WO2022116840A1 - 一种8字形防生物啮咬光缆 - Google Patents
一种8字形防生物啮咬光缆 Download PDFInfo
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- WO2022116840A1 WO2022116840A1 PCT/CN2021/131354 CN2021131354W WO2022116840A1 WO 2022116840 A1 WO2022116840 A1 WO 2022116840A1 CN 2021131354 W CN2021131354 W CN 2021131354W WO 2022116840 A1 WO2022116840 A1 WO 2022116840A1
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- cable core
- frp
- water blocking
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- water
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- 230000003287 optical effect Effects 0.000 title claims abstract description 61
- 239000013307 optical fiber Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000000903 blocking effect Effects 0.000 claims abstract description 53
- 239000000725 suspension Substances 0.000 claims abstract description 30
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 16
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 16
- 239000004698 Polyethylene Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 22
- -1 polyethylene Polymers 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 239000002674 ointment Substances 0.000 description 5
- 241000283984 Rodentia Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 241000555745 Sciuridae Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 102100020786 Adenylosuccinate synthetase isozyme 2 Human genes 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 230000035929 gnawing Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Definitions
- the invention belongs to the technical field of communication optical cables, in particular to a figure-eight anti-biological bite optical cable.
- optical fiber communication is widely used as the fastest and best transmission quality communication method.
- the optical cable In mountain forests, rural areas and other areas, the optical cable is often pierced by birds, bitten by mice, squirrels, etc., resulting in interruption of communication, especially in mountain forest areas, where squirrels are attracted by the smell of optical cable sheath and internal ointment . Once the optical cable is damaged, the loss of communication interruption and maintenance is immeasurable.
- the optical cable can be divided into three types: overhead, direct buried and pipeline.
- the overhead optical cable according to the bearing method, it can be divided into self-supporting overhead optical cable and non-self-supporting overhead optical cable.
- the non-self-supporting aerial optical cable needs to be pre-laid with steel strands, and the optical cable is fixed on the steel strand by the matching pendant.
- the reinforcing member of the self-supporting aerial optical cable itself can bear its own weight and external load, and can be directly used for overhead laying.
- the currently used self-supporting aerial optical cables can be divided into two categories: ADSS self-supporting aerial optical cables and figure-8 self-supporting aerial optical cables.
- ADSS self-supporting aerial optical cables are provided with tensile force by aramid fiber and have an all-dielectric structure.
- the high price of aramid fiber leads to the high overall cost of optical fiber cables. It is often used for high-altitude laying in power systems, and the probability of being damaged by organisms is small.
- Figure 8 self-supporting overhead optical cable is often used for overhead laying in mountain forests, rural areas and suburbs. This kind of optical cable has excellent performance and convenient construction, and is favored by customers. However, it is not uncommon for it to be damaged by organisms.
- anti-biological optical cables are generally armored with stainless steel tapes.
- Stainless steel tapes can not only prevent rodents from biting through the optical cables, but also prevent damage caused by rust when the outer skin is damaged, which can well solve the problem of biological bites, but Stainless steel tape as armor increases the risk of lightning strikes, and lightning protection is an important consideration for overhead optical cables.
- the traditional optical cable is filled with ointment in the casing and outside the cable core to block water.
- the advantage is that it can well prevent water and moisture from entering the optical cable.
- the disadvantage is that the filling of ointment not only brings inconvenience to manufacturing, but also It also greatly increases the weight of the optical cable. Once the optical cable is broken, the smell of the ointment will attract squirrels and other rodents to bite it, thereby aggravating the damage of the optical cable.
- the purpose of the present invention is to provide a figure-eight anti-biological bite optical cable, which is a fully dry type non-metallic structure figure-eight anti-biological bite optical cable.
- a figure-8 anti-biological bite optical cable the cross-section of the figure-8 anti-biological bite optical cable is a figure-8, and includes a main cable core and a suspension cable core, and the main cable core and the suspension cable core are placed side by side and
- the main cable core is a layer-stranded structure without a central strength member or a central tube structure.
- the main cable core includes an optical fiber core, and several optical fiber cores are twisted into a cable with each other.
- the outer sheath is covered with FRP armor
- the FRP armor is covered with an outer sheath
- the inner sheath is selectively set between the water blocking tape and the FRP armor
- the main cable core is a layer without a central reinforcement
- an inner sheath is set between the water blocking tape and the FRP armoring layer.
- the main cable core is a central tube structure, there is no inner sheathing between the water blocking tape and the FRP armoring layer.
- the main cable core is a layer-stranded structure without a central strength member
- the main cable core includes an optical fiber, a water-blocking yarn, a fully dry loose tube, a water-blocking tape, an inner sheath, an FRP armor layer and Outer sheath, several optical fibers and water-blocking yarns are loosely wrapped in the loose tube to form an optical fiber core, at least two optical fiber cores and filling ropes are twisted together around the water-blocking yarns to form a cable, filled with several water-blocking yarns, not used
- the central strength member after the optical fiber core is cabled, is covered with a water blocking tape, and the water blocking tape is covered with an inner sheath, and the inner sheath is covered with a FRP armor layer, and the FRP armor layer is covered with an outer sheath.
- three optical fiber cores and filling ropes are twisted together around the water-blocking yarn to form a cable, and several water-blocking yarns are filled without using a central reinforcement.
- the main cable core is a central tube structure with a single optical fiber core
- the main cable core includes optical fibers, water blocking yarns, all-dry loose tubes, water blocking tapes, FRP armoring layers and outer layers. Sheath, a number of optical fibers and water blocking yarns are loosely wrapped in the loose tube to form an optical fiber core, the optical fiber core is wrapped with a water blocking tape, the water blocking tape is covered with a FRP armor layer, and the FRP armor layer is covered with an outer sheath. set.
- the inner sheath and the outer sheath are respectively made of polyethylene material.
- the FRP armor layer is made of circular or oblate rod-shaped fiber-reinforced plastic FRP material.
- a suspension cable core is arranged above the main cable core, and the suspension cable core includes a suspension wire and a PE outer sheath wrapped on the outside of the suspension wire. All-in-one structure.
- suspension wire is made of fiber reinforced plastic FRP.
- the figure-8 anti-biological bite optical cable of the present application has no grease in its entire cross-section.
- the fully dry loose tube is filled with a number of water blocking yarn dry water blocking materials, and then the water blocking material is outsourced.
- the all-dry structure reduces the weight of the optical cable. Taking 288 cores as an example, the all-dry optical cable is about 11% lighter than the ointment-filled structure, which greatly reduces the tensile force that the cable bears during overhead laying;
- the cable core of layer-stranded structure without central reinforcement or central tube structure is adopted.
- 0-3 optical fiber cores and filling ropes can be used to twist each other around the water-blocking yarn to form a cable, and no central reinforcement is used.
- Reduce the weight of the cable adopt the layer-strand structure without a central reinforcement and wrap it with a water-blocking tape for inner sheath protection, and wrap the central tube structure with a water-blocking tape without inner protection, and can directly carry out FRP armoring, with simple process and high performance excellent;
- Embodiment 1 is a schematic structural diagram of Embodiment 1 of the present invention.
- Embodiment 2 is a schematic structural diagram of Embodiment 2 of the present invention.
- Embodiment 3 is a schematic structural diagram of Embodiment 3 of the present invention.
- Embodiment 4 is a schematic structural diagram of Embodiment 4 of the present invention.
- Fig. 5 is the preparation process flow chart of embodiment 1 and embodiment 2 of the present invention.
- Fig. 6 is the preparation process flow chart of embodiment 3 and embodiment 4 of the present invention.
- 1-optical fiber 2-water blocking yarn; 3-loose tube; 4-water blocking tape; 5-inner sheath; 6-FRP armor layer; 7-outer sheath; 8-hanging wire; 9-PE Outer Sheath; 10-Sling.
- a figure-8 anti-biological gnawing optical cable considering the process control, laying efficiency, construction cost and other aspects, adopts self-supporting overhead laying as the theoretical design basis. On the basis of optical cables, innovative improvements are made.
- the figure-8 anti-biological bite optical cable mainly includes the main cable core and the hanging cable core.
- 0-3 optical fiber cores and filling ropes can be used to twist each other around the water blocking yarn 2 to form a cable, without using a central reinforcement, the layered structure is wrapped with a water blocking tape 4 and then sheathed once to form an inner sheath 5, the central tube type
- the structure is directly protected by FRP armor after being wrapped with water blocking tape 4, without the need for inner sheath protection, and the round or flat rod-shaped fiber reinforced plastic FRP is used for armoring, which can prevent biological bites and improve the tensile and compression of optical cables. The effect of flat and other mechanical properties.
- a figure-8 anti-biological bite optical cable includes a main cable core and a hanging cable core, the main cable core is a layer-stranded structure without a central strength member, and the main cable core includes optical fibers 1.
- Water blocking yarn 2 fully dry loose tube 3, water blocking tape 4 wrapped on the outside of fully dry loose tube 3, inner sheath 5, FRP armor layer 6 and outer sheath 7, several
- the optical fiber 1 and the water-blocking yarn 2 are loosely wrapped in the loose tube 3 through the inner layer one-time plastic wrapping process to form an optical fiber core. 2)
- the fully dry structure helps to reduce the weight of the cable.
- 3 fiber cores and filling ropes can be used to twist each other around the water-blocking yarn 2 to form a cable, and fill several water-blocking yarns 2 without using a central reinforcement.
- the water-blocking tape 4 is wrapped outside, and the water-blocking tape 4 is sheathed with polyethylene material once, and then the inner sheath 5 is formed.
- the circular rod-shaped fiber reinforced plastic FRP material is armored, and then the armor is formed by the secondary sheath of polyethylene material to form the outer sheath 7, and finally the main cable core is formed, and the suspension cable core is arranged above the main cable core.
- the suspension cable core includes a suspension wire 8 and a PE outer sheath 9 covering the outside of the suspension wire 8.
- the suspension wire 8 is made of fiber-reinforced plastic FRP
- the outer sheath 7 is connected to the PE outer sheath 9 through a sling 10.
- the sling 10 and the PE outer sheath 9 are connected to form a whole, and finally form an all-dielectric non-metallic non-center reinforcement layer twisted structure with a figure-eight cross section.
- the preparation process of the figure-8-shaped anti-biological bite optical cable of Example 1 is shown in Figure 5.
- the optical fiber 1 is put into storage, the optical fiber is colored, and then several colored optical fibers 1 and water-blocking yarns 2 are passed through the inner layer one-time plastic wrapping process. It is loosely wrapped in the loose tube 3 to form an optical fiber core, and then the three optical fiber cores and the filling rope are twisted together around the water-blocking yarn 2 to form a cable, without the use of a central reinforcement, after the cable is formed, the water-blocking tape 4 is covered to block water.
- the outer side of the belt 4 is sheathed with polyethylene material and then FRP armoring is carried out, and then it is formed by the secondary sheath of polyethylene material, and finally the performance test is carried out.
- a figure-8 anti-biological bite optical cable includes a main cable core and a hanging cable core, the main cable core is a layer-stranded structure without a central strength member, and the main cable core includes optical fibers 1.
- Water blocking yarn 2 fully dry loose tube 3, water blocking tape 4 wrapped on the outside of fully dry loose tube 3, inner sheath 5, FRP armor layer 6 and outer sheath 7, several
- the optical fiber 1 and the water-blocking yarn 2 are loosely wrapped in the loose tube 3 through the inner layer one-time plastic wrapping process to form an optical fiber core. 2)
- the fully dry structure helps to reduce the weight of the cable.
- 3 fiber cores and filling ropes can be used to twist each other around the water-blocking yarn 2 to form a cable, and fill several water-blocking yarns 2 without using a central reinforcement.
- the water blocking tape 4 is wrapped outside, and the water blocking tape 4 is sheathed with polyethylene material once, and then the inner sheath 5 is formed.
- the rod-shaped fiber reinforced plastic FRP material is armored, and after the armor is formed by the secondary sheath of polyethylene material, the outer sheath 7 is formed, and finally the main cable core is formed, and the hanging cable core is arranged above the main cable core.
- the suspension cable core includes a suspension wire 8 and a PE outer sheath 9 covering the outside of the suspension wire 8.
- the suspension wire 8 is made of fiber reinforced plastic FRP, and the outer sheath 7 is connected to the PE outer sheath 9 through a sling 10.
- the outer sheath 7 , the sling 10 and the PE outer sheath 9 are connected into a whole, and finally a full-dielectric non-metallic non-center reinforcement layer twisted structure with a figure-eight cross section is formed.
- the preparation process flow of the figure-8 anti-biological bite optical cable of Example 2 is shown in Figure 5.
- the optical fiber 1 is stored in the warehouse, the optical fiber is colored, and then the colored optical fibers 1 and the water-blocking yarn 2 are passed through the inner layer one-time plastic wrapping process. It is loosely wrapped in the loose tube 3 to form an optical fiber core, and then the three optical fiber cores and the filling rope are twisted together around the water-blocking yarn 2 to form a cable, without the use of a central reinforcement, after the cable is formed, the water-blocking tape 4 is covered to block water.
- the outer side of the belt 4 is sheathed with polyethylene material and then FRP armoring is carried out, and then it is formed by the secondary sheath of polyethylene material, and finally the performance test is carried out.
- a figure-8 anti-biological bite optical cable includes a main cable core and a hanging cable core, the main cable core is a central tubular structure, and the main cable core includes an optical fiber 1, a water blocking Yarn 2, fully dry loose tube 3, water blocking tape 4, FRP armor layer 6 and outer sheath 7 wrapped on the outside of fully dry loose tube 3, several optical fibers 1 and water blocking yarn 2 pass through the inner
- the layer-by-layer plastic wrapping process is loosely wrapped in the loose tube 3, the loose tube 3 is wrapped with the water blocking tape 4, and the water blocking tape 4 is protected by FRP armor to form the FRP armor layer 6, and the FRP armor layer 6 is used
- the flat circular rod-shaped fiber reinforced plastic FRP material is armored, and then the outer sheath 7 is formed by the polyethylene material sheath, and the suspension cable core is arranged above the main cable core.
- the PE outer sheath 9 is wrapped on the outside of the suspension wire 8.
- the suspension wire 8 is made of a fiber reinforced plastic FRP.
- the outer sheath 7 is connected to the PE outer sheath 9 through the sling 10.
- the sheaths 9 are connected into one body, and finally form an all-dielectric non-metallic central tube structure with a figure-eight cross section.
- the preparation process of the figure-8-shaped anti-biological bite optical cable of Example 3 is shown in Figure 6.
- the optical fiber 1 is stored in the warehouse, the optical fiber is colored, and then several colored optical fibers 1 and water-blocking yarns 2 are passed through the inner layer one-time plastic wrapping process. It is loosely wrapped in the loose tube 3 to form an optical fiber core, which is wrapped with a water blocking tape 4, which is FRP armored outside the water blocking tape 4, and then is formed by a secondary sheath of polyethylene material, and finally the performance test is carried out. Ex-factory, non-conforming products are scrapped or redone.
- a figure-8 anti-biological bite optical cable includes a main cable core and a hanging cable core, the main cable core is a central tubular structure, and the main cable core includes an optical fiber 1, a water blocking cable Yarn 2, fully dry loose tube 3, water blocking tape 4, FRP armor layer 6 and outer sheath 7 wrapped on the outside of fully dry loose tube 3, several optical fibers 1 and water blocking yarn 2 pass through the inner
- the layer-by-layer plastic wrapping process is loosely wrapped in the loose tube 3, the loose tube 3 is wrapped with the water blocking tape 4, and the water blocking tape 4 is protected by FRP armor to form the FRP armor layer 6, and the FRP armor layer 6 is used
- the circular rod-shaped fiber reinforced plastic FRP material is armored, and then the outer sheath 7 is formed by the polyethylene material sheath, and the suspension cable core is arranged above the main cable core.
- the PE outer sheath 9 covering the outside of the hanging wire 8, the hanging wire 8 is made of a fiber reinforced plastic FRP, the outer sheath 7 is connected with the PE outer sheath 9 through the sling 10, the outer sheath 7, the sling 10 and the PE outer sheath
- the sleeves 9 are connected to form a whole, and finally form an all-dielectric non-metallic central tube structure with a figure-eight cross section.
- the preparation process of the figure-8 anti-biological bite optical cable of Example 4 is shown in Figure 6.
- the optical fiber 1 is put into storage, the optical fiber is colored, and then several colored optical fibers 1 and water-blocking yarns 2 are passed through the inner layer one-time plastic wrapping process. It is loosely wrapped in the loose tube 3 to form an optical fiber core, which is wrapped with a water blocking tape 4, which is FRP armored outside the water blocking tape 4, and then is formed by a secondary sheath of polyethylene material, and finally the performance test is carried out. Ex-factory, non-conforming products are scrapped or redone.
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Abstract
一种8字形防生物啮咬光缆，截面呈8字形，包括主缆缆芯和吊线缆芯，主缆缆芯和吊线缆芯并列放置并通过吊带(10)连接成一体，主缆缆芯为无中心加强件式层绞结构或中心管式结构，主缆缆芯包括光纤芯，若干根光纤芯相互绞合成缆，外包阻水带(4)，阻水带(4)外包覆FRP铠装层(6)，FRP铠装层(6)外包覆外护套(7)，阻水带(4)与FRP铠装层(6)之间选择性设置内护套(5)。8字形防生物啮咬光缆，采用全干式阻水方式进行阻水，使用圆形或扁平形杆状纤维增强塑料FRP进行铠装，起到防生物啮咬、提高光缆拉伸、压扁等机械性能的作用，整体全介质非金属结构，无金属导体，防雷、防电，可应用于山林地区、电力场景的架空敷设，保障通信的稳定性。
Description
本发明属于通信光缆技术领域，具体涉及一种8字形防生物啮咬光缆。
随着信息需求的持续增长，光纤通信作为速度最快、传输质量最好的通信方式而被广泛使用。在山林、农村等地区经常会出现光缆被鸟类啄穿，被老鼠、松鼠等啮咬的情况，导致通信中断，特别是山林地区架空敷设，松鼠被光缆护套和内部油膏的气味所吸引。光缆一旦被破坏，通信中断和维护产生的损失不可估量。
目前在光缆通信中，根据敷设方法，光缆可分为架空、直埋和管道三种，在架空光缆中，根据承力方式，可分为自承式架空光缆和非自承式架空光缆。非自承式架空光缆需要预先敷设钢绞线，通过配套的挂件将光缆固定在钢绞线上，自承式架空光缆自身的加强构件能承受自重及外界负荷，可直接用于架空敷设。目前所使用的自承式架空光缆可分为两大类：ADSS自承式架空光缆和8字形自承式架空光缆，其中，ADSS自承式架空光缆由芳纶提供拉力，全介质结构，由于芳纶价格高，导致光缆整体造价偏高，常用于电力系统中高空敷设，被生物破坏的几率较小。8字形自承式架空光缆常用于山林、农村、郊区的架空敷设，该种光缆性能优异，施工方便，深受客户青睐，但是被生物破坏的情况也是屡见不鲜。目前防生物光缆一般使用不锈钢带铠装，不锈钢带不仅能防止鼠类咬穿光缆，还能在外表皮破损的情况下防止生锈带来的破坏，能够很好的解决生物啮咬的问题，但是不锈钢带作为铠装层增加了雷击的风险，对于架空光缆，防雷是一个重要的考虑因素。
传统光缆在套管内和缆芯外采用填充油膏的方式进行阻水，优点是能够很好的防止水和潮气进入光缆，缺点是油膏的填充不仅给生产制造带来了不便利性，而且也大大增加了光缆的重量，光缆一旦发生破皮，油膏的气味会吸引松鼠等鼠类生物对其进行啮咬，从而加剧了光缆的损坏。
现有光缆的缆芯大多数采用常规层绞式结构，松套管围绕中心加强件绞合成型，增加了光缆的重量。
发明内容
为解决现有技术中的问题，本发明的目的在于提供一种8字形防生物啮咬光缆，为全干式的非金属结构8字形防生物啮咬光缆。
为实现上述目的，达到上述技术效果，本发明采用的技术方案为：
一种8字形防生物啮咬光缆，所述8字形防生物啮咬光缆的截面呈8字形，包括主缆缆芯和吊线缆芯，所述主缆缆芯和吊线缆芯并列放置并通过吊带连接成一体，主缆缆芯为无中心加强件式层绞结构或中心管式结构，主缆缆芯包括光纤芯，若干根光纤芯相互绞合成缆，外包阻水带，阻水带外包覆FRP铠装层，FRP铠装层外包覆外护套，阻水带与FRP铠装层之间选择性设置或不设置内护套，主缆缆芯为无中心加强件式层绞结构时，阻水带与FRP铠装层之间设置内护套，主缆缆芯为中心管式结构时，阻水带与FRP铠装层之间不设置内护套。
进一步的，所述主缆缆芯为无中心加强件式层绞结构，主缆缆芯包括光纤、阻水纱、全干式松套管、阻水带、内护套、FRP铠装层和外护套，若干根光纤及阻水纱被松包在松套管内，形成光纤芯，至少两根光纤芯和填充绳围绕阻水纱进行相互绞合成缆，填充若干根阻水纱，不使用中心加强件，光纤芯成缆后外包裹阻水带，阻水带外包覆内护套，内护套外包覆FRP铠装层，FRP铠装层外包覆外护套。
进一步的，三根光纤芯和填充绳围绕阻水纱进行相互绞合成缆，填充若干根阻水纱，不使用中心加强件。
进一步的，所述主缆缆芯为带有单根光纤芯的中心管式结构，主缆缆芯包括光纤、阻水纱、全干式松套管、阻水带、FRP铠装层和外护套，若干根光纤及阻水纱被松包在松套管内，形成光纤芯，光纤芯外包裹阻水带，阻水带外包覆FRP铠装层，FRP铠装层外包覆外护套。
进一步的，所述内护套和外护套分别采用聚乙烯材料制成。
进一步的，所述FRP铠装层采用圆形或扁圆形杆状纤维增强塑料FRP材料。
进一步的，所述主缆缆芯上方并列设置吊线缆芯，所述吊线缆芯包括吊线和包覆于吊线外部的PE外护套，外护套通过吊带与PE外护套连接并形成一体结构。
进一步的，所述吊线采用纤维增强塑料FRP制成。
与现有技术相比，本发明的有益效果为：
1)采用全干式阻水方式进行阻水，本申请的8字形防生物啮咬光缆全截面无油膏，全干式松套管内填充若干阻水纱干式阻水物，再外包阻水带，全干式结构降低了光缆的重量，以288芯为例，全干式光缆比油膏填充式的结构轻约11％，大大降低了架空敷设时光缆所承受的拉力；
2)采用无中心加强件式层绞结构或中心管式结构的缆芯，根据芯数要求可用0-3根光 纤芯和填充绳围绕阻水纱进行相互绞合成缆，不使用中心加强件，降低缆重；采用无中心加强件式层绞结构用阻水带包裹后进行内护套保护，中心管式结构用阻水带包裹后无需内护，可直接进行FRP铠装，工艺简单、性能优异；
3)使用圆形或扁平形杆状纤维增强塑料FRP进行铠装，起到防生物啮咬、提高光缆拉伸、压扁等机械性能的作用，纤维增强塑料中的细小毛刺能够在发生鼠类啮咬的情况下，起到刺激其口腔的作用，有效达到防鼠效果，解决了现有8字形光缆被生物啮咬的问题；
4)采用整体全介质非金属结构，无金属导体，可有效做到防雷防电的效果，同时，在保证机械性能和环境性能的前提下，降低光缆的重量；
5)具有自承式架空、重量轻、防鼠咬、防鸟啄、防雷、防电、便于施工的特点，可应用于山林地区、电力场景的架空敷设，给该场景地区保障了通信的稳定性。
图1为本发明实施例1的结构示意图；
图2为本发明实施例2的结构示意图；
图3为本发明实施例3的结构示意图；
图4为本发明实施例4的结构示意图；
图5为本发明实施例1和实施例2的制备工艺流程图；
图6为本发明实施例3和实施例4的制备工艺流程图；
其中，1-光纤；2-阻水纱；3-松套管；4-阻水带；5-内护套；6-FRP铠装层；7-外护套；8-吊线；9-PE外护套；10-吊带。
下面对本发明的实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
如图1-6所示，一种8字形防生物啮咬光缆，综合考虑工艺控制、敷设效率、施工成本等方面，采用自承式架空敷设为理论设计基础，在8字形自承式结构的光缆基础上进行创新改善，8字形防生物啮咬光缆主要包括主缆缆芯和吊线缆芯，主缆缆芯可为无中心加强件式层绞结构或中心管式结构，根据芯数要求可用0-3根光纤芯和填充绳围绕阻水纱2进行相互绞合成缆，不使用中心加强件，层绞结构用阻水带4包裹后进行一次护套形成内护套5，中心管式结构用阻水带4包裹后直接进行FRP铠装保护，无需内护套保护，使用圆形或扁平形杆状纤维增强塑料FRP进行铠装，起到防生物啮咬、提高光缆拉伸、压扁等 机械性能的作用。
实施例1
如图1和图5所示，一种8字形防生物啮咬光缆，包括主缆缆芯和吊线缆芯，主缆缆芯为无中心加强件式层绞结构，主缆缆芯包括光纤1、阻水纱2、全干式松套管3、包覆在全干式松套管3外部的阻水带4、内护套5、FRP铠装层6和外护套7，若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，全干式松套管3内设有光纤1和干式阻水物(阻水纱2)，全干式结构有助于降低缆重，根据芯数要求可用3根光纤芯和填充绳围绕阻水纱2进行相互绞合成缆，填充若干根阻水纱2，不使用中心加强件，成缆后外包裹阻水带4，阻水带4外使用聚乙烯材料一次护套后形成内护套5，内护套5外部包覆FRP铠装层6，FRP铠装层6使用扁圆形杆状纤维增强塑料FRP材料进行铠装，铠装后再通过聚乙烯材料二次护套成型，形成外护套7，最终形成主缆缆芯，主缆缆芯上方设置吊线缆芯，吊线缆芯包括吊线8和包覆于吊线8外部的PE外护套9，吊线8采用纤维增强塑料FRP制成，外护套7通过吊带10与PE外护套9连接，外护套7、吊带10和PE外护套9连接成一体，最终形成截面呈8字形的全介质非金属无中心加强件式层绞结构。
实施例1的8字形防生物啮咬光缆的制备工艺流程如图5所示，光纤1入库后进行光纤着色，随后将着色的若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，随后3根光纤芯和填充绳围绕阻水纱2进行相互绞合成缆，不使用中心加强件，成缆后外包阻水带4，阻水带4外使用聚乙烯材料一次护套后进行FRP铠装，再通过聚乙烯材料二次护套成型，最后进行性能测试，合格即可出厂，不合格品报废或重做。
实施例2
如图2和图5所示，一种8字形防生物啮咬光缆，包括主缆缆芯和吊线缆芯，主缆缆芯为无中心加强件式层绞结构，主缆缆芯包括光纤1、阻水纱2、全干式松套管3、包覆在全干式松套管3外部的阻水带4、内护套5、FRP铠装层6和外护套7，若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，全干式松套管3内设有光纤1和干式阻水物(阻水纱2)，全干式结构有助于降低缆重，根据芯数要求可用3根光纤芯和填充绳围绕阻水纱2进行相互绞合成缆，填充若干根阻水纱2，不使用中心加强件，成缆后外包裹阻水带4，阻水带4外使用聚乙烯材料一次护套后形成内护套5，内护套5外部包覆FRP铠装层6，FRP铠装层6使用圆形杆状纤维增强塑料FRP材料进行 铠装，铠装后再通过聚乙烯材料二次护套成型，形成外护套7，最终形成主缆缆芯，主缆缆芯上方设置吊线缆芯，吊线缆芯包括吊线8和包覆于吊线8外部的PE外护套9，吊线8采用纤维增强塑料FRP制成，外护套7通过吊带10与PE外护套9连接，外护套7、吊带10和PE外护套9连接成一体，最终形成截面呈8字形的全介质非金属无中心加强件式层绞结构。
实施例2的8字形防生物啮咬光缆的制备工艺流程如图5所示，光纤1入库后进行光纤着色，随后将着色的若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，随后3根光纤芯和填充绳围绕阻水纱2进行相互绞合成缆，不使用中心加强件，成缆后外包阻水带4，阻水带4外使用聚乙烯材料一次护套后进行FRP铠装，再通过聚乙烯材料二次护套成型，最后进行性能测试，合格即可出厂，不合格品报废或重做。
余同实施例1。
实施例3
如图3和图6所示，一种8字形防生物啮咬光缆，包括主缆缆芯和吊线缆芯，主缆缆芯为中心管式结构，主缆缆芯包括光纤1、阻水纱2、全干式松套管3、包覆在全干式松套管3外部的阻水带4、FRP铠装层6和外护套7，若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，松套管3外包裹阻水带4，阻水带4外进行FRP铠装保护，形成FRP铠装层6，FRP铠装层6使用扁圆形杆状纤维增强塑料FRP材料进行铠装，铠装后再通过聚乙烯材料护套成型形成外护套7，主缆缆芯上方设置吊线缆芯，吊线缆芯包括吊线8和包覆于吊线8外部的PE外护套9，吊线8采用一根纤维增强塑料FRP制成，外护套7通过吊带10与PE外护套9连接，外护套7、吊带10和PE外护套9连接成一体，最终形成截面呈8字形的全介质非金属中心管式结构。
实施例3的8字形防生物啮咬光缆的制备工艺流程如图6所示，光纤1入库后进行光纤着色，随后将着色的若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，外包裹阻水带4，阻水带4外进行FRP铠装，再通过聚乙烯材料二次护套成型，最后进行性能测试，合格即可出厂，不合格品报废或重做。
实施例4
如图4和图6所示，一种8字形防生物啮咬光缆，包括主缆缆芯和吊线缆芯，主缆缆芯为中心管式结构，主缆缆芯包括光纤1、阻水纱2、全干式松套管3、包覆在全干式松套管3外部的阻水带4、FRP铠装层6和外护套7，若干根光纤1及阻水纱2通过内层一次 套塑工艺被松包在松套管3内，松套管3外包裹阻水带4，阻水带4外进行FRP铠装保护，形成FRP铠装层6，FRP铠装层6使用圆形杆状纤维增强塑料FRP材料进行铠装，铠装后再通过聚乙烯材料护套成型形成外护套7，主缆缆芯上方设置吊线缆芯，吊线缆芯包括吊线8和包覆于吊线8外部的PE外护套9，吊线8采用一根纤维增强塑料FRP制成，外护套7通过吊带10与PE外护套9连接，外护套7、吊带10和PE外护套9连接成一体，最终形成截面呈8字形的全介质非金属中心管式结构。
实施例4的8字形防生物啮咬光缆的制备工艺流程如图6所示，光纤1入库后进行光纤着色，随后将着色的若干根光纤1及阻水纱2通过内层一次套塑工艺被松包在松套管3内，形成光纤芯，外包裹阻水带4，阻水带4外进行FRP铠装，再通过聚乙烯材料二次护套成型，最后进行性能测试，合格即可出厂，不合格品报废或重做。
余同实施例3。
本发明未具体描述的部分采用现有技术即可，在此不做赘述。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
Claims (7)
- 一种8字形防生物啮咬光缆，其特征在于，所述8字形防生物啮咬光缆的截面呈8字形，包括主缆缆芯和吊线缆芯，所述主缆缆芯和吊线缆芯并列放置并通过吊带连接成一体，主缆缆芯为无中心加强件式层绞结构或中心管式结构，主缆缆芯包括光纤芯，若干根光纤芯相互绞合成缆，外包阻水带，阻水带外包覆FRP铠装层，FRP铠装层外包覆外护套，阻水带与FRP铠装层之间选择性设置内护套。
- 根据权利要求1所述的一种8字形防生物啮咬光缆，其特征在于，所述主缆缆芯为无中心加强件式层绞结构，主缆缆芯包括光纤、阻水纱、全干式松套管、阻水带、内护套、FRP铠装层和外护套，若干根光纤及阻水纱被松包在松套管内，形成光纤芯，至少两根光纤芯和填充绳围绕阻水纱进行相互绞合成缆，填充若干根阻水纱，不使用中心加强件，光纤芯成缆后外包裹阻水带，阻水带外包覆内护套，内护套外包覆FRP铠装层，FRP铠装层外包覆外护套。
- 根据权利要求1所述的一种8字形防生物啮咬光缆，其特征在于，所述主缆缆芯为中心管式结构，主缆缆芯包括光纤、阻水纱、全干式松套管、阻水带、FRP铠装层和外护套，若干根光纤及阻水纱被松包在松套管内，形成光纤芯，光纤芯外包裹阻水带，阻水带外包覆FRP铠装层，FRP铠装层外包覆外护套。
- 根据权利要求1-3任一所述的一种8字形防生物啮咬光缆，其特征在于，所述内护套和外护套分别采用聚乙烯材料制成。
- 根据权利要求1-3任一所述的一种8字形防生物啮咬光缆，其特征在于，所述FRP铠装层采用圆形或扁圆形杆状纤维增强塑料材料制成。
- 根据权利要求1所述的一种8字形防生物啮咬光缆，其特征在于，所述主缆缆芯上方并列设置吊线缆芯，所述吊线缆芯包括吊线和包覆于吊线外部的PE外护套，外护套通过吊带与PE外护套连接并形成一体结构。
- 根据权利要求6所述的一种8字形防生物啮咬光缆，其特征在于，所述吊线采用纤维增强塑料制成。
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| CN112363290A (zh) * | 2020-12-03 | 2021-02-12 | 江苏亨通光电股份有限公司 | 一种8字形防生物啮咬光缆 |
| CN214041817U (zh) * | 2020-12-03 | 2021-08-24 | 江苏亨通光电股份有限公司 | 一种8字形防生物啮咬光缆 |
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| CN116864198B (zh) * | 2023-07-14 | 2024-05-03 | 山东鲁青线缆有限公司 | 一种基于三芯的抗拉抗压抗咬电缆 |
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