CN211828214U - Cable with good flame-retardant effect - Google Patents
Cable with good flame-retardant effect Download PDFInfo
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- CN211828214U CN211828214U CN202020583869.4U CN202020583869U CN211828214U CN 211828214 U CN211828214 U CN 211828214U CN 202020583869 U CN202020583869 U CN 202020583869U CN 211828214 U CN211828214 U CN 211828214U
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Abstract
The utility model provides a cable that flame retardant efficiency is good the utility model discloses a cable that flame retardant efficiency is good, including protective sheath, spacing piece, cable core, insulating layer, fire-retardant non-woven fabrics layer, polyvinyl chloride, band layer, inert gas layer, flame retardant coating, armor and wearing layer, the inside of protective sheath is provided with the spacing piece, the inside of protective sheath and the top and the below that are located the spacing piece all are provided with the cable core, the surface of cable core is provided with the insulating layer, the surface of insulating layer is provided with fire-retardant non-woven fabrics layer, the inside packing of protective sheath has polyvinyl chloride. The utility model discloses a protective sheath, spacing piece, cable core, insulating layer, fire-retardant non-woven fabrics layer, polyvinyl chloride, band layer, inert gas layer, flame retardant coating, armor and wearing layer mutually support, have played the effect that flame retardant efficiency is good, can effectively block thermal propagation, have reduced the possibility of burning, have greatly improved the security performance of cable, and the practicality is strong, is worth promoting.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be a cable that flame retardant efficiency is good.
Background
A cable is typically a rope-like cable made up of several or groups of at least two twisted conductors, each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The device is erected in the air or installed underground or underwater for telecommunication or power transmission. The cable may be classified into a power cable, a communication cable, a control cable, and the like according to its use. The cable is mostly applied to dense areas of population and power grids and places with crowded and busy traffic; when the cable is laid in the river, the river and the seabed, the use of large-span overhead lines can be avoided. Cables may also be used where it is desirable to avoid interference of overhead lines with communications and where aesthetic considerations or exposure to objects are desired. At present, common cables are poor in flame retardant effect and safety performance, and cannot meet the requirements of modern use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cable that flame retardant efficiency is good to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cable that flame retardant efficiency is good, includes protective sheath, spacing piece, cable core, insulating layer, fire-retardant non-woven fabrics layer, polyvinyl chloride, band layer, inert gas layer, flame retardant coating, armor and wearing layer, the inside of protective sheath is provided with the spacing piece, the inside of protective sheath and the top and the below that are located the spacing piece all are provided with the cable core, the surface of cable core is provided with the insulating layer, the surface of insulating layer is provided with fire-retardant non-woven fabrics layer, the inside packing of protective sheath has polyvinyl chloride, the surface of protective sheath is provided with the band layer, the surface of band layer is provided with the inert gas layer, the surface of inert gas layer is provided with the flame retardant coating, the surface of flame retardant coating is provided with the armor, the surface of armor is provided with the wearing.
Preferably, the separator is made of a halogen-free flame retardant material.
Preferably, the insulating layer is made of cross-linked polyethylene.
Preferably, the belting layer is formed by wrapping 0.5mm of aluminum foil belting.
Preferably, the fire-resistant layer is made of synthetic mica or ceramic silicone rubber.
Preferably, the gas filled in the inert gas layer is neon.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a protective sheath, spacing piece, cable core, insulating layer, fire-retardant non-woven fabrics layer, polyvinyl chloride, band layer, inert gas layer, flame retardant coating, armor and wearing layer mutually support, have played the effect that flame retardant efficiency is good, can effectively block thermal propagation, have reduced the possibility of burning, have greatly improved the security performance of cable, and the practicality is strong, is worth promoting.
Drawings
Fig. 1 is a structural section view of the front view of the present invention.
In the figure: 1 protective sleeve, 2 separating sheets, 3 cable cores, 4 insulating layers, 5 flame-retardant non-woven fabric layers, 6 polyvinyl chloride, 7 belting layers, 8 inert gas layers, 9 flame-retardant layers, 10 armor layers and 11 wear-resistant layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a cable with good flame retardant effect includes a protective sheath 1, a separator 2, a cable core 3, an insulating layer 4, a flame retardant non-woven fabric layer 5, polyvinyl chloride 6, a belting layer 7, an inert gas layer 8, a flame retardant layer 9, an armor layer 10 and a wear layer 11, the separator 2 is disposed inside the protective sheath 1, the separator 2 is made of a halogen-free flame retardant material, the cable core 3 is disposed inside the protective sheath 1 and above and below the separator 2, the insulating layer 4 is disposed on the outer surface of the cable core 3, the insulating layer 4 is made of crosslinked polyethylene, polyethylene is one of the most large plastic resins, due to the structural characteristics of polyethylene, polyethylene cannot bear high temperature, has insufficient mechanical strength, and is limited in application in many fields, and in order to improve the performance of polyethylene, many modification methods are studied to crosslink polyethylene, the properties of polyethylene resins are rapidly improved by the formation of a network of three-dimensional structures by covalent bonds between polyethylene molecules, such as: the crosslinked polyethylene has the important characteristics of strength and temperature resistance, particularly creep strength, the strength of the crosslinked polyethylene does not change remarkably along with the use time, the service life of the crosslinked polyethylene can reach 50 years, the outer surface of the insulating layer 4 is provided with a flame-retardant non-woven fabric layer 5, the protective sleeve 1 is filled with polyvinyl chloride 6, the outer surface of the protective sleeve 1 is provided with a belting layer 7, the belting layer 7 is formed by wrapping 0.5mm aluminum foil, the outer surface of the belting layer 7 is provided with an inert gas layer 8, the gas filled in the inert gas layer 8 is neon, the outer surface of the inert gas layer 8 is provided with a fire-resistant layer 9, the fire-resistant layer 9 is made of synthetic mica or ceramic silicon rubber, the synthetic mica is also called fluorophlogopite and is prepared by high-temperature melting, cooling and crystallizing by using chemical raw materials, the single crystal sheet has the molecular formula of KMg3(AlSi3O10) F2, belongs to monoclinic system, is typical layered silicate, has many performances superior to natural mica, such as temperature resistance up to 1200 ℃, under the condition of high temperature, the volume resistivity of the synthetic fluorophlogopite is 1000 times higher than that of natural mica, the synthetic fluorophlogopite has the characteristics of good electrical insulation, extremely low vacuum outgassing at high temperature, acid and alkali resistance, transparency, strippability, high elasticity and the like, is an important non-metallic insulating material for modern industries and high technologies such as motors, electrical appliances, electronics, aviation and the like, and is in a synthetic mica crystal block obtained by an internal heating method, more than 95 percent of the mica chips are small crystals, namely synthetic mica chips, and can be made into various insulating products, such as synthetic mica paper, laminated board, fluorophlogopite powder mica, mica pearlescent pigment, mica ceramic and the like, the outer surface of the fire-resistant layer 9 is provided with an armor layer 10, and the outer surface of the armor layer 10 is provided with a wear-resistant layer 11.
The working principle is as follows: the utility model discloses a protective sheath 1, spacing block 2, cable core 3, insulating layer 4, fire-retardant non-woven fabrics layer 5, polyvinyl chloride 6, band layer 7, inert gas layer 8, flame retardant coating 9, armor 10 and wearing layer 11 mutually support, have played the effect that flame retardant efficiency is good, can effectively block thermal propagation, have reduced the possibility of burning, have greatly improved the security performance of cable, and the practicality is strong, is worth promoting.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a cable that flame retardant efficiency is good, includes protective sheath (1), spacing piece (2), cable core (3), insulating layer (4), fire-retardant non-woven fabrics layer (5), polyvinyl chloride (6), band layer (7), inert gas layer (8), flame retardant coating (9), armor (10) and wearing layer (11), its characterized in that: the cable protection sleeve is characterized in that a separation sheet (2) is arranged inside the protection sleeve (1), a cable core body (3) is arranged above and below the separation sheet (2) inside the protection sleeve (1), an insulating layer (4) is arranged on the outer surface of the cable core body (3), a flame-retardant non-woven fabric layer (5) is arranged on the outer surface of the insulating layer (4), polyvinyl chloride (6) is filled inside the protection sleeve (1), a wrapping layer (7) is arranged on the outer surface of the protection sleeve (1), an inert gas layer (8) is arranged on the outer surface of the wrapping layer (7), a flame-retardant layer (9) is arranged on the outer surface of the inert gas layer (8), an armor layer (10) is arranged on the outer surface of the armor layer (10), and a wear-resistant layer (11) is arranged on the outer.
2. The cable with good flame retardant effect according to claim 1, characterized in that: the separation sheet (2) is made of halogen-free flame retardant material.
3. The cable with good flame retardant effect according to claim 1, characterized in that: the insulating layer (4) is made of cross-linked polyethylene.
4. The cable with good flame retardant effect according to claim 1, characterized in that: the belting layer (7) is formed by lapping 0.5mm of aluminum foil belting.
5. The cable with good flame retardant effect according to claim 1, characterized in that: the fire-resistant layer (9) is made of synthetic mica or ceramic silicon rubber.
6. The cable with good flame retardant effect according to claim 1, characterized in that: the gas filled in the inert gas layer (8) is neon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583869.4U CN211828214U (en) | 2020-04-20 | 2020-04-20 | Cable with good flame-retardant effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583869.4U CN211828214U (en) | 2020-04-20 | 2020-04-20 | Cable with good flame-retardant effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211828214U true CN211828214U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020583869.4U Active CN211828214U (en) | 2020-04-20 | 2020-04-20 | Cable with good flame-retardant effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211828214U (en) |
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2020
- 2020-04-20 CN CN202020583869.4U patent/CN211828214U/en active Active
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