KR101461607B1 - Fiber Optic Cable For Recognizing Reversal Section And Construct Method - Google Patents

Abstract

The present invention relates to an optical fiber cable capable of recognizing a reversal section and a construction method according to the same. According to the present invention, a specific loose tube, which a user wants to use, can be separated from a reversal section without interference by marking a stripped zone on an outer cover corresponding to a reversal section between S-direction group and Z-direction group of unit comprising an optical fiber cable, applying an outer tape which makes a loose tube identified, and stripping the outer cover from the reversal section. Also, splicing of distribution and insertion cables can be possible at a point which requires a branching after fabrication of optical fiber cable or deployment of pipe by making a space enough for connection work by enabling separate extraction of specific optical fiber of the loose tube. To work within a narrow space cabinet or an optical fiber splice closure, the loose tube is formed with a flexible material, and an internal waterproof material is formed with waterproof thread to make extraction a specific optical fiber core which the user wants to use among the optical fiber cores in the loose tube possible. By applying an auxiliary strength member together with an internal strength member, the fixability of cable with various structures can be provided.

Description

TECHNICAL FIELD [0001] The present invention relates to a fiber optic cable,

[0001] The present invention relates to an optical fiber cable capable of recognizing an intersection and a construction method thereof, and more particularly, to an optical fiber cable having an S By displaying an arbitrary discrimination symbol so as to recognize the intersection of the direction set and the Z direction set, the unit to be used can be separated without interfering with other units by confirming the intersection of the S direction set and the Z direction set when the sheath is peeled, The structure of the fiber optic fiber is used to extract the specific optical fiber to be used among the plurality of optical fibers included in the unit, and a flexible material unit is used so that it can be mounted within a narrow space (terminal box or connection box) So as to prevent damage to the optical fiber caused by the unit in the structure It will soundness.

In general, an optical fiber cable is a cable made of an optical fiber for quickly transmitting a large amount of information. This is a cable made of a bundle of a plurality of fiber strands made of quartz (glass) or the like, .

Such an optical cable will be described with reference to the accompanying drawings.

FIGS. 1A and 1B are cross-sectional views of conventional optical cables. FIG. 2 is a view showing a state in which a unit constituting a conventional optical cable is wound. FIG. FIG.

As shown in FIG. 1A, a conventional optical cable includes a central tensile line 100 made of an F-type fiber; (Loose Tube) 200 having a plurality of optical fibers 210 therein; An external tape (300) for binding the plurality of units (200); And an envelope 400 for overall wrapping of the cable.

As shown in FIG. 1A, the jelly compound 230 is filled in the unit 200 and the jelly compound 230 is filled in the unit 200 as shown in FIG. 1B, And a rib cord 301 is provided between the outer jacket tape 300 and the outer jacket 400 for convenience of peeling off the outer jacket.

2, the plurality of units 200 are repeatedly wound around the central tensile line 100 while maintaining a constant spacing in the S direction and the Z direction. The unit 200 uses synthetic resin PBT or PP made of hard material and has a core 6, a core 12, or a core 24 of an optical fiber 210. The jelly-type jelly compound 230 is filled with water for waterproofing .

Such a conventional optical cable is formed at the beginning or end of the cable at the time of connection for cable connection and distribution, but after laying the optical cable in the processing or pipeline, In the operation for connecting the optical fibers, it is necessary to peel off the shell at a position corresponding to the unit area intersecting the set of the S direction and the Z direction, so that it is easy to smoothly untie the unit, extract the unit, and extract and connect the optical fiber inside the unit. 3, the unit is not loosened around the center tensile line, so that not only the intermediate connecting operation becomes impossible, but also the unit is hard It is made of synthetic resin (PBT, PP) made of material, There is a jelly compound filled with water to the inside, they were caused various problems, such as separation and expulsion of the fiber is not easy.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a conventional problem, and it is an object of the present invention to provide a method of manufacturing an optical cable, in which an outer circumferential surface of a shell corresponding to a reversal section The present invention has been made in view of the above problems, and it is an object of the present invention to provide an intersection recognizing optical cable and a construction method therefor.

It is another object of the present invention to provide a method of manufacturing a fiber optic cable by using an external tape capable of identifying a unit so as to recognize a point where a set crosses during the manufacturing process of the optical cable, To provide the identities that can be found.

Another object of the present invention is to make the unit made of a soft material so that the unit can be easily cut in a narrow space, and a hair dressing operation can be performed.

It is another object of the present invention to provide a waterproofing function for waterproofing the inside of a unit by forming a waterproofing yarn inserted into the unit into a hygroscopic waterproofing yarn, .

In order to attain the above object, the present invention provides a method of manufacturing a semiconductor device, comprising: a center tension line made of an F- A plurality of units provided with a maximum of 24 core optical fibers and an inner waterproof yarn therein, and repeatedly wound in a set of S direction and a set of Z direction; An outer tape for binding the unit; A secondary tensile line of aramid yarn; Wherein the unit wound in the S direction and the Z direction is capable of accommodating a maximum of twenty four cores and displays a peeling zone on an outer circumferential surface of the outer shell corresponding to an intersection formed at a point where the direction changes, Thereby forming an identifiable outer casing tape at the intersecting portion so as to be able to identify the crossing region during the extrusion process of the outer casing.

Further, the present invention relates to a core tension line made of an F-alpha steel; A plurality of units provided with a maximum of 24 core optical fibers and an inner waterproof yarn therein, and repeatedly wound in a set of S direction and a set of Z direction; An outer tape for binding the unit; A secondary tensile line of aramid yarn; A set of S-direction and a set of Z-direction intersection of the unit through the external tape that identifies the unit are peeled from the left and right peaks based on the peeling zone indicated at intervals of 500 to 3000 mm on the outer surface of the optical cable having the shell for overall wrapping of the cable Identifying the site and laying it on the device (terminal box or connection housing); Releasing the exposed units in a natural unwinding direction, separating the unit to be used from the units and mounting the unit on a tray, removing the casing of the unit using a tube removing machine, and storing the optical fiber in a tray; A step of separating and extracting an optical fiber to be used from among the optical fibers from which the shell of the unit is removed, cutting one end thereof, securing a maximum allowable length of the optical fiber, and connecting the optical fiber for distribution and the optical cable for a subscriber.

According to the present invention, the peeling zone is displayed at a constant interval (500 to 3000 mm) on the outer circumferential surface of the shell corresponding to the intersection of the S direction set and the Z direction set of the units constituting the optical cable, It is possible to separate the unit from the unit where the S-direction set and the Z-direction set intersect (Reversal Section), so that the unit to be used after the shell sheathing can be separated without interfering with other units, It is not only easy to disassemble but also protects the optical fiber inside the unit when working in a narrow space of the equipment (terminal box or connection box). It is made of a hygroscopic waterproofing yarn inserted into the tube for waterproofing the unit. It is easy to peel off the tube, and the optical fiber to be used does not affect other optical fibers, It is possible to secure the maximum shear for connection with other cables in the narrow spaces (the terminal box or the connection case) by separating and extracting the cables, thereby making it possible to work with the wiring cable or the lead-in cable to be connected.

In addition, the method of constructing an optical cable according to the present invention is a structure capable of safely extracting an optical fiber to be used in an optical cable that has already been installed in a processing or pipeline, and is also provided with a connectable permitting yarn so that the extracted optical fiber can be connected to another optical cable, And for the compatibility of the fixture with the equipment (terminal box or connection box) to be connected, the effect of maximizing the efficiency of the network operation by applying the auxiliary tensile wire made of aramid yarn in addition to the center tensile strength / RTI >

FIG. 1A and FIG. 1B are cross-sectional views showing a conventional optical cable.
Fig. 2 is a view showing a state where a unit constituting a conventional optical cable is wound. Fig.
Fig. 3 is a configuration diagram showing a state in which a shell of a conventional optical cable is removed. Fig.
4 is a view showing a cross section of an intersection recognizing optical cable according to the present invention.
FIG. 5 is a view showing a state where a unit constituting an intersection recognizing optical cable according to the present invention is wound. FIG.
FIG. 6 is a view showing a state in which an outer shell of a cross-point recognizable optical cable according to the present invention is released. FIG. 6 is a state in which a shell corresponding to a point where a set of S direction and a set of Z direction are reversed.
7 is a process configuration diagram showing a method of constructing an intersection recognizing optical cable according to the present invention.
FIG. 8 is a view showing a construction method of an intersection recognizing optical cable according to the present invention, wherein a is a state in which an outer shell of an optical cable is uncovered and laid inside a structure (terminal box or connection housing) C is a state in which one optical fiber of the molten tube is separated and removed and one end of the optical fiber is cut off and d is a state in which the cut optical fiber is prepared for connection with another optical cable Respectively.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a cross-sectional view of a cross-point recognizable optical cable according to the present invention. FIG. 5 is a view showing a unit in which a cross-point recognizable optical cable according to the present invention is wound, FIG. 6 is a view showing a state in which an outer shell of a cross-point recognizable optical cable according to the present invention is peeled off. FIG. 6 is a state in which a shell corresponding to a point where a set of S direction and a set of Z direction are reversed.

As shown in FIGS. 4 to 6, the optical cable according to the present invention includes a center tensile line 10 made of an F-type fiber; A plurality of units (Loose Tube) 20 having a plurality of optical fibers 24 therein; An outer tape (30) for binding the unit (20); An auxiliary tension line 40 made of aramid yarn; And a sheath 50 for wrapping the cable as a whole.

An outer room rope 55 is provided between the units 20 for waterproofing the inside and a rib cord 31 is provided between the outer cover tape 30 and the outer cover 50 for convenience of peeling.

The unit 20 is made of a flexible material, and an optical fiber 24 having a maximum of 24 cores is located therein, and an internal airflow 26 is inserted for waterproofing.

At this time, the unit 20 is an ethylene-based soft material and is made of PE or LSZH (Low Smoke Zero Halogen) and is easily cut using a separate tool, and the incision can be continuously made over 1000 mm.

The inner endoscope 26 is made of a hygroscopic waterproof yarn so that the optical fiber 24 to be used among the plurality of optical fibers 24 located in the unit 20 can be separated and removed without affecting other optical fibers Connection work is easy.

The outer layer tape 30 may be made of a material capable of identifying the intersection 20a of the unit 20 so that the outer zone 60 can identify the intersection 20a during the extrusion process of the outer skin 50 In addition, it provides discrimination to find the intersection point of the clusters after peeling off the outer skin during the peeling connection operation of the outer skin in the field.

Meanwhile, as shown in FIG. 6, the loose tube 20 is a structure that is repeatedly gathered while being kept at a constant interval in a set of S direction and a set of Z direction, and binding is maintained by the external tape 30.

At this time, the unit 20 has a crossing portion 20a formed at a point where the direction is changed while being repeatedly wound in the S direction and the Z direction, and a unit wound in a set of S direction and a set of Z direction 20) are not twisted together and are easily released in the forward direction.

The outer envelope 50 is a covering material that encloses the center tensile line 10, the unit 20, the outer envelope tape 30 and the auxiliary tensile line 40. The outer envelope 50 is formed on the outer circumferential surface of the envelope 20 at the intersection 20a of the unit 20 The corresponding peeling zone 60 is displayed.

The peeling zone 60 is displayed on the outer circumferential surface of the sheath 50 so that the intersecting part of the inner S-direction set and the Z-direction set can be distinguished. The interval between the peeling zones 60 is maintained at 500 to 3000 mm, 20a), or a band-shaped sticker made of various colors for easy identification by an operator.

A construction method of the cross-point recognizable optical cable having the above structure will be described.

FIG. 7 is a process diagram showing a method of constructing an intersection recognizing optical cable according to the present invention.
As shown in the figure, the method for constructing an intersection recognizing optical cable according to the present invention is a method for constructing an intersection recognizing optical cable in which an inner unit is peeled off at a predetermined distance from a peeling zone marked at intervals of 500 to 3000 mm, Identifying the intersection of the set and the Z direction set to remove the outer tape and laying it on the device (terminal box or connection case); Releasing the exposed units in a natural unwinding direction, separating the unit to be used, mounting the unit on a tray, dissecting the casing of the unit by using a tube evacuator, and storing the optical fiber in a tray; Disconnecting the optical fiber to be used from among the optical fibers from which the shell of the unit has been removed, disconnecting one end of the optical fiber, securing a maximum allowable length, and connecting the optical fiber for distribution and the optical cable for the subscriber.

A construction method of an intersection recognizing optical cable installed by such a process will be described.

