CN215342092U - High-flame-retardant medium-voltage cable - Google Patents
High-flame-retardant medium-voltage cable Download PDFInfo
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- CN215342092U CN215342092U CN202121174170.3U CN202121174170U CN215342092U CN 215342092 U CN215342092 U CN 215342092U CN 202121174170 U CN202121174170 U CN 202121174170U CN 215342092 U CN215342092 U CN 215342092U
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Abstract
The utility model discloses a high-flame-retardance medium-voltage cable, which relates to the field of medium-voltage cables and comprises a cable main body, wherein a cable conductor is arranged on the inner surface of the cable main body in a surrounding mode, an electromagnetic insulating sleeve is arranged on the outer surface of the cable conductor, a protective sleeve is arranged on the outer surface of the electromagnetic insulating sleeve, the protective sleeve comprises a conductor shielding layer, a metal shielding layer is arranged on the outer surface of the conductor shielding layer, a filling material is arranged on the outer surface of the protective sleeve, the filling material is made of cotton threads, and an inner sheath is arranged on the outer surface of the cable main body. The flame-retardant cable main body has the advantages that the flame-retardant sheath is arranged, so that the combustion time is effectively shortened, the combustion is delayed, the fire-retardant part is self-extinguished due to smoke resistance, the polyfluorinated ethylene propylene material is not ignited, the flame diffusion can be prevented, the cable main body has excellent wear resistance, the friction coefficient is low, the cable main body can be used from low temperature to 392F, the fire resistance and the wear resistance of the cable main body are improved, and the service life of the cable main body is prolonged.
Description
Technical Field
The utility model relates to the field of medium-voltage cables, in particular to a high-flame-retardant medium-voltage cable.
Background
Many people know low-voltage cables and high-voltage cables, but few people know medium-voltage cables, the voltage range of the medium-voltage cables is between 6KV and 33KV, and the fields of practical life and production application of the medium-voltage cables comprise petrifaction, transportation, wastewater treatment, food processing and the like, and the medium-voltage cables are also important application cable types.
In the prior art, the traditional medium-voltage cable has poor flame retardant effect and protective performance, can not effectively reduce the burning time, delay burning and prevent smoke to cause the self-extinguishing of the part on fire, and shortens the service life of the medium-voltage cable.
Therefore, it is necessary to invent a high flame-retardant medium voltage cable to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-flame-retardant medium-voltage cable, which aims to solve the problems of poor flame-retardant effect and poor protective performance in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a high flame-retardant medium-voltage cable comprises a cable main body, wherein a cable conductor is arranged on the inner surface of the cable main body in a surrounding manner, the outer surface of the cable conductor is provided with an electromagnetic insulating sleeve, the outer surface of the electromagnetic insulating sleeve is provided with a protective sleeve, the protective sleeve comprises a conductor shielding layer, the outer surface of the conductor shielding layer is provided with a metal shielding layer, the outer surface of the protective sleeve is provided with a filling material which is made of cotton thread, the outer surface of the cable main body is provided with an inner protective sleeve, the outer surface of the inner sheath is provided with a woven material layer, the outer surface of the woven material layer is provided with a flame-retardant layer, the outer surface of the flame-retardant layer is provided with a flame-retardant sheath which comprises a flame-retardant material layer, the outer surface of the flame-retardant material layer is provided with a flame-retardant fiber layer, and the outer surface of the flame-retardant fiber layer is provided with fluorinated ethylene propylene.
Preferably, the outer surface of the cable conductor is adhered to the inner surface of the electromagnetic insulating sleeve, the outer surface of the electromagnetic insulating sleeve is adhered to the inner surface of the protective sleeve, the flame-retardant protective sleeve is arranged, the combustion time is effectively shortened, the combustion is delayed, the fire-retardant part is self-extinguished due to smoke resistance, the polyfluorinated ethylene propylene material is not ignited, the flame diffusion can be prevented, the cable conductor has excellent wear resistance and a low friction coefficient, the cable conductor can be used from low temperature to 392F, the fire resistance and the wear resistance of the cable body are improved, and the service life of the cable body is prolonged.
Preferably, the woven material layer is made of fiber woven materials, the fiber woven materials are mutually staggered or hooked and interwoven, the electromagnetic interference and electromagnetic radiation prevention function is achieved through the protective sleeve by utilizing the reflection, absorption and skin effect of the metal shielding layer, and the shielding system comprehensively utilizes the balance principle of the twisted pair and the shielding effect of shielding, so that the electromagnetic compatibility characteristic is very good, and the cable main body is well shielded.
Preferably, the outer surface of the woven material layer is adhered to the inner surface of the flame-retardant layer, the outer surface of the flame-retardant layer is adhered to the inner surface of the flame-retardant sheath, the flame-retardant layer is arranged, the cable main body is well protected, and the problem of poor protection performance of the cable main body is solved.
Preferably, the outer surface of the conductor shielding layer is adhered to the inner surface of the metal shielding layer, the thicknesses of the conductor shielding layer and the metal shielding layer are the same, and the cable conductor is formed by twisting a plurality of insulating wire cores through a filling material, so that gaps are inevitably generated in the cabling process, and if the gaps are not tightly filled with the material, the cable conductor is unstable, the service life of the cable conductor in the using process is shortened, and the sealing performance and the service life of the cable conductor are improved.
Preferably, the surface coating on flame retardant fiber layer has fire-retardant coating, the flame retardant material layer is chloroprene rubber, through setting up the inner sheath and weaving the material layer, has played fine guard action to the cable main part to the utility layer of inside receives the damage when transportation and installation, has improved the life of cable main part.
The utility model has the technical effects and advantages that:
1. the flame-retardant sheath is arranged, so that the combustion time is effectively reduced, the combustion is delayed, the ignition part is self-extinguished due to smoke resistance, the fluorinated ethylene propylene copolymer material is not ignited, the flame diffusion can be prevented, the cable has excellent wear resistance, the friction coefficient is low, the cable can be used from low temperature to 392F, the fire resistance and the wear resistance of the cable main body are improved, and the service life of the cable main body is prolonged;
2. the shielding system comprehensively utilizes the balance principle of a twisted pair and the shielding effect of shielding, so that the cable has very good electromagnetic compatibility characteristic, plays a good role in shielding the cable main body, plays a good role in protecting the cable main body by arranging the flame-retardant layer, and solves the problem of poor protecting performance of the cable main body;
3. through the filler material, because cable conductor has many insulation core transposition to constitute, must produce the gap at the cabling in-process, if these gaps need not the material packing closely knit, cable conductor is unstable, it is the life-span in the use to reduce cable conductor, cable conductor's sealing performance and life have been improved, through setting up the inner sheath and weaving the material layer, fine guard action has been played to the cable main part, in order to avoid inside utility layer to receive the damage when transportation and installation, the life of cable main part has been improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a perspective view showing the structure of the protective cover of the present invention.
Fig. 3 is a perspective view of the flame-retardant sheath structure of the present invention.
In the figure: 1. a cable body; 2. a cable conductor; 3. an electromagnetic insulating sleeve; 4. a protective sleeve; 41. a conductor shield layer; 42. a metal shielding layer; 5. a filler material; 6. an inner sheath; 7. weaving the material layer; 8. a flame retardant layer; 9. a flame retardant jacket; 91. a layer of flame retardant material; 92. a flame-retardant fiber layer; 93. polyperfluorinated ethylene propylene.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a high-flame-retardant medium-voltage cable shown in figures 1-3, which comprises a cable main body 1, wherein a cable conductor 2 is arranged on the inner surface of the cable main body 1 in a surrounding manner, an electromagnetic insulating sleeve 3 is arranged on the outer surface of the cable conductor 2, a protective sleeve 4 is arranged on the outer surface of the electromagnetic insulating sleeve 3, the protective sleeve 4 comprises a conductor shielding layer 41, a metal shielding layer 42 is arranged on the outer surface of the conductor shielding layer 41, a filling material 5 is arranged on the outer surface of the protective sleeve 4, the filling material 5 is made of cotton threads, an inner sheath 6 is arranged on the outer surface of the cable main body 1, a braided material layer 7 is arranged on the outer surface of the inner sheath 6, a flame-retardant layer 8 is arranged on the outer surface of the braided material layer 7, a flame-retardant sheath 9 is arranged on the outer surface of the flame-retardant layer 8, the flame-retardant sheath 9 comprises a flame-retardant material layer 91, and a flame-retardant fiber layer 92 is arranged on the outer surface of the flame-retardant material layer 91, the outer surface of the flame-retardant fiber layer 92 is provided with polyfluorinated ethylene propylene 93;
furthermore, the outer surface of the cable conductor 2 is adhered to the inner surface of the electromagnetic insulating sleeve 3, the outer surface of the electromagnetic insulating sleeve 3 is adhered to the inner surface of the protective sleeve 4, and the flame-retardant protective sleeve 9 is arranged, so that the combustion time is effectively reduced, the combustion is delayed, the smoke is blocked, and the ignition part is self-extinguished, wherein the polyfluorinated ethylene propylene 93 material is not ignited, can prevent the diffusion of flame, has excellent wear resistance and lower friction coefficient, can be used from low temperature to 392F, increases the fire resistance and wear resistance of the cable main body 1, and prolongs the service life of the cable main body 1;
furthermore, the woven material layer 7 is made of fiber woven materials, the fiber woven materials are mutually interlaced or hooked and interwoven, the electromagnetic interference and electromagnetic radiation prevention function is realized by the aid of the protective sleeve 4 and reflection, absorption and skin effects of the metal shielding layer 42, and the shielding system comprehensively utilizes the balance principle of a twisted pair and the shielding function of shielding, so that the cable has very good electromagnetic compatibility and plays a good shielding role in the cable main body 1;
furthermore, the outer surface of the woven material layer 7 is adhered to the inner surface of the flame-retardant layer 8, the outer surface of the flame-retardant layer 8 is adhered to the inner surface of the flame-retardant sheath 9, and the flame-retardant layer 8 is arranged, so that the cable body 1 is good in protection performance, and the problem that the cable body 1 is poor in protection performance is solved;
furthermore, the outer surface of the conductor shielding layer 41 is adhered to the inner surface of the metal shielding layer 42, the thicknesses of the conductor shielding layer 41 and the metal shielding layer 42 are the same, and the filling material 5 is used for filling gaps which are inevitably generated in the cabling process because the cable conductor 2 is formed by stranding a plurality of insulating wire cores, if the gaps are not tightly filled with the material, the cable conductor 2 is unstable, the service life of the cable conductor 2 in the use process is shortened, and the sealing performance and the service life of the cable conductor 2 are improved;
further, the surface coating of flame retardant fiber layer 92 has fire-retardant coating, and flame retardant material layer 91 is chloroprene rubber, through setting up inner sheath 6 and weaving material layer 7, has played fine guard action to cable main body 1 to the utility layer of inside receives the damage when transportation and installation, has improved cable main body 1's life.
The working principle of the utility model is as follows: the flame-retardant sheath 9 is arranged, so that the combustion time is effectively reduced, the combustion is delayed, the fire-retardant part is self-extinguished due to smoke resistance, the polyfluorinated ethylene propylene 93 material is not ignited, the flame diffusion can be prevented, the cable has excellent wear resistance and low friction coefficient, can be used from low temperature to 392F, the fire resistance and the wear resistance of the cable main body 1 are improved, the service life of the cable main body 1 is prolonged, the electromagnetic interference and the electromagnetic radiation can be prevented by the aid of the sheath 4 and by means of reflection, absorption and skin effect of the metal shielding layer 42, the shielding system comprehensively utilizes the balance principle of a twisted pair and the shielding effect of shielding, so that the cable main body 1 has very good electromagnetic compatibility, the cable main body 1 is well shielded by the flame-retardant layer 8, and the problem of poor shielding performance of the cable main body 1 is solved, through the filling material 5, because the cable conductor 2 is formed by twisting a plurality of insulated wire cores, gaps are inevitably generated in the cabling process, and if the gaps are not densely filled with materials, the cable conductor 2 is unstable, the service life of the cable conductor 2 in the use process is shortened, and the sealing performance and the service life of the cable conductor 2 are improved; through setting up inner sheath 6 and weaving material layer 7, played fine guard action to cable main part 1 to the utility layer of inside receives the damage when transportation and installation, has improved cable main part 1's life.
Finally, it should be noted that: although the present invention 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 or portions thereof without departing from the spirit and scope of the utility model.
Claims (6)
1. A high flame retardant medium voltage cable comprising a cable body (1), characterized in that: the cable comprises a cable body (1), and is characterized in that a cable conductor (2) is arranged on the inner surface of the cable body (1) in a surrounding mode, an electromagnetic insulating sleeve (3) is arranged on the outer surface of the cable conductor (2), a protective sleeve (4) is arranged on the outer surface of the electromagnetic insulating sleeve (3), the protective sleeve (4) comprises a conductor shielding layer (41), a metal shielding layer (42) is arranged on the outer surface of the conductor shielding layer (41), a filling material (5) is arranged on the outer surface of the protective sleeve (4), the filling material (5) is made of cotton threads, an inner sheath (6) is arranged on the outer surface of the cable body (1), a woven material layer (7) is arranged on the outer surface of the woven material layer (7), a flame-retardant layer (8) is arranged on the outer surface of the flame-retardant layer (8), a flame-retardant sheath (9) is arranged on the outer surface of the flame-retardant sheath (9) and comprises a flame-retardant material layer (91), the outer surface of the flame-retardant material layer (91) is provided with a flame-retardant fiber layer (92), and the outer surface of the flame-retardant fiber layer (92) is provided with perfluorinated ethylene propylene (93).
2. A high flame retardant medium voltage cable according to claim 1, characterized in that: the outer surface of the cable conductor (2) is adhered to the inner surface of the electromagnetic insulating sleeve (3), and the outer surface of the electromagnetic insulating sleeve (3) is adhered to the inner surface of the protective sleeve (4).
3. A high flame retardant medium voltage cable according to claim 1, characterized in that: the woven material layer (7) is made of fiber woven materials, and the fiber woven materials are mutually staggered or hooked and interwoven.
4. A high flame retardant medium voltage cable according to claim 1, characterized in that: the outer surface of the woven material layer (7) is adhered to the inner surface of the flame-retardant layer (8), and the outer surface of the flame-retardant layer (8) is adhered to the inner surface of the flame-retardant sheath (9).
5. A high flame retardant medium voltage cable according to claim 1, characterized in that: the outer surface of the conductor shielding layer (41) is adhered to the inner surface of the metal shielding layer (42), and the thicknesses of the conductor shielding layer (41) and the metal shielding layer (42) are the same.
6. A high flame retardant medium voltage cable according to claim 1, characterized in that: the outer surface of the flame-retardant fiber layer (92) is coated with flame-retardant coating, and the flame-retardant material layer (91) is chloroprene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174170.3U CN215342092U (en) | 2021-05-28 | 2021-05-28 | High-flame-retardant medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174170.3U CN215342092U (en) | 2021-05-28 | 2021-05-28 | High-flame-retardant medium-voltage cable |
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| Publication Number | Publication Date |
|---|---|
| CN215342092U true CN215342092U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121174170.3U Active CN215342092U (en) | 2021-05-28 | 2021-05-28 | High-flame-retardant medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215342092U (en) |
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2021
- 2021-05-28 CN CN202121174170.3U patent/CN215342092U/en active Active
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