CN101728015A - Coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable - Google Patents
Coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable Download PDFInfo
- Publication number
- CN101728015A CN101728015A CN200810230452A CN200810230452A CN101728015A CN 101728015 A CN101728015 A CN 101728015A CN 200810230452 A CN200810230452 A CN 200810230452A CN 200810230452 A CN200810230452 A CN 200810230452A CN 101728015 A CN101728015 A CN 101728015A
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- China
- Prior art keywords
- steel band
- power cable
- coal mine
- cable
- high temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003245 coal Substances 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000003063 flame retardant Substances 0.000 title claims abstract description 24
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 23
- 238000004132 cross linking Methods 0.000 title claims abstract description 22
- -1 polyethylene Polymers 0.000 title claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 5
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 8
- 240000005572 Syzygium cordatum Species 0.000 description 6
- 235000006650 Syzygium cordatum Nutrition 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
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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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- Insulated Conductors (AREA)
Abstract
The invention aims to provide a coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable which can be effectively suitable for a water environment in a coal mine, has high humidity and cannot be damaged during a gas explosion. The power cable is characterized in that: (1) the power cable is formed by twisting at least three single-core cables; (2) each single-core cable consists of a conductor, a fireproof material and a crosslinking polyethylene layer from inside to outside in turn; and (3) the outer part of a twisted cable consists of a waterproof packing layer, a waterproof belt, an inner cushion layer, a steel band and an outer jacket layer from inside to outside in turn. More than 200 times of experiments find that when a plurality of parts of the outer jacket are worn out, the steel band is damaged, and the power cable is soaked in 50 DEG C coal water for 30 days, the twisted cable is intact, then a gas explosion experiment is performed, but a flame-retardant crosslinking polyethylene insulating layer of each single-core cable is not completely damaged. The coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable has the best effect, and can meet the requirements on being effectively suitable for the water environment in the coal mine, having high humidity and not being damaged during the gas explosion.
Description
Technical field
Power cable of the present invention field specifically is exactly coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable.
Background technology
After finding crosslinked polyethylene (XLPE) insulation water tree aging in 1967, confirmed that at present it becomes XL, one of main phenomenon that the PE cable is aging.
Though the mechanism of water tree and how to cause that destruction still imperfectly understands at present, great number tested data show water tree and can cause local stress to increase, may become the cradle of electric branch.Under the high temperature, in the water tree significant oxidation may take place, cause water absorption to increase, conductivity increases, final thermal breakdown; Even at low temperatures, water tree is through the long period oxidation or be converted into electric branch, also can cause the destruction of insulation.Particularly when the cable long period of soaking is in water, if there is not good waterproof construction, more to be easy to generate the water tree of insulation aging for cable so, thereby the destruction of causing insulation will be shortened life-span of cable so greatly.
Environment in the coal mine, be a kind of special adverse circumstances, substantially be under water environment, and high humidity, if taking place, gas explosion damages cable, will be because of the cable bad expansion that causes damage, and present power cable is various, the material of the outer coated winding of conductor and the mode that these materials are arranged from the inside to surface successively are multifarious, but the power cable that effectively is fit to adverse circumstances in the coal mine does not also have.
Summary of the invention
The object of the present invention is to provide the water environment that effectively is fit in the coal mine, the coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable that gas explosion does not damage if take place in high humidity.The present invention is achieved in that coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable, it is characterized in that:
1. described power cable is by at least three stranded forming of single-core cable;
2. every single-core cable is made of conductor, refractory material, crosslinked polyethylene layer from the inside to surface successively
3. the twisted cable outside is made of the packed layer that blocks water, waterstop, inner cushion layer, steel band and external sheath layer from the inside to surface successively.
Described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that: described twisted cable is three stranded forming of single-core cable.
Described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that: described conductor is for pressing copper free wire.
Described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that: described refractory material is a mica tape.
Described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that: described external sheath layer is a high flame retardant polyvinyl chloride.
Described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that: the described packed layer that blocks water is a waterproofing rope.
The material of the outer coated winding of conductor and the mode that these materials are arranged from the inside to surface successively, reach thousands of kinds through permutation and combination, feasible more than 100 kind of scheme on the Choice Theory, find through 200 test of many times, the test effect of the most feasible several schemes is unsatisfactory in theory, the scheme of having only claim 6, worn out and damage steel band soaked 30 days in 50 ℃ of coal water with the oversheath many places, and twisted cable is excellent, then carry out the gas explosion test, the flame-retardant crosslinking polyethylene insulated layer of every single-core cable does not all destroy fully, and effect is best, can effectively be fit to the water environment in the coal mine, the requirement that gas explosion does not damage takes place in high humidity.
Description of drawings
Fig. 1 is a cross section structure schematic diagram of the present invention.
Embodiment
As Fig. 1, coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable,
1. described power cable is by three single-core cables, 1 stranded forming;
2. every single-core cable from the inside to surface successively by press copper free wire conductor 1-1, refractory material is that mica tape 1-2, crosslinked polyethylene layer 1-3 constitute;
3. the twisted cable outside is that block water expand rope 2, waterstop of import is that block water zone of swelling 3, inner cushion layer 4, steel band 5 and external sheath layer of import is that high flame retardant polyvinyl chloride 6 constitutes by the packed layer that blocks water from the inside to surface successively.
The preparation technology of this cable is an existing preparation technology.
Claims (6)
1. coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable is characterized in that:
1. described power cable is by at least three stranded forming of single-core cable;
2. every single-core cable is made of conductor, refractory material, crosslinked polyethylene layer from the inside to surface successively
3. the twisted cable outside is made of the packed layer that blocks water, waterstop, inner cushion layer, steel band and external sheath layer from the inside to surface successively.
2. by the described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable of claim 1, it is characterized in that: described twisted cable is three stranded forming of single-core cable.
3. by the described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable of claim 2, it is characterized in that: described conductor is for pressing copper free wire.
4. by the described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable of claim 3, it is characterized in that: described refractory material is a mica tape.
5. by the described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable of claim 4, it is characterized in that: described external sheath layer is a high flame retardant polyvinyl chloride.
6. by the described coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable of claim 4, it is characterized in that: the described packed layer that blocks water is a waterproofing rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230452A CN101728015A (en) | 2008-10-16 | 2008-10-16 | Coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230452A CN101728015A (en) | 2008-10-16 | 2008-10-16 | Coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101728015A true CN101728015A (en) | 2010-06-09 |
Family
ID=42448741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230452A Pending CN101728015A (en) | 2008-10-16 | 2008-10-16 | Coal mine high temperature resistant waterproof flame-retardant crosslinking polyethylene insulated steel band armored power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101728015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682909A (en) * | 2012-05-08 | 2012-09-19 | 江苏珠影特种电缆有限公司 | Power cable capable of resisting high/low temperature |
| CN103413612A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Cross linked polyethylene insulated power cable |
-
2008
- 2008-10-16 CN CN200810230452A patent/CN101728015A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682909A (en) * | 2012-05-08 | 2012-09-19 | 江苏珠影特种电缆有限公司 | Power cable capable of resisting high/low temperature |
| CN103413612A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Cross linked polyethylene insulated power cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100609 |