CN211858220U - Environment-friendly B1-grade high-performance flame-retardant cable - Google Patents
Environment-friendly B1-grade high-performance flame-retardant cable Download PDFInfo
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- CN211858220U CN211858220U CN201922288535.4U CN201922288535U CN211858220U CN 211858220 U CN211858220 U CN 211858220U CN 201922288535 U CN201922288535 U CN 201922288535U CN 211858220 U CN211858220 U CN 211858220U
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Abstract
In order to solve the problems of high smoke generation, high toxicity and dripping during combustion and easy secondary harm and the like of the existing flame-retardant cable, the utility model provides an environment-friendly B1-grade high-performance flame-retardant cable, which comprises a cable bundle consisting of a plurality of closely arranged cables side by side, wherein the cable consists of a plurality of leads and insulating layers wrapped outside the leads; the cable is filled with flame retardant, an oxygen-isolating inner protective layer is arranged on the outer side of the cable bundle, an interlocking galvanized steel strip armor layer is arranged on the outer side of the oxygen-isolating inner protective layer, and a high-flame-retardant sheath layer is arranged on the outer side of the interlocking galvanized steel strip armor layer; the oxygen-isolating inner protection layer is a sleeve-shaped isolation layer which is made of low-smoke halogen-free materials and extruded and formed on the outer side of the cable bundle; the high flame-retardant sheath layer is a sheath-shaped protective layer which is made of low-smoke halogen-free materials and is extruded and formed on the outer side of the interlocking galvanized steel strip armor layer. The beneficial technical effects of the utility model are that improved fire behaviour and life, can not cause the secondary harm.
Description
Technical Field
The utility model relates to a high performance flame retarded cable manufacturing technology, in particular to environment-friendly B1 level high performance flame retarded cable.
Background
The development of flame-retardant electric wires and cables began in the 70 th twentieth century, and the halogen-containing material has better flame-retardant property, so that the flame-retardant electric wires and cables are widely applied to the flame-retardant cables. However, because the flame retardant material of the cable contains halogen, the flame retardant material has the phenomena of high smoke generation, high toxicity and dripping during combustion, thereby causing great difficulty and harm to scene fire fighting and easily causing secondary harm.
Obviously, the flame-retardant cable in the prior art has the problems of high smoke generation, high toxicity, dripping, easy secondary harm and the like during combustion.
Disclosure of Invention
For solving the phenomenon that high fuming, high toxicity and drippage can appear when prior art flame retarded cable has the burning, very easily cause secondary harm scheduling problem, the utility model provides an environment-friendly B1 level high performance flame retarded cable.
The utility model discloses an environment-friendly type B1 grade high-performance flame-retardant cable, which comprises a cable bundle consisting of a plurality of closely arranged cables side by side, wherein the cable consists of a plurality of leads and an insulating layer wrapped outside the leads; the cable is filled with flame retardant, an oxygen-isolating inner protective layer is arranged on the outer side of the cable bundle, an interlocking galvanized steel strip armor layer is arranged on the outer side of the oxygen-isolating inner protective layer, and a high-flame-retardant sheath layer is arranged on the outer side of the interlocking galvanized steel strip armor layer; the oxygen-isolating inner protection layer is a sleeve-shaped isolation layer which is made of low-smoke halogen-free materials and extruded and formed on the outer side of the cable bundle; the interlocking galvanized steel strip armor layer is a mutual buckling structure which is made of galvanized steel strips and cannot be pulled apart or generate gaps when being bent and stretched; the high flame-retardant sheath layer is a sheath-shaped protective layer which is made of low-smoke halogen-free materials and is extruded and formed on the outer side of the interlocking galvanized steel strip armor layer.
Further, the utility model discloses environment-friendly B1 level high performance flame retarded cable twines after low smoke and zero halogen flame retardant belt winding layer outside the cable harness, and extrusion again separates oxygen inner sheath.
Further, the utility model discloses environment-friendly B1 level high performance flame retarded cable after interlocking galvanized steel strip armor layer outside winding low smoke and zero halogen flame retardant tape winding layer, extrusion high flame retardant restrictive coating again.
Further, the utility model discloses environment-friendly B1 level high performance flame retarded cable, the number of piles of winding the layer at the low smoke and zero halogen flame retardant belt in the interlocking galvanized steel strip armor outside is 3 layers.
The utility model discloses environment-friendly B1 level high performance flame retarded cable's beneficial technological effect has optimized cable structure, has improved fire behaviour and life, can not cause secondary harm, and the material inorganic nothing of adoption contains halogen.
Drawings
Fig. 1 is a schematic structural view of the environment-friendly B1-grade high-performance flame-retardant cable.
The environment-friendly B1 grade high-performance flame-retardant cable of the present invention will be further described with reference to the accompanying drawings and the following detailed description.
Detailed Description
Fig. 1 is the utility model discloses environment-friendly B1 level high performance flame retarded cable's structural schematic diagram, in the picture, 1 is the wire, and 2 is the insulating layer, and 3 is fire-retardant thing, and 4 are low smoke and zero halogen flame retardant tape winding layer, and 5 are the interior sheath of oxygen separation, and 6 are interlocking galvanized steel strip armor, and 7 are low smoke and zero halogen flame retardant tape winding layer, and 8 are high flame retardant restrictive coating. As can be seen from the figure, the environment-friendly type B1 high-performance flame-retardant cable comprises a cable bundle consisting of a plurality of closely arranged cables side by side, wherein each cable consists of a plurality of wires 1 and an insulating layer 2 wrapped outside the wires; the cable is filled with flame retardant 3, an oxygen-isolating inner protective layer 5 is arranged on the outer side of a cable bundle, an interlocking galvanized steel strip armor layer 6 is arranged on the outer side of the oxygen-isolating inner protective layer 5, and a high flame retardant sheath layer 8 is arranged on the outer side of the interlocking galvanized steel strip armor layer 6; the oxygen-isolating inner protection layer 5 is a sleeve-shaped isolation layer which is made of low-smoke halogen-free materials and extruded and formed on the outer side of the cable bundle; the interlocking galvanized steel strip armor layer 6 is a mutual buckling structure which is made of galvanized steel strips and cannot be pulled apart or generate gaps when being bent and stretched; the high flame-retardant sheath layer 8 is a sleeve-shaped protective layer which is made of low-smoke halogen-free materials and is extruded and formed on the outer side of the interlocking galvanized steel strip armor layer. Wherein, the flame retardant 3 is a mesh material mainly made of low-smoke halogen-free material; the low-smoke halogen-free material is a polyolefin cable material which is prepared by taking ethylene-vinyl acetate copolymer EVA and polyoxyethylene POE as main base materials, adding inorganic flame retardant magnesium hydroxide and/or aluminum hydroxide, a lubricant and an antioxidant, and performing precise mixing processing. It can be seen that, the utility model discloses environment-friendly B1 level high performance flame retarded cable has set up between cable bundle and interlocking galvanized steel strip armor and has separated oxygen inner sheath, because it includes inorganic fire retardant magnesium hydroxide and/or aluminium hydroxide to separate oxygen inner sheath, and its oxygen index reaches 48, takes place endothermic reaction during the hydroxide burning, has triple fire-retardant principle: one is that the endothermic reaction during combustion absorbs a large amount of heat; secondly, the water molecules generated by the endothermic reaction absorb a large amount of heat when being vaporized; and thirdly, magnesium oxide and/or aluminum oxide generated by endothermic reaction is a high-grade refractory material, and is adhered to the surface of the cable to further prevent the combustion from proceeding. Additionally, the utility model discloses environment-friendly B1 level high performance flame retarded cable has adopted interlocking galvanized steel strip armor, and interlocking armor is inseparabler than traditional double-deck steel strip around package armor structure, and the leakproofness is good, and no leakage package can prevent effectively that flame from moving, improves flame retardant property. Furthermore, the utility model discloses environment-friendly B1 level high performance flame retarded cable has set up the high flame retardant restrictive coating in the outside, and it has good physical and mechanical properties, especially has good flame retardant properties, and release heat is few during the burning, the fuming volume is little, there is not the drippage, leave flame and do not prolong fire, nontoxic environmental protection, can effectively fire-retardant and can not cause secondary harm.
For further improvement the utility model discloses environment-friendly B1 level high performance flame retarded cable's fire behavior, the utility model discloses environment-friendly B1 level high performance flame retarded cable twines low smoke and zero halogen flame retardant tape winding layer in the cable bundle outside, and extrusion separates the interior sheath of oxygen again. The low-smoke halogen-free flame-retardant belt is a belt-shaped material prepared from a low-smoke halogen-free material; the low-smoke halogen-free material is a polyolefin cable material which is prepared by taking ethylene-vinyl acetate copolymer EVA and polyoxyethylene POE as main base materials, adding an inorganic flame retardant, a lubricant and an antioxidant, and performing precise mixing processing.
For further improvement the utility model discloses environment-friendly B1 level high performance flame retarded cable's bulk strength and fire behaviour, the utility model discloses environment-friendly B1 level high performance flame retarded cable twines low smoke and zero halogen flame retardant tape winding layer at interlock galvanized steel strip armor layer outside and extrudes the high flame retardant restrictive coating of follow again. The low-smoke halogen-free flame-retardant belt is a belt-shaped material prepared from a low-smoke halogen-free material; the low-smoke halogen-free material is a polyolefin cable material which is prepared by taking ethylene-vinyl acetate copolymer EVA and polyoxyethylene POE as main base materials, adding an inorganic flame retardant, a lubricant and an antioxidant, and performing precise mixing processing. In order to ensure the strength and the flame retardant property, the number of the winding layers of the low-smoke halogen-free flame retardant belt wound on the outer side of the interlocking galvanized steel strip armor layer is 3. The low-smoke halogen-free flame-retardant tape winding layer is wound on the outer side of the interlocked galvanized steel strip armor layer, and the extrusion molding high-flame-retardant sheath layer has the main functions of: 1. external heat is prevented from being transferred to the steel tape armor layer, and the cable insulating layer is effectively protected; 2. prevent that the outer jacket from caving in the armor, prevent outer jacket and armor adhesion, the outer jacket overstretch when effectively preventing the cable bending ftractures, consequently, the fire behaviour and the outer life of product can further be improved to this structure.
Obviously, the utility model discloses environment-friendly B1 level high performance flame retarded cable's beneficial technological effect has optimized cable structure, has improved fire behaviour and life, can not cause secondary harm, and the material that adopts is inorganic does not contain halogen.
Claims (4)
1. An environment-friendly B1-grade high-performance flame-retardant cable is characterized by comprising a cable bundle consisting of a plurality of closely arranged cables side by side, wherein each cable consists of a plurality of leads and an insulating layer wrapped outside the leads; the cable is filled with flame retardant, an oxygen-isolating inner protective layer is arranged on the outer side of the cable bundle, an interlocking galvanized steel strip armor layer is arranged on the outer side of the oxygen-isolating inner protective layer, and a high-flame-retardant sheath layer is arranged on the outer side of the interlocking galvanized steel strip armor layer; the oxygen-isolating inner protection layer is a sleeve-shaped isolation layer which is made of low-smoke halogen-free materials and extruded and formed on the outer side of the cable bundle; the interlocking galvanized steel strip armor layer is a mutual buckling structure which is made of galvanized steel strips and cannot be pulled apart or generate gaps when being bent and stretched; the high flame-retardant sheath layer is a sheath-shaped protective layer which is made of low-smoke halogen-free materials and is extruded and formed on the outer side of the interlocking galvanized steel strip armor layer.
2. The environment-friendly B1-grade high-performance flame-retardant cable according to claim 1, wherein the oxygen-insulating inner sheath is extruded after a winding layer of low-smoke halogen-free flame-retardant tape is wound outside the cable bundle.
3. The environment-friendly type B1-grade high-performance flame-retardant cable according to claim 1 or 2, wherein the high-flame-retardant sheath layer is formed by extrusion after a low-smoke halogen-free flame-retardant tape winding layer is wound on the outer side of the interlocked galvanized steel strip armor layer.
4. The environment-friendly type B1-grade high-performance flame-retardant cable according to claim 3, wherein the number of winding layers of the low-smoke halogen-free flame-retardant tape wound outside the interlocked galvanized steel tape armor layer is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922288535.4U CN211858220U (en) | 2019-12-17 | 2019-12-17 | Environment-friendly B1-grade high-performance flame-retardant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922288535.4U CN211858220U (en) | 2019-12-17 | 2019-12-17 | Environment-friendly B1-grade high-performance flame-retardant cable |
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| CN211858220U true CN211858220U (en) | 2020-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035428A (en) * | 2021-02-02 | 2021-06-25 | 安徽铁信光电科技有限公司 | Flame-retardant digital signal cable for rail transit and production process |
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2019
- 2019-12-17 CN CN201922288535.4U patent/CN211858220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035428A (en) * | 2021-02-02 | 2021-06-25 | 安徽铁信光电科技有限公司 | Flame-retardant digital signal cable for rail transit and production process |
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