CN202976983U - Flexible fireproof rubber sheathed cable with high tensile strength - Google Patents
Flexible fireproof rubber sheathed cable with high tensile strength Download PDFInfo
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- CN202976983U CN202976983U CN 201220695268 CN201220695268U CN202976983U CN 202976983 U CN202976983 U CN 202976983U CN 201220695268 CN201220695268 CN 201220695268 CN 201220695268 U CN201220695268 U CN 201220695268U CN 202976983 U CN202976983 U CN 202976983U
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Abstract
The utility model discloses a flexible fireproof rubber sheathed cable with high tensile strength. The flexible fireproof rubber sheathed cable comprises a cable core; a plurality of insulated cores and three reinforcing cores are stranded to form the cable core, filling layers are arranged in gaps in the cable core, an inner sheath and an armor layer are extruded on the outside of the cable core, an outer sheath is extruded on the outermost layer of the cable core, and an asphalt layer is coated on the outer surface of the outer sheath; a conductor, a conductor shielding layer, an insulating layer and an insulating shielding layer are combined to form each insulated core, and the conductor shielding layer, the insulating layer and the insulating shielding layer of each insulated core sequentially cover the outside of the corresponding conductor. The flexible fireproof rubber sheathed cable has the advantages of high flexibility and tensile property, good bending property and fireproof performance, long service life and the like.
Description
Technical field
The utility model relates to the power cable field, particularly a kind of flexible, fire line good, resistance to tension is strong Plastic-sheathed Cable.
Background technology
now, generally adopt two kinds of methods to improve the tensile property of cable both at home and abroad, a kind of is to increase the tensile property that soft steel core (or steel wire rope) improves whole strand of copper wire in the copper conductor of Plastic-sheathed Cable, another kind is to increase the resistance to tension that the tension silk improves whole strand of cable core in the middle of the cable insulation core, as the reinforcing element that is formed by the steel wire strand twisted wire in cable core of mentioning in ZL201020133016.7 and ZL 201020133017.1, ZL 200420062459.6, adopt in ZL 200520072377.4 and ZL 201120096786.3 with strengthening the be twisted together tension silk of formation of the soft steel wire of steel wire or multiply, then be placed on the performances such as stretching resistance that improve Plastic-sheathed Cable in conductor or cable core.In the time of can satisfying like this Plastic-sheathed Cable and be moved in actual use bending, the mechanism of opposing pulling force to copper conductor, make not fracture of copper conductor, extends the useful life of Plastic-sheathed Cable.
according to long-term actual operating position, through market survey, after dissection, the above two kinds of tensile type Plastic-sheathed Cables of analysis, can find that all there is very large shortcoming in the Plastic-sheathed Cable of two types: when increasing stone dead wire (or steel wire rope) in copper conductor, at the stressed stone dead wire (or steel wire rope) that makes of cable when occuring bending and deformation, easily to copper wire conductor pinch, make it even fracture of distortion, when increasing the reinforcing element of pulling force silk or steel wire composition in insulated wire cores, when pulling force silk or reinforcing element are occured bending and deformation, easily to the insulated wire cores outer jacket, screens etc. cause friction or extruding, because the location comparison of pulling force silk and reinforcing element is fixed, through after the long period, the outer jacket of insulated wire cores and screen will be damaged even worn out, both of these case all can affect the normal operation of cable, interrupt transmission of electricity when serious, cause fault or the accidents such as short circuit breaking out of fire, the desired value that should produce effect and use this class Plastic-sheathed Cable when therefore failing to reach design, even under the impact of some force majeure that causes of some occasion or natural calamity, this type of old cable is also shorter than the general common Plastic-sheathed Cable life-span on the contrary.
The utility model content
The technical problems to be solved in the utility model is to provide that a kind of high flexibility, high tensile ability, good bending property, fire protecting performance are good, the Plastic-sheathed Cable of long service life.
A kind of fire resistant flexible high tensile Plastic-sheathed Cable described in the utility model, comprise cable core, its cable core is by some eradication edge cores and three stranded forming of strengthening core, gap in cable core is provided with packed layer, extrude inner sheath, armour outside cable core, outermost layer extrudes oversheath, outside jacket outer surface asphalt-coating layer.
Described insulated wire cores is by conductor and is coated on successively conductor outer conductor shield, insulating barrier, insulation screen and combines.
Described conductor adopts and forms copper stranded pressing of single line, and cross section is circular configuration.
Described strengthening core is to form by the multiply finer wire is stranded.
The beneficial effects of the utility model are:
1, the utility model is by arranging three strengthening cores simultaneously stranded with insulated wire cores in cable core, not only can strengthen greatly tensile property and the bending property of cable, each section that makes cable conductor is in the face of pulling force radially and longitudinally the time, strengthening core can replace cable conductor and core bearing tension, extruding force and expansionary force etc., and have more flexibility, can adapt to flexibly and resist cable rises because own wt causes on two ends, middle sinking, or the cable a certain position mechanical tension when being subject to two ends and stretching, make the stretching resistance performance of cable higher, stronger.
2, the utility model is looked actual conditions and is added semiconductive shielding layer and high insulation to strengthening core; make cable when work; strengthening core can not affect or destroy the outer field semi-conductive layer of insulated wire cores and high insulation, protects the due effect of its performance, keeps the normal operation of cable.
3, adopt the individual layer wire armoring, and the armouring single line is adopted in addition anti-corrosion protection of independent polymer jacket, the operational reliability of Corrosion Protection and the cable of armour is provided greatly.
4, asphalt-coating on outermost sheath, improved the fireproofing of cable performance greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment:
As shown in Figure 1, a kind of fire resistant flexible high tensile Plastic-sheathed Cable described in the utility model, comprise cable core, its cable core is by some eradication edge cores and three stranded forming of strengthening core 6, gap in cable core is provided with packed layer 5, extrude inner sheath 7, armour 8 outside cable core, outermost layer extrudes oversheath 9, at oversheath 9 outer surface asphalt-coating layers 10.
Insulated wire cores described above is by conductor 1 and is coated on successively conductor 1 outer conductor shield 2, insulating barrier 3, insulation screen 4 and combines.Its conductor 1 adopts and forms copper stranded pressing of single line, and cross section is circular configuration.
Described strengthening core 6 described above is to form by the multiply finer wire is stranded.
Fire resistant flexible high tensile Plastic-sheathed Cable described in the utility model, the construction of cable with use material substantially and general rubber cover identical, but carry out adding three by the stranded strengthening core that forms 6 of multiply finer wire in stranded at cable core, carry out integral body of stranded formation of while with insulated wire cores, and twisting pitch is little more a lot, approximately little 4 to 6 times than original pitch than general Plastic-sheathed Cable twisting pitch.The structure of strengthening core multiply finer wire is looked actual conditions and is added crowded insulating barrier, insulating layer material is consistent with insulating barrier 3 materials of insulated wire cores, for example insulated wire cores is outer is metallic shield, need not squeeze insulating barrier, if the insulated wire cores skin is semiconductive shielding layer or high insulation, to divide don't push semiconductive shielding layer and high insulation.The steel wire of strengthening core is generally zinc-coated wire, also can be ordinary steel wire, the actual operating position of television cable and requirement and decide.
The utility model provides a kind of fire resistant flexible high tensile Plastic-sheathed Cable version and implementation method; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (4)
1. fire resistant flexible high tensile Plastic-sheathed Cable, comprise cable core, it is characterized in that: its cable core is by some eradication edge cores and stranded the forming of three strengthening cores (6), gap in cable core is provided with packed layer (5), extrude inner sheath (7), armour (8) outside cable core, outermost layer extrudes oversheath (9), at oversheath (9) outer surface asphalt-coating layer (10).
2. flexible high tensile Plastic-sheathed Cable according to claim 1 is characterized in that: described insulated wire cores is by conductor (1) and is coated on successively conductor (1) outer conductor shield (2), insulating barrier (3), insulation screen (4) and combines.
3. fire resistant flexible high tensile Plastic-sheathed Cable according to claim 2 is characterized in that: described conductor (1) adopts and forms copper stranded pressing of single line, and cross section is circular configuration.
4. fire resistant flexible high tensile Plastic-sheathed Cable according to claim 1, it is characterized in that: described strengthening core (6) is to form by the multiply finer wire is stranded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695268 CN202976983U (en) | 2012-12-17 | 2012-12-17 | Flexible fireproof rubber sheathed cable with high tensile strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695268 CN202976983U (en) | 2012-12-17 | 2012-12-17 | Flexible fireproof rubber sheathed cable with high tensile strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976983U true CN202976983U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695268 Expired - Fee Related CN202976983U (en) | 2012-12-17 | 2012-12-17 | Flexible fireproof rubber sheathed cable with high tensile strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957609A (en) * | 2016-06-16 | 2016-09-21 | 安徽太平洋电缆股份有限公司 | Medium-voltage hoisting fire-resistant cable and preparation method thereof |
| CN106683785A (en) * | 2016-12-30 | 2017-05-17 | 苏州沃诺斯精密机械有限公司 | Tensile aerial cable structure |
-
2012
- 2012-12-17 CN CN 201220695268 patent/CN202976983U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957609A (en) * | 2016-06-16 | 2016-09-21 | 安徽太平洋电缆股份有限公司 | Medium-voltage hoisting fire-resistant cable and preparation method thereof |
| CN105957609B (en) * | 2016-06-16 | 2017-10-10 | 安徽太平洋电缆股份有限公司 | Middle pressure lifting fire-resisting cable and preparation method thereof |
| CN106683785A (en) * | 2016-12-30 | 2017-05-17 | 苏州沃诺斯精密机械有限公司 | Tensile aerial cable structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201217 |