CN217485115U - Low-shielding capacitance cable - Google Patents
Low-shielding capacitance cable Download PDFInfo
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- CN217485115U CN217485115U CN202221208038.4U CN202221208038U CN217485115U CN 217485115 U CN217485115 U CN 217485115U CN 202221208038 U CN202221208038 U CN 202221208038U CN 217485115 U CN217485115 U CN 217485115U
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Abstract
The utility model discloses a low-shielding capacitance cable, through set up the band layer that is made up of two layers of high flame retardant tapes and one deck plastic-aluminum composite tape around the package between cable core and shielding layer, effectively increased the physical distance between cable core and shielding layer to reduce the electric capacity between cable core and shielding layer, utilize high flame retardant tape to promote the flame retardant property of low-shielding capacitance cable simultaneously, utilize the plastic-aluminum composite tape to strengthen the shielding property of low-shielding capacitance cable; by setting the shielding layer with the shielding coverage rate of 80% -85%, the capacitance and the cable cost between the cable core and the shielding layer are effectively reduced, and meanwhile, the capacitance between the cable core and the shielding layer is further reduced by adjusting the braiding angle of the shielding layer, the shielding efficiency of the shielding layer is improved, and the shielding layer can be widely applied to the technical field of cables.
Description
Technical Field
The utility model belongs to the technical field of the cable technique and specifically relates to a low shielding electric capacity cable.
Background
Shielded cables are desirable in certain environments to prevent electromagnetic interference from the cable to the outside environment or from the outside environment to the cable.
However, because the shielding structure is arranged in the cable, capacitance exists between the shielding structure and the cable core, certain current is generated when the shielding is grounded, and leakage current is generated even after the current reaches a certain degree, so that tripping is caused, and the normal operation of equipment is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: a low-shielding capacitance cable is provided to reduce the capacitance between a shielding structure and a cable core in the cable.
The utility model adopts the technical proposal that:
a low shield capacitance cable comprising:
the wrapping belt layer is formed by wrapping two layers of high-flame-retardant belts and one layer of aluminum-plastic composite belt;
a cable core, the cable core being coated by the belting layer;
the shielding layer is arranged on one side, far away from the cable cores, of the belting layer in a wrapping mode, the shielding layer is a braided shielding layer, the shielding coverage rate of the shielding layer is 80% -85%, and the braiding angle of the shielding layer is 15-35 degrees
Further, the thickness of the high flame retardant belt is 0.2mm, and the thickness of the aluminum-plastic composite belt is 0.05 mm.
Further, the cable core comprises a conductor and an insulating layer, and the conductor is coated by the insulating layer.
Further, the conductor conforms to the GB/T3956 standard.
Further, the cross-sectional area of the conductor is 0.5-16mm 2 。
Further, the insulating layer is prepared from cross-linked polyethylene.
Further, the low-shielding capacitance cable further comprises a sheath layer, wherein the sheath layer is coated on one side, far away from the belting layer, of the shielding layer.
The utility model has the advantages that:
the utility model relates to a low shielding electric capacity cable, through set up the band layer that is made up of two layers of high flame retardant tapes and one deck aluminum-plastic composite tape lapping between cable core and shielding layer, effectively increased the physical distance between cable core and shielding layer to reduce the electric capacity between cable core and shielding layer, utilize high flame retardant tape to promote the flame retardant property of low shielding electric capacity cable simultaneously, utilize the aluminum-plastic composite tape to strengthen the shielding property of low shielding electric capacity cable; by setting the shielding layer with the shielding coverage rate of 80% -85%, the capacitance and the cable cost between the cable core and the shielding layer are effectively reduced, and meanwhile, the capacitance between the cable core and the shielding layer is further reduced by adjusting the braiding angle of the shielding layer, and the shielding efficiency of the shielding layer is improved.
Drawings
Fig. 1 is a schematic view of the structure of the low-shielding capacitance cable of the present invention.
Reference numerals are as follows: 101. a belting layer; 102. a shielding layer; 103. a conductor; 104. an insulating layer; 105. and a sheath layer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood not to include the number. If there is a description to first, second, third etc. for the purpose of distinguishing between technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated or to implicitly indicate the precedence of technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, a low shield capacitance cable includes:
the belt packaging layer 101 is formed by wrapping two layers of high-flame-retardant belts and one layer of aluminum-plastic composite belt;
a cable core, which is covered by the belting layer 101;
the shielding layer 102 is arranged on one side, away from the cable core, of the belting layer 101 in a wrapping mode, the shielding layer 102 is a braided shielding layer, the shielding coverage rate of the shielding layer 102 is 80% -85%, and the braiding angle of the shielding layer 102 is 15-35 degrees.
The utility model relates to a low shielding electric capacity cable, through set up the band layer 101 that is become by two layers of high fire-retardant tapes and one deck plastic-aluminum composite tape around the package between cable core and shielding layer 102, effectively increased the physical distance between cable core and the shielding layer to reduce the electric capacity between cable core and shielding layer 102, utilize high fire-retardant tape to promote the fire behaviour of low shielding electric capacity cable simultaneously, utilize the plastic-aluminum composite tape to strengthen the shielding performance of low shielding electric capacity cable; by setting the shielding layer 102 with the shielding coverage rate of 80% -85%, the capacitance and the cable cost between the cable core and the shielding layer 102 are effectively reduced, and meanwhile, the capacitance between the cable core and the shielding layer 102 is further reduced by adjusting the braiding angle of the shielding layer 102, and the shielding efficiency of the shielding layer 102 is improved.
As an alternative embodiment, the thickness of the high flame retardant tape is 0.2mm, and the thickness of the aluminum-plastic composite tape is 0.05 mm.
As an alternative embodiment, the cable core comprises a conductor 103 and an insulating layer 104, and the conductor 103 is covered by the insulating layer 104.
The conductor 103 is used for transmitting power, and the insulating layer 104 is used for isolating the conductor 103, so that the conductor 103 is prevented from being leaked or oxidized, and meanwhile, the mechanical strength of a cable core is enhanced and the service life of the cable core is prolonged.
As an alternative embodiment, the conductor 103 is a conductor conforming to the GB/T3956 standard.
In an alternative embodiment, the insulating layer 104 is made of cross-linked polyethylene.
It is understood that the insulating layer 104 is generally made of a low dielectric constant material, so as to improve the insulating property of the cable core and reduce the capacitance between the cable core and the shielding layer 102.
As an optional embodiment, the low-shielding capacitance cable further includes a sheath layer 105, and the sheath layer 105 is disposed on a side of the shielding layer 102 away from the belting layer 101.
Wherein the sheath layer 105 is used for protecting low-shielding capacitance cable
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (7)
1. A low shield capacitance cable, comprising:
the belting layer is formed by wrapping two layers of high-flame-retardant belts and one layer of aluminum-plastic composite belt;
a cable core, the cable core being wrapped by the band layer;
the shielding layer is arranged on one side, far away from the cable core, of the belting layer in a wrapping mode, the shielding layer is a braided shielding layer, the shielding coverage rate of the shielding layer is 80% -85%, and the braiding angle of the shielding layer is 15-35 degrees.
2. The low-shielding capacitance cable as claimed in claim 1, wherein the thickness of the high flame retardant tape is 0.2mm, and the thickness of the aluminum-plastic composite tape is 0.05 mm.
3. The low-shielding capacitance cable of claim 1, wherein the cable core comprises a conductor and an insulating layer, and the conductor is covered by the insulating layer.
4. A low-shielding capacity cable according to claim 3, wherein the conductor is one conforming to GB/T3956.
5. A low shield capacitance cable according to claim 4, wherein the cross-sectional area of said conductor is 0.5-16mm 2 。
6. A low-shield capacitor cable according to claim 3, wherein said insulating layer is made of cross-linked polyethylene.
7. The low-shielding capacitance cable according to claim 1, further comprising a sheath layer, wherein the sheath layer is wrapped on a side of the shielding layer away from the wrapping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221208038.4U CN217485115U (en) | 2022-05-19 | 2022-05-19 | Low-shielding capacitance cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221208038.4U CN217485115U (en) | 2022-05-19 | 2022-05-19 | Low-shielding capacitance cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217485115U true CN217485115U (en) | 2022-09-23 |
Family
ID=83310720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221208038.4U Active CN217485115U (en) | 2022-05-19 | 2022-05-19 | Low-shielding capacitance cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217485115U (en) |
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2022
- 2022-05-19 CN CN202221208038.4U patent/CN217485115U/en active Active
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