First, in the step of peeling the peeling zone and fixing it in the interior of the instrument (terminal box or connection housing), as shown in FIG. 8A, the peeling zone 60 is peeled from the peeling zone 60 at intervals of 500 to 3000 mm, And the intersection 20a of the set in the unit S direction and the set in the Z direction is confirmed through the external tape 30 binding the unit 20 and the external tape is peeled off and then removed from the apparatus body (terminal box or connection case) 1).

At this time, the central tensile wire 10 constituting the optical cable is coupled to a bracket (not shown) provided inside a device (terminal box or connection housing) 1, but the auxiliary tensile wire 40 made of aramid yarn is bound, As shown in Fig.

Next, as shown in FIG. 8B, the crossing portion 20a of the unit 20 is unfolded in the forward direction with respect to the center tensile line 10 in the step of removing the outer shell of the unit and storing the optical fiber in the tray. The unit 22 to be used is selected and stored in the tray 2 and then the casing of the unit 22 is cut using the tube remover so that the unit 22 can be easily cut off by the nature of the material, The optical fiber 24 and the waterproof yarn 26 are easily separated from each other due to the characteristics of the material.

In this state, as shown in FIG. 8C, a unit 22 for selecting one of the plurality of optical fibers 24 in the unit 22 to be used in the tray 2, And then cut off one end of the separated and outgoing optical fiber 24.

Next, as shown in FIG. 8D, the optical fiber 24, which is separated and ejected and cut at one end, is connected to another optical cable in the tray 2.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. .

10: center tensile line 20: unit
20a: Crossing point 22: Unit to be used
24: Optical fiber 26:
30: external tape 40: auxiliary tension line
50: envelope 60:

Claims (8)

A center tensile line 10 made of an F-alpha; A plurality of units 20 provided with a maximum 24-core optical fiber 24 and an internal radiating yarn 26 inside and being repeatedly wound in a set of S direction and a set of Z direction; An outer tape (30) for binding the unit (20); An auxiliary tension line 40 made of aramid yarn; In an optical cable structure comprising an envelope (50) for entirely wrapping a cable,
The unit 20 wound in the S direction and the Z direction is capable of accommodating a maximum of twenty four cores and marks the peeling zone 60 on the outer circumferential surface of the shell 50 corresponding to the intersection 20a formed at the point where the direction changes,
Wherein an identifiable external tape (30) of the intersection (20a) is formed so that the peeling zone (60) can identify the intersection (20a) during the extrusion process of the envelope (50). The apparatus of claim 1, wherein the unit (20)
An intersection-recognizable optical cable characterized by being an ethylene-based flexible material and being made of PE or LSZH (Low Smoke Zero Halogen) and having a cutting range of not less than 1000 mm. The intersection recognizing optical cable as claimed in claim 1, wherein the inner waterproof yarn (26) is made of a hygroscopic waterproof yarn so that the optical fiber (24) can be easily separated and removed from the unit (20). The method of claim 1, wherein the stripping zone (60)
Characterized in that it is a symbol, a character, a number, or a band-shaped sticker of various colors. The method according to claim 1,
In the connection enclosure or the terminal box,
Wherein the central tensile line or the auxiliary tensile line is applied to the connection housing or terminal box of another structure to improve the compatibility of the connection. A method of constructing an optical cable according to claim 1,
The outer shell is peeled to the left and right at a distance of 500 to 3000 mm from the outer shell, and the intersection of the S-direction and the Z-direction of the unit is identified through the external tape that identifies the unit. A housing);
Releasing the exposed units in a natural unwinding direction, separating the unit to be used from the units and mounting the unit on a tray, removing the casing of the unit using a tube removing machine, and storing the optical fiber in a tray;
A step of separating and extracting an optical fiber to be used from the optical fiber from which the shell of the unit is removed and cutting one end and securing a maximum allowable length to connect the fiber optic cable for distribution and the fiber optic cable for subscriber, . The method according to claim 6,
Wherein the unit is displayed on an outer circumferential surface of an outer shell corresponding to an intersection formed at a point where the unit is wound in the S direction and the Z direction and the direction changes. The method according to claim 6,
In the connection enclosure or the terminal box,
Wherein a central tensile line or an auxiliary tensile line is applied to the connector housing or terminal box of another structure to improve the compatibility of the connector.

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