CN206921575U - A kind of lightning protected cable - Google Patents
A kind of lightning protected cable Download PDFInfo
- Publication number
- CN206921575U CN206921575U CN201720819621.1U CN201720819621U CN206921575U CN 206921575 U CN206921575 U CN 206921575U CN 201720819621 U CN201720819621 U CN 201720819621U CN 206921575 U CN206921575 U CN 206921575U
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- China
- Prior art keywords
- metal knitted
- wire
- metallic shield
- drainage thread
- shield film
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Abstract
The utility model discloses a kind of lightning protected cable, including cable body, the cable body mainly includes oversheath, and metal knitted housing is provided with the inwall of the oversheath；The inner side of the metal knitted housing is provided with interior filling, the inner side of wherein interior filling is provided with more piece-root grafting ground wires and multiple conducting wires, and ground wire insulating sheath and wire insulating sheath are respectively coated by the outside of ground wire and wire, traction steel wire is also embedded with interior filling, connection in electrical contact between drainage thread and metallic shield film and metal knitted housing in the utility model, drainage thread can export the high current that metal knitted housing is penetrated when being struck by lightning, the high current on metallic shield film can also pass to drainage thread and be grounded extraction simultaneously simultaneously, entirety can avoid metallic shield film from puncturing by thunderbolt, so as to protect the normal use of wire, therefore whole service life is longer.
Description
Technical field
Field of cables is the utility model is related to, more particularly, to a kind of lightning protected cable.
Background technology
In order to improve the performance of communications cable lightning protection, scientific and technical personnel try to reduce the resistance of cable metal cables skin, and increase
Insulation compressive resistance between wire covering and heart line.For example cable skin uses aluminium skin, and heart line protective layer uses sheet lead；Work as aluminium
When skin is identical with sheet lead thickness, the resistance of aluminium skin is only the 1/7 of sheet lead resistance.Such aluminium skin cable has higher lightning protection
Ability.But it is inadequate only with aluminium skin, also has plastic protective cover outside usual aluminium skin.And the plastic protective cover in thunderbolt
It is easily breakdown, form pin hole.In the presence of rainwater and humidity the metal sheath of cable can be caused to be corroded.
Existing metal lightning protection structure is mostly the metal conductor layer of individual layer simultaneously, overall gradually to corrode effect in outdoor environment
It is easily damaged under fruit.
The content of the invention
The utility model is to overcome the above situation insufficient, it is desirable to provide a kind of technical scheme that can be solved the above problems.
A kind of lightning protected cable, including cable body, the cable body mainly include oversheath, the inwall of the oversheath
On be provided with metal knitted housing, form metallic shielding structure using metal knitted housing, can not only prevent outer
Boundary's electromagnetic interference, while metal knitted housing has the function that to form lightning protection barrier；The inner side of the metal knitted housing
Provided with interior filling, wherein the inner side of interior filling is provided with more piece-root grafting ground wires and multiple conducting wires, and it is grounded outer with wire
Side has been respectively coated by ground wire insulating sheath and wire insulating sheath, is also embedded with traction steel wire in interior filling, utilizes traction
Steel wire make it that whole cable pulling laying is more convenient；Metallic shield is provided between the interior filling and metal knitted housing
Film, realize that secondary metals shield using metallic shield film, metallic shield film plays the effect of water conservancy diversion, while metallic shield film and
Metal knitted housing can reduce electrical breakdown caused by thunderbolt；Buried between the metallic shield film and metal knitted housing
It is electrical wherein between drainage thread and metallic shield film and metal knitted housing provided with drainage thread made of more metallic conductors
Contact connection, drainage thread can export the high current that metal knitted housing is penetrated when being struck by lightning, while on metallic shield film
High current simultaneously can also pass to drainage thread and be grounded extraction, can integrally avoid metallic shield film by thunderbolt
Breakdown, so as to protect the normal use of wire, therefore whole service life is longer.
As further program of the utility model：The interior filling is made of PP materials.
As further program of the utility model：The drainage thread at least uses more than three.
As further program of the utility model：The drainage thread is made of copper material, and monolithic conductive drainage effect goes out
Color.
The beneficial effects of the utility model：Drainage thread and metallic shield film and metal knitted housing in the utility model
Between connection in electrical contact, drainage thread penetrate the high current export of metal knitted housing when will can be struck by lightning, while in metal
High current on screened film can also pass to drainage thread and be grounded extraction simultaneously, can integrally avoid metallic shield film from meeting with
Punctured by thunderbolt, so as to protect the normal use of wire, therefore whole service life is longer.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is sectional view of the present utility model.
In figure：The metal knitted housing of 1- oversheaths, 2-, 3- wire insulating sheaths, 4- wires, 5- metallic shields film, 6-
Interior filling, 7- traction steel wires, 8- are connected wires, 9- ground wires insulating sheath, 10- drainage threads.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of lightning protected cable, including cable body, the cable body master
To include oversheath 1, be provided with metal knitted housing 2 on the inwall of the oversheath 1, utilize metal knitted housing
2 form metallic shielding structures, can not only prevent outside electromagnetic interference, while metal knitted housing 2 has and forms lightning-protecting screen
The effect of barrier；The inner side of the metal knitted housing 2 is provided with interior filling 6, wherein the inner side of interior filling 6 is provided with more piece-root graftings
Ground wire 8 and multiple conducting wires 4, and the outside of ground wire 8 and wire 4 has been respectively coated by ground wire insulating sheath 9 and wire is exhausted
Edge sheath 3, interior fill in 6 are also embedded with traction steel wire 7, make it that whole cable pulling laying is more convenient using traction steel wire 7；
Metallic shield film 5 is provided between the interior filling 6 and metal knitted housing 2, secondary metals screen is realized using metallic shield film 5
Cover, metallic shield film 5 plays the effect of water conservancy diversion, while metallic shield film 5 and metal knitted housing 2 can reduce thunderbolt and make
Into electrical breakdown；It is embedded with made of more metallic conductors and drains between the metallic shield film 5 and metal knitted housing 2
Connection in electrical contact between line 10, wherein drainage thread 10 and metallic shield film 5 and metal knitted housing 2, drainage thread 10 can
So that the high current that metal knitted housing 2 is penetrated when being struck by lightning to be exported, while the high current on metallic shield film 5 also may be used simultaneously
To pass to drainage thread 10 and be grounded extraction, metallic shield film 5 can be integrally avoided to puncture by thunderbolt, so as to protect
The normal use of wire 4, therefore whole service life is longer.
The interior filling 6 is made of PP materials.
The drainage thread 10 at least uses more than three.
The drainage thread 10 is made of copper material, and monolithic conductive drainage effect is outstanding.
Operation principle of the present utility model is：It is electric between drainage thread 10 and metallic shield film 5 and metal knitted housing 2
Property contact connection, drainage thread 10 penetrate the high current export of metal knitted housing 2 when will can be struck by lightning, while in metallic shield
High current on film 5 can also pass to drainage thread 10 and be grounded extraction simultaneously, integrally metallic shield film 5 can be avoided to meet with
Punctured by thunderbolt, so as to protect the normal use of wire 4, therefore whole service life is longer.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (4)
1. a kind of lightning protected cable, including cable body, the cable body mainly includes oversheath, on the inwall of the oversheath
It is provided with metal knitted housing；The inner side of the metal knitted housing is provided with interior filling, wherein the inner side of interior filling
Position is provided with more piece-root grafting ground wires and multiple conducting wires, and be grounded and wire on the outside of be respectively coated by ground wire insulating sheath with
And wire insulating sheath, traction steel wire is also embedded with interior filling, it is characterised in that the interior filling and metal knitted housing
Between be provided with metallic shield film；It is embedded between the metallic shield film and metal knitted housing made of more metallic conductors
Connection in electrical contact between drainage thread, wherein drainage thread and metallic shield film and metal knitted housing.
2. lightning protected cable according to claim 1, it is characterised in that the interior filling is made of PP materials.
3. lightning protected cable according to claim 1, it is characterised in that the drainage thread at least uses more than three.
4. lightning protected cable according to claim 1, it is characterised in that the drainage thread is made of copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819621.1U CN206921575U (en) | 2017-07-07 | 2017-07-07 | A kind of lightning protected cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819621.1U CN206921575U (en) | 2017-07-07 | 2017-07-07 | A kind of lightning protected cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206921575U true CN206921575U (en) | 2018-01-23 |
Family
ID=61336174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819621.1U Active CN206921575U (en) | 2017-07-07 | 2017-07-07 | A kind of lightning protected cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206921575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885507A (en) * | 2019-11-29 | 2021-06-01 | 广州番禺电缆集团有限公司 | Lightning-protection anti-interference cable |
-
2017
- 2017-07-07 CN CN201720819621.1U patent/CN206921575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885507A (en) * | 2019-11-29 | 2021-06-01 | 广州番禺电缆集团有限公司 | Lightning-protection anti-interference cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 1401, building 6, phase II, Yinchuan IBI breeding center, 490 Ning'an street, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region, 750000 Patentee after: Zhongke Tianji Technology Co.,Ltd. Address before: Room 1401, building 6, phase II, Yinchuan IBI breeding center, 490 Ning'an street, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region, 750000 Patentee before: NINGXIA CN-SC LIGHTING PROTECTION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |