CN103529527A - Light all dielectric self-supporting optical fiber cable for access network - Google Patents

Light all dielectric self-supporting optical fiber cable for access network Download PDF

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Publication number
CN103529527A
CN103529527A CN201310508108.7A CN201310508108A CN103529527A CN 103529527 A CN103529527 A CN 103529527A CN 201310508108 A CN201310508108 A CN 201310508108A CN 103529527 A CN103529527 A CN 103529527A
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China
Prior art keywords
access network
glass
glass fiber
fiber tape
optical fiber
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CN201310508108.7A
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Chinese (zh)
Inventor
顾利国
吴金华
詹朗朗
薛梦驰
施李萍
尹纪成
钱建林
孙丽华
沈婷
居志纲
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Hengtong Optic Electric Co Ltd
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Jiangsu Hengtong Optic Electric Co Ltd
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Abstract

The invention discloses a light all dielectric self-supporting optical fiber cable for an access network, which comprises a loose tube positioned in the center, and a plurality of glass optical fibers positioned in the loose tube, wherein thixotropic waterproofing fiber paste is filled among the loose tube and the glass optical fibers; the external surface of the loose tube is longitudinally wrapped with a glass fiber tape; the glass fiber tape is glued with the loose tube by a hot bonding gluing layer; the external surface of the glass fiber tape is coated with a PE (Poly Ethylene) sheath layer; one side end and the other side end of the glass fiber tape are overlapped to form a lamination area; and the hot bonding gluing layer is filled between glass fiber tape areas positioned above and below the lamination area. The light all dielectric self-supporting optical fiber cable for the access network discards the traditional metal material, has a natural shielding property to thunder and lightning or strong current, has an obvious lightning protection effect, eliminates potential safety hazards in construction of the access network, and has a ratproof function.

Description

Light-duty all-dielectric self-supporting fiber optical cable for Access Network
Technical field
The present invention relates to a kind of Access Network optical fiber cable, relate in particular to light-duty all-dielectric self-supporting fiber optical cable for a kind of Access Network.
Background technology
Along with the development of network technology, in communication network access aspect, carrying out light entering and copper back has become irreversible trend.Optical fiber communication has the advantages such as message capacity is large, quality is high, stable performance, anti-electromagnetic interference (EMI), strong security, is the long-range solution of development broadband access.
The circuit medium that optical fiber cable is built as optical-fiber network, it is the requisite ring of Optical Access Network (OAN) networking, it has realized linking between optical line terminal (OLT) and optical network unit (ONU), has completed the conversion from SNI (SNI) to relevant signaling protocol User Network Interface (UNI).As last kilometer of FTTx, Access Network is directly connected with terminal device by OLT, and its wiring is intensive and infobit capacity requirement is less, and that the optical fiber cable that therefore requirement is applied to access the network segment has is simple in structure, the feature of stable performance and easy construction.
Traditional Access Network generally adopts GYTY, GYTA (/S), several models of GYXTW with optical fiber cable, as shown in Figure 1, its structure is identical with common pipeline optical fiber cable, for guaranteeing to have good mechanical property, has adopted metal reinforcement 8 and metal armouring layer 9 during design.In actual use, these several optical fiber cables have exposed some problems: first, optical fiber cable itself is with metal material, and Access Network is directly connected with terminal with optical fiber cable, when running into thunder and lightning invasion, optical fiber cable very easily causes thunder and lightning indoor cause equipment loss or personnel's injury, to user, brings great potential safety hazard.Secondly, the wiring of the access network segment is intensive, therefore requires optical fiber cable quick construction and later maintenance easy, and traditional Access Network is with optical fiber cable outer diameter is thick, weight is larger, and the difficulty of network layout is relatively large.
Summary of the invention
The invention provides light-duty all-dielectric self-supporting fiber optical cable for a kind of Access Network, this Access Network has been abandoned traditional metal material with light-duty all-dielectric self-supporting fiber optical cable, make it to thunder and lightning or forceful electric power, there is natural screening, there is obvious lightning protection effect, eliminate the potential safety hazard existing in access network construction, and there is anti-rat.
For achieving the above object, the technical solution used in the present invention is: light-duty all-dielectric self-supporting fiber optical cable for a kind of Access Network, comprise the loose sleeve pipe that is positioned at center and some glass optical fibers that are positioned at loose sleeve pipe, between described loose sleeve pipe and glass optical fiber, be filled with the thixotropy fine cream that blocks water, one glass fiber tape is indulged and is wrapped in described loose bushing outer surface, bonding by hot sticky solidity bonding coat between this glass fiber tape and loose sleeve pipe, the outside surface of described glass fiber tape is coated with a PE restrictive coating; Thereby the overlapping stack region that forms of a side of described glass fiber tape and its another side is filled with described hot sticky solidity bonding coat between the glass fibre region of described stack region upper and lower.
In technique scheme, further improve technical scheme as follows:
In such scheme, described glass optical fiber is single-mode fiber or multimode optical fiber.
Because technique scheme is used, the present invention compared with prior art has following advantages:
Light-duty all-dielectric self-supporting fiber optical cable for Access Network of the present invention, one glass fiber tape is indulged and is wrapped in described loose bushing outer surface, bonding by hot sticky solidity bonding coat between this glass fiber tape and loose sleeve pipe, the outside surface of described glass fiber tape is coated with a PE restrictive coating; Thereby the overlapping stack region that forms of a side of described glass fiber tape and its another side, between the glass fibre region of described stack region upper and lower, be filled with described hot sticky solidity bonding coat, make its global sections not containing any metal ingredient, thunder and lightning is had to natural screening, there is high safety in utilization, and external diameter is little, lightweight, intensity is high, and lateral pressure resistant performance is good; Secondly, the singularity of glass fiber material, glass fibre yarn or glass fibre belt material itself contain tiny glass fiber granules, when mouse is nibbled, easily damage are caused in mouse oral cavity, allow mouse form fear memory, thereby reach biological protection against rodents effect; The 2nd, hot sticky solid material makes glass fiber tape form the fine and close armor of one deck outward at loose sleeve pipe, and it has higher shore hardness, allows the tooth of mouse be difficult to penetrate armor, and then reaches physics protection against rodents effect.
Accompanying drawing explanation
Accompanying drawing 1 is existing optical cable used for access network GYTA structural representation;
Accompanying drawing 2 is existing optical cable used for access network GYTA(/S) structural drawing;
Accompanying drawing 3 is light-duty all-dielectric self-supporting fiber cable configuration schematic diagram for Access Network of the present invention.
In above accompanying drawing: 1, loose sleeve pipe; 2, glass optical fiber; 3, the thixotropy fine cream that blocks water; 4, glass fiber tape; 5, hot sticky solidity bonding coat; 6, PE restrictive coating; 7, stack region; 8, metal reinforcement; 9, metal armouring layer.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: light-duty all-dielectric self-supporting fiber optical cable for a kind of Access Network, comprise the loose sleeve pipe 1 that is positioned at center and the some glass optical fibers 2 that are positioned at loose sleeve pipe 1, between described loose sleeve pipe 1 and glass optical fiber 2, be filled with the thixotropy fine cream 3 that blocks water, one glass fiber tape 4 is indulged and is wrapped in described loose sleeve pipe 1 outside surface, bonding by hot sticky solidity bonding coat 5 between this glass fiber tape 4 and loose sleeve pipe 1, the outside surface of described glass fiber tape 4 is coated with a PE restrictive coating 6; Thereby the overlapping stack region 7 that forms of a side of described glass fiber tape 4 and its another side is filled with described hot sticky solidity bonding coat 5 between the glass fibre region of described stack region 7 upper and lowers.
Above-mentioned glass optical fiber 2 is single-mode fiber or multimode optical fiber.
The present invention adopts central beam tube type structural design, not only guaranteed that optical cable has good mechanical environment performance, also solved the defect of optical cable guiding thunder and lightning and external diameter is thick, weight large, the inconvenient problem of constructing, for access network construction provides a kind of brand-new optical cable, it is as follows that it designs and develops process:
In structured design process, we have considered emphatically the feature of Access Network wiring, i.e. following 3 points:
A, different from backbone network, the ONU layout of Access Network end is comparatively disperseed, and geographical environment may be different, therefore requires wiring to have dirigibility, can adapt to multiple applied environment;
B, Access Network optical cable are to be all generally introduced into be indoorly connected with equipment, therefore security must strictly be considered the potential safety hazard existing in access network construction process before stopping.
C, access network segment port are more, and the required investment of networking is huge, so operator extremely pays close attention to cost factor in networking process, if network safe, that stablized of minimum cost construction is how the direction that we must consider.
The relatively traditional optical cable used for access network of the present invention, external diameter is little, lightweight, intensity is high, and lateral pressure resistant performance is good, and following table is optical cable canonical parameter table:
Table 1 GYFXTF optical cable canonical parameter table
Figure 278500DEST_PATH_IMAGE002
When sheath operation of the present invention is produced, by actinobacillus device, hot bonding-type glass fiber tape (or yarn) is wrapped in to sleeve pipe periphery closely, through high temperature melt and sheath, be bonded in one again, under sheath, can form the glass fibre belt armor of one deck densification, this armor both can guarantee that optical cable had higher tension effect, made it possess good protection against rodents effect simultaneously.
Referring to Fig. 3, Fig. 3 is light-duty all-dielectric self-supporting fiber optical cable process chart for Access Network, comprising:
A. optical fiber is put in storage: the optical fiber to warehouse-in screens, and the geometrical property of measuring fiber and optical characteristics, select the optical fiber that performance is qualified;
B. optical fiber coloring: optical fiber is coated to different colors, can select whole chromatogram or the chromatogram of piloting, require painted rear optical fibre high temp colour-fast, guarantee to be easy to when the later stage continues identification;
C. cover is moulded; Optical fiber after painted is positioned over and is filled with thixotropy and blocks water in the high-modulus sleeve pipe of fine cream, and by controlling retractable cable speed and tank temperature, make sleeve pipe inner fiber there is stable remaining long control and transport property;
D. sheath: at sleeve pipe vertical bag layer of glass band (or yarn) outward, then the outer protective polyethylene cover of extrusion molding one deck high-modulus around;
E. detect outbound: arrange every batch of finished cable to do full performance test, guarantee qualified rear encapsulation outbound.
While adopting above-mentioned Access Network with light-duty all-dielectric self-supporting fiber optical cable, one glass fiber tape is indulged and is wrapped in described loose bushing outer surface, bonding by hot sticky solidity bonding coat between this glass fiber tape and loose sleeve pipe, the outside surface of described glass fiber tape is coated with a PE restrictive coating; Thereby the overlapping stack region that forms of a side of described glass fiber tape and its another side, between the glass fibre region of described stack region upper and lower, be filled with described hot sticky solidity bonding coat, make its global sections not containing any metal ingredient, thunder and lightning is had to natural screening, there is high safety in utilization, and external diameter is little, lightweight, intensity is high, and lateral pressure resistant performance is good; Secondly, the singularity of glass fiber material, glass fibre yarn or glass fibre belt material itself contain tiny glass fiber granules, when mouse is nibbled, easily damage are caused in mouse oral cavity, allow mouse form fear memory, thereby reach biological protection against rodents effect; The 2nd, hot sticky solid material makes glass fiber tape form the fine and close armor of one deck outward at loose sleeve pipe, and it has higher shore hardness, allows the tooth of mouse be difficult to penetrate armor, and then reaches physics protection against rodents effect.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.

Claims (2)

1. light-duty all-dielectric self-supporting fiber optical cable for an Access Network, it is characterized in that: comprise the loose sleeve pipe (1) that is positioned at center and the some glass optical fibers (2) that are positioned at loose sleeve pipe (1), between described loose sleeve pipe (1) and glass optical fiber (2), be filled with the thixotropy fine cream (3) that blocks water, vertical described loose sleeve pipe (1) outside surface that is wrapped in of one glass fiber tape (4), bonding by hot sticky solidity bonding coat (5) between this glass fiber tape (4) and loose sleeve pipe (1), the outside surface of described glass fiber tape (4) is coated with a PE restrictive coating (6); Described glass fiber tape (4) thus a side and the overlapping stack region (7) that forms of its another side, be positioned between the glass fibre region of described stack region (7) upper and lower and be filled with described hot sticky solidity bonding coat (5).
2. light-duty all-dielectric self-supporting fiber optical cable for Access Network according to claim 1, is characterized in that: described glass optical fiber (2) is single-mode fiber or multimode optical fiber.
CN201310508108.7A 2013-10-24 2013-10-24 Light all dielectric self-supporting optical fiber cable for access network Pending CN103529527A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090297104A1 (en) * 2008-05-28 2009-12-03 Kachmar Wayne M Fiber optic cable
CN201548732U (en) * 2009-12-03 2010-08-11 江苏永鼎股份有限公司 Small-sized nonmetal optical fiber ribbon optical cable used for FTTX
WO2012112532A2 (en) * 2011-02-14 2012-08-23 Adc Telecommunications, Inc. Fiber optic cable with electrical conductors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090297104A1 (en) * 2008-05-28 2009-12-03 Kachmar Wayne M Fiber optic cable
CN201548732U (en) * 2009-12-03 2010-08-11 江苏永鼎股份有限公司 Small-sized nonmetal optical fiber ribbon optical cable used for FTTX
WO2012112532A2 (en) * 2011-02-14 2012-08-23 Adc Telecommunications, Inc. Fiber optic cable with electrical conductors

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