CN201435260Y - Moisture-shielding shielded flame-retardant communication cables for coal mines - Google Patents
Moisture-shielding shielded flame-retardant communication cables for coal mines Download PDFInfo
- Publication number
- CN201435260Y CN201435260Y CN2009203023283U CN200920302328U CN201435260Y CN 201435260 Y CN201435260 Y CN 201435260Y CN 2009203023283 U CN2009203023283 U CN 2009203023283U CN 200920302328 U CN200920302328 U CN 200920302328U CN 201435260 Y CN201435260 Y CN 201435260Y
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- Prior art keywords
- cable
- flame
- retardant
- aluminum
- moisture
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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.)
- Expired - Lifetime
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 49
- 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 28
- 238000004891 communication Methods 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 title abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 31
- 239000004033 plastic Substances 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 239000004698 Polyethylene Substances 0.000 claims abstract description 8
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- -1 polyethylene Polymers 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 24
- 239000010949 copper Substances 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000000126 substance Substances 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
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- Insulated Conductors (AREA)
Abstract
一种煤矿用挡潮屏蔽阻燃通信电缆，由内至外有铜导线、绝缘层和阻燃外护套层，所述铜导线的外侧挤压包覆有由聚烯烃材料制成的绝缘层，形成绝缘线芯，铜导线与聚乙烯绝缘层之间无任何间隙；绝缘线芯共2对，绞合成为缆线，缆线外侧包覆包带，包带外侧包有铝－塑复合挡潮屏蔽层，铝－塑复合挡潮屏蔽层外面挤压包覆有阻燃外护套层，铝－塑复合挡潮屏蔽层与阻燃外护套层之间无任何间隙。可阻止水分和潮气的进入，提高电缆使用寿命，而且起到屏蔽作用，避免电缆运行时发生信号失真和误报警，在对数、挡潮性能、屏蔽性能和阻燃性能方面均能满足煤矿的使用要求。
A moisture-shielding, shielded, and flame-retardant communication cable for coal mines, which has a copper wire, an insulating layer, and a flame-retardant outer sheath layer from the inside to the outside, and the outer side of the copper wire is extruded and coated with an insulating layer made of polyolefin material , forming an insulated wire core, without any gap between the copper wire and the polyethylene insulation layer; a total of 2 pairs of insulated wire cores, twisted into a cable, the outside of the cable is covered with a tape, and the outside of the tape is covered with an aluminum-plastic composite barrier The moisture shielding layer, the aluminum-plastic composite moisture-blocking shielding layer is extruded and coated with a flame-retardant outer sheath layer, and there is no gap between the aluminum-plastic composite moisture-blocking shielding layer and the flame-retardant outer sheath layer. It can prevent the entry of moisture and moisture, improve the service life of the cable, and play a shielding role to avoid signal distortion and false alarms during cable operation. It can meet the requirements of coal mines in terms of logarithm, moisture resistance, shielding performance and flame retardancy. Requirements.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of flame-retardant communication cable.
Background technology
Significantly raising along with coal in China output, can not satisfy the demand with the signal transmission and the gas monitor of flame-retardant communication cable in the colliery of little logarithm, and it is also more and more higher to the requirement of the retaining of cable tide performance, shielding properties and fire resistance, in this case, the mining flame-retardant telecommunication cable of heavy in section, many logarithms is developed in an urgent demand, and improves one's methods will having better aspect retaining tide performance, shielding properties and the fire resistance of cable.
The defective that existing colliery exists with flame retardant cable:
Only stipulated the specification requirement of 5 pairs and following colliery in the industry standard (MT818.14-1999) that State Administration of Coal Industry works out with flame-retardant communication cable, and the industry standard (YD/T322-96) that the Ministry of Posts and Telecommunications works out does not satisfy the requirement of the fire-retardant grade of colliery downhole anti-explosion though max log can reach 2400 pairs.Because coal mine yield increase gradually, the signal transmission also increases thereupon, the communication cable for mine of little logarithm just needs many overlapping the laying of cable when laying, may cause the natural attenuation frequency of cable identical, cause the mutual interference of signal transmission phase, thereby false alarm can take place, and can strengthen construction intensity during many overlapping laying, take the space of mine, influence the underground work fail safe.
On the other hand, the retaining of existing cable tide performance and shielding properties are not good enough, and cable produces distorted signals and false alarm in the down-hole moisture-sensitive.Because the product standard of telecommunication cable is only stipulated the average thickness and the thinnest dot thickness of sheath, thereby the pull-tube type structure is all adopted in the oversheath production of cable manufacturer, the sheath of pull-tube type structure is pine relatively, the space is arranged between insulated wire cores, air and damp vapour easily vertically circulate along cable, influence the anti-flammability and the damp proof insulation of cable.
Therefore, the colliery is badly in need of at logarithm, is kept off and will further improve aspect damp performance, shielding properties and the fire resistance with flame-retardant communication cable, to reduce because the loss that cable fault was caused.
The utility model content
In order to overcome the deficiency of existing colliery with flame-retardant communication cable, the utility model provides a kind of colliery with retaining tide shielding flame-retardant communication cable, solve telecommunication cable at logarithm, keep off and all will satisfy the technical problem that the colliery requires aspect damp performance, shielding properties and the fire resistance.
The technical scheme that its technical problem that solves the utility model adopts is:
There are copper conductor, insulating barrier and fire-retardant external sheath layer in a kind of colliery from the inside to the outside with retaining tide shielding flame-retardant communication cable, it is characterized in that:
The outside extruding of described copper conductor is coated with the insulating barrier of being made by polyolefine material, forms insulated wire cores, no any gap between copper conductor and the polyethylene layer; Totally 2 pairs of insulated wire cores, the stranded cable that becomes, the cable outside coats band, and the band outside is surrounded by aluminum-plastic composite and keeps off damp screen; Aluminum-plastic composite is kept off the outside extruding of damp screen and is coated with fire-retardant external sheath layer, and aluminum-plastic composite is kept off no any gap between damp screen and the fire-retardant external sheath layer.
Described aluminum-plastic composite is kept off the aluminium face that covers of damp screen can be towards the inboard.
It can be to be formed by the overlapping wrapped or vertical bag of aluminium-plastic tape that described aluminum-plastic composite is kept off damp screen.
Described fire-retardant external sheath layer can be the flame-proof polyvinyl chloride protective cover material.
Described insulated wire cores can and be pushed the insulating barrier that is coated on this root copper conductor outside by a copper conductor and be formed.
The beneficial effects of the utility model are as follows:
1, the electrical property of cable and mechanical performance satisfy the requirement of industry standard fully.
2, polyolefin insulation not only has excellent electric performance and resistance to chemical corrosion, and because material proportion is little, thus also have in light weight, easy for installation, do not laid advantage such as drop restriction.And has favorable waterproof property.
3, many logarithms cable pitch difference can be avoided the mutual interference of signal phase, the enhancing signal transmission, and polyolefine material is in dielectric, because the relative dielectric constant minimum when therefore being used for the insulation of telecommunication cable, also has fabulous stable signal transmission.
4, telecommunication cable is when adopting aluminum-plastic composite to keep off damp screen, and not only interference free performance is very good, but also can keep off tide.Be applicable to the inclined gallery and the gallery of comparison humidity.
5, the armouring flame-retardant communication cable can resist bigger mechanical external force under the prerequisite that guarantees product performance.
6, the fire resistance of cable is good, charing height≤2.5m during the bunchy burning.
The utility model replaces the overlapping of many cables to lay with a cable aspect logarithm, because the frequency of a cable when making is different, just avoided the mutual interference problem of signal when transmission, laying of single cable can reduce construction intensity, save the mine space, improve the underground work safety guarantee, satisfy the construction needs of modernized mine.
The insulating layer material of the utility model cable adopts polyolefine material, extrusion equipment adopts overall plastic local telephone network insulation series connection production line, this production line adopts system controlled by computer, and show, follow the tracks of the particulars in the production process at any time, can carry out the technology adjustment to the abnormal conditions in the production process at any time, the quality of product is guaranteed.
Insulated wire cores strand to the time adopt different twisting pitch, avoided the cable natural attenuation identical and cause the mutual interference of signal phase.
For making the damp waterproof of the more effective retaining of cable, employing overlapping wrapped aluminum-plastic composite behind the stranded stranding of insulated wire cores is kept off damp screen, has effectively played the effect that waterproof blocks water.Stop entering of moisture and moisture, improve the useful life of cable, and play shielding action, the bending radius of cable is adapted at the down-hole and lays generation distorted signals and false alarm when avoiding the cable operation simultaneously.Adopt polythene material to make moistureproof inner sheath,, improved protection against the tide, the protected against the effects of immersion performance of cable, but make cable still permanent load use under wet environment because polyethylene has excellent water resistance.
