CN201498246U - Shielded power wire - Google Patents
Shielded power wire Download PDFInfo
- Publication number
- CN201498246U CN201498246U CN200920310691XU CN200920310691U CN201498246U CN 201498246 U CN201498246 U CN 201498246U CN 200920310691X U CN200920310691X U CN 200920310691XU CN 200920310691 U CN200920310691 U CN 200920310691U CN 201498246 U CN201498246 U CN 201498246U
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- Prior art keywords
- conductor
- utility
- model
- stranded
- cables
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- Expired - Fee Related
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Abstract
The utility model relates to a shielded power wire comprising a conductor, an insulating layer, a wrapping strip layer, a shielding layer and a sheath. The utility model is characterized in that the conductor is an integral stranded conductor of copper wire beams, which is formed by pressing multiple strands of stranded wires. The utility model has the advantages that the outer radius of cables is reduced by adopting the conductor pressing structure, which saves materials and facilitates laying and installation, and good resistance value is ensured. Cables adopting flame retardant and cold-resistant environment protection materials can run at the minimum temperature of 40 DEG.C below zero, and can be installed at the minimum temperature of 25 DEG.C below zero. The power wire is suitable for the work temperature range of cables used in outdoor environments.
Description
Technical field
The utility model belongs to cable, relates in particular to a kind of shielded power supply line.
Background technology
Common its structure of shielded power supply line cable is made up of conductor, insulating barrier, screen and sheath, its shortcoming conductor is to be made of the loose conductor bundle of copper wire bundle, cause the electric conductivity of conductor to reduce, and the overall dimensions of cable is strengthened, cause insulation, the corresponding increase of sheath material has increased the production cost of cable; And its flame retardant effect is relatively poor.Especially the incompatibility communication power supply requires the communication equipment of shielding to be connected use as electric power transfer with distributing.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provides a kind of communication power supply that adapts to be connected the shielded power supply line that uses as electric power transfer with the communication equipment that requires shielding that distributes.
The utility model for achieving the above object, by the following technical solutions: a kind of shielded power supply line, comprise conductor, insulating barrier, wrapped belt, screen and sheath, it is characterized in that: described conductor compresses the global copper tow stranded conductor that constitutes by some strands of bundle twisted wires.
The bundle stranded conductor that described global copper tow stranded conductor is the bundle stranded conductor of semicircle compressing structure by two or is fan-shaped compressing structure more than three strands constitutes.
The utility model beneficial effect: adopt compressing structure to reduce the external diameter of cable, save material and also be convenient to laying installation, and guarantee that resistance value is good.Adopt the flaming retarding cold resistant environment-friendly materials, the cable minimum operating temperature be-40 ℃, can minimum be that-25 ℃ ambient temperature is installed, satisfy the operating temperature range that cable vault's external environment moves use.
Description of drawings
Fig. 1 is the structural representation of the utility model two core cable conductor.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
See accompanying drawing for details, a kind of shielded power supply line comprises conductor 1, insulating barrier 2, wrapped belt 3, screen 4 and sheath 5, and described conductor compresses the global copper tow stranded conductor that constitutes by some strands of bundle twisted wires.The conductor shape of two core cable is by two bundle stranded conductors that are semicircle 1-1 compressing structure, cross-sectional area of conductor 2 * 6mm
2, conductor structure 2 * 84 * 0.3 adopts conductor; Insulating exruded employing flaming retarding cold resistant environment-friendly materials; Two core insulation core strandings are stranded; Type of weave, count 〉=80% are adopted in shielding; Extrude flaming retarding cold resistant environmental protection sheath.The finished product external diameter of product cable is 11.0-11.3mm, and the finished product external diameter of common cable is 16mm.Insulation, the corresponding minimizing of sheath material.External diameter reduces, and cost reduces.The bundle stranded conductor that the conductor shape of three cores or above cable is fan-shaped compressing structure constitutes.Conductor adopts global copper tow stranded conductor structure, on the basis of the softness that has guaranteed cable, the activity coefficient of core is increased, and the area that lead takies reduces, thereby can save insulation and sheath material; And adopt the conductor compressing structure, can make to connect closelyr between the conductor, avoided because conductor is loosening the problem that the heating resistor that loose contact causes is big thereby increase the conductivity that contact area between the monofilament strengthens conductor.Adopt bundle twisted wire compressing structure,, produce and just be difficult to control if structural design is bad, meticulous because of the conductor monofilament, press to such an extent that sharp edge appears in tension conductor easily, monofilament can be flattened what is more and break; The loose conductor of mistake of pressing is difficult to moulding and does not reach the effect that die mould reduces external diameter, and the bad adjustment of mould when insulating exruded, and is eccentric easily, and rounding not during stranding also can be burst insulation because of the distortion of conductor.My company, adjusts the activity coefficient that is fit to and trial-produces cable sample successfully in the condition that guarantees conductor resistance, insulating exruded and stranding moulding rounding through repeatedly experiment
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. a shielded power supply line comprises conductor, insulating barrier, wrapped belt, screen and sheath, it is characterized in that: described conductor compresses the global copper tow stranded conductor that constitutes by some strands of bundle twisted wires.
2. shielded power supply line according to claim 1 is characterized in that: the bundle stranded conductor that described global copper tow stranded conductor is the bundle stranded conductor of semicircle compressing structure by two or is fan-shaped compressing structure more than three strands constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920310691XU CN201498246U (en) | 2009-09-17 | 2009-09-17 | Shielded power wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920310691XU CN201498246U (en) | 2009-09-17 | 2009-09-17 | Shielded power wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498246U true CN201498246U (en) | 2010-06-02 |
Family
ID=42441448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920310691XU Expired - Fee Related CN201498246U (en) | 2009-09-17 | 2009-09-17 | Shielded power wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000277A (en) * | 2012-12-13 | 2013-03-27 | 昆山信昌电线电缆有限公司 | Low smoke zero halogen (LSZH) flame-retardant high-elasticity cable |
| CN105448413A (en) * | 2015-12-18 | 2016-03-30 | 江苏上上电缆集团有限公司 | Semicircular conductor power cable and manufacture method thereof |
-
2009
- 2009-09-17 CN CN200920310691XU patent/CN201498246U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000277A (en) * | 2012-12-13 | 2013-03-27 | 昆山信昌电线电缆有限公司 | Low smoke zero halogen (LSZH) flame-retardant high-elasticity cable |
| CN103000277B (en) * | 2012-12-13 | 2016-03-09 | 昆山信昌电线电缆有限公司 | Low-smoke non-halogen flame-retardant high resiliency cable |
| CN105448413A (en) * | 2015-12-18 | 2016-03-30 | 江苏上上电缆集团有限公司 | Semicircular conductor power cable and manufacture method thereof |
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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: 20100602 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |