CN204808957U - Environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable - Google Patents
Environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable Download PDFInfo
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- CN204808957U CN204808957U CN201520462859.4U CN201520462859U CN204808957U CN 204808957 U CN204808957 U CN 204808957U CN 201520462859 U CN201520462859 U CN 201520462859U CN 204808957 U CN204808957 U CN 204808957U
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Abstract
The utility model discloses an environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable, including a cable core, the cable core parallel by four sinle silks and fill the filler in space department behind the pair twist and form, around package polypropylene band, dredge around the copper wire layer outside the polypropylene band outside the cable core to it constitutes the double -shielded layer to pass through the composite aluminium -plastic tape fastening at the skin, be equipped with the polyethylene tie coat again outside composite aluminium -plastic tape, weave high magnetic conduction steel armor outside the polyethylene tie coat, on outmost crowded packet of protection against rodents ant composite sheath layer of cable. The utility model discloses easy crooked effect when also having reached the cabling when improving the shielding effect greatly, in addition, reached and prevented termite and the effect of mouse to its erosion in the electric Railway district section, avoided ordinary railway signal cable to cause the purpose that the cable hurts influences the mission of cable because of the external environment factor.
Description
Technical field
The utility model relates to joins field of cable technology, particularly relates to a kind of environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable.
Background technology
Recent years, China railways keeps developing fast, particularly in high speed railway construction, achieves significant achievement.Since Ministry of Railways's system reform, high ferro enters another developing stage, develops gradually from domestic to overseas market." prediction of 2013-2017 Chinese Railway industry market is reported with investment strategy planning application " is studied and is shown: China's Electrified Railways total kilometrage broke through 5.1 ten thousand kilometers in 54 years, surmount the world-class Russia of former electric railway, risen to as No. 1 in the world.Rough estimates, newly-started electric railway in 2012 is about 1450 kilometers, comparatively rises nearly 80% last year.In recent years, the bridge line rate of Chinese newly-built high ferro constantly promoted, and within 2006, the newly-started high metal bridge line rate of China is only 32.64%, within 2007, brings up to 46.72%, reaches 60.46% by 2008.The Beijing-Tianjin inter-city railway bridge line rate 88% of built operation, built or be respectively 73.5%, 80%, 94% what build as Harbin-Dalian Passenger Dedicated Line, Beijing-Shanghai express railway, wide pearl inter-city passenger rail bridge line rate.Think, the bridge line rate of following high-speed railway will remain on more than 55%.
Along with the high speed development of electrified railway track communications, it is applied to the demand also corresponding increase of the railway signal cable of railway track traffic industry, its performance requirement is also more and more higher, is easy to bend, constructability, shielding factor are good, the railway signal cable of long service life more can be favored.
Utility model content
The utility model in order to solve the problem of prior art, provide a kind ofly be easy to bend, constructability, shielding factor are good, the environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable of long service life.
A kind of environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable described in the utility model, comprises cable core, and described cable core forms by filling the gasket for packing 2 that blocks water after four cores 1 side by side pair twist in gap; At the outer wrapped polypropylene band 3 of cable core, outer thin around copper wire layer 4 at polypropylene band 3, and at skin by aluminium-plastic tape 5 fastening formation double shield layer; Outside aluminium-plastic tape 5, be provided with polyethylene bonding layer 6 again, at the high magnetic conduction steel armour 7 of the outer braiding of polyethylene bonding layer 6, extrude rat-and-ant proof composite sheath layer 8 at the outermost layer of cable.
Further improvement, the copper wire that described copper wire layer 4 is 0.43mm by many thickness adopts annular equidistantly to form squeezing.
Further improvement, the thickness of described aluminium-plastic tape is 1/2 of the thin thickness around copper wire layer.
Compared with prior art, the utility model beneficial effect is:
1, by improving common railway signal original aluminium sheath shielding construction form, adopt copper wire and aluminium-plastic tape double action to make shielding factor reach less than 0.1, super common railway signal cable 0.5-0.8 far away, to improve better shield effectiveness;
2, by change to shielding construction form, become dredge directly extruding aluminium sheath structure around thin copper wire and vertical alclad plastic composite strip structure, bending radius required when substantially reducing cable laying, is convenient to cable construction;
3, be set to by the thickness of aluminium-plastic tape dredge 1/2 of the thickness around copper wire layer, also make the diameter of whole cable little while having made the quality of cable light, sealing, rounding property are better;
4, high density material is adopted to form oversheath, have good resistance to wear and mechanical strength, resistance to environmental aging performance is more than 10 times of common material, solves the aging cracking problem of conventional signal cable, simultaneously because adding environment protection, rat ant additive, also reach the object of rat-and-ant proof.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable as shown in Figure 1, comprises cable core, and described cable core forms by filling filler after four core pair twists arranged side by side in gap; At the outer wrapped polypropylene band of cable core, dredge around copper wire layer outward at polypropylene band, and at skin by aluminium-plastic tape fastening formation double shield layer, make shielding factor reach less than 0.1, super common railway signal cable 0.5-0.8 far away, to improve better shield effectiveness; Polyethylene bonding layer is provided with again outside aluminium-plastic tape, high magnetic conduction steel armour is woven outward at polyethylene bonding layer, rat-and-ant proof composite sheath layer is extruded at the outermost layer of cable, resistance to environmental aging performance is more than 10 times of common material, solve the aging cracking problem of conventional signal cable, simultaneously because adding environment protection, rat ant additive, also reach the object of rat-and-ant proof.
The copper wire that described copper wire layer 4 is 0.43mm by many thickness adopts annular equidistantly to form squeezing; The thickness of described copper wire layer 4 is 0.45mm, then the thickness of aluminium-plastic tape 5 is 0.225mm.
The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (3)
1. an environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable, comprises cable core, it is characterized in that: described cable core forms by filling the gasket for packing (2) that blocks water after four cores (1) side by side pair twist in gap; The outer wrapped polypropylene band (3) of cable core, dredge around copper wire layer (4) outward at polypropylene band (3), and at skin by aluminium-plastic tape (5) fastening formation double shield layer; Outside aluminium-plastic tape (5), be provided with polyethylene bonding layer (6) again, weave high magnetic conduction steel armour (7) outward at polyethylene bonding layer (6), extrude rat-and-ant proof composite sheath layer (8) at the outermost layer of cable.
2. environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable according to claim 1, is characterized in that: the copper wire that described copper wire layer (4) is 0.43mm by many thickness adopts annular equidistantly to form squeezing.
3. environment protection double-shielded high-performance rat-and-ant proof integrated sheath railway signal cable according to claim 1, is characterized in that: the thickness of described aluminium-plastic tape (5) is 1/2 of the thickness of copper wire layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520462859.4U CN204808957U (en) | 2015-07-01 | 2015-07-01 | Environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520462859.4U CN204808957U (en) | 2015-07-01 | 2015-07-01 | Environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable |
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| Publication Number | Publication Date |
|---|---|
| CN204808957U true CN204808957U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520462859.4U Active CN204808957U (en) | 2015-07-01 | 2015-07-01 | Environment -friendly double -shielded high performance protection against rodents ant composite sheath railway signal cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952544A (en) * | 2015-07-01 | 2015-09-30 | 无锡市曙光电缆有限公司 | Environment-friendly, double-shielded and high-performance railway signal cable with anti-rat and anti-ant comprehensive sheath |
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2015
- 2015-07-01 CN CN201520462859.4U patent/CN204808957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952544A (en) * | 2015-07-01 | 2015-09-30 | 无锡市曙光电缆有限公司 | Environment-friendly, double-shielded and high-performance railway signal cable with anti-rat and anti-ant comprehensive sheath |
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