The utility model adopts the outer jacket of high flame retardant section bar material as cable, the oxygen index of this outer jacket 〉=40, and during cable fire, fire-retardant external sheath layer can charing become shell, forms fire-retardant barrier together, and the combustibles (PE) of cable inside are isolated from the outside out; The time can decompose again in burning and to discharge steam, play the effect of cooling.Simultaneously by the design extrusion die, change the expressing technique of traditional oversheath, the employing pressure type is extruded, make sheath material be filled into the gap of insulated wire cores, with the inner tight combination, make atmosphere draught-free during cable fire because of the centre is very close to each other, the anti-flammability of cable is had greatly improved, solve cable simultaneously and vertically advanced the problem of damp vapour, and adopted pressure type to extrude cable outward appearance rounding, attractive in appearance.Avoided because of the oversheath of pull-tube type structure pine relatively, and the space is arranged between insulated wire cores, air and damp vapour easily vertically circulate along cable, influence the anti-flammability and the damp proof insulation of cable.
The insulating barrier of the utility model cable and external sheath layer all adopt the squash type structure.Oversheath not only has the favorable mechanical performance, but also has good flame retardant property, plays and both protects the cable internal part, again double effects that can be fire-retardant.Aspect fire resistance, pass through the design extrusion die, change traditional expressing technique, the employing pressure type is extruded, make sheath material be filled into the gap and the inner tight combination of insulated wire cores, anti-flammability is had greatly improved, solved the problem that cable vertically advances damp vapour simultaneously, and adopt pressure type to extrude cable outward appearance rounding, attractive in appearance, have excellent flame-retardant, applicable to the place higher to the safety of coal mines reliability requirement.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the utility model colliery with retaining tide shielding flame-retardant communication cable.
Reference numeral: 1-copper conductor, 2-insulating barrier, 3-band, 4-aluminum-plastic composite are kept off damp screen, the fire-retardant external sheath layer of 5-.
Embodiment
Embodiment is referring to shown in Figure 1, and there are copper conductor 1, insulating barrier 2 and fire-retardant external sheath layer 5 in this colliery from the inside to the outside with retaining tide shielding flame-retardant communication cable.The structure of the conductor of cable and size conforms standard GB/T3956.
The outside extruding of described copper conductor 1 is coated with the insulating barrier of being made by polyolefine material 2, forms insulated wire cores, and insulated wire cores is made up of the insulating barrier 2 that a copper conductor 1 and extruding are coated on this root copper conductor outside.Insulation thickness meets MT818.14-1999 and Q/SC 011-2007 stipulates accordingly.The polyolefin insulation Specifeca tion speeification meets H62-1389.No any gap between copper conductor and the polyethylene layer; Totally 2 pairs of insulated wire cores, the stranded cable that becomes, insulated wire cores strand to the time adopt different twisting pitch.Structure has expanded 7/0.37mm, 7/0.43mm, 7/0.52mm, 1/1.0mm, 1/1.13mm, 1/1.38mm structure on the basis that keeps 7/0.28mm and 1/0.8mm.
The cable outside coats band 3, and the overlapping aluminum-plastic composite that is surrounded with in band 3 outsides is kept off damp screen 4, and it is that lap is not less than 20% of bandwidth by overlapping wrapped the forming of aluminium-plastic tape that described aluminum-plastic composite is kept off damp screen 4, and minimum must not be lower than 5mm.The aluminium that covers that described aluminum-plastic composite is kept off damp screen 4 faces to the inside.
Aluminum-plastic composite is kept off damp screen outside and is coated with fire-retardant external sheath layer.Adopt polythene material to make moistureproof sheath.
Aluminum-plastic composite is kept off the extruding of damp screen outside and is coated with fire-retardant external sheath layer 5, and described fire-retardant external sheath layer 5 adopts blue polyvinyl chloride cable material, and increases fire retardant and make oxygen index 〉=40%, and its thickness meets the regulation of GB2952.Aluminum-plastic composite is kept off no any gap between damp screen and the fire-retardant external sheath layer.
This colliery is characterized in that with keeping off the damp manufacture method that shields flame-retardant communication cable step is as follows:
A, selection copper conductor 1.
B, the method for pushing in the employing of copper conductor outside coat polyethylene layer 2, do not have the gap between copper conductor and the polyethylene layer.
C, employing power frequency spark equipment, dried the having a try of the spark of finishing the cable insulation core tested.
D, will wrap the copper conductor strand of insulating barrier to becoming cable, cable outside parcel band 3.
E, coat aluminum-plastic composite in band 3 outsides and keep off damp screen 4; It is with overlapping wrapped the forming of aluminium-plastic tape that described aluminum-plastic composite is kept off damp screen 4.
The method of f, employing extruding coats fire-retardant external sheath layer 5, and aluminum-plastic composite is kept off between damp screen and the fire-retardant external sheath layer does not have the gap.
The colliery is to adopt power frequency spark equipment behind conductor (if conductor is a lay configuration advanced person column conductor strand system) extruded insulation with the production technology of retaining tide shielding flame-retardant communication cable, dried the having a try of the spark of finishing the cable insulation core tested, adopt pair twist equipment, the strand of finishing insulated wire cores is to process, adopt stranding equipment, finish the stranding of cable core, wrapped or vertical bag aluminum-plastic composite is kept off damp screen, increase the humidity resistance that blocks water of cable, if armoured cable also needs to squeeze sheath and carry out armouring, adopt extrusion equipment, finish the sheath extrusion of cable.
Claims (5)
1. there are copper conductor (1), insulating barrier (2) and fire-retardant external sheath layer (5) in a colliery from the inside to the outside with retaining tide shielding flame-retardant communication cable, it is characterized in that:
The outside extruding of described copper conductor (1) is coated with the insulating barrier of being made by polyolefine material (2), forms insulated wire cores, no any gap between copper conductor and the polyethylene layer; Totally 2 pairs of insulated wire cores, the stranded cable that becomes, the cable outside coats band (3), and band (3) outside is surrounded by aluminum-plastic composite and keeps off damp screen (4); Aluminum-plastic composite is kept off the outside extruding of damp screen and is coated with fire-retardant external sheath layer (5), and aluminum-plastic composite is kept off no any gap between damp screen and the fire-retardant external sheath layer.
2. colliery according to claim 1 shields flame-retardant communication cable with the retaining tide, and it is characterized in that: the aluminium that covers that described aluminum-plastic composite is kept off damp screen (4) faces to the inside.
3. colliery according to claim 1 shields flame-retardant communication cable with the retaining tide, and it is characterized in that: it is to be formed by the overlapping wrapped or vertical bag of aluminium-plastic tape that described aluminum-plastic composite is kept off damp screen (4).
4. colliery according to claim 1 shields flame-retardant communication cable with the retaining tide, and it is characterized in that: described fire-retardant external sheath layer (5) is the flame-proof polyvinyl chloride protective cover material.
5. colliery according to claim 1 shields flame-retardant communication cable with the retaining tide, it is characterized in that: described insulated wire cores is made up of the insulating barrier (2) that a copper conductor (1) and extruding are coated on this root copper conductor outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203023283U CN201435260Y (en) | 2009-04-17 | 2009-04-17 | Moisture-shielding shielded flame-retardant communication cables for coal mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203023283U CN201435260Y (en) | 2009-04-17 | 2009-04-17 | Moisture-shielding shielded flame-retardant communication cables for coal mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435260Y true CN201435260Y (en) | 2010-03-31 |
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ID=42054075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203023283U Expired - Lifetime CN201435260Y (en) | 2009-04-17 | 2009-04-17 | Moisture-shielding shielded flame-retardant communication cables for coal mines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435260Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254600A (en) * | 2011-05-06 | 2011-11-23 | 苏州市吴江特种电缆二厂有限公司 | Unshielded digital horizontal twisted pair cable |
| CN112420251A (en) * | 2019-08-23 | 2021-02-26 | 日立金属株式会社 | Cable for movable part |
| CN114822974A (en) * | 2022-04-24 | 2022-07-29 | 深圳讯诺科技有限公司 | High-speed core wire and cable |
-
2009
- 2009-04-17 CN CN2009203023283U patent/CN201435260Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254600A (en) * | 2011-05-06 | 2011-11-23 | 苏州市吴江特种电缆二厂有限公司 | Unshielded digital horizontal twisted pair cable |
| CN112420251A (en) * | 2019-08-23 | 2021-02-26 | 日立金属株式会社 | Cable for movable part |
| CN114822974A (en) * | 2022-04-24 | 2022-07-29 | 深圳讯诺科技有限公司 | High-speed core wire and cable |
| CN114822974B (en) * | 2022-04-24 | 2024-02-06 | 深圳讯诺科技有限公司 | High-speed core wires and cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENYANG CHANGSHUN CABLE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: CHEN LIANQING Effective date: 20101216 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101216 Address after: 110121 No. 12 West Hangzhou Road, Shenyang, Liaoning, Shenbei New Area Patentee after: SHENYANG CHANGSHUN CABLE MANUFACTURING CO., LTD. Address before: 110121 No. 12 West Hangzhou Road, Shenyang, Liaoning, Liaoning, Shenbei New Area Patentee before: Chen Lianqing |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
|
| CX01 | Expiry of patent term |