CN204166986U - A kind of communications cable - Google Patents
A kind of communications cable Download PDFInfo
- Publication number
- CN204166986U CN204166986U CN201420512615.8U CN201420512615U CN204166986U CN 204166986 U CN204166986 U CN 204166986U CN 201420512615 U CN201420512615 U CN 201420512615U CN 204166986 U CN204166986 U CN 204166986U
- Authority
- CN
- China
- Prior art keywords
- restrictive coating
- inner restrictive
- thread core
- insulating barrier
- conductor thread
- Prior art date
- 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 - Fee Related
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Abstract
The utility model discloses a kind of communications cable, cable comprises conductor thread core, insulating barrier, semi-conductive shield, fireprotection layer, inner restrictive coating and outer armor restrictive coating, described fireprotection layer is between inner restrictive coating and outer armor restrictive coating, fireprotection layer material is inorganic fire dividing plate, can be fire-retardant to a certain extent.Described conductor thread core is divided into three; described conductor thread core is wrapped with insulating barrier; inner restrictive coating is provided with outside insulating barrier; inner restrictive coating can protect conductor thread core; reduce external force to the damage of conductor thread core; the immersion of moisture can also be prevented to a certain extent, in inner restrictive coating, be provided with temperature sensor, can detection streamer state of temperature.Three-layer semiconductor screen is provided with outside three conductor core wires, semi-conductive shield is close to the insulating barrier of parcel conductor thread core, the air gap of the rough and stranded generation of core of conductive surface can be prevented and cause conductor and insulating barrier generation partial discharge, making Signal transmissions safety and stability more.
Description
Technical field
The utility model relates to a kind of cable, particularly relates to a kind of communications cable.
Background technology
Line cable industry is a supporting industry, occupies the output value of Chinese electrician trade 1/4th.Its product category is numerous, and range of application is very extensive, relates to the industries such as electric power, building, communication, manufacture, all closely related with each department of national economy.Cable is the various motor of transmission of electric energy, transmission of information and manufacture, instrument, instrument, realizes the indispensable basic equipment of electromagnetic energy conversion, is basic product necessary in following electrification, informationized society.Along with the economic development of China, the use of telecommunication cable gets more and more, the state of temperature of Real-Time Monitoring cable, can Timeliness coverage potential faults.Cable is subject to the impacts such as sleet, sunshine, electromagnetic induction, chemical corrosion and charge carriers amount in long-time running, can cause the ageing of insulation of cable or the change of load, thus cause cable variations in temperature.As when certain position insulating barrier of cable because of aging breakdown time, the temperature of this point can raise, monitor the temperature information of this cable, [cables many is at present three-phase conducting wire can to obtain the stable situation of cable, easily air gap is formed between cable heart yearn and insulating barrier, conductive surface is rough, and electric field can be caused to concentrate.Cable is in use as suffered the erosion of subversive gas, and insulating barrier starts ageing hardening gradually, and embrittlement is withered and fallen, greatly reduces the insulation function of cable.Some cable long term exposure works in atmosphere, easy breaking out of fire, common polyvinyl chloride cable is after chance fire, the ability of power supply is just lost within the very fast time, result causes the automatic control circuits such as fire pump, elevator, emergency lighting and warning normally to work, to fire-extinguishing and lifesaving, property is withdrawn and is brought very large trouble, break by the teeth cable and the wire short-circuiting accident caused of mouse also happens occasionally, according to statistics, the annual mouse of China breaks electric wire and the economic loss caused by the teeth at least more than 5,000 ten thousand.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of communications cable is provided, there is fire prevention, feature that outer armor restrictive coating mechanical strength is large, avoid because conductive surface is rough and the air gap of the stranded generation of core and cause conductor and insulating barrier generation partial discharge simultaneously, thus ensure its useful life.
The technical solution of the utility model is: a kind of communications cable, comprise conductor thread core, insulating barrier, semi-conductive shield, fireprotection layer, inner restrictive coating and outer armor restrictive coating, described fireprotection layer is between inner restrictive coating and outer armor restrictive coating, fireprotection layer material is inorganic fire dividing plate, can be fire-retardant to a certain extent.Described conductor thread core is divided into three; described conductor thread core is wrapped with insulating barrier; inner restrictive coating is provided with outside insulating barrier; temperature sensor is provided with in inner restrictive coating; inner restrictive coating can protect conductor thread core; reduce external force to the damage of conductor thread core, the immersion of moisture can also be prevented to a certain extent.Be provided with three-layer semiconductor screen outside three conductor core wires, semi-conductive shield is close to the insulating barrier of parcel conductor thread core.
Further, described semi-conductive shield is polyphenylene oxide or polyformaldehyde.
Further, described inner restrictive coating is aluminium alloy or lead alloy.
Further, described fireprotection layer and inner restrictive coating consistency of thickness.
Further, described outer armor plastic layer is galvanized steel strip.
Further, described conductor thread core is divided into three, and the external diameter of every strip conductor core is identical.
Further, the temperature sensor in described inner restrictive coating is thermal resistance temperature sensor
Further, described fireprotection layer is WFB-1 inorganic fire dividing plate.
The beneficial effects of the utility model are: a kind of communications cable, comprise conductor thread core, insulating barrier, semi-conductive shield, fireprotection layer, inner restrictive coating and outer armor restrictive coating, described outer armor restrictive coating material galvanized steel strip, galvanized steel strip has the large feature of mechanical strength, can effectively prevent mouse electric wire of breaking by the teeth from causing damage.Described fireprotection layer is between inner restrictive coating and outer armor restrictive coating, fireprotection layer material is WFB-1 inorganic fire dividing plate, it is good that this fire barrier has fire resistance, meet fire and can not reach more than 3 hours burning time, it is indeformable when temperature reaches 1000 DEG C, combustibility reaches the A grade standard that GB8624 specifies, has mechanical strength high, the feature that the rotten property of water-fast, oily, chemically-resistant is strong, nontoxic.Described conductor thread core is divided into three; described conductor thread core is wrapped with insulating barrier; inner restrictive coating is provided with outside insulating barrier; temperature sensor is provided with in inner restrictive coating; can the state of temperature of Real-Time Monitoring cable, Timeliness coverage potential faults, inner restrictive coating can protect conductor thread core; reduce external force to the damage of conductor thread core, the immersion of moisture can also be prevented to a certain extent.Three-layer semiconductor screen is provided with outside three conductor core wires, semi-conductive shield is close to the insulating barrier of parcel conductor thread core, the air gap of the rough and stranded generation of core of conductive surface can be prevented and cause conductor and insulating barrier generation partial discharge, making Signal transmissions safety and stability more.
Accompanying drawing explanation
Fig. 1 is profile of the present utility model.
Wherein: 1, inner restrictive coating 2, fireprotection layer 3, outer armor plastic layer
4, insulating barrier 5, conductor thread core 6, semi-conductive shield
7, temperature sensor
Embodiment
Below in conjunction with accompanying drawing, brief description is made to embodiment of the present utility model.
The communications cable as a kind of in Fig. 1, comprise conductor thread core 5, insulating barrier 4, semi-conductive shield 6, fireprotection layer 2, inner restrictive coating 1 and outer armor restrictive coating 3, described fireprotection layer 2 is between inner restrictive coating 1 and outer armor restrictive coating 3, and fireprotection layer 2 material is inorganic fire dividing plate.Described conductor thread core 5 is divided into three; described conductor thread core 5 is wrapped with insulating barrier 4; inner restrictive coating 1 is provided with outside insulating barrier 4; temperature sensor 7 is provided with in inner restrictive coating 1; inner restrictive coating 1 can protect conductor thread core 5; reduce external force to the damage of conductor thread core 5, be provided with three-layer semiconductor screen 6 outside three conductor core wires 5, semi-conductive shield 6 is close to the insulating barrier 4 of parcel conductor thread core.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. a communications cable, comprise protection jacket layer and cable, described cable comprises conductor thread core, insulating barrier, semi-conductive shield, fireprotection layer, inner restrictive coating and outer armor restrictive coating, it is characterized in that: the utility model includes conductor thread core from inside to outside respectively, insulating barrier, semi-conductive shield, inner restrictive coating, fireprotection layer, outer armor restrictive coating, described fireprotection layer is between inner restrictive coating and outer armor restrictive coating, described conductor thread core is divided into three, conductor thread core is wrapped with insulating barrier, temperature sensor is provided with in inner restrictive coating, three-layer semiconductor screen is provided with outside three conductor core wires, semi-conductive shield is positioned at inner restrictive coating, semi-conductive shield one end and inner restrictive coating are mutually permanently connected, semi-conductive shield is close to the insulating barrier of parcel conductor thread core.
2. according to a kind of communications cable described in claim 1, it is characterized in that: described semi-conductive shield is polyphenylene oxide or polyformaldehyde.
3. according to a kind of communications cable described in claim 1, it is characterized in that: described inner restrictive coating is aluminium alloy or lead alloy.
4. according to a kind of communications cable described in claim 1, it is characterized in that: described fireprotection layer and inner restrictive coating consistency of thickness.
5. according to a kind of communications cable described in claim 1, it is characterized in that: described outer armor plastic layer is galvanized steel strip.
6. according to a kind of communications cable described in claim 1, it is characterized in that: described conductor thread core is divided into three, the external diameter of every strip conductor core is identical.
7. according to a kind of communications cable described in claim 1, it is characterized in that: the temperature sensor in described inner restrictive coating is thermal resistance temperature sensor.
8. according to a kind of communications cable described in claim 1, it is characterized in that: described fireprotection layer is WFB-1 inorganic fire dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512615.8U CN204166986U (en) | 2014-09-05 | 2014-09-05 | A kind of communications cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512615.8U CN204166986U (en) | 2014-09-05 | 2014-09-05 | A kind of communications cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166986U true CN204166986U (en) | 2015-02-18 |
Family
ID=52540651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420512615.8U Expired - Fee Related CN204166986U (en) | 2014-09-05 | 2014-09-05 | A kind of communications cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733078A (en) * | 2015-02-26 | 2015-06-24 | 安徽环宇电缆集团有限公司 | Two-core twisted-pair cable |
| CN105489307A (en) * | 2015-12-18 | 2016-04-13 | 浙江炬泰新材料科技有限公司 | Intelligent, water-proof and damp-proof cable |
-
2014
- 2014-09-05 CN CN201420512615.8U patent/CN204166986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733078A (en) * | 2015-02-26 | 2015-06-24 | 安徽环宇电缆集团有限公司 | Two-core twisted-pair cable |
| CN105489307A (en) * | 2015-12-18 | 2016-04-13 | 浙江炬泰新材料科技有限公司 | Intelligent, water-proof and damp-proof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |