CN210110374U - Fire-resistant reinforced optical fiber composite low-voltage cable - Google Patents
Fire-resistant reinforced optical fiber composite low-voltage cable Download PDFInfo
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- CN210110374U CN210110374U CN201920797836.7U CN201920797836U CN210110374U CN 210110374 U CN210110374 U CN 210110374U CN 201920797836 U CN201920797836 U CN 201920797836U CN 210110374 U CN210110374 U CN 210110374U
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- flame retardant
- optical fiber
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 34
- 239000013307 optical fiber Substances 0.000 title claims description 31
- 239000002131 composite material Substances 0.000 title claims description 21
- 239000010410 layer Substances 0.000 claims abstract description 79
- 239000011241 protective layer Substances 0.000 claims abstract description 57
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003063 flame retardant Substances 0.000 claims abstract description 49
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 238000005253 cladding Methods 0.000 claims abstract description 6
- 230000017105 transposition Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 229920000098 polyolefin Polymers 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 229910052628 phlogopite Inorganic materials 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 9
- 239000011247 coating layer Substances 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses a fire-resistant strenghthened type compound low tension cable of optic fibre, including at least one insulation core that is used for transmitting electricity, at least one transmission fiber signal's optical unit, the cable filler is laid between insulation core and the optical unit, insulation core, optical unit and cable filler transposition and constitute the centre layer, the centre layer outside from inside to outside in proper order the cladding have first flame retardant coating, the protective layer, flame retardant coating and protective layer include at least two sets ofly, stack is repeated in proper order to flame retardant coating and protective layer, outermost protective layer crowded package sheath outward. The outer first flame retardant coating that wraps of first flame retardant coating of this cable, first flame retardant coating wrap first protective layer outward, the outer second flame retardant coating that wraps of first protective layer, the outer second protective layer that wraps of second flame retardant coating. The utility model discloses a cable has possessed fire-resistant, fire prevention characteristic, extensively is applicable to occasions that have the requirement to power supply, information transmission and fire prevention simultaneously such as track traffic.
Description
Technical Field
The utility model relates to a fire-resistant strenghthened type compound low tension cable of optic fibre belongs to optic fibre optical cable and cable technical field.
Background
An optical fiber composite low-voltage cable (OPLC) integrates optical fibers and power transmission lines, and is one of cable types for solving the problems of power consumption, data transmission and the like of equipment. Because the OPLC has the characteristics of high reliability, data transmission, low price, convenient connection and the like, particularly the cable also has the following characteristics: the cable has the advantages of small outer diameter, light weight, small occupied space, integration of the optical cable and the power line, avoidance of secondary wiring, reduction of engineering cost, and simultaneous satisfaction of equipment power supply, signal transmission and the like. At present, the method is widely applied in the power industry. However, the general fire-resistant optical fiber composite low-voltage cable cannot meet the corresponding requirements in certain fire-fighting occasions. When the composite cable is in a fire state, the direct current resistance of the conductor is increased and the optical fiber loss is increased along with the rise of the temperature of the cable core, so that the data transmission capability of electric power and optical signals is greatly reduced, and even the data transmission capability of the electric power and the optical signals is lost.
Disclosure of Invention
The utility model aims to overcome among the prior art "compound low-voltage basket of fire-resistant type optic fibre can't satisfy the fire control occasion requirement, and rise because the cable core temperature when the state of catching fire, lead to reducing and lose even not enough of electric power and light signal data transmission ability", provide a compound low-voltage cable of fire-resistant strenghthened type optic fibre, be applicable to the occasion that has the fire prevention requirement, like the subway, the hospital, the needs of high-rise building etc., have light in weight, occupation space is little, halogen-free gas, characteristics such as non-toxicity, can improve the security that compound optic fibre cable used under the conflagration condition, the reliability, do benefit to personnel in time sparse, fire-fighting equipment normally starts and the normal. In order to solve the above problem, the utility model discloses a technical scheme as follows:
the utility model provides a fire-resistant strenghthened type compound low tension cable of optic fibre, including at least one insulation core that is used for the transmission of electricity, at least one optical unit that transmits optical signal, the cable filler is laid between insulation core and the optical unit, insulation core, optical unit and cable filler transposition and constitute the centre layer, the centre layer outside from inside to outside in proper order the cladding have first flame retardant coating, the protective layer, flame retardant coating and protective layer include two sets ofly at least, flame retardant coating and protective layer are according to the order of sequence repeated stack, outermost protective layer is crowded package sheath outward.
Further, aforementioned fire-resistant strenghthened type compound low tension cable of optic fibre still includes first flame retardant coating, first protective layer, second flame retardant coating, second protective layer, the first flame retardant coating of outer cladding of first flame retardant coating, first flame retardant coating is wrapped first protective layer outward, the outer cladding second flame retardant coating of first protective layer, the second flame retardant coating is wrapped the second protective layer outward.
Preferably, the insulated wire core comprises a conductor, a first insulating layer, a third protective layer, a second insulating layer and a second fire-resistant layer, the first insulating layer is wrapped outside the conductor, the third protective layer is wrapped outside the first insulating layer, and the second insulating layer is wrapped outside the third protective layer; the second insulating layer is wrapped with a second refractory layer.
Preferably, the material of the conductor is a copper conductor; the first insulating layer is made of fire-resistant mica tapes, including calcined mica tapes, synthetic mica tapes and auro mica tapes, and the number of the layers is 1-4. The third protective layer is a halogen-free glass ribbon; the material of the second insulating layer is one of cross-linked polyethylene, low-smoke zero-halogen polyolefin and irradiation cross-linked polyolefin.
Furthermore, the insulated wire core is 2-5 cores.
Further, the number of the light units is 1-4.
Further, the optical unit comprises an optical fiber, an optical unit filler, a stainless steel pipe and a third fire-resistant layer, the stainless steel pipe is arranged outside the optical fiber and the optical unit filler, the optical unit filler comprises at least one of water-blocking yarn or water-blocking powder, and the stainless steel pipe is wrapped with the third fire-resistant layer.
Preferably, the number of the optical fibers is 2-48 cores.
Further, the cable filler is magnesium hydroxide, and the sheath is made of low-smoke halogen-free polyolefin or flame-retardant polyolefin.
In the fire-resistant reinforced optical fiber composite low-voltage cable, the first fire-resistant layer, the second fire-resistant layer and the third fire-resistant layer are made of ceramic polyolefin or ceramic silicon rubber materials, the fire-resistant layer is made of magnesium hydroxide, and the protective layer is made of halogen-free glass ribbon.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
the utility model provides a pair of compound low tension cable of fire-resistant strenghthened type optic fibre has possessed fire-resistant, fire prevention characteristic, satisfies compound cable under the condition of burning, still can keep normal power supply and optical data transmission in 90 minutes, and the utility model discloses light in weight, compact structure, cooling measure effect are showing to have certain pliability, be applicable to track traffic, underground pivot, high-rise building etc. simultaneously have the occasion of requirement to power supply, information transmission and fire prevention extensively.
Drawings
Fig. 1 is a schematic structural view of the fire-resistant reinforced optical fiber composite low-voltage cable of the present invention;
FIG. 2 is a schematic structural view of the insulated wire core of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the light unit in FIG. 1;
in the figure: 1-an insulated wire core, 11-a conductor, 121-a first insulating layer, 13-a third protective layer, 122-a second insulating layer, 14-a second flame retardant layer, 2-an optical unit, 21-an optical fiber, 22-an optical unit filler, 23-a stainless steel tube, 24-a third flame retardant layer, 3-a cable filler, 4-a first flame retardant layer, 51-a first flame retardant layer, 61-a first protective layer, 52-a second flame retardant layer, 62-a second protective layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The utility model provides a compound low tension cable of fire-resistant strenghthened type optic fibre, including at least one insulation core 1 that is used for the transmission of electricity, at least one transmission fiber signal's light unit 2, cable filler 3 lays between insulation core 1 and light unit 2, insulation core 1, light unit 2 and 3 transposition of cable filler form the centre layer, the centre layer outside from inside to outside in proper order the cladding have first flame retardant coating 4, the flame retardant coating, the protective layer, flame retardant coating and protective layer include at least two sets ofly, stack is repeated in proper order to flame retardant coating and protective layer, outermost protective layer is crowded package sheath 7 outward.
In this embodiment, specifically, the fire-resistant reinforced optical fiber composite low-voltage cable further includes a first fireproof layer 51, a first protective layer 61, a second fireproof layer 52, and a second protective layer 62, wherein the first fireproof layer 51 is coated outside the first fireproof layer 4, the first fireproof layer 51 is wrapped around the first protective layer 61, the second fireproof layer 52 is coated outside the first protective layer 61, and the second protective layer 62 is wrapped around the second fireproof layer 52. The material of the first protective layer 61 and the second protective layer 62 is halogen-free glass ribbon. The first flame retardant coating 4 is a ceramic polyolefin lapping tape. The material of the first flame retardant layer 51 and the second flame retardant layer 52 is magnesium hydroxide. Specifically, the cable filler 3 is magnesium hydroxide, and the sheath 7 is made of low-smoke halogen-free polyolefin.
In this embodiment, preferably, the insulated wire core 1 includes a conductor 11, a first insulating layer 121, a third protective layer 13, a second insulating layer 122 and a second refractory layer 14, the first insulating layer 121 is wrapped around the conductor 11, the third protective layer 13 is wrapped around the first insulating layer 121, and the second insulating layer 122 is wrapped around the third protective layer 13; the second insulating layer 122 wraps the second refractory layer 14. The second flame retardant coating 14 is a ceramic polyolefin tape.
In the present embodiment, the material of the conductor 11 is preferably a copper conductor 11; the first insulating layer 121 is made of fire-resistant mica tape; the third protective layer 13 is a halogen-free glass ribbon; the material of the second insulating layer 122 is cross-linked polyethylene.
In this embodiment, the number of the insulated wire cores 11 is 3.
In this embodiment, the number of the light units 2 is 1.
In this embodiment, specifically, the optical unit 2 includes an optical fiber 21, an optical unit filler 22, a stainless steel tube 23, and a third flame retardant coating 24, the stainless steel tube 23 is disposed outside the optical fiber 21 and the optical unit filler 22, the optical unit filler 22 is a water-blocking yarn, and the stainless steel tube 23 is wrapped around the third flame retardant coating 24. The third flame retardant layer 24 is a ceramic polyolefin tape, two in number.
In the present embodiment, the number of the optical fibers 21 is preferably 8 cores.
The preparation process comprises the following steps:
the insulating wire core 1 is formed by sequentially wrapping a fire-resistant mica tape, a halogen-free glass ribbon, extruded cross-linked polyethylene and wrapped ceramic polyolefin outside a stranded copper conductor 11; the optical unit 2 is composed of a stainless steel tube 23 containing 8-core optical fibers 21 and 6 optical unit fillers 22, the optical unit fillers 22 are water-blocking yarns, and two layers of 0.4mm ceramic polyolefin tapes wrap the outer side of the stainless steel tube 23 to form the optical unit 2.
Insulating sinle silk 1, optical unit 2 and cable filler 3 are first flame retardant coating 4 around the package two-layer porcelainized polyolefin area after the transposition is filled, and the crowded package magnesium hydrate is first flame retardant coating 51 outside first flame retardant coating 4, and the package is halogen-free glass silk area around the first flame retardant coating 51 outside is first protective layer 61, and the crowded package magnesium hydrate in the first protective layer 61 outside is second flame retardant coating 52 two, and second flame retardant coating 52 is the second protective layer 62 around the package halogen-free glass silk area outward, and the crowded package of second protective layer 62 is halogen-free low smoke polyolefin is sheath 7 outward.
By improving the light unit filling material, the heat insulating properties of the light unit are enhanced. The cable core temperature of the fire-resistant composite cable is kept within 200 ℃ by adopting mineral filling and the design of the three fire-resistant and fire-proof layers, so that normal power supply and optical fiber data transmission can be still kept within 90 minutes under the condition of fire, and the cable is widely suitable for occasions with power supply, information transmission and fire prevention requirements, such as metallurgy, petrochemical industry and the like. According to the improved optical fiber composite cable, the internal components are improved to enhance the fireproof and fire-resistant performance of the optical fiber composite cable, so that the insulating wire core of the composite cable can still maintain normal and effective power supply in a fire state, the normal transmission function of optical signals is realized, the equipment for fire fighting and the like can still normally work in the fire state, the guarantee of the property safety of people is further enhanced, and the influence caused by fire is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides a fire-resistant strenghthened type compound low tension cable of optic fibre, its characterized in that includes at least one insulating core, at least one optical unit, the cable filler that is used for the transmission of electricity, the cable filler lay in insulating core with between the optical unit, insulating core optical unit with the transposition of cable filler forms the centre layer, and the centre layer outside from inside to outside in proper order has cladding first flame retardant coating, protective layer, the flame retardant coating with the protective layer includes at least two sets ofly, the flame retardant coating with the protective layer is in proper order repeatedly superpose in proper order, outmost the protective layer is crowded package sheath outward.
2. The optical fiber composite low-voltage cable according to claim 1, comprising a first fireproof layer, a first protective layer, a second fireproof layer and a second protective layer, wherein the first fireproof layer is wrapped outside the first fireproof layer, the first protective layer is wrapped outside the first fireproof layer, the second fireproof layer is wrapped outside the first protective layer, and the second protective layer is wrapped outside the second fireproof layer.
3. The optical fiber composite low-voltage cable according to claim 2, wherein the insulated wire core comprises a conductor, a first insulating layer, a third protective layer, a second insulating layer and a second fire-resistant layer, the conductor is wrapped around the first insulating layer, the third protective layer is wrapped around the first insulating layer, and the second insulating layer is wrapped around the third protective layer; and the second refractory layer is wrapped outside the second insulating layer.
4. The fiber optic composite low voltage cable of claim 3, wherein the conductor material is a copper conductor; the first insulating layer is made of fire-resistant mica tapes, including calcined mica tapes, synthetic mica tapes and phlogopite tapes, and the number of layers is 1-4; the third protective layer is a halogen-free glass ribbon; the material of the second insulating layer is one of cross-linked polyethylene, low-smoke zero-halogen polyolefin and irradiation cross-linked polyolefin.
5. The optical fiber composite low-voltage cable according to claim 1, wherein the insulated wire core is 2-5 cores.
6. The optical fiber composite low-voltage cable according to claim 1, wherein the number of the optical units is 1-4.
7. The optical fiber composite low-voltage cable according to claim 1, wherein the optical unit comprises an optical fiber, an optical unit filler, a stainless steel tube and a third fire-resistant layer, the stainless steel tube is arranged outside the optical fiber and the optical unit filler, the optical unit filler comprises at least one of water-blocking yarn or water-blocking powder, and the stainless steel tube is wrapped around the third fire-resistant layer.
8. The optical fiber composite low-voltage cable according to claim 7, wherein the number of the optical fibers is 2-48 cores.
9. The optical fiber composite low-voltage cable according to claim 1, wherein the cable filler is magnesium hydroxide, and the sheath is made of low-smoke halogen-free polyolefin or flame-retardant polyolefin.
10. The optical fiber composite low-voltage cable according to any one of claims 1 to 9, wherein the materials of the first flame-retardant layer, the second flame-retardant layer and the third flame-retardant layer are ceramic polyolefin or ceramic silicone rubber materials, the material of the flame-retardant layer is magnesium hydroxide, and the material of the protective layer is halogen-free glass ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797836.7U CN210110374U (en) | 2019-05-29 | 2019-05-29 | Fire-resistant reinforced optical fiber composite low-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797836.7U CN210110374U (en) | 2019-05-29 | 2019-05-29 | Fire-resistant reinforced optical fiber composite low-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110374U true CN210110374U (en) | 2020-02-21 |
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ID=69563889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920797836.7U Active CN210110374U (en) | 2019-05-29 | 2019-05-29 | Fire-resistant reinforced optical fiber composite low-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110374U (en) |
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2019
- 2019-05-29 CN CN201920797836.7U patent/CN210110374U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240123 Address after: 214000, No. 58 Mashan Hushan Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Hongtu Optoelectronic Cable (Wuxi) Co.,Ltd. Country or region after: China Address before: No. 11 Xinke Fourth Road, Jiangbei New Area, Nanjing, Jiangsu Province, 211106 Patentee before: JIANGSU HITEKER Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |