CN202694890U - Low smoke zero halogen environment friendly light fire-resistant controlling cable - Google Patents
Low smoke zero halogen environment friendly light fire-resistant controlling cable Download PDFInfo
- Publication number
- CN202694890U CN202694890U CN 201220218658 CN201220218658U CN202694890U CN 202694890 U CN202694890 U CN 202694890U CN 201220218658 CN201220218658 CN 201220218658 CN 201220218658 U CN201220218658 U CN 201220218658U CN 202694890 U CN202694890 U CN 202694890U
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- wrapped
- zero halogen
- belting layer
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Abstract
The utility model discloses a low smoke zero halogen environment friendly light fire-resistant controlling cable which comprises a plurality of conductors. Tensile cores are arranged inside the plurality of conductors which are coated with a flame retardant coating, an inner taped covering and a crosslinked polyethylene insulating layer all of which form an insulated wire core. The insulated core twisted together with an insulation tube as the center to a bundle to form a cable core. The outer side of the cable core is covered with an outer taped covering, two drainage wires are respectively arranged in the inner taped covering and the outer taped covering, and the outer side of the outer taped covering is sequentially coated with a shielding layer and a zero halogen and inflaming retarding polyolefin restrictive coating. By applying the design of the inner and outer taped covering and the tensile core, the strength and the fire-resistant of the cable are improved effectively. Besides, the material of the insulating layer is crosslinked polyethylene, the working capacity is reduced, and the insulation resistance and the voltage resistance characteristic are improved. The zero halogen and inflaming retarding polyolefin restrictive coating enables the cable to have an excellent flame retardant property and produce little smoke, and besides, the insulation tube is placed in the center, so that the self weight of the cable is reduced.
Description
Technical field:
The utility model relates to the control cables field, relates in particular to a kind of low-smoke halogen-free environment light-weight refractory control cables.
Background technology:
Fire-resisting cable as its name suggests, refer under certain flame temperature burning condition, cable within a certain period of time the normal transmission electric energy, transmit various control signals, alarm signal, so that illumination, fire protection alarm device and other emergency sets can in the interior continuation energising of fixing time, normally be carried out rescue work.Because fire-resisting cable has good anti-flammability, plays an important role in fire-fighting, is popular with the masses of users.
Cable is widely used in during the daily life of electric power system, colliery, industrial and agricultural production and people draws together, it can safe operation under certain condition of work, but descend, lose insulating capacity even burning when it will cause the insulating material insulation resistance under the malfunction such as overload short circuit, local overheating and outer heat effect, and then initiation fire explosion accident.Because cable is taked to concentrate the mode of laying usually, in case breaking out of fire, flame can spread along cable passage, and fire is enlarged rapidly.Simultaneously, the toxicity of the seondary effect that fire brings such as personnel's injures and deaths, combustion fumes and to the pollution of environment etc. causes the loss more great than fire itself sometimes.Therefore, for the attention that more and more causes countries in the world of selecting of low-smoke zero-halogen fire-resistant cable.In addition, the deadweight of cable itself is larger, brings unnecessary trouble to mounting and installation.
The utility model content:
The purpose of this utility model provides a kind of low-smoke halogen-free environment light-weight refractory control cables, solved cable intensity low, from poisonous mordant gas problem such as a large amount of smog great, that produce in when burning and hydrogen chloride.
Technical scheme of the present utility model is as follows:
Low-smoke halogen-free environment light-weight refractory control cables, comprise several conductors, it is characterized in that: be provided with tensile core in described several conductors, several conductors are enclosed with respectively flame retardant coating, interior belting layer, crosslinked polyetylene insulated layer formation insulated wire cores outward successively, insulated wire cores mutual stranded bunchy centered by insulated tube forms cable core, the cable core outside is enclosed with outer belting layer, be respectively equipped with drainage thread in described interior belting layer, the outer belting layer, the described outer belting layer outside is enclosed with screen, halogen-free anti-flaming polyolefin restrictive coating successively.
Described low-smoke halogen-free environment light-weight refractory control cables is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of multilayer synthetic mica tape, and wrapped Duplication is for being not less than 35%.
Described low-smoke halogen-free environment light-weight refractory control cables is characterized in that: described several conductor materials are that oxygen-free copper bar draws the wire form, satisfy among the GB/T3956 the 1st, the performance requirement of 2 kind of conductor, and cross-sectional area of conductor is generally 0.65～12mm
2
Described low-smoke halogen-free environment light-weight refractory control cables is characterized in that: described screen adopts the wrapped shielding of copper strips or proof copper-wire braided shielding, and the wrapped Duplication of the wrapped shielding of copper strips should be not less than 25%.
The utility model has the advantages that:
The utility model adopts the design of inside and outside two-layer lapping layer and tensile core with the utility model, intensity, the fire-resistance property of cable have effectively been strengthened, simultaneously insulating barrier employing material is crosslinked polyethylene, reduces mutual capacitance, improves insulation resistance, improve voltage-resistent characteristic, the selection of halogen-free anti-flaming polyolefin restrictive coating is so that cable has good fire resistance, and the smog of generation is few, in addition, the center arranges insulated tube, has reduced the deadweight of cable.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
Referring to Fig. 1:
Low-smoke halogen-free environment light-weight refractory control cables, comprise several conductors 1, be provided with tensile core 2 in several conductors 1, several conductor 1 outer flame retardant coating 3, interior belting layer 4, crosslinked polyetylene insulated layer 5 formation insulated wire cores of being enclosed with successively respectively, insulated wire cores mutual stranded bunchy centered by insulated tube 6 forms cable core, the cable core outside is enclosed with outer belting layer 7, be respectively equipped with drainage thread 8 in interior belting layer 4, the outer belting layer 7, outer belting layer 7 outsides are enclosed with screen 9, halogen-free anti-flaming polyolefin restrictive coating 10 successively.
Flame retardant coating 3 adopts the overlapping wrapped formation of multilayer synthetic mica tape, and wrapped Duplication is for being not less than 35%.
Claims (4)
1. low-smoke halogen-free environment light-weight refractory control cables, comprise several conductors, it is characterized in that: be provided with tensile core in described several conductors, several conductors are enclosed with respectively flame retardant coating, interior belting layer, crosslinked polyetylene insulated layer formation insulated wire cores outward successively, insulated wire cores mutual stranded bunchy centered by insulated tube forms cable core, the cable core outside is enclosed with outer belting layer, be respectively equipped with drainage thread in described interior belting layer, the outer belting layer, the described outer belting layer outside is enclosed with screen, halogen-free anti-flaming polyolefin restrictive coating successively.
2. low-smoke halogen-free environment light-weight refractory control cables according to claim 1 is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of multilayer synthetic mica tape, and wrapped Duplication is for being not less than 35%.
3. low-smoke halogen-free environment light-weight refractory control cables according to claim 1, it is characterized in that: described several conductor materials are that oxygen-free copper bar draws the wire that forms, satisfy among the GB/T3956 the 1st, the performance requirement of 2 kind of conductor, cross-sectional area of conductor is generally 0.65～12mm
2
4. low-smoke halogen-free environment light-weight refractory control cables according to claim 1 is characterized in that: described screen adopts the wrapped shielding of copper strips or proof copper-wire braided shielding, and the wrapped Duplication of the wrapped shielding of copper strips should be not less than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218658 CN202694890U (en) | 2012-05-16 | 2012-05-16 | Low smoke zero halogen environment friendly light fire-resistant controlling cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218658 CN202694890U (en) | 2012-05-16 | 2012-05-16 | Low smoke zero halogen environment friendly light fire-resistant controlling cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694890U true CN202694890U (en) | 2013-01-23 |
Family
ID=47550472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218658 Expired - Fee Related CN202694890U (en) | 2012-05-16 | 2012-05-16 | Low smoke zero halogen environment friendly light fire-resistant controlling cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694890U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915164A (en) * | 2014-03-14 | 2014-07-09 | 安徽华海特种电缆集团有限公司 | Plastic insulating fire-resistant control cable |
| CN104064267A (en) * | 2013-03-18 | 2014-09-24 | 苏州宝兴电线电缆有限公司 | Multi-core photovoltaic flexible cable for photovoltaic micro inverter |
| CN104332226A (en) * | 2014-10-27 | 2015-02-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-temperature resistant fireproof cable for aviation |
-
2012
- 2012-05-16 CN CN 201220218658 patent/CN202694890U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064267A (en) * | 2013-03-18 | 2014-09-24 | 苏州宝兴电线电缆有限公司 | Multi-core photovoltaic flexible cable for photovoltaic micro inverter |
| CN103915164A (en) * | 2014-03-14 | 2014-07-09 | 安徽华海特种电缆集团有限公司 | Plastic insulating fire-resistant control cable |
| CN104332226A (en) * | 2014-10-27 | 2015-02-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-temperature resistant fireproof cable for aviation |
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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: 20130123 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |