CN202940013U - Anticorrosion flame-retardant fireproof low-ground resistance through ground wire - Google Patents
Anticorrosion flame-retardant fireproof low-ground resistance through ground wire Download PDFInfo
- Publication number
- CN202940013U CN202940013U CN 201220601605 CN201220601605U CN202940013U CN 202940013 U CN202940013 U CN 202940013U CN 201220601605 CN201220601605 CN 201220601605 CN 201220601605 U CN201220601605 U CN 201220601605U CN 202940013 U CN202940013 U CN 202940013U
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- stainless steel
- conductor
- ground wire
- steel sheath
- fire
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Abstract
The utility model discloses an anticorrosion flame-retardant fireproof low-ground resistance through ground wire which comprises a compacted conductor and a spiral stainless steel sheath wrapped over the periphery of the compacted conductor. According to the utility model, the compacted conductor employs a metal or alloy material compacted and stranded structure, which enables a radial contact area between the interior of the conductor and the stainless steel sheath to be effectively increased and radial resistance of the stranded conductor of the through ground wire to be reduced; increase of the contact area of the stainless steel sheath and the compacted conductor allows high fault current flow discharge performance to be achieved; the through ground wire has the characteristics of a soft overall structure, good ductility, easy laying and capacity of enduring violent vibration and drawing; and the stainless steel sheath has the characteristics of anticorrosion, flame retardation, fire resistance, water resistance, anti-oxidation, a long service life and the like.
Description
Technical field
The utility model relates to a kind of railway cable, particularly a kind of railway signal ground connection Through ground wire.
Background technology
Through ground wire is a kind of integrated ground line for railway signal system, is that electrical system keeps the consistent protective earth of operating potential, guarantees that the grounding safety of system equipment is reliable, eliminates the current potential unsymmetrical current that causes due to potential difference between distinct device.
Existing railway run-through ground line is comprised of pure copper stranded wire and the conductive high polymer sheath, the lead sheath that are coated on copper stranded conductor outside mostly, although lead sheath has good anti-corrosion property, but can cause serious pollution to surrounding enviroment, although and conductive high polymer sheath has good environmental protection characteristic, but do not have flame-retarding characteristic, simultaneously the earth resistance of conducting polymer composite is large, and the fault current earial drainage effect of Through ground wire is had certain influence.
The utility model content
The purpose of this utility model is to provide a kind of antiseptic fire-retardation fire-resistant low earth resistance Through ground wire, to solve traditional lead sheath contaminated environment and the problem of conductive high polymer sheath poor fire.
To achieve these goals, the technical solution adopted in the utility model is:
The utility model further improves and is: comprise compact conductor and the spirality stainless steel sheath that is coated on the compact conductor periphery.
The utility model further improves and is: compact conductor is the metal or alloy material.
The utility model further improves and is: the thickness≤0.3mm of spirality stainless steel sheath.
The utility model further improves and is: have embossing crest and embossing trough on the spirality stainless steel sheath; In an embossing pitch of spirality stainless steel sheath, the ratio of the contact length of spirality stainless steel sheath and compact conductor and embossing pitch 〉=0.6.
The utility model further improves and is: compact conductor comprises mutual stranded metallic conductor or alloy conductor more than seven or seven.
Compared with prior art, the utlity model has following advantage: (1) conductor adopt the metal or alloy material press lay configuration can effectively increase conductor inner and with the radially contact area of sheath, reduce radially resistance of Through ground wire stranded conductor, namely reduce the earth resistance of Through ground wire, strengthened the effect of Through ground wire fault current earial drainage.(2) sheath adopts stainless steel, has good corrosion-resistant, anti-oxidant and flame-retardant performance, can effectively increase the useful life of Through ground wire; Due to spirality stainless steel sheath in the embossing process and Through ground wire conductor contact, by increasing spirality stainless steel sheath and the contact length of compact conductor and the ratio of embossing pitch, can effectively increase the contact area between stainless steel metal sheath and conductor, reduce contact resistance between the two, thereby strengthen the earial drainage effect of Through ground wire fault current.The utility model overall structure is soft, ductility is good, is easy to lay, and can stand the characteristics of high vibration and stretching, and has the characteristics such as waterproof, anti-oxidation, long service life.
Description of drawings
Fig. 1 is the utility model cross section structure schematic diagram;
Fig. 2 is the utility model appearance assumption diagram.
Wherein: 1, compact conductor; 2, spirality stainless steel sheath; 21, embossing crest; 22, embossing trough.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to illustrated in figures 1 and 2, the fire-resistant low earth resistance Through ground wire of a kind of antiseptic fire-retardation of the utility model, comprise cable core and spirality stainless steel sheath 2, cable core comprises the compact conductor 1 of at least two stranded compressions being located at the Through ground wire center, and spirality stainless steel sheath 2 is coated on the cable core outside.Compact conductor 1 can be pressed after stranded by 7 or 7 above metal or alloy materials and forms.Compact conductor 1 adopts the metal or alloy material to press lay configuration, can effectively increase compact conductor 1 inner and with the radially contact area of spirality stainless steel sheath 2, reduce radially resistance of Through ground wire stranded conductor, namely reduce the earth resistance of Through ground wire, strengthened the effect of Through ground wire fault current earial drainage.Spirality stainless steel sheath 2 adopts the vertical bag of stainless steel band to be welded into the closed type stainless steel tube, then with stainless steel tube rolling be spirality embossing metallic sheath, the stainless steel band that adopts has good corrosion-resistant, anti-oxidation and fire resistance, extended the useful life of Through ground wire, nontoxic, harmless, can not cause environmental pollution; Thickness≤the 0.3mm of spirality stainless steel sheath 2; Have embossing crest 21 and embossing trough 22 on spirality stainless steel sheath 2; In an embossing pitch of spirality stainless steel sheath 2, spirality stainless steel sheath 2 and the contact length of compact conductor 1 and the ratio of embossing pitch 〉=0.6, can increase the contact area of Through ground wire spirality stainless steel sheath 2 and compact conductor 1, reduce contact resistance between the two, increase the effect of Through ground wire electric current earial drainage.
Above embodiment only is used for explanation the utility model, but not is used for limiting the utility model.
Claims (5)
1. the fire-resistant low earth resistance Through ground wire of antiseptic fire-retardation, is characterized in that, comprises compact conductor (1) and be coated on the spirality stainless steel sheath (2) of compact conductor (1) periphery.
2. the fire-resistant low earth resistance Through ground wire of a kind of antiseptic fire-retardation according to claim 1, is characterized in that, compact conductor (1) is the metal or alloy material.
3. the fire-resistant low earth resistance Through ground wire of a kind of antiseptic fire-retardation according to claim 1, is characterized in that the thickness≤0.3mm of spirality stainless steel sheath (2).
4. the fire-resistant low earth resistance Through ground wire of a kind of antiseptic fire-retardation according to claim 1, is characterized in that, has embossing crest (21) and embossing trough (22) on spirality stainless steel sheath (2); In an embossing pitch of spirality stainless steel sheath (2), spirality stainless steel sheath (2) and the contact length of compact conductor (1) and the ratio of embossing pitch 〉=0.6.
5. the fire-resistant low earth resistance Through ground wire of a kind of antiseptic fire-retardation according to claim 1, is characterized in that, compact conductor (1) comprises mutual stranded metallic conductor or alloy conductor more than seven or seven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601605 CN202940013U (en) | 2012-11-14 | 2012-11-14 | Anticorrosion flame-retardant fireproof low-ground resistance through ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601605 CN202940013U (en) | 2012-11-14 | 2012-11-14 | Anticorrosion flame-retardant fireproof low-ground resistance through ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940013U true CN202940013U (en) | 2013-05-15 |
Family
ID=48324238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601605 Expired - Lifetime CN202940013U (en) | 2012-11-14 | 2012-11-14 | Anticorrosion flame-retardant fireproof low-ground resistance through ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679415A (en) * | 2016-03-03 | 2016-06-15 | 江苏通鼎光电科技有限公司 | Corrugated alloy sheath railway cut-through ground wire and manufacturing process therefor |
-
2012
- 2012-11-14 CN CN 201220601605 patent/CN202940013U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679415A (en) * | 2016-03-03 | 2016-06-15 | 江苏通鼎光电科技有限公司 | Corrugated alloy sheath railway cut-through ground wire and manufacturing process therefor |
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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 | ||
| CP03 | Change of name, title or address |
Address after: No. 7, Tang Xing Road, Xi'an high tech Zone, Shaanxi Province Patentee after: CHINA XD GROUP CO.,LTD. Address before: No. 7, Tang Xing Road, Xi'an, Shaanxi Province Patentee before: CHINA XD Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |