layer-twisting mining optical cable

A non-metallic, layer-twisted technology, applied in the field of optical communication transmission, can solve problems such as communication interruption, optical cable damage, and potential safety hazards, and achieve the effects of avoiding lightning strikes, potential safety hazards, and low cost

Inactive Publication Date: 2014-08-20
ZHEJIANG SHIP ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, metal phosphating steel wire is usually used as the reinforcement core of optical cables. Although the metal reinforcement core has strong tensile properties, in special occasions such as mines where lightning occurs frequently, discharge will occur between the metal reinforcem

Method used

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  • Novel non-metal layer-twisting mining optical cable
  • Novel non-metal layer-twisting mining optical cable
  • Novel non-metal layer-twisting mining optical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Weigh the glass fiber according to Example 1 in Table 1, carry out hot air oxidation treatment at 500°C for 2h, then weigh the carbonate coupling agent, and dip the glass fiber after hot air oxidation treatment in the carbonate coupling agent for 1h activation Then dry it at 100°C.

[0043] Then weigh PA66, epoxy resin, compatibilizer, initiator and the above-mentioned treated glass fibers, add them into a high-speed mixer and mix evenly, and then extrude and granulate in a twin-screw extruder to obtain FRP pellets. Wherein, the extrusion temperature of the extruder is 200° C., the feeding frequency is 30 Hz, and the rotational speed of the main engine is 300 rpm.

Embodiment 2

[0045] Weigh the carbon fiber according to Example 2 in Table 1, carry out hot air oxidation treatment at 500°C for 2h, then weigh the carbonate coupling agent, dip and activate the carbon fiber after the hot air oxidation treatment in the carbonate coupling agent for 1h Dry at 100°C.

[0046] Then weigh PA66, epoxy resin, compatibilizer, initiator and the above-mentioned treated carbon fiber, put them into a high-speed mixer and mix evenly, and then extrude and granulate in a twin-screw extruder to obtain FRP pellets. Wherein, the extrusion temperature is 200° C., the feeding frequency is 30 Hz, and the rotational speed of the host is 300 rpm.

Embodiment 3

[0048] Weigh the PBO fiber according to Example 3 in Table 1, carry out hot air oxidation treatment at 550°C for 1 h, then weigh the carbonate coupling agent, and dip the PBO fiber after the hot air oxidation treatment in the carbonate coupling agent for 2 h Then dry it at 120°C.

[0049] Then weigh PA66, epoxy resin, compatibilizer, initiator and the above-mentioned treated PBO fiber, put them into a high-speed mixer and mix evenly, and then extrude and granulate in a twin-screw extruder to obtain FRP pellets. Wherein, the extrusion temperature is 200° C., the feeding frequency is 30 Hz, and the rotational speed of the host is 300 rpm.

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Abstract

The invention relates to a novel non-metal layer-twisting mining optical cable which includes a cable core and a sheath assembly which is installed outside the cable core in a sleeved manner. The cable core includes a reinforcing core and at least one optical-fiber bushing which is twisted around the reinforcing core. A plurality of optical fibers are installed in each optical-fiber bushing and the optical-fiber array methods in the optical-fiber bushings are different. The sheath assembly includes an external sheath, a sheath, a reinforcing layer and an internal sheath. The internal sheath, the reinforcing layer, the sheath and the external sheath wrap the cable core sequentially from inside to outside. The reinforcing layer includes a plurality of stiffeners which surround the internal sheath uniformly. A cable opening rope is arranged in the external sheath. A cable paste fills a part between the cable core and the internal sheath. The stiffeners and the reinforcing cable are made of an FRP material so that the optical cable is high in tensile strength, capable of meeting demands of optical fibers with a large number of cores and preventing thunder strikes and blast of combustible gases caused by generation of static electricity, and simple to lay.

Description

technical field [0001] The invention relates to a layer-stranded optical cable, in particular to a novel non-metallic layer-stranded optical cable for mines, which belongs to the technical field of optical communication transmission. Background technique [0002] With the rapid development of the communication industry, optical cables are widely used in the communication industry, among which layer twisted optical cables are the most widely used optical cables. Because the existing layer-stranded optical cables need to bear large tension, side pressure and other external forces during the laying process, it is necessary to add a central strengthening member in the center of the optical cable, and the strengthening member is usually made of steel, which increases the length of the optical cable. The weight increases the difficulty of laying. [0003] At present, metal phosphating steel wire is usually used as the reinforcement core of optical cables. Although the metal reinf...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 蒋建春
Owner ZHEJIANG SHIP ELECTRONICS TECH
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