CN202917239U - Cold-resistant type frequency conversion cable - Google Patents
Cold-resistant type frequency conversion cable Download PDFInfo
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- CN202917239U CN202917239U CN 201220532637 CN201220532637U CN202917239U CN 202917239 U CN202917239 U CN 202917239U CN 201220532637 CN201220532637 CN 201220532637 CN 201220532637 U CN201220532637 U CN 201220532637U CN 202917239 U CN202917239 U CN 202917239U
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Abstract
The utility model discloses a cold-resistant type frequency conversion cable. Three symmetrical main insulation wire cores and three symmetrical auxiliary insulation wire cores are stranded to form a cable core; each main insulation wire core comprises a main conductor, an isolation layer, and an insulation layer from inside to outside; each auxiliary insulation wire core comprises an auxiliary conductor, an isolation layer, and an insulation layer form inside to outside; a filler is arranged between the main insulation wire cores and the auxiliary insulation wire cores; and a wrapping layer, an inner sheath, a shielding layer and an outer sheath are sequentially arranged outside the cable core. According to the cold-resistant type frequency conversion cable, the electrical properties of the frequency conversion cable is still maintained, and cold-resistant properties, flexible properties, weather-resistant properties, aging-resistant properties and chemical-resistant properties of the cable are also improved; the cable can be applied to power cable lines for frequency conversion motors in high altitude and cold regions with the temperature of no lower than 60 DEG C below zero, the working temperature can be increased to 125 DEG C, and the current carrying capacity of the cable is further improved.
Description
Technical field
The utility model relates to service cable, specifically is a kind of cold-resistant type frequency-changing cable.
Background technology
Continuous progress along with science and technology, the continuous expansion of human range of activity, to improving constantly of energy demand, high height above sea level, high and cold, severe cold area are constantly obtained new progress as the economic development zone, the wind-power electricity generation project of China had entered the high and cold areas such as the high altitude localities in the Yunnan-Guizhou Plateau and Heihe, northeast in recent years, and the projects such as the Russian Siberia oil field that China PetroChina Company Limited. contracts are at severe cold area.For also corresponding raisings of requirement such as the frequency-changing cables that uses at cold district, according to customer requirements: cable should be able to keep normally using and moving at subzero-55 ℃～-60 ℃, and common frequency-changing cable resistance to low temperature can not satisfy the operation technique requirement of similar applications at most about-25 ℃.
The utility model content
The utility model purpose provides a kind of cold-resistant type frequency-changing cable that possesses the softness of excellent cold tolerance, and this cable also has excellent mechanical performance, remarkable weather resisteant (ultraviolet ray, ozone, daylight, rainwater) ageing-resistant and oil resistance, can adapt to multiple different operational environment.
The technical solution of the utility model is: cold-resistant type frequency-changing cable, its structure is that three main insulation cores and the three supplementary insulation cores by symmetric arrays are twisted into cable core, described main insulation core is comprised of leading body, separator, insulating barrier from the inside to surface, the supplementary insulation core is comprised of auxiliary conductor, separator, insulating barrier from the inside to surface, between main insulation core, the supplementary insulation core filler is arranged, described cable core has lapping layer, inner sheath, screen and oversheath outward successively.
Further scheme is: described leading body and auxiliary conductor are the bundle of the multiply annealed copper wire structure that closes and tangle again; Described separator forms by nonwoven fabrics is wrapped; Described insulating barrier is the High tear resistance silicon rubber insulating material; Described filler is the high-low temperature resistant soft material; Described lapping layer forms by the reinforced non-woven fabrics band is wrapped; Described inner sheath is for extruding thermoplastic elastomer (TPE); Described screen is tincopper fuse wire braided armor; Described oversheath is for extruding styrene analog thermoplastic elastomer.
Specific features of the present utility model is:
(1) a kind of cold-resistant type frequency-changing cable, formed by three leading bodies and three auxiliary conductors, wrapped separator and insulating barrier are arranged outside leading body or auxiliary conductor, filler is arranged between insulated wire cores during the insulated wire cores stranding, become cable core that lapping layer, inner sheath, screen and oversheath are arranged outward.Conductor adopts annealed copper wire, and its performance meets the requirement of the 5th kind or the 6th kind flexible conductor of GB/T3956-2008,
(2) the High tear resistance silicon rubber rubber insulation is adopted in insulation, and the insulation resistance of High tear resistance silicon rubber insulating material is higher, and dielectric loss is less, and tearing toughness is high, and has excellent electrical property, and to allow for a long time serviceability temperature be-60 ℃～+ 180 ℃.
(3) main insulation core and supplementary insulation core are answered twisted synthesizing cable (structure is seen accompanying drawing), and symmetric arrays, and space between core adopts the high-low temperature resistant Material Filling full, and cable core adopts outward that reinforced light non-woven fabrics is wrapped to be tightened again.
(4) cable extrudes one deck inner sheath to cable before shielding, and inner sheath employing cold tolerance is-65 ℃ TPE thermoplastic elastic material.
(5) screen adopts zinc-plated soft copper silk braid shielded, has excellent shielding properties.
(6) sheath material adopts the styrene analog thermoplastic elastomer material, has remarkable weather resisteant (ultraviolet ray, ozone, daylight, rainwater) ageing-resistant, resistance to water, chemicals-resistant (acid, alkali, alcohol, ether) and electrical property, still have rubber property in the time of-50 ℃, maximum operating temperature can reach 125 ℃.
The beneficial effects of the utility model are:
By structural design, Material selection and the technological design to this cold-resistant type frequency-changing cable, except every electrical property of cable has still kept the performance requirement of original frequency-changing cable, the one, the conductor wire core of this cable adopts the bundle of the multiply fine copper wire structure that closes and tangle again, has guaranteed the good bending property of cable; The 2nd, adopt High tear resistance silicon rubber to make insulating material, utilize its excellent tearing toughness and resistance to low temperature, cable keeps its softness and electrical property constant under-60 ℃ environmental condition; The 3rd, between the insulated wire cores of cable, adopt low temperature material to fill rounding, wrapped reinforced light non-woven fabrics on cable core is to keep stability and the rounding property of insulated wire cores structure; The 4th, the TPE thermoplastic elastic material that extrudes one deck-65 ℃ in lapping layer outside is made inner sheath, and screen produces damage to insulation when avoiding later process to produce or during mounting and installation; Adopt the tinned copper wire braiding to make screen between inner sheath and oversheath, this screen has good shielding properties, to prevent the phase mutual interference of external electromagnetic field in the cable; Sheath material outside screen adopts styrene analog thermoplastic elastomer, its resistant of high or low temperature is remarkable, in the time of-50 ℃, still has rubber property, its brittle temperature is-60 ℃, maximum operating temperature can reach 125 ℃, the mechanical performance of this sheath is not only high a lot of than common rubber, but also has the characteristic of low temperature resistant, weather resisteant and chemicals-resistant, has prolonged the useful life of cable under cryogenic conditions.Three master cores and three auxiliary cores are arranged in this cable, satisfy the instructions for use (three auxiliary cores are jointly as earth connection) of three-phase four-wire system, and master core and auxiliary core symmetric arrays, electric capacity between core, inductance or zero sequence impedance balance, greatly improve the cable power supply quality, satisfy the frequency converter instructions for use.
The utility model is except having kept the due electrical property of frequency-changing cable institute, cold tolerance, softness, weather resisteant energy, ageing-resistant performance and the chemical resistance of the cable that has also improved, be applicable to-60 ℃ and above high height above sea level, high and cold and severe cold area variable-frequency motor service cable circuit, its working temperature can be brought up to 125 ℃, therefore, also improved the current capacity of cable.
Description of drawings
Among the figure: 1-leading body; 2-auxiliary conductor; 3-separator; 4-insulation; 5-filler; 6-lapping layer; 7-inner sheath; 8-screen; 9-oversheath.
The tool present embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
Referring to accompanying drawing, leading body 1 and auxiliary conductor 2 all adopt the many multiply soft copper wire harness structure that closes and tangle again, separator 3 adopts that nonwoven fabrics is wrapped to be formed, insulating barrier 4 adopts the High tear resistance silicon rubber material, separator 3 and insulating barrier 4 closely are coated on conductor 1 and 2, form three main insulation cores and three supplementary insulation cores, be twisted into cable core by two kinds of insulated wire cores, and adopt the space between 5 pairs of insulated wire cores of low temperature material to fill, the cable core outside is distributed with reinforced non-woven fabrics band lapping layer 6 successively, extrude TPE elastomer inner sheath 7, tinned copper wire woven shield 8 and extrude phenylethylene elastomer oversheath 9.
Claims (9)
1. cold-resistant type frequency-changing cable, it is characterized in that this cable is twisted into cable core by three main insulation cores and three supplementary insulation cores of symmetric arrays, described main insulation core is comprised of leading body (1), separator (3), insulating barrier (4) from the inside to surface, the supplementary insulation core is comprised of auxiliary conductor (2), separator (3), insulating barrier (4) from the inside to surface, filler (5) is arranged between main insulation core, the supplementary insulation core, and described cable core has lapping layer (6), inner sheath (7), screen (8) and oversheath (9) outward successively.
2. cold-resistant type frequency-changing cable according to claim 1 is characterized in that: described leading body and auxiliary conductor are the bundle of the multiply annealed copper wire structure that closes and tangle again.
3. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described separator forms by nonwoven fabrics is wrapped.
4. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described insulating barrier is the High tear resistance silicon rubber insulating material.
5. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described filler is the high-low temperature resistant soft material.
6. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described lapping layer forms by the reinforced non-woven fabrics band is wrapped.
7. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described inner sheath is for extruding thermoplastic elastomer (TPE).
8. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described screen is tincopper fuse wire braided armor.
9. cold-resistant type frequency-changing cable according to claim 1, it is characterized in that: described oversheath is for extruding styrene analog thermoplastic elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532637 CN202917239U (en) | 2012-10-18 | 2012-10-18 | Cold-resistant type frequency conversion cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532637 CN202917239U (en) | 2012-10-18 | 2012-10-18 | Cold-resistant type frequency conversion cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917239U true CN202917239U (en) | 2013-05-01 |
Family
ID=48165528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220532637 Expired - Lifetime CN202917239U (en) | 2012-10-18 | 2012-10-18 | Cold-resistant type frequency conversion cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917239U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268787A (en) * | 2013-05-24 | 2013-08-28 | 江苏新长峰线缆有限公司 | Medium voltage variable frequency power cable |
| CN103413612A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Cross linked polyethylene insulated power cable |
| CN106710695A (en) * | 2015-07-20 | 2017-05-24 | 上海名耐特种电缆有限公司 | Cold-resistant chain sheath cable |
-
2012
- 2012-10-18 CN CN 201220532637 patent/CN202917239U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268787A (en) * | 2013-05-24 | 2013-08-28 | 江苏新长峰线缆有限公司 | Medium voltage variable frequency power cable |
| CN103413612A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Cross linked polyethylene insulated power cable |
| CN106710695A (en) * | 2015-07-20 | 2017-05-24 | 上海名耐特种电缆有限公司 | Cold-resistant chain sheath cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.999, Shuangdeng Avenue, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Shuangdeng Cable Co.,Ltd. Address before: Jiangyan City, Jiangsu province 225526 Taizhou city Liang Xu Shuangdeng science and Industry Park No. 1 Patentee before: JIANGSU SHUANGDENG POWER TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |