CN208157098U - A kind of lightning protection direct-buried cable - Google Patents
A kind of lightning protection direct-buried cable Download PDFInfo
- Publication number
- CN208157098U CN208157098U CN201820683558.8U CN201820683558U CN208157098U CN 208157098 U CN208157098 U CN 208157098U CN 201820683558 U CN201820683558 U CN 201820683558U CN 208157098 U CN208157098 U CN 208157098U
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- Prior art keywords
- conductor
- core
- neutral
- lightning protection
- outside
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- 230000007935 neutral effect Effects 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 238000004132 cross linking Methods 0.000 claims description 8
- 229920001684 low density polyethylene Polymers 0.000 claims description 8
- 239000004702 low-density polyethylene Substances 0.000 claims description 8
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 5
- 238000004078 waterproofing Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920000092 linear low density polyethylene Polymers 0.000 description 4
- 239000004707 linear low-density polyethylene Substances 0.000 description 4
- 235000009854 Cucurbita moschata Nutrition 0.000 description 3
- 240000001980 Cucurbita pepo Species 0.000 description 3
- 235000009852 Cucurbita pepo Nutrition 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 235000020354 squash Nutrition 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model relates to a kind of lightning protection direct-buried cables, it includes conductor, it is extruded outside the conductor equipped with insulating layer, they form conductive unit, the conductive unit is at least arranged two, filling is equipped in the conductive unit outer gap, they form cable core, it is extruded outside cable core equipped with inner sheath, neutral core and semiconducting filler item are equipped in the inner sheath space outside, the neutrality core includes neutral cable core conductor, it extrudes outside the neutral cable core conductor equipped with semi-conductive layer, it extrudes outside the neutral core and semiconducting filler item equipped with oversheath.The utility model can improve cable safety in operation immediately by current lead-through to the earth when there is thunder and lightning.
Description
Technical field
The utility model relates to a kind of cables, and in particular to a kind of lightning protection direct-buried cable.
Background technique
As to open air, the exploitation of resource, engineering of the power cable directly buried installation in underground is more and more, and for
Cable safety management is just more difficult, especially when outdoor environment is severe, when there is phenomena such as thunder and lightning.It mainly takes to cable at present
Sheath progress contacts multipairly, installs earthing or grounding means.This not only adds laying operating costs, while also increasing moisture intrusion
The probability of cable causes the reduction of cable service life.
Summary of the invention
Goal of the invention：The purpose of this utility model is to overcome deficiencies in the prior art, and providing one kind is having thunder and lightning
When can immediately by current lead-through to the earth, improve cable safety in operation lightning protection direct-buried cable.
Technical solution：In order to solve the above-mentioned technical problem, a kind of lightning protection direct-buried cable described in the utility model, it includes
Conductor is extruded outside the conductor equipped with insulating layer, they form conductive unit, and the conductive unit is at least arranged two,
It is equipped with filling in the conductive unit outer gap, they form cable core, are extruded outside cable core equipped with inner sheath, described interior
Sheath space outside is equipped with neutral core and semiconducting filler item, and the neutrality core includes neutral cable core conductor, in described
Property cable core conductor outside extrude equipped with semi-conductive layer, extrude outside the neutral core and semiconducting filler item equipped with outer shield
Set.
The conductor and neutral cable core conductor are all made of tin plating copper stranded conductor.
The insulating layer is made of crosslinked polyethylene or polyethylene.
The filling is made of waterproofing rope.
The inner sheath is made of waterproof linear low density polyethylene, and thickness is not less than 2mm.
The semi-conductive layer and semiconducting filler item all use low density polyethylene (LDPE) to be made with conductive black.
The oversheath is cross-linking type semiconductive set, and thickness is greater than 3mm.
Neutral cable core conductor is wrapped in outside master core protective layer after being extruded using semiconductive, and completely by semiconductive oversheath
Package, when there is thunder and lightning generation, the electric current moment that the neutral conductor passes through is switched among the earth, guarantees the safety of operation power.
Neutral cable core conductor total sectional area is determined according to master core sectional area.Extrude semiconductive neutral core symmetrically
It is wrapped in outside inner sheath, gap is filled using semiconducting filler item between the core of center.
Oversheath uses the semiconductive material of cross-linking type.Using ethylene-vinyl acetate as base-material, conductive black is added, it is quick
It after the mixing such as agent squeeze out, is crosslinked using irradiation technique, crosslinking makes sheath have excellent mechanical performance.Oversheath squeezes out
Using squash type, the gap outside all neutral cores is filled up, neutral core moment when being powered is protected to be linked into electric current greatly.
Oversheath has semiconduction, excellent physical mechanical property and waterproofness.
Insulation uses crosslinked polyethylene or polyethylene, and inner sheath uses linear low density polyethylene, all has excellent anti-
It is aqueous, prevent the moisture intrusion effect insulation performance in direct-burried soil.
Beneficial effect：Compared with prior art, remarkable advantage is the utility model：The setting of the utility model overall structure
Rationally, insulating layer is made of crosslinked polyethylene or polyethylene, has an excellent electrical insulation properties, physical mechanical property and anti-
It is aqueous；It is filled using waterproofing rope, while cable is filled rounding, prevents the intrusion of moisture in external environment；Inner sheath uses
The excellent linear low density polyethylene of waterproof performance, thickness are not less than 2mm；Semi-conductive layer and semiconducting filler item use low-density
The mixture of polyethylene and conductive black, electric conductivity are designed as slightly above oversheath, to guarantee the thunder by neutral core
Electric or other fault current smooth moments are introduced among the earth by semi-conductive layer and oversheath, the operation of protection cable and the external world
The safety of environment；Oversheath uses the semiconductive material of cross-linking type, using ethylene-vinyl acetate as base-material, adds conductive black,
It after the mixing such as sensitizer squeeze out, is crosslinked using irradiation technique, oversheath, which squeezes out, uses squash type, fills up all neutral cores
Outer gap, neutral core is fully wrapped around, protect neutral core moment when being powered to be linked into electric current greatly, oversheath tool
There are semiconduction, excellent physical mechanical property and waterproofness, the radial resistivity of oversheath reaches 40 Ω .m, and tensile strength reaches
To 10N/mm2。
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of lightning protection direct-buried cable described in the utility model, it includes conductor 1, outside the conductor 1
Portion is extruded equipped with insulating layer 2, they form conductive unit, and the conductive unit is at least arranged two, outside the conductive unit
Portion gap is equipped with filling 3, they form cable core, are extruded outside cable core equipped with inner sheath 4, in 4 space outside of inner sheath
Equipped with neutral core and semiconducting filler item 5, the neutrality core includes neutral cable core conductor 6, in the neutral cable core conductor 6
Outside is extruded equipped with semi-conductive layer 7, is extruded outside the neutral core and semiconducting filler item 5 equipped with oversheath 8；It is described to lead
Body 1 and neutral cable core conductor 6 are all made of tin plating copper stranded conductor；The insulating layer 2 is made of crosslinked polyethylene or polyethylene；
The filling 3 is made of waterproofing rope；The inner sheath 4 is made of waterproof linear low density polyethylene, and thickness is not less than
2mm；The semi-conductive layer 7 and semiconducting filler item 5 are all made using low density polyethylene (LDPE) with conductive black；The oversheath 8
For cross-linking type semiconductive set, thickness is greater than 3mm.Rationally, insulating layer is using the poly- second of crosslinking for the setting of the utility model overall structure
Alkene or polyethylene are made, and have excellent electrical insulation properties, physical mechanical property and waterproofness；It is filled using waterproofing rope, it will
While cable fills rounding, the intrusion of moisture in external environment is prevented；Inner sheath is using excellent linear low close of waterproof performance
Polyethylene is spent, thickness is not less than 2mm；Semi-conductive layer and semiconducting filler item use the mixing of low density polyethylene (LDPE) and conductive black
Object, electric conductivity are designed as slightly above oversheath, to guarantee the thunder and lightning or other fault currents smooth wink by neutral core
Between be introduced among the earth by semi-conductive layer and oversheath, protection cable operation and external environment safety；Oversheath uses
The semiconductive material of cross-linking type adds conductive black and adopts after the mixing such as sensitizer squeeze out using ethylene-vinyl acetate as base-material
It is crosslinked with irradiation technique, oversheath, which squeezes out, uses squash type, fills up the gap outside all neutral cores, and neutral core is complete
Package entirely protects neutral core moment when being powered to be linked into electric current greatly, and oversheath has semiconduction, excellent physics
Mechanical performance and waterproofness, the radial resistivity of oversheath reach 40 Ω .m, and tensile strength reaches 10N/mm2。
The utility model provides a kind of thinking and method, and there are many method and the approach for implementing the technical solution, with
It is only preferred embodiments of the present invention described in upper, it is noted that for those skilled in the art,
Without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications should also regard
For the protection scope of the utility model, all undefined components in this embodiment can be implemented in the prior art.
Claims (7)
1. a kind of lightning protection direct-buried cable, it is characterised in that：It includes conductor（1）, in the conductor（1）Outside, which extrudes, is equipped with insulation
Layer（2）, they form conductive unit, and the conductive unit is at least arranged two, are equipped with and fill out in the conductive unit outer gap
It fills（3）, they form cable core, extrude outside cable core equipped with inner sheath（4）, in the inner sheath（4）During space outside is equipped with
Property core and semiconducting filler item（5）, the neutrality core includes neutral cable core conductor（6）, in the neutral cable core conductor（6）
Outside is extruded equipped with semi-conductive layer（7）, in the neutral core and semiconducting filler item（5）Outside is extruded equipped with oversheath（8）.
2. lightning protection direct-buried cable according to claim 1, it is characterised in that：The conductor（1）With neutral cable core conductor（6）
All it is made of tin plating copper stranded conductor.
3. lightning protection direct-buried cable according to claim 1, it is characterised in that：The insulating layer（2）Using crosslinked polyethylene
Or polyethylene is made.
4. lightning protection direct-buried cable according to claim 1, it is characterised in that：The filling（3）It is made of waterproofing rope.
5. lightning protection direct-buried cable according to claim 1, it is characterised in that：The inner sheath（4）It is linearly low using waterproof
Density polyethylene is made, and thickness is not less than 2mm.
6. lightning protection direct-buried cable according to claim 1, it is characterised in that：The semi-conductive layer（7）And semiconducting filler
Item（5）All it is made using low density polyethylene (LDPE) with conductive black.
7. lightning protection direct-buried cable according to claim 1, it is characterised in that：The oversheath（8）For cross-linking type semiconductive
Set, thickness are greater than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683558.8U CN208157098U (en) | 2018-05-09 | 2018-05-09 | A kind of lightning protection direct-buried cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683558.8U CN208157098U (en) | 2018-05-09 | 2018-05-09 | A kind of lightning protection direct-buried cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208157098U true CN208157098U (en) | 2018-11-27 |
Family
ID=64389724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820683558.8U Active CN208157098U (en) | 2018-05-09 | 2018-05-09 | A kind of lightning protection direct-buried cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208157098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473659A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of lightning protection direct-buried cable |
| CN111489857A (en) * | 2020-04-20 | 2020-08-04 | 楼益强 | Safe composite cable |
-
2018
- 2018-05-09 CN CN201820683558.8U patent/CN208157098U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473659A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of lightning protection direct-buried cable |
| CN111489857A (en) * | 2020-04-20 | 2020-08-04 | 楼益强 | Safe composite cable |
| CN111489857B (en) * | 2020-04-20 | 2021-11-09 | 义乌市旻具五金工具有限公司 | Safe composite cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lightning protection directly buried cable Effective date of registration: 20221209 Granted publication date: 20181127 Pledgee: Jiangsu Yixing rural commercial bank Limited by Share Ltd. Branch Park Branch Pledgor: JIANGSU BAOAN CABLE Co.,Ltd. Registration number: Y2022980026157 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214205 Longchi Road, huankeyuan, Yixing City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Bao'an Cable Co.,Ltd. Address before: 214205 Longchi Road, huankeyuan, Yixing City, Wuxi City, Jiangsu Province Patentee before: JIANGSU BAOAN CABLE Co.,Ltd. |