CN101685681A - Fireproof cable - Google Patents
Fireproof cable Download PDFInfo
- Publication number
- CN101685681A CN101685681A CN200810121412A CN200810121412A CN101685681A CN 101685681 A CN101685681 A CN 101685681A CN 200810121412 A CN200810121412 A CN 200810121412A CN 200810121412 A CN200810121412 A CN 200810121412A CN 101685681 A CN101685681 A CN 101685681A
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- fireproof cable
- oversheath
- layer
- copper mesh
- insulating barrier
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Abstract
The invention relates to a fireproof cable which comprises an outer sheath (6), and an internal core wire is arranged in the outer sheath (6). The internal core wire at least comprises a live line (1)and a null line (2), wherein a first insulation layer (3) is arranged outside the live line (1) and the null line (2). The invention is characterized in that a metal shielding layer (4) formed by a copper mesh is arranged outside the first insulation layer (3), and a filling layer (5) is arranged between the metal shielding layer (4) and the outer sheath (6). Compared with the prior art, the invention has the advantage that the metal shielding layer formed by a copper mesh is arranged outside the first insulation layer of the live line and the null line and the filling layer is arranged between the metal shielding layer and the outer sheath, thus, when the cable is in operation, if fire occurs because of the heating of the live line and the null line, the fire is effectively prevented from radiating outward under the protection of the copper mesh so as to avoid fire disaster. The invention has simple and reasonable structure, and the copper mesh is easy to process and has good flexibility.
Description
Technical field
The present invention relates to a kind of fireproof cable.
Background technology
Along with the arrival of information, the conveying capacity of information becomes explosive growth, and as the effective means of big capacity, long Distance Transmission, cable and optical cable have obtained a large amount of application.Yet in cable material, abnormal factorses such as the aging and load of electric wire are easy to cause the cable burning, the high-power electric appliance equipment that uses in the particularly indoor Flammable atmosphere, as the cable in the power supply connection such as air-conditioning, refrigerator, in long-term use, aging and the overburden work of cable is easy to cause that cable fire is on fire, so people just expect making a kind of fireproof cable.
For example, publication number is that (application number is: Chinese patent 03116676.8) has been announced a kind of light-duty soft non junction fireproof cable to CN 1542868, it is made up of conductor, insulation, filling, overcoat, sheath, conductor adopts three-core structure, cable is straticulate structure, is followed successively by conductor, insulation, overcoat and sheath from inside to outside, is packed layer between insulation and overcoat, wherein insulation comprises organic insulator and inorganic insulation layer for lamination layer structure.But this fireproof cable is when work, if live wire and zero line heating produce burning things which may cause a fire disaster, owing to have only the protection of insulation, when insulating barrier at high temperature was damaged, flame was easily to external radiation.Also for example; publication number is that (patent No. is: Chinese patent 200420061834.5) has also been announced a kind of environment-friendly fireproof cable of silastic structure to CN 2739769; comprise that conductor is single core and multicore structure cable; be provided with the insulating barrier of fire safe type silicon rubber in the cable core outside; the insulating barrier outside is surrounded with halogen-free flameproof glass fabric strip; halogen-free flameproof glass fabric strip outside braided steel wire protective layer, its outer sheath is the sheath of flame retardant type silicon rubber.The fireproof cable of this structure is provided with halogen-free flameproof glass fabric strip and steel wire cover in the insulating barrier outside, though can prevent flame to external radiation, the fireproof cable complex structure of processed glass fabric strip and steel wire cover, manufacture craft is loaded down with trivial details; Simultaneously, fireproof cable need be used steel wire, and steel will make very thin steel wire and be not easy to, and the suppleness that has added the cable of steel wire can descend.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rational in infrastructure, suppleness at above-mentioned prior art preferably, effectively resistance flame is to extraradial fireproof cable.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this fireproof cable, comprise oversheath, be provided with internal core in the oversheath, at least comprise live wire and zero line in the described internal core, described live wire and zero line are provided with first insulating barrier outward, it is characterized in that: described first insulating barrier is provided with the metal screen layer that copper mesh is formed outward, is provided with packed layer between this metal screen layer and the oversheath.
Like this, cable if live wire and zero line heating produce burning things which may cause a fire disaster, because the protection of copper mesh has been arranged, can effectively prevent flame to external radiation when work, avoided the generation of fire, and the copper mesh handling ease, and suppleness is also better.
As improvement, also comprise ground wire in the described internal core, this ground wire also is provided with second insulating barrier outward, is provided with described packed layer between this second insulating barrier and the described oversheath.
Above-mentioned metal screen layer employing count is that the copper mesh more than 85% is formed.Here, count is the percentage that copper wire accounts for whole copper mesh area.
Packed layer described in the present invention adopts high flame retardant PP rope to make.
Described oversheath is provided with recessed, and not only good looking appearance also helps heat radiation.
Described metal screen layer is connected with detection control circuit in the plug; the present invention cooperates with special-purpose ALCI (earth leakage protective device) plug; when detection control circuit in the plug detects the copper wire mesh grid resistance value of power supply internal core and external metallization screen less than certain setting resistance; the ALCI tripping operation is cut off the electricity supply in the plug.
Compared with prior art; the invention has the advantages that: outside the insulating barrier of live wire and zero line, be provided with the metal screen layer that copper mesh is formed, between this metal screen layer and oversheath, be provided with packed layer, like this; cable is when work; if live wire and zero line heating produce burning things which may cause a fire disaster,, can prevent effectively that flame is to external radiation because the protection of copper mesh has been arranged; avoided the generation of fire; simple and reasonable, and the copper mesh handling ease, suppleness is also better.
Description of drawings
Fig. 1 is the structure chart of the embodiment of the invention one;
Fig. 2 is the structure chart of the embodiment of the invention two;
Fig. 3 is the structure chart of the embodiment of the invention three.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one:
Fireproof cable as shown in Figure 1, comprise oversheath 6, be provided with live wire 1 and zero line 2 in the oversheath, be provided with insulating barrier 3, metal screen layer 4, packed layer 5 between live wire and zero line and the oversheath respectively successively, here live wire and zero line are set up in parallel, and oversheath 6 and insulating barrier 3 adopt 105 degree high flame retardant insulating material to make; 5 of packed layers adopt high flame retardant PP rope to make, and metal screen layer 4 employing counts are that the highly-flexible copper free wire braiding more than 85% forms.Oversheath 6 is provided with recessed 61.
Embodiment two:
As shown in Figure 2, different with embodiment one is, is provided with ground wire 7 between live wire 1 and the zero line 2, also is provided with insulating barrier 3 between ground wire 7 and the packed layer 5.
Embodiment three:
As shown in Figure 3, different with embodiment two is, live wire 1, zero line 2, ground wire 7 are not set up in parallel, but line up triangularity, and oversheath 6 is circular.
Among above-mentioned three embodiment; metal screen layer 4 all with in the plug that fireproof cable links to each other detects control circuit and is connected; and cooperate with special-purpose ALCI (earth leakage protective device) plug; when detection control circuit in the plug detects the copper wire mesh grid resistance value of power supply internal core and external metallization screen less than certain setting resistance; for example during 20K ohm; the ALCI tripping operation is cut off the electricity supply in the plug.
Claims (6)
1, a kind of fireproof cable, comprise oversheath (6), oversheath is provided with internal core in (6), at least comprise live wire (1) and zero line (2) in the described internal core, outer first insulating barrier (3) that is provided with of described live wire (1) and zero line (2), it is characterized in that: the outer metal screen layer (4) that is provided with the copper mesh composition of described first insulating barrier (3) is provided with packed layer (5) between this metal screen layer (4) and the oversheath (6).
2, fireproof cable according to claim 1 is characterized in that: also comprise ground wire (7) in the described internal core, this ground wire (7) is outer also to be provided with second insulating barrier, is provided with described packed layer (5) between this second insulating barrier and the described oversheath (6).
3, fireproof cable according to claim 1 and 2 is characterized in that: described metal screen layer (4) employing count is that the copper mesh more than 85% is formed.
4, fireproof cable according to claim 3 is characterized in that: described packed layer adopts high flame retardant PP rope to make.
5, fireproof cable according to claim 3 is characterized in that: described oversheath (6) is provided with recessed.
6, fireproof cable according to claim 1 is characterized in that: described metal screen layer (4) is connected with detection control circuit in the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810121412A CN101685681A (en) | 2008-09-28 | 2008-09-28 | Fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810121412A CN101685681A (en) | 2008-09-28 | 2008-09-28 | Fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101685681A true CN101685681A (en) | 2010-03-31 |
Family
ID=42048781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810121412A Pending CN101685681A (en) | 2008-09-28 | 2008-09-28 | Fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101685681A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047266A (en) * | 2015-08-14 | 2015-11-11 | 昆山信昌电线电缆有限公司 | Wear-resistant halogen-free high-flame-retardant flexible shielding control cable |
| CN108933001A (en) * | 2018-08-20 | 2018-12-04 | 安徽新科电缆集团股份有限公司 | A kind of high fire-retardance high temperature-resistant cable |
| CN111532602A (en) * | 2020-05-15 | 2020-08-14 | 东台市诚旺电热科技有限公司 | Novel explosion-proof oil drum heating band |
| CN112992409A (en) * | 2021-04-13 | 2021-06-18 | 浙江东通光网物联科技有限公司 | Photoelectric composite butterfly cable |
| CN114156006A (en) * | 2021-12-15 | 2022-03-08 | 重庆鸽牌电线电缆有限公司 | Double-layer insulating sheath waterproof fixed installation wire adapting to indoor construction environment |
| WO2023221151A1 (en) * | 2022-05-17 | 2023-11-23 | 中山市开普电器有限公司 | Power cable of which electrical leakage can be detected by leakage protector |
-
2008
- 2008-09-28 CN CN200810121412A patent/CN101685681A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047266A (en) * | 2015-08-14 | 2015-11-11 | 昆山信昌电线电缆有限公司 | Wear-resistant halogen-free high-flame-retardant flexible shielding control cable |
| CN108933001A (en) * | 2018-08-20 | 2018-12-04 | 安徽新科电缆集团股份有限公司 | A kind of high fire-retardance high temperature-resistant cable |
| CN108933001B (en) * | 2018-08-20 | 2020-01-07 | 安徽新科电缆集团股份有限公司 | High-flame-retardant high-temperature-resistant cable |
| CN111532602A (en) * | 2020-05-15 | 2020-08-14 | 东台市诚旺电热科技有限公司 | Novel explosion-proof oil drum heating band |
| CN112992409A (en) * | 2021-04-13 | 2021-06-18 | 浙江东通光网物联科技有限公司 | Photoelectric composite butterfly cable |
| CN114156006A (en) * | 2021-12-15 | 2022-03-08 | 重庆鸽牌电线电缆有限公司 | Double-layer insulating sheath waterproof fixed installation wire adapting to indoor construction environment |
| WO2023221151A1 (en) * | 2022-05-17 | 2023-11-23 | 中山市开普电器有限公司 | Power cable of which electrical leakage can be detected by leakage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100331 |