CN2509589Y

CN2509589Y - Nonmetallic central bunched pipe type optical cable

Info

Publication number: CN2509589Y
Application number: CN 01276186
Authority: CN
Inventors: 叶飞; 周春东; 吴静睿
Original assignee: Jiangsu Hengtong Optic Electric Co Ltd
Current assignee: Hengtong Optic Electric Co Ltd
Priority date: 2001-12-02
Filing date: 2001-12-02
Publication date: 2002-09-04
Anticipated expiration: 2011-12-02

Abstract

The utility model provides a nonmetallic central bunched pipe type optical cable, which comprises a cable core and a protective layer, wherein, the cable core is internally provided with an optical fiber and a sleeve tube therein. A nonmetallic reinforcing component which covers the sleeve tube is arranged outside the sleeve tube, or a rope-shaped nonmetallic reinforcing component is arranged in the protective layer outside the sleeve tube. Without metal, the cable will not produce induction in frequent thunderbolt or areas with strong high-voltage electric induction, therefore promising no influence to effect and no damage to the cable and having a more extensive application range.

Description

Nonmetal central beam tube type optical cable

(1) technical field:

The utility model belongs to communications optical cable.

(2) background technology:

Have the central beam tube type optical cable now owing to wherein containing metal reinforcement, use easily generation to respond to and influence result of use even cause optical cable impaired, its use in these zones is restricted at many thunders and lightnings or the stronger zone of high-tension electricity induction.

(3) summary of the invention

The purpose of this utility model is will solve existing central beam tube type optical cable to be unsuitable for the problem used in many thunders and lightnings or the stronger zone of high-tension electricity induction, designs not the containing metal reinforcement and uses the central beam tube type optical cable of the non-metal reinforcement member of different structure to achieve the goal.

The nonmetal central beam pipe optical cable that the utility model provides comprises cable core (1) and wraps in the outer jacket (6) of cable core (1) outside, cable core (1) contains optical fiber (2) and sleeve pipe (4) thereof, and the non-metal reinforcement member (5) that coats sleeve pipe (4) is set between sleeve pipe (4) and outer jacket (6).

The another kind of nonmetal central beam pipe optical cable that the utility model provides comprises cable core (1) and wraps in the sheath (5) and the outer outer jacket (7) that coats of sheath (5) of cable core (1) outside, cable core (1) contains optical fiber (2) and sleeve pipe (4) thereof, and rope form non-metal reinforcement member (6) is set in the sheath (5).

Therefore the utility model had both guaranteed the working strength of optical cable owing to adopted the non-metal reinforcement member of different structure, can use at many thunders and lightnings or the stronger zone of high-tension electricity induction again, can not produce induction, communication quality is stablized also can not damaged optical cable.

(4) description of drawings:

Fig. 1 is the synoptic diagram that non-metal reinforcement member is coated on the outer central beam tube type optical cable of sleeve pipe, and 1 be cable core among the figure, and 2 be optical fiber, and 3 is the interior filling material of sleeve pipe, and 4 is sleeve pipe, and 5 is the non-metal reinforcement member that is coated on outside the sleeve pipe (4), and 6 is outer jacket.

Fig. 2 is the synoptic diagram that the rope form non-metal reinforcement member is arranged on the central beam tube type optical cable in the outer restrictive coating of sleeve pipe, 1 is cable core among the figure, 2 is optical fiber, 3 is the filling material in the sleeve pipe, 4 is sleeve pipe, 5 for being coated on the restrictive coating outside the sleeve pipe (4), and 6 for being arranged on the rope form non-metal reinforcement member in the restrictive coating (5), and 7 is outer jacket.

(5) embodiment

Non-metal reinforcement member of the present utility model can adopt glass fiber reinforced plastics, aramid fiber or engineering plastics to make.Further specify two kinds of embodiments of the present utility model below in conjunction with accompanying drawing.

First kind coats aramid fiber reinforcement (5) outside ferrule (4), wrap the high density polyethylene outer jacket (6) with low-smoke non-halogen flame-retardant performance again, and this optical cable fire resistance is also fine.

4 glass fiber reinforced plastics ropes or aramid fiber rod reinforcement (6) evenly is set, outer anti-ant outer jacket (7), fire-retardant preferably, the anti-ant performance that this optical cable has of coating again of sheath (5) in second kind of high density polyethylene restrictive coating outside ferrule (4).

Claims

1, a kind of central beam tube type optical cable comprises cable core and wraps in the outer outer jacket of cable core that cable core contains optical fiber and sleeve pipe thereof, it is characterized in that being provided with between sleeve pipe and outer jacket the non-metal reinforcement member that coats sleeve pipe.

2, a kind of central beam tube type optical cable comprises cable core and wraps in the outer sheath of cable core and the outer outer jacket that coats of sheath that cable core contains optical fiber and sleeve pipe thereof, it is characterized in that being provided with in the sheath rope form non-metal reinforcement member.