CN203026253U - Variable-frequency power cable with high flexibility and shielding property - Google Patents
Variable-frequency power cable with high flexibility and shielding property Download PDFInfo
- Publication number
- CN203026253U CN203026253U CN 201220716334 CN201220716334U CN203026253U CN 203026253 U CN203026253 U CN 203026253U CN 201220716334 CN201220716334 CN 201220716334 CN 201220716334 U CN201220716334 U CN 201220716334U CN 203026253 U CN203026253 U CN 203026253U
- Authority
- CN
- China
- Prior art keywords
- insulated wire
- line insulated
- layer
- cable
- power cable
- 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
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a variable-frequency power cable with high flexibility and shielding property. The variable-frequency power cable comprises a main line insulated wire core and a zero line insulated wire core, wherein each of the main line insulated wire core and the zero line insulated wire core is composed of an cross-linked polyethylene insulating layer extruded on a copper conductor; the main line insulated wire core and the zero line insulated wire core are twisted to form cable cores; a filling layer is arranged in a gap between the cable cores; and a belting layer is arranged outside each cable core. The variable-frequency power cable is structurally characterized in that a copper wire braided shielding layer, an isolated sleeve steel belt interlock armoring layer and an outer sheath are sequentially arranged outside the belting layer. The cable disclosed by the utility model adopts steel belt armoring and copper wire shielding, adopts two different shielding materials, plays a certain complementary role on electromagnetic wave shielding, and is preferable in shielding effect. The variable-frequency power cable has strong voltage impact resistance, can bear pulse voltage in high-speed frequent frequency conversion, and can play a good role in protecting a variable-frequency electric appliance.
Description
Technical field
The utility model relates to a kind of power cable, and particularly a kind of high-flexibility shielding frequency-conversion power cable, belong to technical field of electric wires and cables.
Background technology
Recent two decades comes frequency control motor that very large development is arranged at home and abroad, and annual growth slightly surpasses 10%, and the DC Transmission annual growth is 3-4%.Variable-frequency motor has advantages of more, and is as few in the equipment investment expense, and simple in structure, volume is little, and cost is low, and is energy-conservation, and speed adjustable range is large, has the characteristic of permanent power, permanent rotating speed, easy to use, and capacity is large etc.Therefore currently use widely in industrial aspect such as metallurgy, mine, railways, equally also widely apply at household electrical appliance recently.
Frequency-changing cable is mainly the cable that connects power supply and frequency converter, frequency converter and power consumption equipment.The space less that it lays in its running, can produce a large amount of electromagnetic waves, all can produce strong interference to power supply and using electricity system on every side, and this will will have better shielding measure by changes persuing frequency cable.In addition, due to the frequency-changing cable majority be laid in indoor, the limited space that lays, so the pliability of frequency-changing cable is with the difficulty of direct relation cable laying.
The utility model content
For fear of the weak point that prior art exists, the utility model provides a kind of LSOH anti-flaming high-flexibility frequency-conversion power cable.
The utility model realizes that goal of the invention adopts following technical scheme:
A kind of high-flexibility, shielding frequency-conversion power cable comprise main line insulated wire cores and zero line insulated wire cores, and described main line insulated wire cores and zero line insulated wire cores extrude crosslinked polyetylene insulated layer outward by copper conductor and form; The stranded formation cable core of described main line insulated wire cores and zero line insulated wire cores, the gap of cable core is provided with the polypropylene fibre packed layer, described cable core is provided with the polyester belt belting layer outward, its design feature is, described belting layer is provided with the proof copper-wire braided screen outward successively, separation sleeve steel band lock armo layer and oversheath.
The utility model design feature also is:
Described steel band lock armo layer thickness is 0.4-0.6mm.
Described separation sleeve and oversheath all adopt low smoke, zero halogen polyolefin material.
The utility model beneficial effect is embodied in:
The utility model cable adopts steel-tape armouring and brass wire shielding, has adopted two kinds of different shielding materials, plays certain complementation on electromagnetic wave shielding, and shield effectiveness will be better, and the steel band lock armo also plays the total shielding action of additivity simultaneously.
The utlity model has stronger proof voltage impact, the pulse voltage in the time of standing at a high speed frequent frequency conversion plays a good protection to frequency conversion electrical equipment.
The utility model cable armouring adopts the thick steel band lock armo of 0.4-0.6mm, has improved the cable bend performance, pliability is good, very easily lays.
The utility model separation sleeve and oversheath all adopt low smoke, zero halogen polyolefin material, can improve the anti-flammability of cable, can effectively reduce simultaneously because fire causes cable fire to produce toxic gas volume and exhaust gas volumn.
Description of drawings
Fig. 1 is the utility model construction of cable schematic diagram.
Number in the figure: 1 copper conductor, 2 crosslinked polyetylene insulated layers, 3 polypropylene fibre packed layers, 4 polyester belt belting layers, 5 proof copper-wire braided screens, 6 separation sleeves, 7 steel band lock armo layers, 8 oversheaths.
Technical solutions of the utility model are described further by embodiment below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 1, the utility model cable is comprised of copper conductor 1, crosslinked polyetylene insulated layer 2, polypropylene fibre packed layer 3, polyester belt belting layer 4, proof copper-wire braided screen 5, low smoke, zero halogen polyolefin separation sleeve 6, steel band lock armo layer 7, oversheath 8.
In concrete enforcement, adopt copper conductor 1, crosslinked polyetylene insulated layer 2 is extruded on copper conductor 1, and adopts vapor crosslinking; Then six roots of sensation insulated wire cores (comprising three main line insulated wire cores and three zero line insulated wire cores) twists together with less pitch, carry out simultaneously polypropylene fibre filling, polyester belt band, then carry out the proof copper-wire braided shielding, and count is greater than 85%, proof copper-wire braided screen 5 is outer to be extruded successively low smoke, zero halogen polyolefin separation sleeve 6 and adopts the thick steel band lock armo of 0.4-0.6mm, extrudes at last low smoke, zero halogen polyolefin oversheath 8.
Claims (3)
1. a high-flexibility, shielding frequency-conversion power cable, comprise main line insulated wire cores and zero line insulated wire cores, and described main line insulated wire cores and zero line insulated wire cores form by the outer crosslinked polyetylene insulated layer (2) that extrudes of copper conductor (1); The stranded formation cable core of described main line insulated wire cores and zero line insulated wire cores, the gap of cable core is provided with polypropylene fibre packed layer (3), described cable core is provided with polyester belt belting layer (4) outward, it is characterized in that outer proof copper-wire braided screen (5), separation sleeve (6) steel band lock armo layer (7) and the oversheath (8) of being provided with successively of described belting layer (4).
2. a kind of high-flexibility according to claim 1, shielding frequency-conversion power cable, is characterized in that, described steel band lock armo layer (7) thickness is 0.4-0.6mm.
3. a kind of high-flexibility according to claim 1, shielding frequency-conversion power cable, is characterized in that, described separation sleeve (6) and oversheath (8) all adopt low smoke, zero halogen polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716334 CN203026253U (en) | 2012-12-21 | 2012-12-21 | Variable-frequency power cable with high flexibility and shielding property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716334 CN203026253U (en) | 2012-12-21 | 2012-12-21 | Variable-frequency power cable with high flexibility and shielding property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026253U true CN203026253U (en) | 2013-06-26 |
Family
ID=48650219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220716334 Expired - Fee Related CN203026253U (en) | 2012-12-21 | 2012-12-21 | Variable-frequency power cable with high flexibility and shielding property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878019A (en) * | 2018-07-02 | 2018-11-23 | 安徽菲扬新材料有限公司 | A kind of cable of the high-flexibility for photovoltaic system |
-
2012
- 2012-12-21 CN CN 201220716334 patent/CN203026253U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878019A (en) * | 2018-07-02 | 2018-11-23 | 安徽菲扬新材料有限公司 | A kind of cable of the high-flexibility for photovoltaic system |
| CN108878019B (en) * | 2018-07-02 | 2019-10-11 | 安徽菲扬新材料有限公司 | A kind of cable of the high-flexibility for photovoltaic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201210417Y (en) | Safe flexible frequency variable cable | |
| CN202632868U (en) | Medium-voltage power cable with uniformly-packaged armoring metal wire shielding layer | |
| CN203706693U (en) | Rated 450V or 750V fluoroplastic insulation and sheath high temperature resisting control cable | |
| CN202662384U (en) | Double-layer shielded computer cable | |
| CN203118633U (en) | Fire-resistant aluminum alloy variable frequency cable | |
| CN203026253U (en) | Variable-frequency power cable with high flexibility and shielding property | |
| CN204242629U (en) | There is the converter cable of anti-electromagnetic interference function | |
| CN206312632U (en) | Communication composite power cable | |
| CN203026242U (en) | Variable frequency cable for frequency converter | |
| CN104795134A (en) | Industrial anti-interference insulated cable | |
| CN203055536U (en) | A frequency conversion power cable | |
| CN204229881U (en) | A kind of Novel variable frequency cable | |
| CN203607151U (en) | Aluminum-alloy-conductor variable frequency cable | |
| CN203503382U (en) | Cable for electrical equipment | |
| CN201489873U (en) | Frequency converter soft cable suitable for 1,000V and lower than 1,000V for ships and warships | |
| CN203746487U (en) | Cable used for variable frequency motor | |
| CN202258450U (en) | Highly shielded frequency conversion cable | |
| CN204315260U (en) | A kind of shielding dual-purpose type frequency-changing cable | |
| CN202563966U (en) | Low voltage cable special for frequency converter | |
| CN203588748U (en) | Concentric conductor type dual-shielding variable-frequency cable | |
| CN204577148U (en) | High connductivity armouring foamed cable | |
| CN211376237U (en) | Bearing type overhead insulated cable for power transmission and communication | |
| CN203276945U (en) | Crosslinked polyethylene insulated copper wire copper strip shielding frequency converter cable | |
| CN201956118U (en) | Power cable for frequency converter | |
| CN203085271U (en) | Polyvinyl chloride insulation power cable |
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: 20130626 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |