CN113363006B - Multi-scene flame-retardant butterfly-shaped photoelectric composite cable - Google Patents
Multi-scene flame-retardant butterfly-shaped photoelectric composite cable Download PDFInfo
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- CN113363006B CN113363006B CN202110716659.7A CN202110716659A CN113363006B CN 113363006 B CN113363006 B CN 113363006B CN 202110716659 A CN202110716659 A CN 202110716659A CN 113363006 B CN113363006 B CN 113363006B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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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
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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
- G02B6/4436—Heat resistant
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The invention discloses a multi-scene flame-retardant photoelectric composite cable which comprises a first outer sheath, a fireproof layer, a first waterproof layer, a second outer sheath, a reinforcing layer, a second waterproof layer and a cable core, wherein the first outer sheath, the fireproof layer, the first waterproof layer, the second outer sheath, the reinforcing layer and the second waterproof layer are sequentially arranged on the outer side of the cable core from outside to inside. The invention adopts the two layers of outer sheaths, the photoelectric composite cable core and the outer sheath of the butterfly-shaped optical cable to form a protection structure with the three layers of sheaths, and simultaneously, the fireproof layer is added, so that the photoelectric signal transmission can be carried out in a multi-fire area, and the safety of the product is greatly increased and decreased.
Description
Technical Field
The invention relates to a photoelectric composite cable, in particular to a multi-scene flame-retardant butterfly-shaped photoelectric composite cable, and belongs to the field of photoelectric composite cables.
Background
With the advancement of optical fiber cable services, more and more manufacturers are not limited to only transmitting optical signals, and more products are expected to transmit optical signals and electrical signals, and meanwhile, the products are expected to be applicable to various construction scenes, and the construction is convenient and simple. At present, most of photoelectric composite cables on the market are formed by simply integrating original cables and optical cables into a photoelectric composite cable for use in a mode of increasing an outer sheath, and the photoelectric composite cable mainly has the following problems: 1. the fire-proof grade is low, and the fire-proof material cannot be applied to areas such as forests which are easy to fire; 2. in mountainous regions, forests, northern regions (with low climate) and the like, the transmission of optical signals and electric signals is simply handled by dividing two products, so that the construction efficiency is greatly reduced; 3. the strength is low, the tensile and compressive properties are poor, and the requirements of high temperature resistance and low temperature resistance environment cannot be met; 4. the capability of simultaneously applying indoor scenes and outdoor scenes cannot be achieved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a multi-scene flame-retardant butterfly-shaped photoelectric composite cable which can transmit photoelectric signals in a multi-fire area and greatly improve the safety and the strength of products.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a fire-retardant butterfly photoelectric composite cable of many scenes which characterized in that: the cable comprises a first outer sheath, a fireproof layer, a first waterproof layer, a second outer sheath, a reinforcing layer, a second waterproof layer and a cable core, wherein the first outer sheath, the fireproof layer, the first waterproof layer, the second outer sheath, the reinforcing layer and the second waterproof layer are sequentially arranged on the outer side of the cable core from outside to inside.
Further, the cable core comprises a composite optical cable core and two butterfly optical cables.
Furthermore, the composite optical cable core comprises a plurality of wires, a wire outer sheath, a microbeam tube outer sheath and a connecting piece, wherein the plurality of wires are twisted into a wire bundle, the wire outer sheath is sleeved on the outer side of the wire bundle, the microbeam tube outer sheath is sleeved on the outer side of the microbeam tube, an optical fiber bundle is arranged in the microbeam tube, and the wire outer sheath and the microbeam tube outer sheath are fixedly connected through the connecting piece.
Furthermore, the upper side and the lower side of the outer sheath of the microbeam are respectively provided with a notch, the left side and the right side of the outer sheath of the microbeam are respectively embedded with a reinforcing piece, and the two reinforcing pieces are point-symmetrical with the center of the microbeam.
Further, an armor layer is arranged between the first waterproof layer and the second outer sheath, and the armor layer is spirally armored by 304 stainless steel wires.
Furthermore, two parallel reinforcing pieces are arranged in the first outer sheath, the two parallel reinforcing pieces are symmetrically arranged on two sides of the first outer sheath, and the parallel reinforcing pieces are glass fiber reinforced plastic rods.
Furthermore, the reinforcing layer is made of one or more of aramid fiber, glass fiber yarn or polyester yarn.
Further, the first outer sheath and the second outer sheath are made of low-smoke halogen-free flame retardant materials.
Furthermore, the first water-blocking layer and the second water-blocking layer adopt double-sided water-blocking tapes, the double-sided water-blocking tapes are formed by sequentially compounding polyester fiber non-woven fabrics, high water absorption expansion materials and polyester fiber non-woven fabrics, and the stream expansion materials adopt cross-linked polyacrylate.
Further, the fireproof layer is made of mica tapes.
Compared with the prior art, the invention has the following advantages and effects:
1. the invention adopts the two layers of outer sheaths, the photoelectric composite cable core and the outer sheath of the butterfly-shaped optical cable to form a protection structure with three layers of sheaths, and the fireproof layer is added at the same time, so that the photoelectric signal transmission can be carried out in a multi-fire area, and the safety of the product is greatly increased and decreased;
2. the invention adopts a full-dry structure, is free from oil paste filling, is environment-friendly and pollution-free;
3. the invention adopts the combination of the parallel reinforcing piece and the armor layer, greatly improves the strength of the composite cable, ensures the safety of the internal photoelectric unit, and enables the product to still transmit photoelectric signals in mountainous regions, forests and other regions; the invention can prevent rodents and ensure that the internal photoelectric unit is not damaged;
4. the invention adopts a multilayer sheath structure, and facilitates the corresponding adjustment and combination of interlayer sheath materials, thereby having good signal transmission capability in extremely low temperature and high temperature environments;
5. the photoelectric composite cable has excellent tensile and compressive properties, can be overhead, can be used as a pipeline, can be directly buried, can bear frozen soil extrusion even under the condition of frozen soil, and ensures internal photoelectric signal transmission;
6. the invention can deal with indoor and outdoor dual-purpose scenes, can directly enter the house outdoors, is convenient to construct and degrade, and internal photoelectric components can be torn off by hands, thereby greatly increasing the construction efficiency.
Drawings
Fig. 1 is a schematic diagram of a multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to the invention.
Detailed Description
Technical solutions adopted in embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and the embodiments.
As shown in fig. 1, the multi-scenario flame-retardant butterfly-shaped photoelectric composite cable comprises a first outer sheath 1, a fireproof layer 2, a first waterproof layer 3, an armor layer 4, a second outer sheath 5, a reinforcing layer 6, a second waterproof layer 7 and a cable core, wherein the first outer sheath 1, the fireproof layer 2, the first waterproof layer 3, the armor layer 4, the second outer sheath 5, the reinforcing layer 6 and the second waterproof layer 7 are sequentially arranged on the outer side of the cable core from outside to inside.
The cable core comprises a composite optical cable core and two butterfly-shaped optical cables. The compound optical cable core comprises a plurality of wires 8, a wire outer sheath 9, a micro-beam tube 10, a micro-beam tube outer sheath 11 and a connecting piece 12. A plurality of electric wires 8 are twisted into a wire bundle, the electric wires 8 generally adopt twisted wires, the number of the electric wires is generally 1-8 pairs of twisted wires, the twisted wires adopt oxygen-free copper mesh wires, the size of each conductor is 0.575mm, the overall size is 1.02mm, and the conductors are twisted in pairs. The wire outer sheath 9 is sleeved on the outer side of the wire bundle, the microbeam tube outer sheath 11 is sleeved on the outer side of the microbeam tube 10, the optical fiber bundle is arranged in the microbeam tube 10, and the wire outer sheath 9 and the microbeam tube outer sheath 11 are fixedly connected through the connecting piece 12. The upper side and the lower side of the microbeam tube outer sheath 11 are respectively provided with a notch, the left side and the right side of the microbeam tube outer sheath 11 are respectively embedded with a reinforcing piece 13, and the two reinforcing pieces 13 are point-symmetrical with the center of the microbeam tube. At least 1 optical fiber, typically a single mode fiber, is contained within the microbeam tube, and the fiber sizes may be nominally 250 μm, 200 μm, and 180 μm, typically distinguished by coloring when the number of fibers exceeds 1. The optical fiber is usually SZ twisted in the micro-beam tube, and can also be S twisted. The wall thickness of the micro-beam tube sheath is generally between 0.1 and 0.2mm, the micro-beam tube sheath is usually made of materials such as LSZH, PVC, TPEE and the like or other polyolefin materials, the density is generally between 1 and 1.5g/cm3, the tensile strength is generally between 10 and 20MPa, and the elongation at break is between 100 and 500 percent. When the outer diameter of the optical fiber is 250 μm, the outer diameter of the 4-core micro-beam tube is usually 1.0 + -0.1 mm, the outer diameter of the 6-core micro-beam tube is usually 1.1 + -0.1 mm, and the outer diameter of the 12-core micro-beam tube is usually 1.3 + -0.1 mm. When the outer diameter of the optical fiber is 200 μm, the outer diameter of the 4-core micro-beam tube is usually 0.9 + -0.1 mm, the outer diameter of the 6-core micro-beam tube is usually 1.0 + -0.1 mm, and the outer diameter of the 12-core micro-beam tube is usually 1.2 + -0.1 mm. When the number of the optical fibers in the micro-beam tube exceeds 12, the optical fibers are distinguished by adopting different numbers of color blocks or color rings which are sprayed and printed on the optical fibers.
The armor layer 4 adopts 304 stainless steel wire spiral armor. The tensile strength of the steel wire needs to meet 1600MPa-1800MPa, the elongation of the steel wire needs to be more than 40%, and the reduction of area is more than 60%. Wherein the inner cavity diameter of the armor layer is defined as the equivalent diameter of the cable core plus a correction factor, namely D 1 = D + K, wherein D 1 The diameter of an inner cavity of the armor layer, D is the equivalent diameter of the cable core, K is a correction coefficient, and the value of K is generally 0.5-1.0 mm. In addition, the diameter of the outer layer of the armor layer is defined as the thickness of the inner layer of the armor plus the flattened armor steel wire, D 2 =D 1 + S, wherein D 2 Is the outer diameter of the armor layer, D 1 The diameter of the inner cavity of the armor layer is shown, and S is the thickness of the steel wire after the armor steel wire is flattened.
Two parallel reinforcing pieces 14 are arranged in the first outer sheath 1, the two parallel reinforcing pieces 14 are symmetrically arranged on two sides of the first outer sheath 1, and the parallel reinforcing pieces 14 are glass fiber reinforced plastic rods. The reinforcer 13 and the parallel reinforcer 14 are generally made of glass fiber reinforced plastic rods, FRP for short, the FRP density is 2.05-2.15g/cm3, the tensile and bending strength is more than or equal to 1100MPa, the tensile and bending elastic modulus is more than or equal to 50GPa, the elongation at break is less than or equal to 4%, the water absorption is less than or equal to 0.1%, and the FRP has a lower thermal expansion coefficient of 5 multiplied by 10 -5 -6×10 -5 K -1 Acid and alkali resistance and stable chemical propertyAnd (4) determining. In order to ensure the bonding force between the FRP and the sheath, the surface is usually coated with a layer of organic polymer, and the pulling force between the FRP and the sheath is more than or equal to 50N. The reinforcing part can also adopt steel wires, the elastic modulus of the steel wires is required to be more than or equal to 190GPa, the tensile strength is more than or equal to 1800MPa, and the residual elongation is less than or equal to 0.1 percent.
The reinforced layer 6 is made of one or more of aramid fiber, glass fiber yarn or polyester yarn.
The first outer sheath 1 and the second outer sheath 5 are made of low-smoke halogen-free flame-retardant materials, and the friction coefficient of the materials is less than 0.2.
The first water-blocking layer 3 and the second water-blocking layer 7 adopt double-sided water-blocking tapes, each double-sided water-blocking tape is formed by sequentially compounding polyester fiber non-woven fabric, high water-absorption expansion materials and polyester fiber non-woven fabric, each high water-absorption expansion material is formed by compounding crosslinked polyacrylate expansion powder, and the double-sided water-blocking tapes are heat-resistant, acid-base-free and stable in chemical resistance; the thickness of the water-blocking tape is less than or equal to 0.25mm, the expansion rate is more than or equal to 10mm/min, the expansion height is more than or equal to 12mm, the tensile strength is more than or equal to 40N/cm, and the elongation at break is more than or equal to 12%. As another embodiment, the water-blocking layer can also adopt water-blocking yarns, the water-blocking yarns are usually compounded by crosslinked polyacrylate expansion powder or are made of a proper water-absorbing material, and the water-blocking yarns have high water absorption and heat resistance, do not contain acid or alkali, have stable chemical properties, do not mildew, have uniform water-absorbing powder on the yarns, do not fall off and have compatibility with the communication optical cable; the expansion rate is more than or equal to 90ml/g/min, the expansion rate is more than or equal to 110ml/g, the tensile strength is more than or equal to 100N, and the elongation at break is more than or equal to 15 percent.
The fireproof layer 2 is made of mica tapes and has excellent fireproof performance, the content of mica on the mica tapes is more than 55%, and the tensile strength is more than 80N/10 mm.
The invention adopts the two layers of outer sheaths, the photoelectric composite cable core and the outer sheath of the butterfly-shaped optical cable to form a protection structure with three layers of sheaths, and the fireproof layer is added at the same time, so that the photoelectric signal transmission can be carried out in a multi-fire area, and the safety of the product is greatly increased and decreased; the invention adopts a full-dry structure, is free from oil paste filling, is environment-friendly and pollution-free; the invention adopts the combination of the parallel reinforcers and the armor layers, greatly improves the strength of the composite cable, ensures the safety of the internal photoelectric unit, and enables the product to still transmit photoelectric signals in mountainous regions, forests and other regions; the invention can prevent rodents and ensure that the internal photoelectric unit is not damaged; the invention adopts a multilayer sheath structure, and facilitates the corresponding adjustment and combination of interlayer sheath materials, thereby having good signal transmission capability in extremely low temperature and high temperature environments; the photoelectric composite cable has excellent tensile and compressive properties, can be overhead, can be used as a pipeline, can be directly buried, can bear frozen soil extrusion even under the condition of frozen soil, and ensures internal photoelectric signal transmission; the invention can deal with indoor and outdoor dual-purpose scenes, can directly enter the house outdoors, is convenient to construct and degrade, and can tear off the internal photoelectric components by hands, thereby greatly increasing the construction efficiency.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a fire-retardant butterfly photoelectric composite cable of many scenes which characterized in that: the cable comprises a first outer sheath, a fireproof layer, a first waterproof layer, a second outer sheath, a reinforcing layer, a second waterproof layer and a cable core, wherein the first outer sheath, the fireproof layer, the first waterproof layer, the second outer sheath, the reinforcing layer and the second waterproof layer are sequentially arranged on the outer side of the cable core from outside to inside; the cable core comprises a composite optical cable core and two butterfly optical cables; the composite optical cable core comprises a plurality of wires, a wire outer sheath, a microbeam tube outer sheath and a connecting piece, wherein the wires are twisted into a wire bundle; the upper side and the lower side of the outer sheath of the micro-beam tube are respectively provided with a notch, the left side and the right side of the outer sheath of the micro-beam tube are respectively embedded with a reinforcing piece, and the two reinforcing pieces are point-symmetrical with the center of the micro-beam tube.
2. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, wherein: an armor layer is arranged between the first waterproof layer and the second outer sheath, and the armor layer is spirally armored by 304 stainless steel wires.
3. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, characterized in that: two parallel reinforcing pieces are arranged in the first outer sheath, the two parallel reinforcing pieces are symmetrically arranged on two sides of the first outer sheath, and the parallel reinforcing pieces are glass fiber reinforced plastic rods.
4. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, characterized in that: the reinforced layer is made of one or more of aramid fiber, glass fiber yarn or polyester yarn.
5. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, characterized in that: the first outer sheath and the second outer sheath are made of low-smoke halogen-free flame-retardant materials.
6. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, characterized in that: the first water-blocking layer and the second water-blocking layer are double-sided water-blocking tapes, the double-sided water-blocking tapes are formed by sequentially compounding polyester fiber non-woven fabric, high water-absorption expansion materials and polyester fiber non-woven fabric, and the high water-absorption expansion materials are cross-linked polyacrylate.
7. The multi-scenario flame-retardant butterfly-shaped photoelectric composite cable according to claim 1, characterized in that: the fireproof layer is made of mica tapes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110716659.7A CN113363006B (en) | 2021-06-28 | 2021-06-28 | Multi-scene flame-retardant butterfly-shaped photoelectric composite cable |
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| CN202110716659.7A CN113363006B (en) | 2021-06-28 | 2021-06-28 | Multi-scene flame-retardant butterfly-shaped photoelectric composite cable |
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| CN113363006B true CN113363006B (en) | 2022-08-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014216177A (en) * | 2013-04-25 | 2014-11-17 | 日立金属株式会社 | Photoelectricity composite cable |
| CN212434326U (en) * | 2020-06-29 | 2021-01-29 | 上海长跃通信技术有限公司 | Full-water-tight photoelectric composite cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014216177A (en) * | 2013-04-25 | 2014-11-17 | 日立金属株式会社 | Photoelectricity composite cable |
| CN212434326U (en) * | 2020-06-29 | 2021-01-29 | 上海长跃通信技术有限公司 | Full-water-tight photoelectric composite cable |
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