CN210326341U - Low-temperature-resistant prefabricated cable - Google Patents
Low-temperature-resistant prefabricated cable Download PDFInfo
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- CN210326341U CN210326341U CN201920921313.9U CN201920921313U CN210326341U CN 210326341 U CN210326341 U CN 210326341U CN 201920921313 U CN201920921313 U CN 201920921313U CN 210326341 U CN210326341 U CN 210326341U
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 35
- 229910052802 copper Inorganic materials 0.000 claims description 35
- 239000010949 copper Substances 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 20
- 238000002788 crimping Methods 0.000 claims description 19
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of substation equipment, concretely relates to low temperature resistant prefabricated cable. One end of a cable aviation plug is in compression joint with a cable main cable through a sealing compression joint pipe, and a cable and a gold-plated cable female ferrule are integrated in the cable aviation plug; cable branches and branch male insertion cores are integrated inside the prefabricated cable socket end, and insulating sealant is poured; the cable aviation plug is in plug connection with the prefabricated cable socket end, the cable connection installation is completed through the cable main cable and the cable branch, and the cable aviation plug is connected with external electrical equipment through the prefabricated cable branch. The plug-and-play type LED lamp has the characteristics of simple structure, reasonable design, plug and play, convenience and quickness. The tensile strength of the cable branch and the socket end and the sealing performance of the branch and the socket end can be improved; avoid producing the water of congealing in the socket, prevent that the earth connection sheath from frost crack. And the ground wire is firm, should not drop, and sealing performance and insulating nature are stronger. The cable is easy to distinguish and search, the field construction difficulty is reduced, the cable stripping process is omitted, and the field construction period is shortened.
Description
Technical Field
The utility model belongs to the technical field of substation equipment, concretely relates to low temperature resistant prefabricated cable.
Background
Traditional transformer substation, intelligent substation and modular transformer substation, to the design, produce, the construction has all provided very high requirement, adopts mill's prefabricated formula structure gradually, greatly reduced the site operation degree of difficulty, shortened construction cycle, plug-and-play's prefabricated cable has also obtained the large tracts of land and has used widely.
Currently, the prefabricated cable is often produced in the following way:
(1) selecting the type of the cable: most of the raw materials are ZR-KVVRP2-22 or ZR-KVVRP 22;
(2) and (4) packaging the prefabricated cable connector, wherein a screw clamp locking structure is adopted at the joint part of the connector and the cable.
The prior art has the following disadvantages:
(1) the inner sheath and the outer sheath of the cable sheath of two cable types of ZR-KVVRP2-22 or ZR-KVVRP22 have the problems of poor low temperature resistance, quick aging of low temperature brittleness performance and the like;
(2) the cable and the connector adopt a screw clamp locking structure which has sealing problem;
(3) the function of preventing water condensation cannot be achieved.
Disclosure of Invention
The utility model provides a low temperature resistant prefabricated cable aiming at the deficiencies of the prior art. Its purpose is in order to provide a simple structure, convenient operation's prefabricated cable that has stronger cold-resistant performance, stronger performance and increase of service life.
The utility model provides a technical scheme that its technical problem adopted is:
the low-temperature-resistant prefabricated cable is characterized in that one end of a cable aviation plug is in compression joint with a cable main cable through a sealing compression joint pipe, and a cable and a gold-plated cable female ferrule are integrated in the cable aviation plug; cable branches and branch male insertion cores are integrated inside the prefabricated cable socket end, and insulating sealant is poured; the cable aviation plug is in plug connection with the prefabricated cable socket end, the cable connection installation is completed through the cable main cable and the cable branch, and the cable aviation plug is connected with external electrical equipment through the prefabricated cable branch.
A low-temperature-resistant PE cable inner sheath and a cable outer sheath are arranged outside the cable main cable; the steel strip armor layer is arranged between the low-temperature-resistant PE cable inner sheath and the cable outer sheath; the cable main cable penetrates through the prefabricated cable aviation plug, is subjected to insulation sealing packaging and then is connected through a sealing pressure connection pipe in a pressure connection mode; two ends of the cable main cable are connected with a cable aviation plug, a steel tape armor layer PE material sheath grounding wire and a shielding layer grounding wire; the steel tape armor layer PE material sheath grounding wire is connected with the grounding terminal strip; the shielding layer grounding wire and the steel tape armoring layer PE sheath grounding wire are connected with a copper shielding layer welding grounding wire and a steel tape layer PE sheath grounding wire respectively; the inner sheath 2 of the low temperature resistant PE cable is sleeved outside the copper shielding layer, and the copper shielding layer is connected with a welding ground wire of the copper shielding layer.
The cable main cable adopts a multi-core multi-strand armored flexible cable, the length of the cable main cable is based on actual measurement, the cable main cable is prefabricated before delivery, and the cable main cable is butted with a socket in a cabinet after being laid on site, and the cable main cable can be used in a plug-and-play mode.
The low-temperature-resistant PE cable inner sheath is used for protecting a cable at an extremely low temperature, the copper shielding layer is used for shielding a cable signal, the copper shielding layer is in welded connection with a welding ground wire of the copper shielding layer, and the welding ground wire of the copper shielding layer is a ground wire with the outer part provided with the low-temperature-resistant PE sheath; and the insulating heat-shrinkable tube is arranged outside the copper shielding layer and the steel strip armor layer, is used for packaging a welding spot of the copper shielding layer and a welding spot of the steel strip armor layer and is insulated from the outside.
The outer sheath of the grounding wire with the steel-tape armoring layer PE material sheath is made of low-temperature-resistant PE material, and the grounding wire with the steel-tape armoring layer PE material sheath is used for leading out current of the steel-tape armoring layer and releasing the current; the shielding layer grounding wire is a grounding wire of a cable shielding layer, the outer sheath is made of low-temperature-resistant material PE, and the shielding layer grounding wire leads the induction electromagnetism of the copper shielding layer out of the cable and releases the induction electromagnetism; the shielding layer grounding wire and the steel strip armor layer PE sheath grounding wire are respectively welded on the copper shielding layer welding grounding wire and the steel strip layer PE sheath grounding wire and then packaged, and the other end of the steel strip layer PE sheath grounding wire is connected to the plant grounding network.
The sealing and crimping pipe is used for crimping the tail parts of the main cable and the prefabricated cable branch, and the main cable and the prefabricated cable branch are sealed and connected together; the prefabricated cable branch is directly connected with the device from the prefabricated cable socket end; the cable branch and the branch male insertion core are integrated in the prefabricated cable socket end, insulation sealant is poured, an aviation socket and a fixing plate are arranged, all in-cabinet wiring is completed before delivery, and after the screen cabinet is placed in place, the aviation socket is in butt joint with a prefabricated cable main cable plug aviation plug to complete cable wiring.
The length of the branch of the prefabricated cable is 2-20 meters, and a single multi-strand wire is adopted.
When the prefabricated cable branch in the prefabricated cable socket end passes through the prefabricated cable socket end, insulation sealing packaging is carried out, and then a sealing crimping pipe is adopted for crimping; the cable core winding pipe is sleeved outside the prefabricated cable branch and used for protecting the cable branch; the cable coding pipe is sleeved outside the cable core winding pipe and is contacted with the end of the prefabricated cable socket; the cable core winding pipe is used for cable identity identification and is an identity card of the cable. A cable coding tube is additionally arranged at the socket end of the prefabricated cable, a contact pin and a unique identification of the contact pin are additionally arranged on a cable core of a prefabricated cable branch, and the cable core number and the contact pin of the prefabricated cable branch are used for distinguishing the core number and the specification of the cable core; the wiring in the cabinet is completed through the A-end electric wiring terminal block and the B-end wiring terminal block of the prefabricated cable branch part, and the prefabricated cable socket end is connected to the fixing plate.
The fixing plate is an installable piece and is installed on the prefabricated cable socket through nuts and bolts or installed on equipment through nuts and bolts.
The utility model has the advantages of it is following and beneficial effect:
the utility model discloses the cable has simple structure, reasonable in design's characteristics of showing. The utility model improves the tensile strength of the cable branch and the socket end and the sealing performance of the branch and the socket end; the possibility of water condensation caused by air entering the socket under the extremely cold condition is avoided. The possibility of frost crack of the grounding wire sheath caused by improper wiring material selection is eliminated. Additionally, the utility model discloses a batch production preparation shielding layer grounding wire and armor become the grounding wire, adopt welding process, make the grounding wire more firm, should not drop. The utility model discloses still adopt the insulating pyrocondensation pipe of multilayer encapsulation welding point, make the welding point more firm and sealing performance and insulating nature stronger.
The utility model discloses cable and cable aviation plug are through sealed crimping pipe crimping encapsulation, make the tensile strength and the sealing performance of whole cable have the improvement of quality. The utility model discloses all have the cable serial number behind the connector at main push-towing rope both ends, the cable is distinguished easily, more should seek. Prefabricated cable is plug-and-play, convenient and fast: the difficulty of site construction is reduced, and various complicated cable stripping processes are omitted. The on-site construction period is greatly shortened, and the cable plug end and the socket end installed in the cabinet before leaving factory are inserted in the screen to complete cable connection.
Drawings
To facilitate understanding and implementing the present invention by those of ordinary skill in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but it should be understood that the scope of the present invention is not limited by the specific embodiments.
Fig. 1 is a schematic view of the structure of the aviation cable plug and the cable of the present invention;
fig. 2 is a schematic structural view of the aviation cable socket and the cable branch of the present invention;
fig. 3 is a schematic diagram of the structure of the implementation state of the present invention.
In the figure: the cable aviation plug comprises a cable aviation plug 1, a low-temperature-resistant PE cable inner sheath 2, a copper shielding layer 3, a copper shielding layer welding ground wire 4, a shielding layer grounding wire 5, a sealing crimping pipe 6, an insulating heat-shrinkable tube 7, a steel strip armoring layer 8, a steel strip layer PE sheath grounding wire 9, a steel strip armoring layer PE sheath grounding wire 10, a cable main cable 11, a cable coding pipe 12, a prefabricated cable socket end 13, a cable core winding pipe 14, a prefabricated cable branch 15, a fixing plate 16 and a cable outer sheath 17.
Detailed Description
The utility model relates to a low temperature resistant prefabricated cable, as shown in fig. 1-3, the one end of cable aviation plug 1 is through sealed crimping pipe 6 crimping cable main push-towing rope 11, the female lock pin of the inside integrated cable of cable aviation plug 1 and gilding cable. And a cable branch and a branch male insertion core are integrated inside the prefabricated cable socket end 13, and insulation sealant is poured. During the use, cable aviation plug 1 pegs graft with prefabricated cable socket end 13, accomplishes the cable junction installation through cable main push-towing rope 11 and cable branch 15, connects outside electrical equipment through prefabricated cable branch 15, accomplishes the electric current and switches on, connects ground wire 5 and shielding layer welded steel band armor PE material sheath earth connection 10 through the shielding layer of armor, introduces the induced-current of cable product to the ground.
The outer part of the main cable 11 is provided with a low temperature resistant PE cable inner sheath 2 and a cable outer sheath 17 which are made of low temperature resistant PE materials and used for protecting all parts in the cable.
When the cable main cable 11 penetrates through the prefabricated cable aviation plug 1, the cable main cable is subjected to insulation sealing and then is subjected to compression joint through the sealing pressure joint pipe 6; the utility model discloses cable main push-towing rope 11 and cable aviation plug 1 make the tensile property and the sealing performance of whole cable have a qualitative improvement through the 6 crimping encapsulation backs of sealed crimping pipe.
The cable main cable 11 adopts a multi-core multi-strand armored flexible cable, the length is based on actual measurement, and the steel tape armored layer PE material sheath grounding wire 10 is connected with the grounding terminal row. Two ends of the prefabricated cable main cable 11 are connected with a cable aviation plug 1, a steel tape armor layer PE material sheath grounding wire 10 and a shielding layer grounding wire 5. The length of the main cable of the cable is measured on site, the main cable is prefabricated before delivery, and is butted with the socket in the cabinet after being laid on site, and the main cable can be used in a plug-and-play mode.
The outer sheath of the steel-tape armoring layer PE material sheath grounding wire 10 is made of low-temperature-resistant materials PE, and the steel-tape armoring layer PE material sheath grounding wire 10 is used for leading out current of the steel-tape armoring layer 8 and releasing the current. The steel tape armor layer 8 is used for protecting the cable and increasing the pressure resistance of the cable. The steel strip armor layer 8 is arranged between the low temperature resistant PE cable inner sheath and the cable outer sheath.
The low-temperature-resistant PE cable inner sheath 2 is used for protecting a cable at an extreme low temperature and is directly sleeved outside the copper shielding layer 3. The copper shielding layer 3 is sleeved inside the inner sheath 2 of the low-temperature-resistant PE cable. Copper shield layer 3 is used for the cable signal shielding, and copper shield layer solder wire 4 is the outside earth connection that is equipped with low temperature resistant PE material sheath, and copper shield layer 3 and copper shield layer solder wire 4 welded connection.
The insulating heat-shrinkable tube 7 is used for packaging a welding spot of the copper shielding layer 3 and a welding spot of the steel tape armor layer 8 and is insulated from the outside, and the insulating heat-shrinkable tube 7 is provided with one layer.
The shielding layer grounding wire 5 is a grounding wire of the cable shielding layer 3, the outer sheath is made of low-temperature-resistant material PE, and the shielding layer grounding wire 5 can lead out induction electromagnetism of the copper shielding layer 3 to the cable and release the induction electromagnetism.
The cable main cable grounding wire, namely the shielding layer grounding wire 5 and the steel tape armoring layer PE sheath grounding wire 10, is manufactured in a factory mode, the copper shielding layer grounding wire 4 and the steel tape layer PE sheath grounding wire 9 are respectively welded, and then packaging is carried out. The other end of the steel belt layer PE material sheath grounding wire 9 is connected or arranged on a plant grounding network.
The sealing and crimping pipe 6 is used for crimping the tail parts of the cable main cable 11 and the prefabricated cable branch 15, so that the cable main cable and the prefabricated cable branch are sealed and combined together, and the high tensile and sealing requirements are met.
The length of the prefabricated cable branch 15 is 2-20 m, a single multi-strand wire is adopted, and the device is directly connected from the prefabricated cable socket end 13, so that a guide rail terminal is omitted. The cable branch and the branch male insertion core are integrated in the prefabricated cable socket end 13, insulation sealant is poured, an aviation socket and a fixing plate 16 are arranged, all in-cabinet wiring is completed before delivery, and after the screen cabinet is placed in place, the aviation socket is in butt joint with a prefabricated cable main cable plug aviation plug to complete cable wiring.
When the prefabricated cable branch 15 in the prefabricated cable socket end 13 passes through the prefabricated cable socket end 13, the prefabricated cable branch is subjected to insulation sealing packaging, and then a special sealing crimping pipe 6 is adopted for crimping; the cable core winding pipe 14 is sleeved outside the prefabricated cable branch 15 and used for protecting the cable branch. The cable coding tube 12 is sleeved outside the cable core winding tube 14 and is in contact with the prefabricated cable socket end 13; the cable core winding pipe 14 is used for cable identification and is an identification card of the cable. The cable coding tube 12 is additionally arranged at the socket end 13 of the prefabricated cable, the contact pin and the unique identification of the contact pin are additionally arranged on the cable core of the prefabricated cable branch 15, and the cable core number and the contact pin of the prefabricated cable branch 15 are used for distinguishing the core number and the specification of the cable core. In use, in-cabinet wiring is completed by the a-end and B-end electrical terminal blocks of the prefabricated cable branch 15, the prefabricated cable socket end 13 being mounted on the fixed plate 16.
The fixing plate 16 is a mountable part which can be mounted to the prefabricated cable socket by means of nut and bolt and can be mounted to the equipment by means of nut and bolt.
During the specific use, as shown in fig. 3, will the utility model discloses cable main push-towing rope 11's both ends are respectively through cable aviation plug 1 with two prefabricated cable socket end 13 peg graft can.
Claims (9)
1. Low temperature resistant prefabricated cable, characterized by: one end of the cable aviation plug is in compression joint with a cable main cable through a sealing compression joint pipe, and a cable and a gold-plated cable female ferrule are integrated in the cable aviation plug; cable branches and branch male insertion cores are integrated inside the prefabricated cable socket end, and insulating sealant is poured; the cable aviation plug is in plug connection with the prefabricated cable socket end, the cable connection installation is completed through the cable main cable and the cable branch, and the cable aviation plug is connected with external electrical equipment through the prefabricated cable branch.
2. The low temperature resistant preformed cable of claim 1, wherein: a low-temperature-resistant PE cable inner sheath and a cable outer sheath are arranged outside the cable main cable; the steel strip armor layer is arranged between the low-temperature-resistant PE cable inner sheath and the cable outer sheath; the cable main cable penetrates through the prefabricated cable aviation plug, is subjected to insulation sealing packaging and then is connected through a sealing pressure connection pipe in a pressure connection mode; two ends of the cable main cable are connected with a cable aviation plug, a steel tape armor layer PE material sheath grounding wire and a shielding layer grounding wire; the steel tape armor layer PE material sheath grounding wire is connected with the grounding terminal strip; the shielding layer grounding wire and the steel tape armoring layer PE sheath grounding wire are connected with a copper shielding layer welding grounding wire and a steel tape layer PE sheath grounding wire respectively; the inner sheath of the low temperature resistant PE cable is sleeved outside the copper shielding layer, and the copper shielding layer is connected with a welding ground wire of the copper shielding layer.
3. The low temperature resistant preformed cable of claim 1, wherein: the cable main cable adopts a multi-core multi-strand armored flexible cable, the length of the cable main cable is based on actual measurement, the cable main cable is prefabricated before delivery, and the cable main cable is butted with a socket in a cabinet after being laid on site, and the cable main cable can be used in a plug-and-play mode.
4. The low temperature resistant preformed cable of claim 2, wherein: the low-temperature-resistant PE cable inner sheath is used for protecting a cable at an extremely low temperature, the copper shielding layer is used for shielding a cable signal, the copper shielding layer is in welded connection with a welding ground wire of the copper shielding layer, and the welding ground wire of the copper shielding layer is a ground wire with the outer part provided with the low-temperature-resistant PE sheath; and the insulating heat-shrinkable tube is arranged outside the copper shielding layer and the steel strip armor layer, is used for packaging a welding spot of the copper shielding layer and a welding spot of the steel strip armor layer and is insulated from the outside.
5. The low temperature resistant preformed cable of claim 2, wherein: the outer sheath of the grounding wire with the steel-tape armoring layer PE material sheath is made of low-temperature-resistant PE material, and the grounding wire with the steel-tape armoring layer PE material sheath is used for leading out current of the steel-tape armoring layer and releasing the current; the shielding layer grounding wire is a grounding wire of a cable shielding layer, the outer sheath is made of low-temperature-resistant material PE, and the shielding layer grounding wire leads the induction electromagnetism of the copper shielding layer out of the cable and releases the induction electromagnetism; the shielding layer grounding wire and the steel strip armor layer PE sheath grounding wire are respectively welded on the copper shielding layer welding grounding wire and the steel strip layer PE sheath grounding wire and then packaged, and the other end of the steel strip layer PE sheath grounding wire is connected to the plant grounding network.
6. The low temperature resistant preformed cable of claim 1, wherein: the sealing and crimping pipe is used for crimping the tail parts of the main cable and the prefabricated cable branch, and the main cable and the prefabricated cable branch are sealed and connected together; the prefabricated cable branch is directly connected with the device from the prefabricated cable socket end; the cable cabinet is also provided with an aviation socket and a fixing plate, all in-cabinet connections are completed before delivery, and after the screen cabinet is placed in place, the aviation socket is in butt joint with a prefabricated cable main cable plug aviation plug to complete cable connection.
7. The low temperature resistant preformed cable of claim 1, wherein: the length of the branch of the prefabricated cable is 2-20 meters, and a single multi-strand wire is adopted.
8. The low temperature resistant preformed cable of claim 2, wherein: when the prefabricated cable branch in the prefabricated cable socket end passes through the prefabricated cable socket end, insulation sealing packaging is carried out, and then a sealing crimping pipe is adopted for crimping; a cable core winding pipe is sleeved outside the prefabricated cable branch and used for protecting the cable branch; the cable coding pipe is sleeved outside the cable core winding pipe and is contacted with the end of the prefabricated cable socket; the cable core winding pipe is used for cable identity identification and is an identity card of the cable; a cable coding tube is additionally arranged at the socket end of the prefabricated cable, a contact pin and a unique identification of the contact pin are additionally arranged on a cable core of a prefabricated cable branch, and the cable core number and the contact pin of the prefabricated cable branch are used for distinguishing the core number and the specification of the cable core; the wiring in the cabinet is completed through the A-end electric wiring terminal block and the B-end wiring terminal block of the prefabricated cable branch part, and the prefabricated cable socket end is connected to the fixing plate.
9. The low temperature resistant preformed cable of claim 8, wherein: the fixing plate is an installable piece and is installed on the prefabricated cable socket through nuts and bolts or installed on equipment through nuts and bolts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018221321928 | 2018-12-18 | ||
| CN201822132192 | 2018-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210326341U true CN210326341U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920921313.9U Active CN210326341U (en) | 2018-12-18 | 2019-06-19 | Low-temperature-resistant prefabricated cable |
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| CN (1) | CN210326341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311265A (en) * | 2018-12-18 | 2019-10-08 | 国网内蒙古东部电力有限公司经济技术研究院 | Low temperature resistant pre-fabricated electric cables |
-
2019
- 2019-06-19 CN CN201920921313.9U patent/CN210326341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311265A (en) * | 2018-12-18 | 2019-10-08 | 国网内蒙古东部电力有限公司经济技术研究院 | Low temperature resistant pre-fabricated electric cables |
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