CN102184760A - Single-core fireproof cable at voltage of less than or equal to 6 to 10kV - Google Patents
Single-core fireproof cable at voltage of less than or equal to 6 to 10kV Download PDFInfo
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- CN102184760A CN102184760A CN 201110063756 CN201110063756A CN102184760A CN 102184760 A CN102184760 A CN 102184760A CN 201110063756 CN201110063756 CN 201110063756 CN 201110063756 A CN201110063756 A CN 201110063756A CN 102184760 A CN102184760 A CN 102184760A
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Abstract
The invention discloses a single-core fireproof cable at the voltage of less than or equal to 6 to 10kV. The cable is characterized by comprising a conductor, a semi-conducting layer, a mica layer, a coupling agent layer, an outer semi-conducting layer, a mica layer and a copper pipe sheath sequentially from inside to outside. In the single-core fireproof cable, mica and a silane coupling agent are improved, and the copper pipe sheath is arranged on the outermost layer additionally, so that the single-core fireproof cable at the voltage of less than or equal to 6 to 10kV has fire resistance, is non-toxic, tasteless and smokeless, and has greatly improved safety; and the cable can be combusted at the temperature of between 750 and 950 DEG C for 120 minutes without the fusing of fuses.
Description
Technical field
The present invention relates to a kind of single core fireproof cable, belong to the cable preparation technical field, particularly a kind of 6-10KV reaches with the core fireproof cable that places an order.
Background technology
In some abominable and difficult environment that arrive, the utilization rate of single-core cable is bigger, and the flexibility of single-core cable is good, and volume is little, is fit to down-hole and mining illumination and the exploitation work of industry.Wherein 6-10KV and following cable be difficult for arriving and environment that electricity needs is little under, be most widely used.
In the prior art, in order to realize flameproof effect, single-core cable need add fire proofing materials such as braid, mica tape usually; Wherein braid normally is wrapped in the outer insulating barrier outside of conductor of cable, generally selects fibrage layer or copper wire braid, and this braided material is time-consuming, and selectivity is low, reduces productivity ratio, but also has improved cost; And in order to improve flameproof effect, common improvement is the method for coating that changes mica layer, selects for use spiral to coat or the uneven coating of part, but select mica material to be identical mica tape, then when improving flameproof effect,, also improved cost virtually to the experimentation of mica method for coating.If the material of mica own is improved, then can form a mechanical method for coating, uninterruptedly produce, then enhance productivity, reduce cost.
In addition, in order to improve flameproof effect, sometimes also need be at the many layer insulatings of the inner interpolation of cable, wherein part may be poisonous, scent of material, if and use mica tape, wherein the chemical composition of the new insulating barrier of the chemical composition of adhesive and this interpolation exists simultaneously, may reduce flameproof effect, and fail safe also reduces.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of 6-10KV reaches with the core fireproof cable that places an order, mica layer and even crosslinking agent are improved, and at most external interpolation copper pipe sheath, breaking through 6-10KV and following cable can not the fireproof bottleneck, higher than common cable fire resistance, reach 120-125min.
The present invention realizes by following technical scheme:
A kind of 6-10KV reaches with the core fireproof cable that places an order, and described cable is followed successively by conductor, semi-conductive layer, mica layer, coupling agent layer, outer semiconducting layer, mica layer and copper pipe sheath from inside to outside.
Described mica layer is a three-decker, is specially and adheres to equal benzene type polyimide film and alkali-free glass cloth respectively before and after mica paper.
Described coupling agent layer is silane coupler or titanate coupling agent, perhaps both mixtures.
Described silane coupler is 3-metering system acyloxy propyl trimethoxy silicane, gamma-aminopropyl-triethoxy-silane, tetraethoxysilane, trimethoxy silane, anilinomethyl trimethoxy silane, methyl silicate, γ-aminopropyl methyl dimethoxysilane or gamma-methyl allyl acyloxypropyl trimethoxysilane; Described titanate coupling agent is the two titanate esters of tetrabutyl titanate, isopropyl two oleic acid acyloxy titanate esters, isopropoxy three titanate esters or acetic acid esters.
Beneficial effect of the present invention is:
1, breaking through 6-10KV and following cable can not the fireproof bottleneck;
2, adding insulated copper is that mode with copper pipe is added on outermost layer, does not fire, fire resistance;
3, fire resistance period is 120-130min, has more 30-40min than common cable;
4, nontoxic, tasteless, smokeless, safety;
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
One, the preparation of mica layer and even cross-linked layer
Mica layer is selected for use and adhere to equal benzene type polyimide film and alkali-free glass cloth respectively before and after mica paper.
The idol crosslinking agent is selected 3-metering system acyloxy propyl trimethoxy silicane for use.
Two, the preparation of 6KV cable
Cable is followed successively by conductor, semi-conductive layer, mica layer, 3-metering system acyloxy propyl trimethoxy silicane layer, outer semiconducting layer, mica layer and copper pipe sheath from inside to outside.
Three, test
Above-mentioned cable is carried out fire-resistant test, and its result is at the 750-950 ℃ of 120min that burns down, adds and cuts an operating voltage, and fuse does not fuse, and indicator light does not extinguish.
Embodiment 2
One, the preparation of mica layer and even cross-linked layer
Mica layer is selected for use and adhere to equal benzene type polyimide film and alkali-free glass cloth respectively before and after mica paper.
The idol crosslinking agent is selected isopropyl two oleic acid acyloxy titanate esters for use.
Two, the preparation of 6KV cable
Cable is followed successively by conductor, semi-conductive layer, mica layer, isopropyl two oleic acid acyloxy titanate esters layers, outer semiconducting layer, mica layer and copper pipe sheath from inside to outside.
Three, test
Above-mentioned cable is carried out fire-resistant test, and its result is at the 750-950 ℃ of 120min that burns down, adds and cuts an operating voltage, and fuse does not fuse, and indicator light does not extinguish.
Embodiment 3
One, the preparation of mica layer and even cross-linked layer
Mica layer is selected for use and adhere to equal benzene type polyimide film and alkali-free glass cloth respectively before and after mica paper.
The idol crosslinking agent is selected the mixture of gamma-methyl allyl acyloxypropyl trimethoxysilane and tetrabutyl titanate for use.
Two, the preparation of 6KV cable
Cable is followed successively by mixture layer, outer semiconducting layer, mica layer and the copper pipe sheath of conductor, semi-conductive layer, mica layer, gamma-methyl allyl acyloxypropyl trimethoxysilane and tetrabutyl titanate from inside to outside.
Three, test
Above-mentioned cable is carried out fire-resistant test, and its result is at the 750-950 ℃ of 130min that burns down, adds and cuts an operating voltage, and fuse does not fuse, and indicator light does not extinguish.
Claims (4)
1. a 6-10KV reaches with the core fireproof cable that places an order, and it is characterized in that described cable is followed successively by conductor, semi-conductive layer, mica layer, coupling agent layer, outer semiconducting layer, mica layer and copper pipe sheath from inside to outside.
2. 6-10KV as claimed in claim 1 reaches with the core fireproof cable that places an order, and it is characterized in that described mica layer is a three-decker, is specially and adheres to equal benzene type polyimide film and alkali-free glass cloth respectively before and after mica paper.
3. 6-10KV as claimed in claim 1 reaches with the core fireproof cable that places an order, and it is characterized in that described coupling agent layer is silane coupler or titanate coupling agent, perhaps both mixtures.
4. 6-10KV as claimed in claim 3 reaches with the core fireproof cable that places an order, and it is characterized in that described silane coupler is 3-metering system acyloxy propyl trimethoxy silicane, gamma-aminopropyl-triethoxy-silane, tetraethoxysilane, trimethoxy silane, anilinomethyl trimethoxy silane, methyl silicate, γ-aminopropyl methyl dimethoxysilane or gamma-methyl allyl acyloxypropyl trimethoxysilane; Described titanate coupling agent is the two titanate esters of tetrabutyl titanate, isopropyl two oleic acid acyloxy titanate esters, isopropoxy three titanate esters or acetic acid esters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110063756 CN102184760A (en) | 2011-03-17 | 2011-03-17 | Single-core fireproof cable at voltage of less than or equal to 6 to 10kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110063756 CN102184760A (en) | 2011-03-17 | 2011-03-17 | Single-core fireproof cable at voltage of less than or equal to 6 to 10kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102184760A true CN102184760A (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110063756 Pending CN102184760A (en) | 2011-03-17 | 2011-03-17 | Single-core fireproof cable at voltage of less than or equal to 6 to 10kV |
Country Status (1)
| Country | Link |
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| CN (1) | CN102184760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733116A (en) * | 2015-03-26 | 2015-06-24 | 无锡市浦漕电缆有限公司 | Polyvinyl chloride insulation cable with inflaming retarding and heat resistant performance and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669718A (en) * | 1979-11-12 | 1981-06-11 | Hitachi Cable | Fillerrfilled crosslinking polyethylene insulating cable |
| JP2000251543A (en) * | 1999-03-01 | 2000-09-14 | Yazaki Corp | Fireproof cable and its manufacture |
| JP2004134267A (en) * | 2002-10-11 | 2004-04-30 | Yazaki Corp | Fireproof cable |
-
2011
- 2011-03-17 CN CN 201110063756 patent/CN102184760A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669718A (en) * | 1979-11-12 | 1981-06-11 | Hitachi Cable | Fillerrfilled crosslinking polyethylene insulating cable |
| JP2000251543A (en) * | 1999-03-01 | 2000-09-14 | Yazaki Corp | Fireproof cable and its manufacture |
| JP2004134267A (en) * | 2002-10-11 | 2004-04-30 | Yazaki Corp | Fireproof cable |
Non-Patent Citations (2)
| Title |
|---|
| 《华东理工大学学报》 19970831 陆宪良等 有机硅胶粘剂在耐火云母带中的应用 472-476 1-4 第23卷, 第4期 2 * |
| 《塑料工业》 19850831 薛良等 钛酸酯为偶联剂的聚丙烯-云母复合材料研究 17-21 4 第1985年卷, 第4期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733116A (en) * | 2015-03-26 | 2015-06-24 | 无锡市浦漕电缆有限公司 | Polyvinyl chloride insulation cable with inflaming retarding and heat resistant performance and manufacturing method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |