CN103871670A - Double-insulated and double-shielded metal armored cable - Google Patents
Double-insulated and double-shielded metal armored cable Download PDFInfo
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- CN103871670A CN103871670A CN201410121474.1A CN201410121474A CN103871670A CN 103871670 A CN103871670 A CN 103871670A CN 201410121474 A CN201410121474 A CN 201410121474A CN 103871670 A CN103871670 A CN 103871670A
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- metal armouring
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Abstract
The invention discloses a double-insulated and double-shielded metal armored cable. The double-insulated and double-shielded metal armored cable comprises a cable core which is formed by the fact that three insulation wire cores are twisted, packing layers are arranged in the gap and the outside of the cable core, and a wrapping tape, an inner protecting layer, a metal armored layer and an outer protection layer are sequentially wrapped outside the cable core. Each insulated wire core is composed of a copper conductor, a conductor shielding layer, a first insulation layer, an insulation shielding layer and a second insulation layer, wherein the conductor shielding layer, the first insulation layer, the insulation shielding layer and the second insulation layer are sequentially wrapped outside the copper conductor. The double-insulated and double-shielded metal armored cable has the advantages of being good in fire resistance, high in mechanical performance, good in insulation performance, resistant to ageing, simple in structure, and low in production cost.
Description
Technical field
The present invention relates to a kind of power cable, specifically a kind of two insulation double shield metal armouring cable.
Background technology
Power cable with cross-linked polyethylene insulation because its good electric property, transmission capacity are large, can high drop or the advantage such as vertical run, installation and maintenance aspect, it applies very extensive in high pressure and extra-high-tension cable field.In the practical application of power cable with cross-linked polyethylene insulation, because the reason such as aging is easy to cause the deteriorated of crosslinked polyetylene insulated layer and destroys.In prior art, by series of improving measures, still still cannot eliminate the formation and development of electric branch aging phenomenon in crosslinked polyetylene insulated layer completely; Carrying out in high pressure and superhigh pressure transmitting procedure, due to the decline of insulation property, exist the potential safety hazard of cable breakdown.Therefore, how the structure of power cable with cross-linked polyethylene insulation in prior art is improved, to improve the aging destruction that power cable is caused of crosslinked polyetylene insulated layer, improve job stability and the reliability of power cable with cross-linked polyethylene insulation, be those skilled in the art's technical issues that need to address the useful life of improving cable.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of good flame resistance, mechanical performance are strong, good insulating, the two insulation double shield metal armouring cables that anti-aging, simple in structure, production cost is low.
The two insulation of one of the present invention double shield metal armouring cable, comprises by three stranded cable cores that form of insulated wire cores, is provided with packed layer in gap and the outside of cable core, is coated successively band, sheath, metal armouring layer and outer jacket outward at cable core; Described insulated wire cores by copper conductor and the conductor shield, the first insulating barrier, insulation screen, the second insulating barrier that are extruded in successively outside copper conductor form.
As improvement, described packed layer forms by rope form inorganic material is wrapped.
Further improve, the first described insulating barrier adopts cross-linking polyethylene materials, and its thickness is 6.5mm.
Further improve, the second described insulating barrier adopts cross-linking polyethylene materials, and its thickness is 8mm.
Further improve, described oversheath adopts polyolefine material again.
Beneficial effect of the present invention is:
Packed layer in the present invention is made by rope form inorganic material is wrapped, and this structure can play good flame retardant effect in fire, makes the insulating barrier of cable in fire, be softened and not melt.The present invention adopts two insulation double shield structures, can improve high electric field concentration problem inner and surface, thereby suppress formation and the development of crosslinked polyetylene insulated middle electric branch, improve aging phenomenon, job stability and the reliability of cross-linked polyethylene insulated cable are improved, shield structure has also improved the shielding of cable, and belting layer, inner sheath have also improved the water preventing ability of cable, thereby has improved the useful life of cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the two insulation of one of the present invention double shield metal armouring cable, comprise by three stranded cable cores that form of insulated wire cores, be provided with packed layer 6 in gap and the outside of cable core, be coated successively band 7, sheath 8, metal armouring layer 9 and outer jacket 10 outward at cable core; Described insulated wire cores is made up of copper conductor 1 and the conductor shield 2, the first insulating barrier 3, insulation screen 4, the second insulating barrier 5 that are extruded in successively outside copper conductor 1.
Packed layer 4 described above forms by rope form inorganic material is wrapped; The first described insulating barrier 3 adopts cross-linking polyethylene materials, and its thickness is 6.5mm; The second described insulating barrier adopts cross-linking polyethylene materials, and its thickness is 8mm.Described oversheath 10 adopts polyolefine material.
The invention provides a kind of two insulation double shield metal armouring construction of cable form and implementation method; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improve and also should be considered as protection scope of the present invention.
Claims (5)
1. a two insulation double shield metal armouring cable, it is characterized in that: comprise by three stranded cable cores that form of insulated wire cores, gap and outside at cable core are provided with packed layer (6), are coated successively band (7), sheath (8), metal armouring layer (9) and outer jacket (10) outward at cable core; Described insulated wire cores is by copper conductor (1) and be extruded in successively the outer conductor shield (2) of copper conductor (1), the first insulating barrier (3), insulation screen (4), the second insulating barrier (5) formation.
2. two insulation double shield metal armouring cable according to claim 1, is characterized in that: described packed layer (4) forms by rope form inorganic material is wrapped.
3. two insulation double shield metal armouring cable according to claim 1, is characterized in that: described insulating barrier (3) adopts cross-linking polyethylene materials, and its thickness is 6.5mm.
4. two insulation double shield metal armouring cable according to claim 1, is characterized in that: described copper strip shielding layer (5) is that copper strips lapping layer or copper wire are dredged around adding copper strips binding structure for binding, and its thickness is 0.8mm.
5. two insulation double shield metal armouring cable according to claim 1, is characterized in that: described oversheath (10) adopts polyolefine material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121474.1A CN103871670A (en) | 2014-03-28 | 2014-03-28 | Double-insulated and double-shielded metal armored cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121474.1A CN103871670A (en) | 2014-03-28 | 2014-03-28 | Double-insulated and double-shielded metal armored cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103871670A true CN103871670A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121474.1A Pending CN103871670A (en) | 2014-03-28 | 2014-03-28 | Double-insulated and double-shielded metal armored cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103871670A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109733A (en) * | 2017-12-18 | 2018-06-01 | 苏州人为峰软件科技有限公司 | A kind of mesohigh fuel-resistant rubber semi-conductive shielding cable |
| CN111883297A (en) * | 2020-08-06 | 2020-11-03 | 安徽环宇电缆集团有限公司 | Cable with electromagnetic wave shielding function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002100245A (en) * | 2000-09-26 | 2002-04-05 | Okinawa Electric Power Co Ltd | Doubly armored submarine cable |
| US20060137894A1 (en) * | 2004-12-27 | 2006-06-29 | Daniel Cusson | Electrical power cable having expanded polymeric layers |
| CN201611593U (en) * | 2010-03-17 | 2010-10-20 | 安徽华星电缆集团有限公司 | Mining power cable |
| CN102074299A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding electric cable special for nuclear power |
| CN202711831U (en) * | 2012-07-17 | 2013-01-30 | 四川明星电缆股份有限公司 | Three-core photoelectric composite submarine cable |
| CN103295692A (en) * | 2012-02-29 | 2013-09-11 | 江苏亚飞电线电缆有限公司 | Novel three-core steel-band-armored cable |
-
2014
- 2014-03-28 CN CN201410121474.1A patent/CN103871670A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002100245A (en) * | 2000-09-26 | 2002-04-05 | Okinawa Electric Power Co Ltd | Doubly armored submarine cable |
| US20060137894A1 (en) * | 2004-12-27 | 2006-06-29 | Daniel Cusson | Electrical power cable having expanded polymeric layers |
| CN201611593U (en) * | 2010-03-17 | 2010-10-20 | 安徽华星电缆集团有限公司 | Mining power cable |
| CN102074299A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding electric cable special for nuclear power |
| CN103295692A (en) * | 2012-02-29 | 2013-09-11 | 江苏亚飞电线电缆有限公司 | Novel three-core steel-band-armored cable |
| CN202711831U (en) * | 2012-07-17 | 2013-01-30 | 四川明星电缆股份有限公司 | Three-core photoelectric composite submarine cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109733A (en) * | 2017-12-18 | 2018-06-01 | 苏州人为峰软件科技有限公司 | A kind of mesohigh fuel-resistant rubber semi-conductive shielding cable |
| CN111883297A (en) * | 2020-08-06 | 2020-11-03 | 安徽环宇电缆集团有限公司 | Cable with electromagnetic wave shielding function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |