CN220731201U - Halogen-free low-smoke high-flame-retardance medium-voltage cable for Australian standard - Google Patents
Halogen-free low-smoke high-flame-retardance medium-voltage cable for Australian standard Download PDFInfo
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- CN220731201U CN220731201U CN202320777809.XU CN202320777809U CN220731201U CN 220731201 U CN220731201 U CN 220731201U CN 202320777809 U CN202320777809 U CN 202320777809U CN 220731201 U CN220731201 U CN 220731201U
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- shielding
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- 239000000779 smoke Substances 0.000 title claims abstract description 40
- 239000010410 layer Substances 0.000 claims abstract description 77
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000010949 copper Substances 0.000 claims abstract description 26
- 239000003063 flame retardant Substances 0.000 claims abstract description 26
- 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 23
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- 229920000098 polyolefin Polymers 0.000 claims description 9
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 239000002609 medium Substances 0.000 claims 5
- 239000000945 filler Substances 0.000 claims 1
- 239000007003 mineral medium Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 5
- 239000002341 toxic gas Substances 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract 1
- 239000013589 supplement Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 229910000039 hydrogen halide Inorganic materials 0.000 description 2
- 239000012433 hydrogen halide Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a halogen-free low-smoke high-flame-retardance medium-voltage cable for an Australian standard, which comprises a cable main body, wherein the cable main body sequentially comprises a composite cable core, a cable core wrapping layer, an oxygen isolation layer, an armor layer, a fire-proof layer and an outer protective layer from inside to outside, the composite cable core comprises a cable core filling layer and a plurality of shielding wire cores, the shielding wire cores sequentially comprise a conductor, a conductor shielding layer, an insulating layer and an insulating shielding layer from inside to outside, two layers of semi-conductive non-woven fabrics are overlapped and wrapped outside the insulating shielding layer to serve as a buffer layer, shielding copper wires are arranged outside the buffer layer in a sparse winding mode, and a copper strip layer is wrapped outside the shielding copper wires in a reverse gap winding mode. The utility model has excellent flame retardant property, little smoke during combustion, no corrosive gas and toxic gas escape, the fire-fighting equipment is convenient for people to evacuate after firing, and avoids huge loss to national economy and life and property safety of people.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a halogen-free low-smoke high-flame-retardance medium-voltage cable for an Australian standard.
Background
Traditional medium voltage cables for Australian standards often use halogen-containing PVC sheath materials or PE sheath materials with poor flame retardant properties. If the sheath is made of halogen-containing PVC materials, corrosive hydrogen halide gas and toxic smoke are released during combustion, people often suffocate due to smoke curing, and facilities such as instruments and the like are corroded by the hydrogen halide gas; if PE material with poor flame retardant property is used for the sheath, the life safety of people is always seriously threatened. And the traditional medium-voltage cable for the Australian standard has common shielding effect, wear resistance, tensile strength and the like. Therefore, in order to improve the safety performance of the mining cable, the utility model needs to provide a halogen-free low-smoke high-flame-retardance medium-voltage cable for the Australian standard.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the halogen-free low-smoke high-flame-retardance medium voltage cable for the Australian standard, which has excellent flame retardance, little smoke during combustion, no corrosive gas and toxic gas escape, is convenient for people to evacuate after the fire is generated, and avoids huge loss to national economy and life and property safety of people.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a there is not steamed low fire-retardant australia's mark mining middling pressure cable of cigarette height, including the cable main part, the cable main part from interior to exterior be compound cable core, cable core band layer, oxygen barrier, armor, fire barrier and outer sheath in proper order, compound cable core fill and a plurality of shielding sinle silk including the cable core, the shielding sinle silk from interior to exterior be conductor, conductor shielding layer, insulating layer and insulating shielding layer in proper order, insulating shielding layer outside overlap around the package two-layer semi-conductive non-woven fabrics as the buffer layer, this buffer layer is dredged around being provided with shielding copper wire outward, shielding copper wire outside reverse clearance around the package have one deck copper strips.
As a supplement to the technical proposal of the utility model, the conductor adopts oxygen-free copper.
As a supplement to the technical scheme of the utility model, the cable core is filled with a halogen-free low-smoke flame-retardant PP filling rope.
As a supplement to the technical scheme of the utility model, the cable core wrapping tape layer adopts a halogen-free low-smoke flame-retardant tape.
As a supplement to the technical scheme of the utility model, the oxygen-isolating layer adopts halogen-free low-smoke high-flame-retardance polyolefin oxygen-isolating material.
As a supplement to the technical scheme of the utility model, the armor layer is formed by combining tinned copper wires and galvanized low-carbon steel wires, and the tinned copper wires are uniformly distributed.
As a supplement to the technical scheme of the utility model, the fire-resistant layer adopts a halogen-free low-smoke flame-retardant belt.
As a supplement to the technical scheme of the utility model, the outer protective layer adopts halogen-free low-smoke high-flame-retardance polyolefin sheath material.
The beneficial effects are that: the utility model relates to a halogen-free low-smoke high-flame-retardance medium-voltage cable for an Australian standard, which has the following advantages:
1. the buffer layer is made of semiconductor non-woven fabrics, the volume resistivity of the material is adapted to that of the insulating shield, and the copper wire shield layer is prevented from being embedded into the insulating shield layer due to expansion of insulating heat in the running process of the product;
2. the metal shielding layer adopts a combination form of copper wire sparse winding shielding and copper strip gap winding, and is continuous and reliable, less in output heat and good in shielding effect;
3. the halogen-free low-smoke flame-retardant PP filling rope and the halogen-free low-smoke flame-retardant tape are adopted for filling the cable core, so that the heat resistance and the heat conduction capacity of the cable are improved, and the influence of high temperature on the insulated wire core is reduced;
4. the halogen-free low-smoke flame-retardant PP filling rope and the halogen-free low-smoke flame-retardant tape are adopted for filling the cable core, so that the heat resistance and the heat conduction capacity of the cable are improved, and the influence of high temperature on the insulated wire core is reduced;
5. the armor layer adopts a combination form of tinned copper wires and galvanized low-carbon steel wires, so that the current-carrying capacity of the cable can be improved, the corrosion resistance, the wear resistance and the tensile strength of the cable are enhanced, the service life of the cable is prolonged, and the safety of the cable is enhanced;
6. the outer sheath adopts the halogen-free low-smoke high-flame-retardance polyolefin sheath material, and the halogen-free low-smoke high-flame-retardance polyolefin sheath material not only has excellent flame retardance, but also does not contain halogen, does not generate corrosive and toxic gases in the combustion process, and is high in light transmittance, clean and environment-friendly.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The diagram is: 1. the cable comprises a conductor, 2, a conductor shielding layer, 3, an insulating layer, 4, an insulating shielding layer, 5, a buffer layer, 6, a shielding copper wire, 7, a copper strip, 8, a cable core filling layer, 9, a cable core wrapping layer, 10, an oxygen isolation layer, 11, an armor layer, 12, a fire isolation layer, 13 and an outer protective layer.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
The embodiment of the utility model relates to a halogen-free low-smoke high-flame-retardance medium-voltage cable for an Australian standard, which is shown in fig. 1 and comprises a cable main body, wherein the cable main body sequentially comprises a composite cable core, a cable core wrapping belt layer 9, an oxygen isolation layer 10, an armor layer 11, a fire isolation layer 12 and an outer protective layer 13 from inside to outside, the composite cable core comprises a cable core filling 8 and three shielding wire cores, the shielding wire cores sequentially comprise a conductor 1, a conductor shielding layer 2, an insulating layer 3 and an insulating shielding layer 4 from inside to outside, the insulating shielding layer 4 is externally overlapped and wrapped with two layers of semi-conductive non-woven fabrics as a buffer layer 5, shielding copper wires 6 are externally and alternately wound and provided with a layer of copper strips 7 in a reverse gap manner outside the shielding copper wires 6; the metal shielding layer adopts a combination mode of shielding copper wires 6, sparse winding shielding and copper strips 7, and has the advantages of continuity, reliability, less output heat and good shielding effect.
The buffer layer 5 is made of semiconductor non-woven fabrics, the volume resistivity of the material is adapted to that of the insulating shield, and the copper wire shield layer is prevented from being embedded into the insulating shield layer due to expansion of insulating heat in the product operation process.
The conductor 1 is made of oxygen-free copper.
The cable core filling 8 adopts a halogen-free low-smoke flame-retardant PP filling rope and the cable core wrapping tape layer 9 adopts a halogen-free low-smoke flame-retardant tape, so that the heat resistance and the heat conduction capacity of the cable are improved, and the influence of high temperature on an insulating wire core is reduced.
The oxygen-insulating layer 10 is made of halogen-free low-smoke high-flame-retardance polyolefin oxygen-insulating material, the oxygen-insulating layer 10 gradually releases crystal water at high temperature to reduce the temperature of a fire point, and the oxygen-insulating layer can be carbonized and crusted in the combustion process, so that the buffer and heat insulation effects are achieved, and the overall flame retardance of the cable is improved.
The armor layer 11 is formed by combining tinned copper wires and galvanized low-carbon steel wires, and the tinned copper wires are uniformly distributed; the armor layer 11 adopts the combination form of tinned copper wires and galvanized low-carbon steel wires, so that the current-carrying capacity of the cable can be improved, the corrosion resistance, the wear resistance and the tensile strength of the cable are enhanced, the service life of the cable is prolonged, and the safety of the cable is enhanced.
The fire-resistant layer 12 adopts a halogen-free low-smoke flame-retardant belt.
The outer protective layer 13 adopts halogen-free low-smoke high-flame-retardance polyolefin sheath material, and the halogen-free low-smoke high-flame-retardance polyolefin sheath material has excellent flame retardance, does not contain halogen, does not generate corrosive and toxic gases in the combustion process, and is high in light transmittance, clean and environment-friendly.
Test results and judgment of the utility model:
the research and development product meets the specifications of AS/NZS1972:2006, AS/NZS1429.1:2006, IEC 60332-3-22:2018, IEC 60754-1:2019, IEC 60754-2:2019, IEC 60684-2:2011, IEC 61034-2:2019, AS/NZS 1660.5.6:2005 and other standards, and the specific requirements are AS follows:
1. the copper wire shielding combined conductance of the three-core cable, expressed as a percentage of the minimum allowable conductance of an associated power conductor, should be no less than 50%;
2. the metal wire armor adopts a combination form of tinned copper wires and galvanized low-carbon steel wires with the same nominal diameter of monofilaments, and the copper wires are uniformly distributed; the armoured conductance, expressed as a percentage of the minimum allowable conductance of an associated power conductor, should be not less than 50%;
3. the cable bundling flame-retardant A performance is met;
4. the cable vertical flame spread test is satisfied;
5. the PH value is more than or equal to 4.3;
6. conductivity is less than or equal to 10 mu S/mm;
7. fluorine content test is less than or equal to 0.1%;
8. the acid gas content test is less than or equal to 0.5 percent;
9. the minimum light transmittance is more than or equal to 60 percent.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The foregoing has described in detail a halogen-free low smoke, high flame retardant medium voltage cable for australia standard provided by the present application, and specific examples have been used herein to illustrate the principles and embodiments of the present application, the above examples being for the purpose of aiding in the understanding of the method of the present application and its core concept; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. The utility model provides a there is not steamed low fire-retardant australia's mark of cigarette with high fire-retardant for mineral medium voltage cable, includes cable main part, its characterized in that: the cable is characterized in that the cable body sequentially comprises a composite cable core, a cable core wrapping belt layer (9), an oxygen isolation layer (10), an armor layer (11), a fire isolation layer (12) and an outer protective layer (13) from inside to outside, the composite cable core comprises a cable core filler (8) and a plurality of shielding wire cores, the shielding wire cores sequentially comprise a conductor (1), a conductor shielding layer (2), an insulating layer (3) and an insulating shielding layer (4) from inside to outside, the insulating shielding layer (4) is externally overlapped and wrapped with two layers of semi-conductive non-woven fabrics to serve as a buffer layer (5), shielding copper wires (6) are externally and loosely wrapped with the buffer layer (5), and a layer of copper strips (7) are externally and reversely wound in a gap manner; the cable core filling (8) adopts a halogen-free low-smoke flame-retardant PP filling rope; the cable core wrapping band layer (9) adopts a halogen-free low-smoke flame-retardant band.
2. The medium voltage cable for halogen-free low smoke high flame retardant australian standard of claim 1, wherein: the conductor (1) adopts oxygen-free copper.
3. The medium voltage cable for halogen-free low smoke high flame retardant australian standard of claim 1, wherein: the oxygen-isolating layer (10) adopts halogen-free low-smoke high-flame-retardance polyolefin oxygen-isolating material.
4. The medium voltage cable for halogen-free low smoke high flame retardant australian standard of claim 1, wherein: the armor layer (11) is formed by combining tin-plated copper wires and zinc-plated low-carbon steel wires, and the tin-plated copper wires are uniformly distributed.
5. The medium voltage cable for halogen-free low smoke high flame retardant australian standard of claim 1, wherein: the fire-proof layer (12) adopts a halogen-free low-smoke flame-retardant belt.
6. The medium voltage cable for halogen-free low smoke high flame retardant australian standard of claim 1, wherein: the outer protective layer (13) adopts halogen-free low-smoke high-flame-retardance polyolefin sheath material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320777809.XU CN220731201U (en) | 2023-04-11 | 2023-04-11 | Halogen-free low-smoke high-flame-retardance medium-voltage cable for Australian standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320777809.XU CN220731201U (en) | 2023-04-11 | 2023-04-11 | Halogen-free low-smoke high-flame-retardance medium-voltage cable for Australian standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220731201U true CN220731201U (en) | 2024-04-05 |
Family
ID=90486276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320777809.XU Active CN220731201U (en) | 2023-04-11 | 2023-04-11 | Halogen-free low-smoke high-flame-retardance medium-voltage cable for Australian standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220731201U (en) |
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2023
- 2023-04-11 CN CN202320777809.XU patent/CN220731201U/en active Active
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