CN101707072A - Flexible silane crosslinking polyolefin elastic insulated cable - Google Patents
Flexible silane crosslinking polyolefin elastic insulated cable Download PDFInfo
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- CN101707072A CN101707072A CN200910253367A CN200910253367A CN101707072A CN 101707072 A CN101707072 A CN 101707072A CN 200910253367 A CN200910253367 A CN 200910253367A CN 200910253367 A CN200910253367 A CN 200910253367A CN 101707072 A CN101707072 A CN 101707072A
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- polyolefin elastic
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Abstract
The invention relates to a flexible silane crosslinking polyolefin elastic insulated cable, which at least comprises a conductor, an insulated layer and an outer protective sleeve, and is characterized in that in the insulated layer, a silane crosslinking polyolefin elastic material substitutes a silane crosslinking polyethylene material. The cable may have 1, 2, 3, 4 or 5 cores. When the cable has 2 or more cores, a filler or a belt are arranged between the insulated layer and the outer protective sleeve, wherein the filler is filled in the insulated layer; the belt is position on the outer layer of the filler; and the outer protective layer is positioned outside the belt. The cable provided by the invention has excellent bending resistance and other performance and has the characteristic of wide and safe use. The pressure tests of the cable show that the cable can withstand a 3.5kV alternating current for 5 minutes continuously without being broken down. The bending resistance of the cable is no less than 18,000 times. The bending radius of the cable is no less than 4 times of the outside diameter of the cable under the condition of fixed installation and no less than 6 times of the outside diameter of the cable under the condition of mobile installation.
Description
Technical field
The present invention relates to a kind of flexible silane crosslinking polyolefin elastic insulated cable.
Background technology
Traditional silanes cross-linked polyethylene insulated cable is mainly used in the environment that fixedly lays, can not be applied to mobile occasion, mainly be because the silanes cross-linked polyethylene insulated cable body is harder, be not suitable for frequent moving, traditional moving all used rubber class flexible cable with cable, and power cable often uses ethylene propylene rubber insulated cable.Use ethylene propylene rubber insulatedly, make cable factory for many plastics classes and can not produce, therefore be subjected to very big placing restrictions on owing to there is vulcanization of rubber equipment.
How on the basis of existing plastic extruder, develop a kind of new silane crosslinking polyolefin elastic body insulated cable, can be applied to mobile occasion, replace traditional ethylene propylene rubber insulated power cable, thereby simplify production technology greatly and save manufacturing cost, this is a kind of advanced person's a material application achievements.
Summary of the invention
The object of the present invention is to provide a kind of flexible silane crosslinking polyolefin elastic insulated body cable.
Because gentle elastic body insulated flexible cable use occasion provided by the invention need frequently be reversed, therefore must have good antitorque commentaries on classics performance and bending property.So the present invention at first sets about from material development, select silane crosslinking polyolefin elastic body insulating material for use, by this material is tested discovery, this material has following premium properties:
1, have good low-temperature resistance and resistance to wear, and fatigue durability, weather-resistant performance, anti-microbial performance, oil product, chemicals are had fabulous corrosion resistance.Common cable does not have resistance to wear and corrosion resistance.
2, bending resistance excellence: bending resistance is not less than 18000 times.
3, suitable environment temperature-15 ℃～+ 50 ℃.
4, the temperature of laying of cable is not less than-10 ℃, common cable lay temperature for being not less than 0 ℃;
5, Cable Bending Radius: fixed installation is not less than 4 times of the outside diameter of cable, and mobile installation is not less than 6 times of the outside diameter of cable.The bending radius of common cable is 20 times of the outside diameter of cable.
In order to guarantee with the flexible silane crosslinking polyolefin material is that the flexible cable of insulating barrier has above advantage, and the present invention improves cable from the following aspect:
1, conductor: conductor adopts the oxygen-free copper of high-quality, and the purity of copper reaches 99.99%.Conductor adopts zinc-plated or tin-coated copper conductor not according to the requirement of using, and conductor adopts and meets the requirement that IEC60228 stipulates the 5th kind or the 6th kind conductor regulation.Conductive surface should bright and clean, no greasy dirt, the burr of not damaged insulation, and the single line of projection or fracture.
2, insulating barrier: insulating barrier adopts flexible silane crosslinking polyolefin elastic body material, and the resistance to low temperature of insulation can reach-10 ℃, and thickness of insulating layer is selected for use and is fit to 1kV level and following voltage withstand class thickness, meets the regulation of GB/T12706.1-2008.
3, sheath: sheath adopts flexible flexible PVC protective cover material or elastomer sheathing material, and the resistance to low temperature of sheath reaches-15 ℃.Restrictive coating thickness is selected for use and is fit to 1kV level and following voltage withstand class thickness, should meet the regulation of GB/T12706.1-2008.
Flexible silane crosslinking polyolefin insulated cable provided by the invention comprises conductor, insulating barrier and oversheath at least; The cable core number can be 1 core, 2 cores, 3 cores, 4 cores or 5 cores. is 2 cores or then between conductor and the conductor packed layer should be arranged when surpassing 2 cores at the cable core number, in the packed layer outside band is arranged, the band outside is oversheath more then, also promptly increases packed layer and band between insulating barrier and oversheath.
Silane crosslinking polyolefin elastic insulated material provided by the invention substitutes traditional ethylene-propylene rubber first, not only make the price of product more cheap, technology is simple and overcome the use limitation that the conventional silanes cross-linked polyethylene insulated cable lays, guarantee that product has good bending resistance, product has the advantages that to be extensive use of with safety.
The characteristic of the polyolefin elastic insulated cable of crosslinked with silicane provided by the invention is:
1, cable voltage test: stand to exchange 3.5kV, continue 5 minutes, do not puncture.
2, bending resistance is not less than 18,000 times.
3, Cable Bending Radius: fixed installation is not less than 4 times of the outside diameter of cable, and mobile installation is not less than 6 times of the outside diameter of cable.
Description of drawings
Fig. 1 is the structural representation that different core provided by the invention is counted cable; Wherein, 1-a is 1 core, and 1-b is 2 cores, and 1-c is 3 cores, and 1-d is 4 cores, and 1-e is 5 cores.
Among the figure, 1 is flexible conductor, and 2 is insulating barrier, and 3 is inserts, and 4 is band, and 5 is oversheath.
Embodiment
Flexible silane crosslinking polyolefin insulated cable provided by the invention is wherein made the wire drawing-bundle strand-stranded-insulating barrier-stranding-sheath of the technology of described cable for routine as shown in Figure 1, wherein:
1, conductor:
Conductor adopts the 5th class or the 6th class conductor structure of GB/T3956 regulation, can zinc-plated or not zinc-plated two kind, and conductive surface is bright and clean, no burr, cut.
2, insulating barrier:
Insulating material adopts flexible silane crosslinking polyolefin elastic body material, and insulation thickness meets the requirement of GB/T12706.1-2008 regulation, guarantee insulated wire cores have good anti-ly reverse, high strength and electrical insulation properties.
3, stranding:
Band adopts the fire-retardant band of alkali-free glass, and overlapping wrapped, the rate of putting up is 20%.Wrapped should be tight, smooth, must not disconnect, lack layer, folding and crumple.
4,, oversheath:
Sheath adopts flexible flexible PVC protective cover material or elastomer sheathing material, and jacket thickness meets the requirement of GB/T12706.1-2008 regulation, makes cable have very strong mechanical performance, has environmental corrosion resisting performance and bending resistance preferably simultaneously.
Claims (9)
1. a flexible silane crosslinking polyolefin elastic insulated cable comprises conductor, insulating barrier and oversheath at least, it is characterized in that the polythene material of described insulating barrier by silane crosslinking polyolefin elastic material substitution crosslinked with silicane.
2. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 1, it is characterized in that described cable core number is 1 core, 2 cores, 3 cores, 4 cores or 5 cores.
3. by claim 1 or 2 described flexible silane crosslinking polyolefin elastic insulated cables, it is characterized in that when the cable core number be 2 cores or when surpassing 2 cores, inserts and band are arranged between insulating barrier and the oversheath, described inserts is between insulating barrier, band is positioned at the inserts skin, and the band outside is oversheath again.
4. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 1, it is characterized in that described conductor adopts the conductor of the 5th kind or the 6th kind regulation that meets the IEC60228 regulation.
5. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 3, it is characterized in that described conductor adopts the conductor of the 5th kind or the 6th kind regulation that meets the IEC60228 regulation.
6. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 1, it is characterized in that described thickness of insulating layer meets the suitable 1kV level of GB/T 12706.1-2008 regulation and the thickness of following voltage withstand class.
7. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 3, it is characterized in that described thickness of insulating layer meets the suitable 1kV level of GB/T 12706.1-2008 regulation and the thickness of following voltage withstand class.
8. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 1, it is characterized in that described external sheath layer thickness meets the suitable 1kV level of GB/T 12706.1-2008 regulation and the thickness of following voltage withstand class.
9. by the described flexible silane crosslinking polyolefin elastic insulated cable of claim 3, it is characterized in that described external sheath layer thickness meets the suitable 1kV level of GB/T 12706.1-2008 regulation and the thickness of following voltage withstand class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253367A CN101707072A (en) | 2009-12-02 | 2009-12-02 | Flexible silane crosslinking polyolefin elastic insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253367A CN101707072A (en) | 2009-12-02 | 2009-12-02 | Flexible silane crosslinking polyolefin elastic insulated cable |
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| Publication Number | Publication Date |
|---|---|
| CN101707072A true CN101707072A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910253367A Pending CN101707072A (en) | 2009-12-02 | 2009-12-02 | Flexible silane crosslinking polyolefin elastic insulated cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723130A (en) * | 2012-06-27 | 2012-10-10 | 苏州科宝光电科技有限公司 | Thin-wall double-layer insulated cable with high voltage resistance |
| CN104252905A (en) * | 2013-06-29 | 2014-12-31 | 沈阳岳阳电缆有限公司 | Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable |
| CN104916352A (en) * | 2014-03-11 | 2015-09-16 | 日立金属株式会社 | Cable and manufacturing method |
| CN105321618A (en) * | 2014-06-25 | 2016-02-10 | 江苏宝安电缆有限公司 | Cold resistant polyvinyl chloride sheath power cable |
| BE1026744B1 (en) * | 2018-11-13 | 2021-01-05 | Claas Saulgau Gmbh | Agricultural implement |
-
2009
- 2009-12-02 CN CN200910253367A patent/CN101707072A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723130A (en) * | 2012-06-27 | 2012-10-10 | 苏州科宝光电科技有限公司 | Thin-wall double-layer insulated cable with high voltage resistance |
| CN104252905A (en) * | 2013-06-29 | 2014-12-31 | 沈阳岳阳电缆有限公司 | Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable |
| CN104916352A (en) * | 2014-03-11 | 2015-09-16 | 日立金属株式会社 | Cable and manufacturing method |
| CN104916352B (en) * | 2014-03-11 | 2018-10-09 | 日立金属株式会社 | Cable and its manufacturing method |
| CN105321618A (en) * | 2014-06-25 | 2016-02-10 | 江苏宝安电缆有限公司 | Cold resistant polyvinyl chloride sheath power cable |
| BE1026744B1 (en) * | 2018-11-13 | 2021-01-05 | Claas Saulgau Gmbh | Agricultural implement |
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Open date: 20100512 |