CN201134278Y - Frequency converter cable - Google Patents
Frequency converter cable Download PDFInfo
- Publication number
- CN201134278Y CN201134278Y CNU2007200776041U CN200720077604U CN201134278Y CN 201134278 Y CN201134278 Y CN 201134278Y CN U2007200776041 U CNU2007200776041 U CN U2007200776041U CN 200720077604 U CN200720077604 U CN 200720077604U CN 201134278 Y CN201134278 Y CN 201134278Y
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- China
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- layer
- cable
- restrictive coating
- core
- ground connection
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- Expired - Lifetime
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Abstract
The utility model relates to an inverter cable, which is characterized in that three main wire cores and three grounding wire cores are arranged in a restrictive coating, the three main wire cores and the three grounding wire cores are symmetrically arranged, a water repellent layer and a waterproof layer are arranged in the restrictive coating, and a metal shielding layer is arranged between the water repellent layer and the waterproof layer. When using, the inverter cable of the utility model is suitable to be used as a power supply cable or electrical connection for a frequency control system whose alternating current rated voltage is 0.6/lkv and below, because using a geometric symmetric structure, the stability of the cable is high, the spherical degree is excellent, the quality of longitudinal covering shielding process is beneficial to be guaranteed, the electrical performance and the mechanical property are improved, the shielding property and the moisture resistance are excellent, the electromagnetic interference is effectively eliminated, the noise of a variable-frequency motor is reduced, and the steady operation of a system is guaranteed.
Description
Technical field:
The utility model relates to the technical field of cable, specifically a kind of moistureproof converter cable.
Background technology:
Present homemade shielded type cable adopts the structure of " 3+1 " core or 4 cores usually, and the stability of the construction of cable is not high, and electric property and mechanical performance can't effectively improve, and adopts the overlapping wrapped shielding process of copper strips, and shielding, the moisture resistance of cable are relatively poor.
Summary of the invention:
The purpose of this utility model is to provide a kind of improved converter cable, and it can overcome cable shield in the prior art, moisture resistance is relatively poor, the some shortcomings that stability is not high.
To achieve these goals, the technical solution of the utility model is: a kind of converter cable, it mainly comprises restrictive coating and is located at restrictive coating interior master core and ground connection core, it is characterized in that: be provided with 3 master cores and 3 ground connection cores in the restrictive coating, 3 master cores and 3 ground connection cores are and are symmetrical arranged, be provided with water blocking layer and watertight composition in the restrictive coating, be provided with metal screen layer between watertight composition and the water blocking layer.
Converter cable of the present utility model is applicable to that ac rated voltage 0.6/1kv and following frequency-changing control system make service cable or be electrically connected during use, owing to adopt symmetrical structure how much, cable stability is high, roundness is good, help the quality assurance of vertical bag shielding process, electric property and mechanical performance all are improved, and have good shielding, moisture resistance, and effectively eliminate electromagnetic interference, reduce the variable-frequency motor noise, guarantee system stable operation.
Description of drawings:
Fig. 1 is the structural representation of the utility model one embodiment
Embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
The utility model mainly comprises restrictive coating 10 and is located at restrictive coating interior master core 3 and ground connection core 1, it is characterized in that: be provided with 3 master cores and 3 ground connection cores in the restrictive coating, 3 master cores and 3 ground connection cores are and are symmetrical arranged, be provided with water blocking layer 7 and watertight composition 9 in the restrictive coating, be provided with metal screen layer 8 between watertight composition and the water blocking layer.Master core is provided with master core insulating barrier 4 outward, and ground connection core peripheral hardware has earth connection core insulation layer 2.Be provided with lapping layer 6 in the water blocking layer, be provided with filler 5 between lapping layer and master core, the ground connection core, filler adopts mineral wool rope.Watertight composition adopts the two-sided plastic-aluminum band that is coated with to make, and the thickness of watertight composition is 0.1-0.2mm, and water blocking layer is made for the PVC material, and metal screen layer adopts copper wire to make.
In force, cable conductor copper cash, dc resistivity P
20=0.071241 Ω mm
2/ m, cable shield is taken the vertical bag of super thick two-sided plastic-coated aluminum composite belt embossing (plastic-aluminum combined tape thickness 〉=0.60mm), form full-closed structure, shielding properties is further improved and improves, and has an excellent waterproof retaining tide effect, make the dielectric strength of cable keep stable, cable is safe and reliable to operation, increases the service life.Owing to adopt the construction of cable of how much holohedral symmetry types of " 3+3 " core; in the three-phase power supply-distribution system; parameters such as the inductance of cable operation, electric capacity all are in the symmetrical balance state; Electric Field Distribution is even; impedance reduces; loss reduces in the cable, and power supply quality improves: have the protection cable not puncture because of strong lightning induced voltage to a certain extent.Through the vertical water blocking test of waterproof sheath (95 ℃-100 ℃ circulate 10 times), moisture is no more than 1500mm to the two ends penetration length.
Claims (4)
1, a kind of converter cable, it mainly comprises restrictive coating and is located at restrictive coating interior master core and ground connection core, it is characterized in that: be provided with 3 master cores and 3 ground connection cores in the restrictive coating, 3 master cores and 3 ground connection cores are and are symmetrical arranged, be provided with water blocking layer and watertight composition in the restrictive coating, be provided with metal screen layer between watertight composition and the water blocking layer.
2, a kind of converter cable according to claim 1, it is characterized in that: master core is provided with the master core insulating barrier outward, and ground connection core peripheral hardware has earth connection core insulation layer.
3, a kind of converter cable according to claim 1 is characterized in that: be provided with lapping layer in the water blocking layer, be provided with filler between lapping layer and master core, the ground connection core, filler adopts mineral wool rope.
4, a kind of converter cable according to claim 1 is characterized in that: watertight composition adopts the two-sided aluminium-plastic tape that is coated with to make, and the thickness of watertight composition is 0.1-0.2mm, and water blocking layer is that PVC or silastic material are made, and metal screen layer adopts copper wire to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776041U CN201134278Y (en) | 2007-12-28 | 2007-12-28 | Frequency converter cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776041U CN201134278Y (en) | 2007-12-28 | 2007-12-28 | Frequency converter cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134278Y true CN201134278Y (en) | 2008-10-15 |
Family
ID=40062546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200776041U Expired - Lifetime CN201134278Y (en) | 2007-12-28 | 2007-12-28 | Frequency converter cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134278Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923916A (en) * | 2010-05-10 | 2010-12-22 | 兴乐集团宁夏电缆有限公司 | Variable frequency power generator cable with control wire core |
| CN103887008A (en) * | 2014-03-13 | 2014-06-25 | 无锡市曙光电缆有限公司 | Environment-friendly type rat and ant prevention railway signal cable |
| CN104157347A (en) * | 2014-08-22 | 2014-11-19 | 江苏天地龙电缆有限公司 | Ship waterproof magnetic measuring cable |
| CN104282385A (en) * | 2014-08-28 | 2015-01-14 | 四川顶锐液压设备制造有限公司 | Hydraulic system power supply cable |
| CN104299713A (en) * | 2014-08-28 | 2015-01-21 | 四川顶锐液压设备制造有限公司 | Hydraulic pump station power supply cable with graphite-epoxy resin combined conductive coating |
-
2007
- 2007-12-28 CN CNU2007200776041U patent/CN201134278Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923916A (en) * | 2010-05-10 | 2010-12-22 | 兴乐集团宁夏电缆有限公司 | Variable frequency power generator cable with control wire core |
| CN103887008A (en) * | 2014-03-13 | 2014-06-25 | 无锡市曙光电缆有限公司 | Environment-friendly type rat and ant prevention railway signal cable |
| CN104157347A (en) * | 2014-08-22 | 2014-11-19 | 江苏天地龙电缆有限公司 | Ship waterproof magnetic measuring cable |
| CN104282385A (en) * | 2014-08-28 | 2015-01-14 | 四川顶锐液压设备制造有限公司 | Hydraulic system power supply cable |
| CN104299713A (en) * | 2014-08-28 | 2015-01-21 | 四川顶锐液压设备制造有限公司 | Hydraulic pump station power supply cable with graphite-epoxy resin combined conductive coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |