CN201397409Y

CN201397409Y - Non-metal armored optical cable

Info

Publication number: CN201397409Y
Application number: CN2008202322512U
Authority: CN
Inventors: 李越; 盛春敏; 李岩
Original assignee: Shenyang Hengtong Optical Communication Co Ltd
Current assignee: Shenyang Hengtong Optical Communication Co Ltd
Priority date: 2008-12-29
Filing date: 2008-12-29
Publication date: 2010-02-03
Anticipated expiration: 2018-12-29

Abstract

The utility model relates to a non-metal armored optical cable, which overcomes the weaknesses of ordinary lightning-protection optical cable that the stretching resistance is poor and the side-pressure prevention property is poor, and reduces the environmental pollution when in construction and in use, and comprises optical fibers, optical fiber ointment, a loose tube, binder yarns, FRP, a gasketfor packing, an armored layer and an outer jacket, wherein the FRP is arranged at the center, the optical fibers are wrapped by the optical ointment and the loose tube and surround the FRP, the binder yarns are wrapped outside the optical fiber ointment and the loose tube and is sleeved into a polyethylene inner jacket, the armored layer is arranged outside the polyethylene inner jacket, and thepolyethylene outer jacket wraps the polyethylene inner jacket, and is characterized in that waterproof powder is filled between the loose tube and the gasket for packing inside a space which is formedby the binder yarn, a polyester band is bond outside the binder yarns, and the armored layer outside the polyethylene inner jacket is armored by FRP. The optical cable can be widely applied to the fields with worse conditions, has low construction difficulty and can ensure the satisfied penetration performance and long-term stability of the optical cable.

Description

The non-metallic sheath optical cable

Technical field:

The utility model relates to the optical cable technology field, and it is a kind of non-metallic sheath optical cable in definite saying.

Background technology:

The kind of cable is a lot, and in industry and some civilian more important supplying in distribution and the communications equipment facility, power cable, umbilical cable, communication cable and carrier wire etc. all need carry out the armouring protection, and these sheathed cables are generally band-armored.Common cable is outer suit one deck igelite, crosslinked polyethylene plastic or the rubber sheath pipe in the cable core combination of single core or multicore insulated conductor.Band-armored is the plastic sheath outer tube layer at common cable; be wound in one deck armouring protecting pipe with the ribbon spiral about thickness 1-2cm again; also need again suit one deck plastic protecting casing to fix and protect this layer steel-tape armouring layer at the skin of this layer steel band protecting pipe, the structure of Here it is band-armored.Though band-armored has anti-side pressure, preventing destructing performance, because of it makes complexity, cost is high, heavy, bending radius big, it is inconvenient to install, and be subjected to structural limitations, resistance to tension is poor.These defectives have a strong impact on and have limited its range of application.

At present, in the actual use of optical cable, hit optical cable and damage calculator room equipment, need to use a kind of lightning protection optical cable along optical cable in order to prevent thunder and lightning.Original lightning protection optical cable can satisfy the existing general needs that use on lightning protection properties, but because structural design and correlation standard also do not have the lightning protection optical cable can satisfy comparatively abominable construction environment and environment for use.Be embodied in following some: 1, the whole tensile property of traditional no metal lightning protection optical cable is relatively poor, only can satisfy general 1500N pulling force needs;

2, the whole lateral pressure resistant poor-performing of traditional no metal lightning protection optical cable belongs to common communications optical cable category;

3, traditional no metal lightning protection optical cable is filled with a large amount of ointment and is guaranteed that the optical cable product appearance is smooth, but but make connect between the optical cable internal structure external structure loose, thereby reduce the long-term stability of using of optical cable;

4, ointment proportion in optical cable is bigger, and optical cable has the optical cable factice for filling to ooze along optical cable in vertical process of placing easily, and contaminated environment has reduced the optical cable water-blocking performance on the other hand on the one hand;

5, because the inner reinforcement of traditional lightning protection optical cable is made of single FRP, and the ability of its opposing bending is relatively poor, the bending that is not intended to that is easy in work progress causes the optical cable fracture.

Summary of the invention:

The purpose of this utility model provides a kind of non-metallic sheath optical cable.Different and the existing armouring optical cable of structure, it is better to be used for lightning protection effect.

The utility model optical cable comprises optical fiber, optical fiber cream, loose sleeve pipe, pricks yarn, FRP, gasket for packing, armor and oversheath, FRP is at the center, optical fiber is wrapped up with around gasket for packing is centered around FRP by optical fiber cream and loose sleeve pipe, the yarn wrapping is pricked in the outside, be enclosed within the polythene inner, the outside is an armor, at last by the tygon outer sheath encircles, it is characterized in that: prick in the space of yarn wrapping formation, be filled with water-proofing powder between each loose sleeve pipe and the gasket for packing, prick the wrapping of yarn external application polyester belt, the armor FRP armouring that polythene inner is outer.

Advantage of the present invention:

1, non-metallic sheath cable machinery performance height improves resistance to compression and counter-bending characteristic simultaneously.Allow tensile force and wall pressure can bring up to 5000N-20000N.Optical cable can widespread use in the harsh occasion of condition.

2, owing to the introducing of non-metal reinforcement member armor, optical cable has clear superiority than traditional armouring optical cable on weight, reduced difficulty of construction.

3, the utility model is taked the dry type cable core, and the dryness water-blocking material is met water and sharply expanded.The present invention is because the introducing of dryness water-blocking material guarantees that the optical cable permeability performance meets the requirements.Pollution on the environment when reducing construction and use.

4, the utility model adopts the polyester belt wrapping, has both effectively reduced sheath and armor to the optical cable pressure inside, and the hard-pressed bale cable core avoids cable core loosening again, thereby guarantees long-term use stable of optical cable.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is technological process of production figure of the present utility model.

Embodiment:

FRP 7 is at the center of optical cable, optical fiber 1 is wrapped up with around gasket for packing 8 is centered around FRP 7 by optical fiber cream 2 and loose sleeve pipe 3, yarn 5 wrappings are pricked in the outside, be enclosed within the polythene inner 9, the outside is an armor 10, surrounded by tygon oversheath 11 at last, its production technology and existing technology are basic identical, what they were different is in the space of pricking yarn 5 wrapping formation, be filled with water-proofing powder 4 between each loose sleeve pipe 3 and the gasket for packing 8, prick 6 wrappings of yarn 5 external application polyester belts, polythene inner 9 outer armors 10 are to use the FRP armouring.

Concrete technology be with optical fiber 1 painted after, fill optical fiber cream 2, outsourcing pine sleeve pipe 3 formations are secondary coated to optical fiber, secondary coated loose sleeve pipe 3 and gasket for packing 8 are wrapped up with pricking yarn 5 around the positive and negative stranded back of FRP7 central reinforce member, fill water-proofing powder 4 simultaneously, again cable core is wrapped up polyester belt 6 backs with tygon inner sheath 9 parcels, then with protecting 11 cover strandings outward with tygon behind FRP armouring 10 optical cables.Concrete technology is seen accompanying drawing 2.Because the introducing of non-metal reinforcement member armor, optical cable has clear superiority than traditional armouring optical cable on weight, reduced difficulty of construction.The dryness water-blocking material is met water and is sharply expanded.Guarantee that the optical cable permeability performance meets the requirements.Pollution on the environment when reducing construction and use.The wrapping of employing polyester belt had both effectively reduced sheath and armor to the optical cable pressure inside, and the hard-pressed bale cable core avoids cable core loosening again, thereby guaranteed long-term use stable of optical cable.

Claims

1, the non-metallic sheath optical cable, it comprises optical fiber, optical fiber cream, the pine sleeve pipe, prick yarn, FRP, gasket for packing, armor and oversheath, FRP (7) is at the center, optical fiber (1) is wrapped up with gasket for packing (8) by optical fiber cream (2) and loose sleeve pipe (3) and is centered around FRP (7) on every side, yarn (5) wrapping is pricked in the outside, be enclosed within the polythene inner (9), the outside is armor (10), surrounded by tygon oversheath (11) at last, it is characterized in that: prick in the space of yarn (5) wrapping formation, be filled with water-proofing powder (4) between each loose sleeve pipe (3) and the gasket for packing (8), prick yarn (5) external application polyester belt (6) wrapping, the outer armor (10) of polythene inner (9) is to use the FRP armouring.