CN220137996U - Fire-resistant B1-level cable - Google Patents
Fire-resistant B1-level cable Download PDFInfo
- Publication number
- CN220137996U CN220137996U CN202321386141.2U CN202321386141U CN220137996U CN 220137996 U CN220137996 U CN 220137996U CN 202321386141 U CN202321386141 U CN 202321386141U CN 220137996 U CN220137996 U CN 220137996U
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- CN
- China
- Prior art keywords
- layer
- retardant
- flame
- fire
- cable
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 47
- 239000003063 flame retardant Substances 0.000 claims abstract description 34
- 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 31
- 229920000098 polyolefin Polymers 0.000 claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 239000010445 mica Substances 0.000 claims abstract description 9
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
Abstract
The fire-resistant B1-level cable relates to the technical field of cables, and comprises a cable core, a fire-resistant wrapping belt, a fire-resistant inner protective layer, a waterproof layer, an ultraviolet-proof layer and a polyolefin low-smoke halogen-free fire-resistant B1-level sheath which are sequentially arranged from inside to outside; the cable core comprises a plurality of wire cores which are stranded mutually, wherein each wire core comprises a copper conductor, a double-layer mica tape and a polyolefin low-smoke halogen-free flame-retardant B1-level insulating layer which are sequentially arranged from inside to outside. The utility model has high flame-retardant, waterproof and ultraviolet-proof performances.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a fire-resistant cable.
Background
The cable is typically a rope-like cable stranded from several wires or groups of wires (at least two in each group), each group being insulated from each other and often twisted around a center, with a highly insulating coating over the entire outer surface. The cable has an inner energized, outer insulated feature. The cables include power cables, control cables, compensation cables, shield cables, high temperature cables, computer cables, signal cables, coaxial cables, fire resistant cables, marine cables, mining cables, aluminum alloy cables, and the like. They are composed of single or multi-strand wires and insulating layers for connecting circuits, appliances, etc.
The cable in the current market generally has the defects of poor fire-resistant insulating property and unreliable fire-resistant property, can not ensure that the circuit continuously and stably runs for a certain time under the flame condition, has limited loss reduction caused by fire, has low mechanical strength, and has poor waterproof and ultraviolet-proof properties, thus influencing the service life of the cable.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a fire-resistant B1-level cable with high flame retardance, water resistance and ultraviolet resistance.
The purpose of the utility model is realized in the following way: the fire-resistant B1-level cable comprises a cable core, a fire-retardant wrapping tape, a fire-retardant inner protective layer, a waterproof layer, an ultraviolet-proof layer and a polyolefin low-smoke halogen-free fire-retardant B1-level sheath which are sequentially arranged from inside to outside; the cable core comprises a plurality of wire cores which are stranded mutually, wherein each wire core comprises a copper conductor, a double-layer mica tape and a polyolefin low-smoke halogen-free flame-retardant B1-level insulating layer which are sequentially arranged from inside to outside.
Preferably, the waterproof layer adopts a PE waterproof film.
Preferably, the cable core further comprises a filling layer, and the cable core is formed by twisting a plurality of wire cores and the filling layer.
Preferably, the number of the wire cores is five.
The beneficial effects of the utility model are as follows:
1. the low smoke zero halogen flame retardant B1-level insulating layer of polyolefin, the flame retardant wrapping tape, the flame retardant inner protective layer and the low smoke zero halogen flame retardant B1-level sheath of polyolefin are adopted, so that the cable completely ensures the environmental protection and fire prevention requirements of building requirements, and can prevent flame from spreading, and the flame is burnt and disaster is enlarged.
2. The insulating layer and the sheath layer are made of polyolefin low-smoke halogen-free flame-retardant B1-level materials, so that the flame-retardant cable has good mechanical properties, ensures that the product does not contain halogen, solves the problem of secondary pollution in the combustion process, and avoids the traditional electric wires and materials which generate cancerogenic dioxins in the combustion process. Low toxin: harmful heavy metals such as lead, cadmium and the like in the insulating and protecting sleeve materials can not cause serious pollution to soil and water when a fire disaster occurs. Excellent flame retardance and fire resistance, high crusting speed, very hard and tight crusting, capability of vertical self-extinguishing, no melting, no dripping and no falling under the conditions of flame and no flame at 350-1400 ℃, and no secondary fire disaster; in the combustion process, the ceramic armor body after firing at higher temperature and longer time is harder, and the ceramic armor body can completely match the fire resistance and combustion performance requirement indexes of the traditional fireproof oxygen-insulating layer material, and the heat value release quantity meets the design requirement.
3. The ultraviolet-proof layer is adopted, so that the cable has a good ultraviolet-proof function, ultraviolet rays are effectively reflected and shielded, and the service life is prolonged.
4. The PE waterproof film can prevent moisture from invading the inside of the insulation, and avoid insulation failure.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
As shown in fig. 1 to fig. 1, the fire-resistant B1-stage cable comprises five wire cores 11 and a filling layer 12, wherein the wire cores 11 comprise a copper conductor 111, a double-layer mica tape 112 and a polyolefin low-smoke halogen-free flame-retardant B1-stage insulating layer 113 which are sequentially arranged from inside to outside, the double-layer mica tape 112 is wound on the copper conductor 111, and the polyolefin low-smoke halogen-free flame-retardant B1-stage insulating layer 113 is extruded on the double-layer mica tape 112. Five wire cores 11 and a filling layer 12 are stranded to form the cable core 1, and the filling layer 12 ensures the roundness of the cable core 1. The cable core 1 is externally wrapped with a flame-retardant wrapping tape 2, the flame-retardant wrapping tape 2 is externally wrapped with a flame-retardant inner protective layer 3 in an extrusion mode, the flame-retardant inner protective layer 3 is wrapped with a waterproof layer 4, the waterproof layer 4 is made of a PE waterproof film, the waterproof layer 4 is coated with an ultraviolet-proof layer 5, and the ultraviolet-proof layer 5 is externally wrapped with a polyolefin low-smoke halogen-free flame-retardant B1-level sheath 6.
The copper conductor 111 is stable and reliable in electric energy transmission, the double-layer mica tape 112 is made of a fireproof insulating material, and the polyolefin low-smoke halogen-free flame-retardant B1-level insulating layer 113, the flame-retardant wrapping tape 2, the flame-retardant inner protective layer 3 and the polyolefin low-smoke halogen-free flame-retardant B1-level sheath 6 have high flame-retardant performance. The PE waterproof film can prevent moisture from invading the inside of the insulation, and avoid insulation failure. The ultraviolet-proof layer 5 effectively reflects and shields ultraviolet rays.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (4)
1. Fire-resistant B1 level cable, characterized by: the cable comprises a cable core, a flame-retardant wrapping belt, a flame-retardant inner protective layer, a waterproof layer, an ultraviolet-proof layer and a polyolefin low-smoke halogen-free flame-retardant B1-level sheath which are sequentially arranged from inside to outside; the flame-retardant wrapping tape is wound on the cable core, the flame-retardant inner protective layer is extruded on the flame-retardant wrapping tape, the waterproof layer is wound on the flame-retardant inner protective layer, the ultraviolet-proof layer is coated on the waterproof layer, and the polyolefin low-smoke halogen-free flame-retardant B1-level sheath is extruded on the ultraviolet-proof layer; the cable core comprises a plurality of wire cores which are stranded mutually, wherein each wire core comprises a copper conductor, a double-layer mica tape and a polyolefin low-smoke halogen-free flame-retardant B1-level insulating layer which are sequentially arranged from inside to outside, the double-layer mica tape is wound on the copper conductor, and the polyolefin low-smoke halogen-free flame-retardant B1-level insulating layer is extruded on the double-layer mica tape.
2. The fire resistant B1 stage cable according to claim 1, characterized in that: the waterproof layer adopts a PE waterproof film.
3. The fire resistant B1 stage cable according to claim 1, characterized in that: the cable core further comprises a filling layer, and the cable core is formed by twisting a plurality of wire cores and the filling layer.
4. A fire resistant B1 grade cable according to claim 3, characterized in that: five wire cores are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386141.2U CN220137996U (en) | 2023-06-02 | 2023-06-02 | Fire-resistant B1-level cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386141.2U CN220137996U (en) | 2023-06-02 | 2023-06-02 | Fire-resistant B1-level cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220137996U true CN220137996U (en) | 2023-12-05 |
Family
ID=88959736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321386141.2U Active CN220137996U (en) | 2023-06-02 | 2023-06-02 | Fire-resistant B1-level cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220137996U (en) |
-
2023
- 2023-06-02 CN CN202321386141.2U patent/CN220137996U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |