CN217280177U - B1-level power cable - Google Patents
B1-level power cable Download PDFInfo
- Publication number
- CN217280177U CN217280177U CN202220740997.4U CN202220740997U CN217280177U CN 217280177 U CN217280177 U CN 217280177U CN 202220740997 U CN202220740997 U CN 202220740997U CN 217280177 U CN217280177 U CN 217280177U
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- layer
- wire core
- insulating layer
- wire
- power cable
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- 239000010410 layer Substances 0.000 claims abstract description 82
- 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 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002390 adhesive tape Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000011253 protective coating Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 239000004114 Ammonium polyphosphate Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 2
- 229920001276 ammonium polyphosphate Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 150000004820 halides Chemical group 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910021487 silica fume Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a B1-grade power cable, which comprises a sheath, a wire core unit and a glass fiber rope, wherein the wire core unit and the glass fiber rope are arranged in the sheath; the number of the wire core units is three; the wire core units are provided with splicing angles, glass fiber ropes are arranged on the outer sides of the wire core units, and the glass fiber ropes are positioned between the adjacent wire core units; filling an outer protective layer in the sheath; the outer protective layer wraps the high-temperature filling rope and the wire core units; the wire core unit comprises a wire body, an inner insulating layer wrapped on the wire body and an aluminum foil layer wrapped outside the inner insulating layer, and a ceramic silicon adhesive tape layer is wound on the surface of the inner insulating layer; a flame-retardant layer is arranged between the inner insulating layer and the outer insulating layer. The utility model relates to a novelty improves ingeniously, to the improvement of sinle silk unit, and contact surface stability is strong between adjacent, is favorable to laying of electric wire, can not take place the roll phenomenon, and its flame retardant efficiency of new structure is good, has better shielding effect.
Description
Technical Field
The utility model relates to a wire and cable technical field, concretely relates to B1 level power cable.
Background
The rapid development of the society, especially the requirement for the fire prevention of the open architecture design and the requirement for the high standard of the fire prevention of the open architecture, in order to prevent the fire spreading, the electric wires with corresponding burning grade are selected according to the electrical design specification of the civil architecture and the use characteristics of the architecture, and the insulation and sheath materials of the common power cable in the prior art are generally polyvinyl chloride, cross-linked polyolefin and the like. Generally, several circular cable cores are arranged in the power cable, such as "medium and high frequency power cable" applied by shanghai jinfeng cable limited in 12.4.2017, and "special power flexible cable" applied by shenyang sinking cable silver ring enterprise group limited in 18.2014; in 19.10.2018, the invention is specially applied to a flame-retardant B1 type fire-resistant low-smoke halogen-free crosslinked polyethylene cable and a production method thereof, which are applied by Mingzhu Cable Limited company in Wuxi city, the peripheral protective layer of the designed cable core is circular, the adjacent cable cores have poor stability, and are easy to twist/rotate.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned prior art problem, the utility model provides a B1 level power cable can improve more than not enough.
The utility model relates to a B1-grade power cable, which comprises a sheath, a wire core unit and a glass fiber rope, wherein the wire core unit and the glass fiber rope are arranged in the sheath; the number of the wire core units is three; the wire core units are provided with splicing corners, the splicing corners are convex outwards, and the wire core units are closely adjacent to each other through the splicing corners; the glass fiber rope is arranged on the outer side of each wire core unit and is formed by twisting a plurality of strands of glass fiber monofilaments, and the glass fiber rope is positioned between the adjacent wire core units; the glass fiber ropes are spaced or contacted with the wire core units; filling an outer protective layer in the sheath; the outer protective layer wraps the high-temperature filling rope and the wire core units; the wire core unit comprises a wire body, an inner insulating layer wrapped on the wire body and an aluminum foil layer wrapped outside the inner insulating layer and provided with a protective coating, wherein dents are arranged on two sides of the aluminum foil layer, and a nano silver powder or graphene coating is arranged on the aluminum foil layer and is 0.2-0.5 um thick; an outer insulating layer is arranged outside the aluminum foil layer; the surface of the inner insulating layer is wound with a ceramic silicon adhesive tape layer, and the inner side of the wound ceramic silicon adhesive tape layer is of a sawtooth structure; the design is favorable to increasing crowded package inner insulating layer adhesive force for the sawtooth structure and increases internal stability, set up fire-retardant layer between inner insulating layer and the outer insulating layer, fire-retardant layer is located the aluminium foil layer outside.
Further, the angle of the splicing angle is 120 °.
Regarding the structure of the conductor, in consideration of the problem of water resistance, the conductor is a copper wire, water-resistant yarns are uniformly arranged on the outer side of the conductor, and the water-resistant yarns resist water continuously and can effectively resist water from longitudinally soaking the conductor.
Furthermore, the wire body is a polygonal or circular copper wire.
Furthermore, the copper wire is a cathode copper wire.
Furthermore, the inner insulating layer is halogen-free flame-retardant crosslinked polyethylene, has excellent mechanical and physical properties, good environmental stress cracking resistance and strong wear resistance, can bear concentrated mechanical stress compared with PVC and PE, belongs to a nonflammable low-smoke halogen-free material, and has a flame retardant grade reaching grade B1.
Furthermore, the outer insulating layer is made of flame-retardant silicon rubber insulating material, can be ethylene propylene diene monomer insulating material, and is internally mixed with antimony trioxide and decabromodiphenyl oxide in order to improve the oxygen index.
Regarding the design of the flame retardant layer, in one case, the flame retardant layer is made of epoxy resin flame retardant materials, wherein the flame retardant is halide, phosphide, hydrated alumina, calcium aluminate, ammonium polyphosphate and the like, and the flame retardant grade can reach B1.
In another case, the flame-retardant layer adopts a composite structure of a ceramic polyolefin material and refractory mortar, and the flame-retardant level of the refractory mortar can reach B1 level due to the composition of quartz, kaolin, graphite condensed silica fume isocyanuric acid, triglycidyl ether and talcum powder.
Furthermore, a shielding layer is arranged on the inner side of the outer protection layer, a steel strip is selected as the shielding layer, and the magnetic conductivity coefficient of the steel material is high, so that the shielding effect is good.
The utility model relates to a novelty improves ingeniously, to the improvement of sinle silk unit, and contact surface stability is strong between adjacent, is favorable to laying of electric wire, can not take place the roll phenomenon, and its flame retardant efficiency of new structure is good, has better shielding effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of an inter-layer structure.
The figure is as follows: 1 sinle silk unit, 2 internal insulation layers, 21 protective coating, 22 aluminium foil layer, 3 conductor bodies, 4 silicon ceramic adhesive tape layers, 5 concatenation angles, 6 external insulation layers, 7 glass fiber rope, 8 external protection layers, 9 sheaths, 10 shielding layers, 11 fire-retardant layers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model relates to a B1-grade power cable, which comprises a sheath 9, a wire core unit 1 and a glass fiber rope 7, wherein the wire core unit 1 and the glass fiber rope are arranged in the sheath; the number of the wire core units 1 is three; the wire core unit is provided with a splicing angle 5, the splicing angle protrudes outwards, and the angle of the splicing angle 5 is 120 degrees. The three core units are closely adjacent to each other through splicing angles; due to the existence of the splicing angle, the stability of the wire core units can be ensured, dislocation or twisting can not occur in the extrusion process, the glass fiber rope 7 is arranged on the outer side of each wire core unit 1, and the glass fiber rope is positioned between adjacent wire core units; the glass fiber rope keeps interval or contact with the wire core unit; filling an outer protective layer 8 in the sheath; the outer protective layer wraps the high-temperature filling rope and the wire core units; the wire core unit 1 comprises a wire body 3, an inner insulating layer 2 wrapped on the wire body 3 and an aluminum foil layer 21 wrapped with a protective coating 22 outside the inner insulating layer, wherein dents are arranged on two sides of the aluminum foil layer, a nano silver powder or graphene coating is arranged on the aluminum foil layer, and an outer insulating layer 6 is arranged outside the aluminum foil layer; the surface of the inner insulating layer is wound with a ceramic silicon adhesive tape layer 4, and the inner side of the wound ceramic silicon adhesive tape layer 4 is of a sawtooth structure; the design is favorable to increasing crowded package inner insulating layer adhesive force for the sawtooth structure and increases internal stability, set up fire-retardant layer 11 between inner insulating layer and the outer insulating layer, fire-retardant level is in the aluminium foil layer outside.
Regarding the structure of the conductor 3, in consideration of the problem of water resistance, the conductor 3 is a copper wire, and water-resistant yarns are uniformly arranged on the outer side of the copper wire, and the water-resistant yarns resist water continuously and can effectively resist water from being soaked along the longitudinal direction of the conductor.
As an alternative design, the conducting wire is a polygonal or circular copper wire.
As a design improvement, the copper wire in the two designs is a cathode copper wire.
As a technical improvement, the inner insulating layer 2 is made of halogen-free flame-retardant cross-linked polyethylene, has excellent mechanical and physical properties, good environmental stress cracking resistance and strong wear resistance, can bear concentrated mechanical stress compared with PVC and PE, belongs to a nonflammable low-smoke halogen-free material, and has a flame retardant grade reaching B1 grade.
As a technical improvement, the outer insulating layer is made of flame-retardant silicon rubber insulating material, can be ethylene propylene diene monomer insulating material, and is internally mixed with antimony trioxide and decabromodiphenyl oxide in order to improve the oxygen index.
Regarding the flame retardant layer, it is designed that, in one case, the flame retardant layer employs an epoxy resin flame retardant material, wherein the flame retardant may be halide, phosphide, hydrated alumina, calcium aluminate, ammonium polyphosphate, and the like.
In another case, the flame-retardant layer 6 adopts a composite structure of a ceramic polyolefin material and refractory mortar, and the flame-retardant level of the refractory mortar can reach B1 level due to the composition of quartz, kaolin, graphite condensed silica fume isocyanuric acid, triglycidyl ether and talcum powder.
As a technical improvement, the inner side of the outer protection layer 8 is provided with a shielding layer 10, the shielding layer is made of a steel strip, and the magnetic conductivity coefficient of the steel material is high, so that the shielding effect is good.
As a technical improvement, the aluminum foil layer can be designed to be formed by tinned wire weaving, so that the cable has good electromagnetic interference resistance.
The scheme improves the internal structure of the B1-grade power cable in the prior art, improves the improved design of the wire core units, increases the stability between the wire core units and avoids the phenomenon of twisting/rotating.
Claims (10)
1. A class B1 power cable, comprising: the sheath is wrapped, and the wire core unit and the glass fiber rope are arranged in the sheath; the number of the wire core units is three; the wire core units are provided with splicing angles which are convex outwards, and the wire core units are closely adjacent to each other through the splicing angles; arranging a glass fiber rope outside the wire core units, wherein the glass fiber rope is positioned between the adjacent wire core units; the glass fiber rope keeps interval or contact with the wire core unit; filling an outer protective layer in the sheath; the outer protective layer wraps the high-temperature filling rope and the wire core units; the wire core unit comprises a wire body, an inner insulating layer wrapped on the wire body and an aluminum foil layer wrapped outside the inner insulating layer and provided with a protective coating, and dents are arranged on two sides of the aluminum foil layer; an outer insulating layer is arranged outside the aluminum foil layer; the surface of the inner insulating layer is wound with a ceramic silicon adhesive tape layer, and the inner side of the wound ceramic silicon adhesive tape layer is of a sawtooth structure; and a flame-retardant layer is arranged between the inner insulating layer and the outer insulating layer and is positioned on the outer side of the aluminum foil layer.
2. The class B1 power cable of claim 1, wherein: the angle of the splicing angle is 120 °.
3. The class B1 power cable of claim 1, wherein: the conductor body is a copper wire, and water-blocking yarns are uniformly arranged on the outer side of the conductor body.
4. The class B1 power cable of claim 1, wherein: the wire body is a polygonal or circular copper wire.
5. A class B1 power cable according to claim 3 or 4, wherein: the copper wire is a cathode copper wire.
6. The class B1 power cable of claim 1, wherein: the inner insulating layer is made of halogen-free flame-retardant cross-linked polyethylene.
7. The class B1 power cable of claim 1, wherein: the outer insulating layer is made of flame-retardant silicon rubber insulating material.
8. The class B1 power cable of claim 1, wherein: the flame-retardant layer is made of an epoxy resin flame-retardant material.
9. The class B1 power cable of claim 1, wherein: the flame-retardant layer is of a composite structure of a ceramic polyolefin material and refractory mortar.
10. The class B1 power cable of claim 1, wherein: and a shielding layer is arranged on the inner side of the outer protection layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220740997.4U CN217280177U (en) | 2022-04-01 | 2022-04-01 | B1-level power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220740997.4U CN217280177U (en) | 2022-04-01 | 2022-04-01 | B1-level power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280177U true CN217280177U (en) | 2022-08-23 |
Family
ID=82873148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220740997.4U Active CN217280177U (en) | 2022-04-01 | 2022-04-01 | B1-level power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280177U (en) |
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2022
- 2022-04-01 CN CN202220740997.4U patent/CN217280177U/en active Active
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