CN118553473B - Fire-resistant cable - Google Patents
Fire-resistant cable Download PDFInfo
- Publication number
- CN118553473B CN118553473B CN202411020583.4A CN202411020583A CN118553473B CN 118553473 B CN118553473 B CN 118553473B CN 202411020583 A CN202411020583 A CN 202411020583A CN 118553473 B CN118553473 B CN 118553473B
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- CN
- China
- Prior art keywords
- cable
- cable main
- fire
- main part
- insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 24
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 30
- 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 description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- 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
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of cables, and discloses a fire-resistant cable which comprises an insulating sleeve, wherein an opening is formed in the outer side of the insulating sleeve, a grid is fixed in the opening, and the insulating sleeve is wrapped on the outer sides of a first cable main body and a second cable main body. This fire-resistant cable uses through the mutually supporting of insulating cover, the opening, the grid, first cable main part, the second cable main part, fire-retardant layer, waterproof layer and conducting strip of setting, can reach insulating, fire-retardant fire-resistant, waterproof and radiating purpose, the insulating cover parcel is in the outside of first cable main part and second cable main part, the effect of insulating protection is conveniently played respectively to fire-retardant layer and waterproof layer, the opening has been seted up to the side of insulating cover, the opening internal fixation has the grid, conveniently play ventilation radiating effect, the conducting strip can exert the effect of heat conduction, the heat in first cable main part and the second cable main part can be taken away to the in-process that the wind shuttled in the insulating cover.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a fire-resistant cable.
Background
The cable is similar to a rope in appearance, is formed by twisting a plurality of groups of wires, is mutually insulated, is often twisted around a center, is covered with a high-insulation covering layer, is erected in the air or is installed underground and underwater for telecommunication or power transmission, and has basic safety performance for ensuring the normal and stable operation of the cable.
Through massive search, a cable in the prior art is found to be typical as a cable with a publication number CN105336412A, and comprises a plurality of insulating wire cores, wherein the insulating wire cores are stranded into a cable, each insulating wire core comprises a conductor and an insulating layer, the outer surface of the cable is extruded with an aluminum sleeve, and the stranding pitch of the insulating wire cores is the same as the pitch of the aluminum sleeve. The aluminum sleeve is directly extruded outside the cable, so that the consumption of filling materials is reduced, the outer diameter of the aluminum sleeve is reduced, the consumption of materials is reduced, the length of the aluminum sleeve is the length of the cable, the linear resistance is small, the contact between the aluminum sleeve and a cable core of the cable is changed into an arc surface from a linear shape, the aluminum sleeve is not isolated by air, the heat dissipation effect is greatly improved, and the current carrying capacity of the aluminum sleeve is also enhanced.
After massive search, the cable in the prior art is found to be typical as a publication number CN105575523B, and the moistureproof cable comprises a conductor core, wherein an insulating protective layer is wrapped outside the conductor core; a blocking layer is wrapped outside the insulating protective layer, and the blocking layer is made of an elastic material; a moisture-proof pipe is wrapped outside the blocking layer, and an outer protective layer with a water-proof function is wrapped outside the moisture-proof pipe; the moistureproof pipe is made of porous water-absorbing expansion materials; negative pressure pipes are arranged in the pipe wall of the dampproof pipe at equal intervals along the axial direction of the dampproof pipe, and capillary holes are formed in the pipe wall of the negative pressure pipes; an extraction valve is also connected to the negative pressure pipe, and the extraction valve extends out of the outer protective layer; the moistureproof cable has the advantages of light weight, exquisite structure, good moistureproof effect and convenience for later maintenance.
The fire-resistant and waterproof effect of current cable is general, and at the in-process that uses the cable, when its temperature reaches a definite value, must cool down to handle it, otherwise continuously intensifies and can lead to generating heat the fire, and then leads to the cable to burn out, and the safety protection effect is poor, to above-mentioned problem, needs to improve current equipment.
Disclosure of Invention
The invention aims to provide a fire-resistant cable, which solves the problems that the fire resistance and the waterproof effect of the existing cable proposed in the background art are common, and when the temperature of the cable reaches a certain value in the process of using the cable, the cable must be cooled, otherwise, the cable is burnt out due to continuous heating, and the safety protection effect is poor.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a fire-resistant cable, includes insulating cover, the opening has been seted up to the outside of insulating cover, the opening internal fixation has the grid, insulating cover parcel is in the outside of first cable main part and second cable main part.
Preferably, the grids are steel members and are circumferentially uniformly distributed on the insulating sleeve.
By adopting the technical scheme, the grid hardness of the steel member is high and relatively firm.
Preferably, six second cable bodies are arranged, and the six second cable bodies are circumferentially and uniformly distributed in the insulating sleeve.
By adopting the technical scheme, six second cable main bodies which are uniformly distributed in the circumferential direction are orderly distributed.
Preferably, the outer side of the first cable main body and the outer side of the second cable main body are both fixed with flame-retardant layers, and the flame-retardant layers are PVC (polyvinyl chloride) flame-retardant fuels.
By adopting the technical scheme, the flame-retardant layer can play a role in flame retardance and fire resistance.
Preferably, the waterproof layer is fixed with in the outside of fire-retardant layer, and the waterproof layer is polyvinyl chloride material, first cable main part and second cable main part are all connected with insulating cover through the connecting block.
Through adopting above-mentioned technical scheme, waterproof layer can play waterproof effect, and the connecting block can be with first cable main part and second cable main part fixed connection on insulating cover.
Preferably, the heat conducting fins are fixed on the outer side of the first cable main body and the outer side of the second cable main body, and the connecting block and the heat conducting fins penetrate through the flame retardant layer and the waterproof layer.
Through adopting above-mentioned technical scheme, the effect of heat conduction can be played to the conducting strip, and the wind can take away the heat on first cable main part and the second cable main part in the in-process that shuttles back and forth in the insulating cover.
Compared with the prior art, the invention has the beneficial effects that:
According to the fire-resistant cable, through the mutual matching of the insulation sleeve, the first cable main body, the second cable main body, the flame-retardant layer and the waterproof layer, the purposes of insulation, flame retardance, fire resistance and water resistance can be achieved, the insulation sleeve is wrapped on the outer sides of the first cable main body and the second cable main body, the insulation protection effect is conveniently achieved, and the flame-retardant layer and the waterproof layer can respectively play roles of flame retardance, fire resistance and water resistance;
2. This fire-resistant cable uses through the insulating cover, opening, grid, first cable main part, second cable main part and the heat conducting strip that set up mutually support, can reach radiating purpose, and the opening has been seted up to the side of insulating cover, and the opening internal fixation has the grid, conveniently plays ventilation radiating effect, and the heat conducting strip can exert heat conduction's effect, and the wind can take away the heat in first cable main part and the second cable main part in the in-process that shuttles back and forth in insulating cover, conveniently reaches radiating effect.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the present invention;
FIG. 2 is a schematic diagram of the front view of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
Fig. 4 is a schematic view of the connection structure of the first cable body, the connection block and the heat conductive sheet of the present invention.
In the figure: 1. an insulating sleeve; 2. an opening; 3. a grid; 4. a first cable body; 5. a second cable body; 6. a flame retardant layer; 7. a waterproof layer; 8. a connecting block; 9. and a heat conductive sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a fire-resistant cable, includes insulating cover 1, and opening 2 has been seted up in the outside of insulating cover 1, and opening 2 internal fixation has grid 3, and insulating cover 1 parcel is in the outside of first cable main part 4 and second cable main part 5.
In this embodiment, as shown in fig. 1 and 3, the grids 3 are steel members, and the grids 3 are circumferentially and uniformly distributed on the insulating sleeve 1, so that the grids 3 can play a role in ventilation and heat dissipation, and the grids 3 circumferentially and uniformly distributed can make the ventilation and heat dissipation effect more uniform.
In this embodiment, as shown in fig. 1 and 2, six second cable main bodies 5 are provided, and six second cable main bodies 5 are circumferentially uniformly distributed in the insulating sleeve 1, and the circumferentially uniformly distributed second cable main bodies 5 are arranged in order.
In this embodiment, as shown in fig. 1 and fig. 2, the outer side of the first cable main body 4 and the outer side of the second cable main body 5 are both fixed with the flame retardant layer 6, and the flame retardant layer 6 is a PVC flame retardant fuel, and PVC has the characteristics of flame retardance, corrosion resistance, good comprehensive mechanical properties, low price, and the like, and the flame retardant layer 6 has the characteristics of flame retardance and fire resistance.
In this embodiment, as shown in fig. 1 and 2, the waterproof layer 7 is fixed on the outer side of the flame retardant layer 6, and the waterproof layer 7 is made of polyvinyl chloride, the first cable body 4 and the second cable body 5 are all connected with the insulating sleeve 1 through the connecting block 8, the waterproof layer 7 made of polyvinyl chloride has good weather resistance, high temperature resistance, corrosion resistance, aging resistance and insulating property, and is suitable for various waterproof occasions, the waterproof effect is good, the connecting block 8 plays a role in connecting the first cable body 4 and the insulating sleeve 1, and also plays a role in connecting the second cable body 5 and the insulating sleeve 1.
In this embodiment, as shown in fig. 1, the outer sides of the first cable main body 4 and the second cable main body 5 are both fixed with heat conducting fins 9, and the connection block 8 and the heat conducting fins 9 penetrate through the flame retardant layer 6 and the waterproof layer 7, so that when wind shuttles in the insulating sleeve 1, the heat conducting fins 9 can conduct heat on the first cable main body 4 and the second cable main body 5 into the wind, thereby conveniently achieving the effect of heat dissipation.
The application method and the advantages of the invention are as follows: the fire-resistant cable has the following working process:
As shown in fig. 1 to 4: the second cable main part 5 is provided with six, six second cable main parts 5 regard first cable main part 4 as central circumference evenly distributed in insulating cover 1, insulating cover 1 can play insulating protection's effect, fire-retardant fire-resistant and waterproof layer 7 play fire-retardant fire-resistant and waterproof effect respectively, connecting block 8 is used for connecting first cable main part 4 and insulating cover 1, also be used for connecting second cable main part 5 and insulating cover 1, grid 3 can play ventilation and heat dissipation and block dust impurity's effect, when wind shuttles in insulating cover 1, heat conducting strip 9 goes out the heat conduction on first cable main part 4, the second cable main part 5, in order to reach radiating effect.
In conclusion, the fireproof cable achieves the purposes of insulation, flame retardance, fire resistance, water resistance and heat dissipation, and meets the use requirements of people.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present invention.
Although the present invention has been described 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 and changes may be made without departing from the spirit and principles of the present invention.
Claims (3)
1. A fire resistant cable comprising an insulating sheath (1), characterized in that: the utility model discloses a cable insulation structure, including insulating cover (1), insulating cover (2) are seted up in the outside of opening (2), insulating cover (1) parcel is in the outside of first cable main part (4) and second cable main part (5), the outside of first cable main part (4) and the outside of second cable main part (5) all are fixed with fire-retardant layer (6), and fire-retardant layer (6) are PVC and hinder the fuel, the outside of fire-retardant layer (6) is fixed with waterproof layer (7), and waterproof layer (7) are polyvinyl chloride material, first cable main part (4) and second cable main part (5) are all connected with insulating cover (1) through connecting block (8), the outside of first cable main part (4) and the outside of second cable main part (5) all are fixed with conducting strip (9), and connecting block (8) and conducting strip (9) all run through fire-retardant layer (6) and waterproof layer (7).
2. A fire resistant cable according to claim 1, characterized in that: the grid (3) is a steel member, and the grids (3) are circumferentially and uniformly distributed on the insulating sleeve (1).
3. A fire resistant cable according to claim 1, characterized in that: six second cable main bodies (5) are arranged, and the six second cable main bodies (5) are circumferentially and uniformly distributed in the insulating sleeve (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202411020583.4A CN118553473B (en) | 2024-07-29 | 2024-07-29 | Fire-resistant cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202411020583.4A CN118553473B (en) | 2024-07-29 | 2024-07-29 | Fire-resistant cable |
Publications (2)
Publication Number | Publication Date |
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CN118553473A CN118553473A (en) | 2024-08-27 |
CN118553473B true CN118553473B (en) | 2024-10-18 |
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CN202411020583.4A Active CN118553473B (en) | 2024-07-29 | 2024-07-29 | Fire-resistant cable |
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CN (1) | CN118553473B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN119230184A (en) * | 2024-12-03 | 2024-12-31 | 山东强军电缆有限公司 | A waterproof photovoltaic cable |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN213339802U (en) * | 2020-09-09 | 2021-06-01 | 江苏洪能电缆有限公司 | Cable with flame-retardant outer wrapping |
CN216084413U (en) * | 2021-07-07 | 2022-03-18 | 易初特种电线电缆(昆山)有限公司 | Cable with high heat dissipation performance |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6992253B1 (en) * | 2003-07-30 | 2006-01-31 | The United States Of America As Represented By The Secretary Of The Navy | Strength strand construction for a longitudinal section of a cable |
CN212516669U (en) * | 2020-06-01 | 2021-02-09 | 江苏恒辉电气有限公司 | Cross-linked polyethylene insulation halogen-free low-smoke flame-retardant special control cable |
CN217562293U (en) * | 2022-04-25 | 2022-10-11 | 广西胜华电缆有限公司 | Fill electric pile cable |
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2024
- 2024-07-29 CN CN202411020583.4A patent/CN118553473B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN213339802U (en) * | 2020-09-09 | 2021-06-01 | 江苏洪能电缆有限公司 | Cable with flame-retardant outer wrapping |
CN216084413U (en) * | 2021-07-07 | 2022-03-18 | 易初特种电线电缆(昆山)有限公司 | Cable with high heat dissipation performance |
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CN118553473A (en) | 2024-08-27 |
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