CN208111119U - A kind of Radiation Crosslinked Polyethylene power cable - Google Patents
A kind of Radiation Crosslinked Polyethylene power cable Download PDFInfo
- Publication number
- CN208111119U CN208111119U CN201820572740.6U CN201820572740U CN208111119U CN 208111119 U CN208111119 U CN 208111119U CN 201820572740 U CN201820572740 U CN 201820572740U CN 208111119 U CN208111119 U CN 208111119U
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- China
- Prior art keywords
- crosslinked polyethylene
- radiation crosslinked
- layer
- radiation
- power cable
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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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Abstract
The utility model discloses a kind of Radiation Crosslinked Polyethylene power cables, include cable conductor, and the cable conductor is made of a supporting-core and single body more than one, outside supporting-core, it is characterised in that：The outer surface of each single body is arranged in gear-like and engages two-by-two, the single is enclosed with inner sheath in vitro, the inner sheath is externally provided with Radiation Crosslinked Polyethylene insulating layer, mineral insulation layer is surrounded with outside the Radiation Crosslinked Polyethylene insulating layer, the outer extrusion forming of the mineral insulation layer has minerals to fill fireprotection layer, and the outer extrusion forming of minerals filling fireprotection layer has Radiation Crosslinked Polyethylene sheath；The Radiation Crosslinked Polyethylene power cable can achieve fire prevention resistance to compression and durable purpose.
Description
Technical field
The utility model is specifically related to a kind of Radiation Crosslinked Polyethylene power cable.
Background technique
Wire and cable is to transmit electricity（Magnetic）Can, information and the wire product for realizing electromagnetic energy conversion.The electric wire electricity of broad sense
Cable is also referred to simply as cable, and the cable of narrow sense refers to insulated cable, it may be defined as：The aggregate consisted of following parts；One
Or the clad that a plurality of insulated core and each may have, total protective layer and outer jacket, cable can also have additional
The conductor not insulated.
Existing wire and cable production industry is directed to cable fire, is all using the polyvinyl chloride insulation with flame-resistant high-temperature-resistant
Material protects the conductor of cable, fire resistance difference and easy fragmentation, meanwhile, the most commonly used is polychlorostyrene in cable production
Ethylene and polyethylene, wherein polythene material have better electric property, commonly used by crosslinked cable insulating layer in room temperature
Lower hardness and strength are larger, especially increase than polyvinyl chloride insulation removing difficulty.General warm water crosslinking, it may appear that the degree of cross linking is not
Enough situations are more, the reason is that the original degree of cross linking of such product is relatively low, and production technology is discontinuous, cannot control automatically
System is affected by human factors very greatly, is easy to happen deficient crosslinking.
Summary of the invention
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of Radiation Crosslinked Polyethylene electric power
Cable, to achieve the purpose that the resistance to compression and durable of preventing fires.
The purpose of this utility model is achieved by the following technical programs.
A kind of Radiation Crosslinked Polyethylene power cable, includes cable conductor, and the cable conductor is by a supporting-core and one
A above, outside supporting-core single body composition, the outer surface of each single body are arranged in gear-like and engage two-by-two,
The single is enclosed with inner sheath in vitro, and the inner sheath is externally provided with Radiation Crosslinked Polyethylene insulating layer, and the cross-linking radiation is poly-
Mineral insulation layer is surrounded with outside ethylene insulating layer, the outer extrusion forming of the mineral insulation layer has minerals to fill fireprotection layer,
The outer extrusion forming of minerals filling fireprotection layer has Radiation Crosslinked Polyethylene sheath.
Preferably, being equipped with an accommodating cavity, the receiving between the inner sheath and Radiation Crosslinked Polyethylene insulating layer
It is equipped in cavity with jagged spongy layer.
Preferably, the mineral insulation layer by mica tape and high-fire-resistance ceramic fire resisting composite band interaction winding and
At.
Preferably, the minerals filling fireprotection layer is mixed by sodium metasilicate and magnesium hydroxide.
Preferably, the Radiation Crosslinked Polyethylene insulating layer and Radiation Crosslinked Polyethylene sheath are all by the poly- second of cross-linking radiation
Alkene composition.
The utility model has the beneficial effects that：The heatproof of cable is improved using Radiation Crosslinked Polyethylene insulating layer, is insulated
Layer stability, promotes the electric property of cable, and the heatproof, wear-resisting of cable is further strengthened using Radiation Crosslinked Polyethylene restrictive coating
And flame retardant property, more important is the electric properties for playing resistance effect and cable, cooperate by sodium metasilicate and magnesium hydroxide group
At minerals fill fireprotection layer, hardened in cable fire, prevent the combustion pressure of flame from directly influencing insulating layer, simultaneously
Cooperate the design of supporting-core and single body, forms resistance to compression support construction, and it is compound by mica tape and high-fire-resistance ceramic fire resisting
Mineral insulation layer with composition, fire resistance is high, in the case where no combustion pressure, can persistently use in flame.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Radiation Crosslinked Polyethylene power cable of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
Embodiment, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of Radiation Crosslinked Polyethylene power cable, includes cable conductor 1, the cable conductor 1 by
One supporting-core 11 and single body 12 more than one, outside supporting-core 11 form, and the outer surface of each single body 12 is in tooth
Colyliform is arranged and engages two-by-two, and the single body 12 is wrapped with inner sheath 2, and the inner sheath 2 is externally provided with the poly- second of cross-linking radiation
Alkene insulating layer 3, is surrounded with mineral insulation layer 4 outside the Radiation Crosslinked Polyethylene insulating layer 3, outside the mineral insulation layer 4
Extrusion forming has minerals to fill fireprotection layer 5, and the minerals filling outer extrusion forming of fireprotection layer 5 has Radiation Crosslinked Polyethylene shield
Set 6 is equipped with an accommodating cavity 7, is equipped in the accommodating cavity 7 between the inner sheath 2 and Radiation Crosslinked Polyethylene insulating layer 3
With jagged spongy layer 8, the mineral insulation layer 4 is by mica tape and the interaction winding of high-fire-resistance ceramic fire resisting composite band
It forms, the minerals filling fireprotection layer 5 is mixed by sodium metasilicate and magnesium hydroxide, the Radiation Crosslinked Polyethylene insulating layer
3 and Radiation Crosslinked Polyethylene sheath 6 be all made of Radiation Crosslinked Polyethylene.
Principle explanation：
The aging life-span of cable insulation material depends primarily on its thermal lifetime, it is under heat effect in insulating materials
What the speed of the chemical reactions such as the hot oxygen oxidation, thermal cracking, thermo-oxidative pyrolysis, the polycondensation that are occurred was determined, therefore insulating materials
Thermal lifetime directly affect the service life of cable, derived according to Chemical Kinetics and artificial thermal aging test surveyed
It obtains aging life of cables caused by heat 20-30 years, and Radiation Crosslinked Polyethylene power cable derives under operating temperature ratings and work heat is old
Changing test to measure aging life of cables caused by heat is more than 60 years；And when there is flame combustion, the mine that is made of sodium metasilicate and magnesium hydroxide
Substance fills fireprotection layer 5, can harden in cable fire, prevent the combustion pressure of flame from directly influencing insulating layer, supporting-core
11 can further improve compressive resistance with the support construction of single body 12, and be answered by mica tape and high-fire-resistance ceramic fire resisting
The mineral insulation layer 4 of crossed belt composition is only influenced by high temperature in the case where no flame pressure, mica tape and high-fire-resistance pottery
For the fusing point of porcelain fire resisting composite band at 800 DEG C or more, common flame temperature only has 400 DEG C or so, is not having flame pressure shadow
In the case where ringing mineral insulation layer 4, cable can persistently use in flame.
The utility model has the beneficial effects that：The heatproof of cable is improved using Radiation Crosslinked Polyethylene insulating layer, is insulated
Layer stability, promotes the electric property of cable, and the heatproof, wear-resisting of cable is further strengthened using Radiation Crosslinked Polyethylene restrictive coating
And flame retardant property, more important is the electric properties for playing resistance effect and cable, cooperate by sodium metasilicate and magnesium hydroxide group
At minerals fill fireprotection layer, hardened in cable fire, prevent the combustion pressure of flame from directly influencing insulating layer, simultaneously
Cooperate the design of supporting-core and single body, forms resistance to compression support construction, and it is compound by mica tape and high-fire-resistance ceramic fire resisting
Mineral insulation layer with composition, fire resistance is high, in the case where no combustion pressure, can persistently use in flame.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (5)
1. a kind of Radiation Crosslinked Polyethylene power cable, includes cable conductor, the cable conductor is by a supporting-core and one
Above, outside supporting-core the single body composition, it is characterised in that：The outer surface of each single body in gear-like be arranged and
It engages two-by-two, the single is enclosed with inner sheath in vitro, and the inner sheath is externally provided with Radiation Crosslinked Polyethylene insulating layer, the spoke
According to mineral insulation layer is surrounded with outside crosslinked polyetylene insulated layer, the outer extrusion forming of the mineral insulation layer has minerals filling
Fireprotection layer, the outer extrusion forming of minerals filling fireprotection layer have Radiation Crosslinked Polyethylene sheath.
2. Radiation Crosslinked Polyethylene power cable as described in claim 1, it is characterised in that：The inner sheath and cross-linking radiation
It is equipped with an accommodating cavity between polyethylene layer, is equipped in the accommodating cavity with jagged spongy layer.
3. Radiation Crosslinked Polyethylene power cable as described in claim 1, it is characterised in that：The mineral insulation layer is by cloud
Master tape and the interaction of high-fire-resistance ceramic fire resisting composite band are entwined.
4. Radiation Crosslinked Polyethylene power cable as described in claim 1, it is characterised in that：The minerals fill fireprotection layer
It is mixed by sodium metasilicate and magnesium hydroxide.
5. Radiation Crosslinked Polyethylene power cable as described in claim 1, it is characterised in that：The Radiation Crosslinked Polyethylene is exhausted
Edge layer and Radiation Crosslinked Polyethylene sheath are all made of Radiation Crosslinked Polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820572740.6U CN208111119U (en) | 2018-04-21 | 2018-04-21 | A kind of Radiation Crosslinked Polyethylene power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820572740.6U CN208111119U (en) | 2018-04-21 | 2018-04-21 | A kind of Radiation Crosslinked Polyethylene power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208111119U true CN208111119U (en) | 2018-11-16 |
Family
ID=64119303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820572740.6U Expired - Fee Related CN208111119U (en) | 2018-04-21 | 2018-04-21 | A kind of Radiation Crosslinked Polyethylene power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208111119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574616A (en) * | 2019-01-15 | 2019-04-05 | 河北焱腾电线电缆有限公司 | A kind of inorganic mineral fire proofing material |
| CN110232990A (en) * | 2019-05-20 | 2019-09-13 | 浙江启超电缆股份有限公司 | Extrusion pressing type medium voltage DC cable |
-
2018
- 2018-04-21 CN CN201820572740.6U patent/CN208111119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574616A (en) * | 2019-01-15 | 2019-04-05 | 河北焱腾电线电缆有限公司 | A kind of inorganic mineral fire proofing material |
| CN110232990A (en) * | 2019-05-20 | 2019-09-13 | 浙江启超电缆股份有限公司 | Extrusion pressing type medium voltage DC cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20210421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |