CN202615912U - Variable frequency cable used for 690V vessel electric propulsion - Google Patents
Variable frequency cable used for 690V vessel electric propulsion Download PDFInfo
- Publication number
- CN202615912U CN202615912U CN 201220268762 CN201220268762U CN202615912U CN 202615912 U CN202615912 U CN 202615912U CN 201220268762 CN201220268762 CN 201220268762 CN 201220268762 U CN201220268762 U CN 201220268762U CN 202615912 U CN202615912 U CN 202615912U
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- tape
- cable
- core
- electric propulsion
- variable frequency
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Abstract
The utility model provides a variable frequency cable used for 690V vessel electric propulsion. The variable frequency cable comprises a cable core and a protective layer, wherein the cable core is round and formed by twisting three main insulating cores and three neutral insulating cores, and the main insulating cores and neutral insulating cores are mutually crossly arrayed and formed into a round cable core through filling. The main technical characteristics of the variable frequency cable lies in that each main insulating core consists of a main core conductor and an irradiation crosslinking polyethylene insulating layer, a semiconduction tape is wound outside the cable core, and the outer side of the semiconduction tape is provided with a warping tape consisting of a layer of flame retardant low-smoke halogen-free tape and two layers of polyester tapes; a shielding layer braided by tinned copper wires is arranged outside the polyester tapes of the warping tape, and a copper tape warping tape is arranged outside the shielding layer braided by the tinned copper wires; and a low-smoke halogen-free flame retardant over sheath is arranged outside the copper tape warping tape. The variable frequency cable has the advantages of good magnetic field shielding effect and low radiation and is beneficial to popularization and application.
Description
Technical field
The utility model relates to a kind of 690V naval vessel electric propulsion and uses frequency-changing cable.
Background technology
The performance of naval vessel electric propulsion system cable and wire laying mode are very important problems in the electric propulsion system; Mainly, make the Electro Magnetic Compatibility and the fail safe of each equipment of electric propulsion system satisfy relevant technologies index requests such as relevant criterion, standard through selecting relevant cables and reasonable line arrangement for use.Because radiated interference problem more complicated generally is to solve the radiated interference problem through improving shielding construction or increasing shield facility.Control appliance in the naval vessel electric propulsion system is numerous, arranges and disperses, and their earth lead forms a ground network.How correct ground connection can be eliminated a lot of interference, is one of important means that improves electric pushing system interference, has following problem in the prior art:
1, high frequency can make the dielectric strength damaged of insulating material, is prone to aging; Should select for use suitable material to make insulating sleeve; Medium between conductor and the shielding conductor is a quality material, to reduce electric capacity; Must unifiedly consider the material of sectional area size, the construction of cable and the insulating sleeve of conductor.Since the leakage current of electric capacity, the necessary size of considering the shielding conductor sectional area.The construction of cable should be the shielding construction design, with limit electromagnetic radiation.
2, voltage climbing speed high requirement insulating material should have corresponding insulation intensity, selects corresponding material as insulating sleeve.
3, by the transmission voltage on the frequency control propulsion motor feeder cable, the inner wall thickness of preferred corresponding insulation intensity, insulating material and insulating sleeve.
4, because voltage harmonic is big to the influence of propulsion motor feeder cable, require insulating sleeve that enough thickness will be arranged.
Summary of the invention
The purpose of the utility model is intended to overcome the shortcoming that exists in the above-mentioned prior art, and the effective of a kind of armoured magnetic field is provided, and the little 690V naval vessel electric propulsion of radiation is used frequency-changing cable.
The utility model is realized through following technical scheme:
A kind of 690V naval vessel electric propulsion is used frequency-changing cable; Comprise cable core and overcoat; Wherein said cable core is three main insulation cores 8 and three circles that neutral insulated wire cores 9 is twisted into, main insulation core and the mutual cross arrangement of neutral insulated wire cores, and through filling the circular cable core of 3 formation; It is characterized in that described main insulation core is made up of master core conductor 1 and IXPE insulating barrier 2; The cable core outside also is surrounded with a semi-conductive tape; The semi-conductive tape outside is provided with the twining package tape of being made up of one deck flame-retardant low-smoke halogen-free band and two layers polyester band 4; Outside the polyester belt of twining package tape, be provided with the screen that tinned copper wire braiding 5 forms, the screen of tinned copper wire braiding is provided with copper strips twining package tape 6 outward, and copper strips twining package tape outside is provided with low-smoke non-halogen flame-retardant oversheath 7.
Described master core conductor is second kind of twisted copper conductors.
The material of described semi-conductive tape is the semiconductive nylon tape.
Described packing material is the inner low smoke and zero halogen packing material of processing with glass cord.
The utility model compared with prior art has following beneficial effect:
(1) insulating layer material of the utility model adopts the IXPE Insulation Material, and insulating barrier is to use extrusion apparatus to produce through the mode of extruding, 125 ℃ of its temperature resistant grades, insulation electrical good insulation preformance.
(2) the semi-conductive tape material of the utility model is the semiconductive nylon tape, and is wrapped in the insulation outside, plays the abirritation between insulation and the metal screen layer.Burr lunges insulation internal sabotage cable when having avoided also simultaneously that copper strips is wrapped in the back.
(3) copper strips of the utility model is wrapped outside semi-conductive layer, can play shielding internal electromagnetic field action; The screen that tinned copper wire braiding forms plays shielding external electromagnetic field action, and when cable breaks down, and can introduce short circuit current undergroundly, plays the safeguard protection effect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure:, master core conductor-1, IXPE insulating barrier-2, fill-3, screen-5, twining package tape-6, oversheath-7, main insulation core-8, the neutral insulated wire cores-9 of twining package tape-4, tinned copper wire braiding.
Embodiment and accompanying drawings through the utility model given below can further be well understood to the utility model.But they are not the qualifications to the utility model.
Embodiment
As shown in Figure 1; A kind of 690V naval vessel electric propulsion is used frequency-changing cable; Comprise cable core and overcoat, wherein cable core is three main insulation cores 8 and three circles that neutral insulated wire cores 9 is twisted into, main insulation core and the mutual cross arrangement of neutral insulated wire cores; And through filling the circular cable core of 3 formation, packing material is filled material for the inner low smoke and zero halogen of processing with glass cord; The main insulation core is made up of master core conductor 1 and IXPE insulating barrier 2, and the master core conductor is second kind of twisted copper conductors, and the cable core outside also is surrounded with a semi-conductive tape; The material of semi-conductive tape is the semiconductive nylon tape; The semi-conductive tape outside is provided with the twining package tape of being made up of one deck flame-retardant low-smoke halogen-free band and two layers polyester band 4, outside the polyester belt of twining package tape, is provided with the screen that tinned copper wire braiding 5 forms, and can play the effect of shielding external magnetic field; Form with the tinned copper wire braiding; When cable breaks down, can introduce short circuit current undergroundly, play the safeguard protection effect; The screen of tinned copper wire braiding is provided with copper strips twining package tape 6 outward, and copper strips twining package tape outside is provided with low-smoke non-halogen flame-retardant oversheath 7, can play the effect of protection inside cable core.
Claims (4)
1. a 690V naval vessel electric propulsion is used frequency-changing cable; Comprise cable core and overcoat; Wherein said cable core is the circle that three main insulation cores (8) and three neutral insulated wire cores (9) are twisted into; Main insulation core and the mutual cross arrangement of neutral insulated wire cores, and form circular cable core through filling (3); It is characterized in that: described main insulation core is made up of master core conductor (1) and IXPE insulating barrier (2); The cable core outside also is surrounded with a semi-conductive tape; The semi-conductive tape outside is provided with the twining package tape of being made up of one deck flame-retardant low-smoke halogen-free band and two layers polyester band (4); Outside the polyester belt of twining package tape, be provided with the screen that tinned copper wire braiding (5) forms; The screen of tinned copper wire braiding is provided with copper strips twining package tape (6) outward, and copper strips twining package tape outside is provided with low-smoke non-halogen flame-retardant oversheath (7).
2. 690V according to claim 1 naval vessel electric propulsion is used frequency-changing cable, it is characterized in that: described master core conductor is second kind of twisted copper conductors.
3. 690V according to claim 1 naval vessel electric propulsion is used frequency-changing cable, it is characterized in that: the material of described semi-conductive tape is the semiconductive nylon tape.
4. 690V according to claim 1 naval vessel electric propulsion is used frequency-changing cable, it is characterized in that: described packing material is the inner low smoke and zero halogen packing material of processing with glass cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268762 CN202615912U (en) | 2012-06-04 | 2012-06-04 | Variable frequency cable used for 690V vessel electric propulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268762 CN202615912U (en) | 2012-06-04 | 2012-06-04 | Variable frequency cable used for 690V vessel electric propulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615912U true CN202615912U (en) | 2012-12-19 |
Family
ID=47349588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268762 Expired - Fee Related CN202615912U (en) | 2012-06-04 | 2012-06-04 | Variable frequency cable used for 690V vessel electric propulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615912U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616819A (en) * | 2015-01-31 | 2015-05-13 | 安徽红旗电缆集团有限公司 | Lightning protection circuit |
| CN104835560A (en) * | 2014-02-11 | 2015-08-12 | 安徽国华电缆集团有限公司 | Flat aluminum conductor power cable |
| CN106531312A (en) * | 2016-12-26 | 2017-03-22 | 常州八益电缆股份有限公司 | Nuclear power plant cable and production method |
| CN112509766A (en) * | 2020-11-23 | 2021-03-16 | 安徽鸿海电缆有限公司 | High-temperature-resistant silicon rubber insulation and sheath cable |
-
2012
- 2012-06-04 CN CN 201220268762 patent/CN202615912U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835560A (en) * | 2014-02-11 | 2015-08-12 | 安徽国华电缆集团有限公司 | Flat aluminum conductor power cable |
| CN104616819A (en) * | 2015-01-31 | 2015-05-13 | 安徽红旗电缆集团有限公司 | Lightning protection circuit |
| CN106531312A (en) * | 2016-12-26 | 2017-03-22 | 常州八益电缆股份有限公司 | Nuclear power plant cable and production method |
| CN112509766A (en) * | 2020-11-23 | 2021-03-16 | 安徽鸿海电缆有限公司 | High-temperature-resistant silicon rubber insulation and sheath cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20140604 |