CN216528102U - Environment-friendly high-flame-retardant special medium-voltage cable - Google Patents
Environment-friendly high-flame-retardant special medium-voltage cable Download PDFInfo
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- CN216528102U CN216528102U CN202122788472.6U CN202122788472U CN216528102U CN 216528102 U CN216528102 U CN 216528102U CN 202122788472 U CN202122788472 U CN 202122788472U CN 216528102 U CN216528102 U CN 216528102U
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- layer
- sleeved
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- flame
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 58
- 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 36
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910001369 Brass Inorganic materials 0.000 claims description 5
- 239000010951 brass Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
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Classifications
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- 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
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- Insulated Conductors (AREA)
Abstract
The utility model discloses an environment-friendly high flame-retardant special medium-voltage cable in the technical field of cables, which comprises: a conductor, wherein a conductor shielding layer is sleeved on the outer wall of the conductor, an insulating layer is sleeved on the outer wall of the conductor shielding layer, the outer wall of the insulating layer is sleeved with an insulating shielding layer, the outer wall of the insulating shielding layer is sleeved with a water-resisting layer, the outer wall of the water-resistant layer is sleeved with a metal shielding layer, the outer wall of the metal shielding layer is sleeved with a first flame-retardant layer, the outer wall of the first flame-retardant layer is sleeved with a waterproof layer, the outer wall of the waterproof layer is sleeved with a second flame-retardant layer, the outer wall of the second flame-retardant layer is sleeved with an armor layer, the outer wall of the armor layer is sleeved with a third flame-retardant layer, the outer wall of the third flame-retardant layer is sleeved with an outer sheath, the first flame-retardant layer, the second flame-retardant layer and the third flame-retardant layer are matched in the device, so that the overall flame-retardant capability of the cable is improved, and the outer sheath is made of a special material for the B1-grade cable, so that the overall performance of the cable is improved, and the normal work of the cable in a severe environment is ensured.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to an environment-friendly high-flame-retardant special medium-voltage cable.
Background
A cable is a device for transmitting electrical energy or signals, consisting of several or several groups of wires.
When the existing medium-voltage cable is used in rail transit, the cable used in the rail transit is poor in environment, the requirement for the performance of the cable is higher, and if the performance of the cable is poor, the normal operation of the rail transit can be affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an environment-friendly high-flame-retardant special medium-voltage cable to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: environment-friendly high fire-retardant special medium voltage cable includes: a conductor;
the outer wall of the conductor is sleeved with a conductor shielding layer, the outer wall of the conductor shielding layer is sleeved with an insulating layer, and the outer wall of the insulating layer is sleeved with an insulating shielding layer;
the insulation shielding layer outer wall is sleeved with a water resistance layer, the water resistance layer outer wall is sleeved with a metal shielding layer, the metal shielding layer outer wall is sleeved with a first flame-retardant layer, and the first flame-retardant layer outer wall is sleeved with a waterproof layer;
the fire-retardant coating comprises a waterproof layer, and is characterized in that a second fire-retardant layer is sleeved on the outer wall of the waterproof layer, an armor layer is sleeved on the outer wall of the second fire-retardant layer, a third fire-retardant layer is sleeved on the outer wall of the armor layer, and an outer sheath is sleeved on the outer wall of the third fire-retardant layer.
Preferably, the inner wall of the outer sheath is uniformly provided with reinforcing strips, the inner cavity of each reinforcing strip is provided with a through hole, and the reinforcing strips are arranged in an annular array.
Preferably, the metal shielding layer comprises a copper wire layer and a copper tape layer.
Preferably, the waterproof layer comprises an aluminum-plastic composite belt and a polyolefin isolation sleeve.
Preferably, the water-blocking layer is a semiconductive water-blocking tape.
Preferably, the armor layer is wrapped by a non-magnetic brass band, and the vertical section thickness of the armor layer is 0.13 mm.
Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of first fire-retardant layer, the fire-retardant layer of second and the fire-retardant layer of third in the device, increase the holistic anti fire-retardant ability of cable to the oversheath adopts B1 level cable special-purpose material, increases the holistic performance of cable, guarantees that the cable normally works under adverse circumstances.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a conductor; 2. a conductor shield layer; 3. an insulating layer; 4. an insulating shield layer; 5. a water resistant layer; 6. a metal shielding layer; 7. a first flame retardant layer; 8. a waterproof layer; 9. a second flame retardant layer; 10. an armor layer; 11. a third flame retardant layer; 12. an outer sheath; 13. a reinforcing strip.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1:
the utility model provides a technical scheme that: referring to fig. 1, an environment-friendly high flame retardant special medium voltage cable includes: a conductor 1;
the outer wall of the conductor 1 is sleeved with a conductor shielding layer 2, the outer wall of the conductor shielding layer 2 is sleeved with an insulating layer 3, the outer wall of the insulating layer 3 is sleeved with an insulating shielding layer 4, and the conductor shielding layer 2, the insulating layer 3 and the insulating shielding layer 4 are synchronously finished by three-layer co-extrusion, so that the conductor shielding layer 2, the insulating layer 3 and the insulating shielding layer 4 are completely integrated, the insulating property is improved, and the concentric uniformity of the product is well ensured;
referring to fig. 1, a water blocking layer 5 is sleeved on the outer wall of an insulating shielding layer 4, the water blocking layer 5 is a semiconductive water blocking tape, and the insulating shielding layer 4 is wrapped with 1 layer of the semiconductive water blocking tape in an overlapping manner, so that an electric field can be homogenized, and the water blocking performance of a product is improved;
referring to fig. 1, a metal shielding layer 6 is sleeved on the outer wall of a water blocking layer 5, the metal shielding layer 6 comprises a copper wire layer and a copper tape layer, the metal shielding layer 6 adopts a combined shielding structure that copper wires are wound and +1 layer of reverse copper strips are fastened, the copper wires adopt 61 soft copper wires with the diameter of 0.86mm for left sparse winding, the gap between adjacent copper wires is not more than 4mm, a layer of soft copper strips with the thickness of 0.10mm and the width of 15mm is wound outside and outside, and the requirement of system short-circuit current is met when a product is used;
referring to fig. 1, a first flame retardant layer 7 is sleeved on the outer wall of a metal shielding layer 6, and the first flame retardant layer 7 is a copper tape wrapped with 1 layer of halogen-free water-blocking flame retardant tape in an overlapping manner, so that the insulating property between the shielding layer and the waterproof layer is improved, and the influence of external heat transferred to the insulating layer on the cable combustion performance index during cable combustion can be effectively reduced;
referring to fig. 1, a waterproof layer 8 is sleeved on the outer wall of the first flame-retardant layer 7, the waterproof layer 8 comprises an aluminum-plastic composite tape and a polyolefin isolation sleeve, and the aluminum-plastic composite tape and the polyolefin isolation sleeve are longitudinally wrapped and bonded;
referring to fig. 1, a second flame retardant layer 9 is sleeved on the outer wall of a waterproof layer 8, and the second flame retardant layer 9 is formed by overlapping and wrapping 1 layer of halogen-free flame retardant wrapping tape outside an isolation sleeve, so that the water blocking and flame retardant properties can be effectively improved, and the damage and cracking of an oxygen barrier caused by the damage of an armor layer to the oxygen barrier can be avoided, so that the crusting of the oxygen barrier during combustion is influenced, and the performance index of the oxygen barrier during combustion is finally influenced;
referring to fig. 1, an armor layer 10 is sleeved on the outer wall of a second flame-retardant layer 9, the armor layer 10 is wrapped by a non-magnetic brass band, the vertical section thickness of the armor layer 10 is 0.13mm, the non-magnetic brass band with the thickness of 0.13mm is adopted for wrapping, the wrapping and covering rate is more than 20%, a mechanical protection effect is achieved on an insulating layer, the rat and ant prevention capability of a cable is improved, a third flame-retardant layer 11 is formed by overlapping a wrapped flame-retardant wrapping band outside the brass band, the air insulation space of the armor layer can be reduced, heat during cable combustion can be effectively reduced and transferred to the interior of the cable, and therefore the performance index during cable combustion is improved, and a third flame-retardant layer 11 is sleeved on the outer wall of the armor layer 10;
referring to fig. 1, an outer sheath 12 is sleeved on the outer wall of the third flame-retardant layer 11, and the sheath is made of a special material for a high flame-retardant B1-grade cable with ultraviolet resistance, rat resistance, ant resistance and cold resistance, so that the requirements of the combustion characteristic and the additional information characteristic of the cable and the requirements of a special use environment of a user are effectively ensured.
Example 2:
referring to fig. 1, on the basis of embodiment 1, the inner wall of the outer sheath 12 is uniformly provided with reinforcing strips 13, the reinforcing strips 13 are made of rubber, so that a buffering and pressure-resisting effect is achieved, the overall pressure-resisting capacity and bending-resisting capacity of the cable are improved, openings are formed in the inner cavity of each reinforcing strip 13 in a penetrating manner, and the reinforcing strips 13 are arranged in an annular array;
compared with the embodiment 1, the reinforcing strip 13 is added, the overall pressure resistance and bending resistance of the cable are improved, the overall use performance of the cable is improved, and the service life of the cable is prolonged.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The environment-friendly high-flame-retardant special medium-voltage cable is characterized in that: the method comprises the following steps: a conductor (1);
the outer wall of the conductor (1) is sleeved with a conductor shielding layer (2), the outer wall of the conductor shielding layer (2) is sleeved with an insulating layer (3), and the outer wall of the insulating layer (3) is sleeved with an insulating shielding layer (4);
the insulating and shielding layer (4) is sleeved with a water-resistant layer (5), the water-resistant layer (5) is sleeved with a metal shielding layer (6), the metal shielding layer (6) is sleeved with a first flame-retardant layer (7), and the first flame-retardant layer (7) is sleeved with a waterproof layer (8);
the fire-retardant coating is characterized in that a second fire-retardant layer (9) is sleeved on the outer wall of the waterproof layer (8), an armor layer (10) is sleeved on the outer wall of the second fire-retardant layer (9), a third fire-retardant layer (11) is sleeved on the outer wall of the armor layer (10), and an outer sheath (12) is sleeved on the outer wall of the third fire-retardant layer (11).
2. The environment-friendly high flame retardant special medium voltage cable according to claim 1, characterized in that: reinforcing strips (13) are uniformly arranged on the inner wall of the outer sheath (12), openings are formed in the inner cavity of each reinforcing strip (13) in a penetrating mode, and the reinforcing strips (13) are arranged in an annular array mode.
3. The environment-friendly high flame retardant special medium voltage cable according to claim 1, characterized in that: the metal shielding layer (6) comprises a copper wire layer and a copper strip layer.
4. The environment-friendly high flame retardant special medium voltage cable according to claim 1, characterized in that: the waterproof layer (8) comprises an aluminum-plastic composite belt and a polyolefin isolation sleeve.
5. The environment-friendly high flame retardant special medium voltage cable according to claim 1, characterized in that: the water-blocking layer (5) is a semi-conductive water-blocking tape.
6. The environment-friendly high-flame-retardant special medium voltage cable as claimed in claim 1, wherein: the armor layer (10) is wrapped by a non-magnetic brass band, and the vertical section thickness of the armor layer (10) is 0.13 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122788472.6U CN216528102U (en) | 2021-11-15 | 2021-11-15 | Environment-friendly high-flame-retardant special medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122788472.6U CN216528102U (en) | 2021-11-15 | 2021-11-15 | Environment-friendly high-flame-retardant special medium-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216528102U true CN216528102U (en) | 2022-05-13 |
Family
ID=81531479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122788472.6U Active CN216528102U (en) | 2021-11-15 | 2021-11-15 | Environment-friendly high-flame-retardant special medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216528102U (en) |
-
2021
- 2021-11-15 CN CN202122788472.6U patent/CN216528102U/en active Active
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