CN204991173U - Electric Railway cable - Google Patents
Electric Railway cable Download PDFInfo
- Publication number
- CN204991173U CN204991173U CN201520599305.9U CN201520599305U CN204991173U CN 204991173 U CN204991173 U CN 204991173U CN 201520599305 U CN201520599305 U CN 201520599305U CN 204991173 U CN204991173 U CN 204991173U
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- outer cladding
- electric railway
- conductor
- railway cable
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Abstract
The utility model provides an electric Railway cable, includes conductor 1, the 1 outer package semi -conductive water -blocking tapes 2 that winds of conductor, the outer cladding conductor shield 3 of semi -conductive water -blocking tapes 2, the outer wrapped insulating layer 4 of conductor shield 3, 4 outer cladding insulation screen 5 of insulating layer, the outer cladding iron shielded layer 6 of insulation screen 5, the outer cladding flame retardant coating 7 of iron shielded layer 6, 7 outer cladding inner sheath layers 8 of flame retardant coating, 8 outer cladding armor 9 on the inner sheath layer, the fire -retardant band layer 10 of 9 outer claddings of armor, 10 outer cladding oversheath layer 11 on the fire -retardant band layer. The beneficial effects are that environmental protection, security height, protection against rodents termite resistance, ultraviolet resistance, blocking water nature is good, fire behavior is excellent, the tensile can the reinforce, light in weight is favorable to installation, low in production cost, and the wide application for electric locomotive provides power, is the important ultraviolet resistance 0 of electric locomotive's safe operation in the electric Railway system higher to cable safety service requirement.
Description
Technical field
The utility model relates to a kind of cable, is railway cable specifically.
Background technology
Different with the railway that traditional steam locomotive or diesel locomotive tractor-trailer train run, electric railway refers to from external power source and tractive power supply system and obtains electric energy, by electric locomotive traction train operation.It comprises electric locomotive, engineering facility, tractive power supply system, various electric device and the corresponding equipment such as railway communication, signal.Electric railway has the advantages such as transport capacity is large, travel speed fast, the consumption energy is few, operation cost is low, good operation conditions, the main line railway large to freight volume and the mountain area main line railway realization electrification with abrupt slope, long tunnel, all have obvious superiority technically, economically.Rated voltage 27.5kV electric railway cable, as the lifeline of electric locomotive, in the reliability service ensureing electric locomotive, play vital effect, whether cable power supply is reliably related to electric locomotive safe operation, therefore researches and develops cable reliability most important.
Utility model content
The utility model provides a kind of electric railway cable.
The technical solution of the utility model is: a kind of electric railway cable, comprise conductor, the outer wrapped semiconductor waterstop of described conductor, described semiconductor waterstop outer cladding conductor shield, described conductor shield outer cladding insulating barrier, described insulating barrier outer cladding insulation screen, described insulation screen outer cladding metal screen layer, described metal screen layer outer cladding fireprotection layer, described fireprotection layer outer cladding inner restrictive coating, described inner restrictive coating outer cladding armour, the fire-retardant belting layer of described armour outer cladding, described fire-retardant belting layer outer cladding external sheath layer.
Further technical scheme of the present utility model is:
Described conductor is circular stranded compact conductor; Conductor shield and insulation screen are semiconductive shieldin material; Described insulating barrier is 35kV processes for chemically crosslinked polyethylene; It is wrapped that described metal screen layer adopts copper wire bundle to add reverse copper strips overlap around shielding; Described fireprotection layer is four layers of ceramic polyolefin flame-retardant band; Described inner restrictive coating is high density polyethylene (HDPE); Described armour is non magnetic aluminum-alloy wire; Described fire-retardant belting layer is two-layer ceramic polyolefin flame-retardant band; Described external sheath layer is the termite-proof low-smoke and halogen-free flame retardant polyolefin jacket of protection against rodents.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, conductor adopts circular aluminum alloy filaments stranded, and plied monofilament adopts molded line, conductor compacting coefficient 0.91-0.98, replaces copper to greatly reduce the production cost of product with aluminium alloy, lightweight, is conducive to mounting and installation; In order to ensure the safe and reliable use of cable, when conductor is installed, adopt aluminium alloy special wiring terminal.
2, block-water performance: the outer wrapped semiconductive of conductor blocks water band, while homogenizing electric field, is conducive to the block-water performance of cable, simultaneously, inner restrictive coating adopts high density polyethylene (HDPE) protective cover material to extrude, and forms composite water blocking structure, promote the water-resisting ability of cable further with the outer band of conductor.
3, metal screen layer adopts copper wire bundle to add the overlapping wrapped pattern of reverse copper strips around shielding, reverse grafting copper strips adopts overlapping wrapped pattern, improve the bulk shielding performance of cable further, consider short circuit current bearing capacity simultaneously, be conducive to the safe handling of cable.
4, armour adopts non magnetic aluminum-alloy wire, avoids single-core cable and adopts magnetic material can cause the defect of magnetic hysteresis loss and eddy current loss; While guarantee cable resistance to tension, have lightweight, be conducive to the feature such as mounting and installation, good economy performance.
, fire protecting performance: metal screen layer and armour adopt that multi-layer ceramics polyolefin high flame retardant belting layer is wrapped to cooperatively interact outward, and improve fireproofing of cable performance, test shows, the circuit integrity test of cable, at flame temperature 950 DEG C, energy normal power supply 90 minutes, is conducive to safe rescue.
6, cable jacket layer adopts protection against rodents termite-proof UV resistance line style halogen-free low-smoke high-flame polyolefin jacket, meets the various environmental demands of electric railway cable application, extends the scope of application of cable.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Number in the figure: 1 conductor, 2 semiconductor waterstop, 3 conductor shields, 4 insulating barriers, 5 insulation screens, 6 metal screen layers, 7 fireprotection layers, 8 inner restrictive coatings, 9 armours, 10 fire-retardant belting layers, 11 external sheath layers.
Embodiment
Below by way of optimal case, and further illustrate by reference to the accompanying drawings.
See Fig. 1, conductor 1 adopts circular aluminum alloy filaments stranded, plied monofilament adopts molded line, press coefficient 0.91-0.98, lightweight, good economy performance, the band nominal thickness 0.35mm of the water-band 2 of outer wrapped semiconductive resistance, the band number of plies 1 layer, put up rate scope 20% ~ 25%, conductor shield 3 adopts semiconductive shieldin material, average thickness is not less than 0.5mm, insulating barrier 4 adopts 35kV processes for chemically crosslinked polyethylene to insulate, average thickness is not less than 11.0mm, the degree of eccentricity is not more than 7%, insulation screen 5 adopts semiconductive shieldin material, average thickness is not less than 0.7mm, conductor shield 3, insulating barrier 4 and insulation screen 5 adopt three-layer co-extruded structure, it is wrapped that metal screen layer 6 adopts copper wire bundle to add reverse copper strips overlap around shielding, brass wire diameter is 0.8mm, metallic shield total cross section is about 35mm
2, between adjacent wire, spacing is not more than 4mm, reverse grafting copper strips nominal thickness is 0.1mm, put up rate scope 10% ~ 15%, fireprotection layer 7 adopts overlapping wrapped four layers of ceramic polyolefin high flame retardant band, band nominal thickness 0.4mm, put up rate scope 15% ~ 20%, inner restrictive coating 8 adopts high density polyethylene (HDPE), water resistance is excellent, armour 9 adopts non magnetic aluminum-alloy wire armouring, the outer overlapping wrapped two-layer ceramic polyolefin flame-retardant belting layer 10 band nominal thickness 0.4mm of armour 9, put up rate scope 15% ~ 20%, external sheath layer 11 adopts protection against rodents termite-proof UV resistance line style halogen-free low-smoke high-flame polyolefin jacket, protective cover material oxygen index 38-45.
In concrete enforcement, corresponding vibrational power flow and material property are configured to:
Conductor 1 adopts circular aluminum alloy filaments stranded, and plied monofilament adopts molded line, presses coefficient 0.91-0.98, lightweight, good economy performance;
Conductor 1 outer wrapped semiconductor waterstop 2 band nominal thickness 0.35mm, the band number of plies 1 layer, put up rate scope 20% ~ 25%;
Conductor shield 3 adopts semiconductive shieldin material, average thickness is not less than 0.5mm;
Insulating barrier 4 adopts the insulation of 35kV processes for chemically crosslinked polyethylene, average thickness is not less than 11.0mm, the degree of eccentricity is not more than 7%;
Insulation screen 5 adopts semiconductive shieldin material, average thickness is not less than 0.7mm, and conductor shield 3, insulating barrier 4 and insulation screen 5 adopt three-layer co-extruded technique to extrude simultaneously;
Metal screen layer 6 adopts copper wire bundle to add around shielding, and reverse copper strips overlap is wrapped, brass wire diameter is 0.8mm, metal screen layer total cross section is about 35mm
2, spacing is not more than 4mm, oppositely grafting copper strips nominal thickness and is 0.1mm, puts up rate scope 10% ~ 15% between adjacent wire;
Fireprotection layer 7 adopts overlapping wrapped four layers of ceramic polyolefin flame-retardant band, band nominal thickness 0.4mm, puts up rate scope 15% ~ 20%;
Inner restrictive coating 8 adopts high density polyethylene (HDPE), water resistance excellent;
Armour 9 adopts non magnetic aluminum-alloy wire armouring;
Armour 9 outer overlapping wrapped two-layer ceramic polyolefin flame-retardant band, band nominal thickness 0.4mm, put up rate scope 15% ~ 20%; Test shows, the circuit integrity test of cable, and at flame temperature 950 DEG C, energy normal power supply 40 minutes, is conducive to safe rescue.
External sheath layer 11 adopts protection against rodents termite-proof UV resistance line style halogen-free low-smoke high-flame polyolefin jacket, protective cover material oxygen index is not less than 38-45.
Claims (10)
1. an electric railway cable, comprise conductor (1), it is characterized in that, described conductor (1) is wrapped semiconductor waterstop (2) outward, described semiconductor waterstop (2) outer cladding conductor shield (3), described conductor shield (3) outer cladding insulating barrier (4), described insulating barrier (4) outer cladding insulation screen (5), described insulation screen (5) outer cladding metal screen layer (6), described metal screen layer (6) outer cladding fireprotection layer (7), described fireprotection layer (7) outer cladding inner restrictive coating (8), described inner restrictive coating (8) outer cladding armour (9), the fire-retardant belting layer of described armour (9) outer cladding (10), described fire-retardant belting layer (10) outer cladding external sheath layer (11).
2. electric railway cable according to claim 1, is characterized in that described conductor (1) is for circular stranded compact conductor.
3. electric railway cable according to claim 1, is characterized in that described conductor shield (3) and insulation screen (5) are semiconductive shieldin material.
4. electric railway cable according to claim 1, is characterized in that described insulating barrier (4) is for 35kV processes for chemically crosslinked polyethylene.
5. electric railway cable according to claim 1, is characterized in that described metal screen layer (6) adopts copper wire bundle to add reverse copper strips overlap around shielding wrapped.
6. electric railway cable according to claim 1, is characterized in that described fireprotection layer (7) is four layers of ceramic polyolefin flame-retardant band.
7. electric railway cable according to claim 1, is characterized in that described inner restrictive coating (8) is high density polyethylene (HDPE).
8. electric railway cable according to claim 1, is characterized in that described armour (9) is for non magnetic aluminum-alloy wire.
9. electric railway cable according to claim 1, is characterized in that described fire-retardant belting layer (10) is for two-layer ceramic polyolefin flame-retardant band.
10. electric railway cable according to claim 1, is characterized in that described external sheath layer (11) is for the termite-proof low-smoke and halogen-free flame retardant polyolefin jacket of protection against rodents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599305.9U CN204991173U (en) | 2015-08-06 | 2015-08-06 | Electric Railway cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599305.9U CN204991173U (en) | 2015-08-06 | 2015-08-06 | Electric Railway cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991173U true CN204991173U (en) | 2016-01-20 |
Family
ID=55125516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599305.9U Expired - Fee Related CN204991173U (en) | 2015-08-06 | 2015-08-06 | Electric Railway cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991173U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895227A (en) * | 2016-06-24 | 2016-08-24 | 王纬 | High-reliability environmental-friendly aluminium alloy power cable |
| CN107342136A (en) * | 2017-06-23 | 2017-11-10 | 中天科技海缆有限公司 | A kind of filled type jacket structure cable |
| CN107393650A (en) * | 2017-06-23 | 2017-11-24 | 安徽华通电缆集团有限公司 | A kind of electric railway single-phase copper core flame-retardant refractory water-proof cable |
| CN107767994A (en) * | 2016-08-17 | 2018-03-06 | 江苏宝安电缆有限公司 | A kind of offshore oil platform medium voltage converter cable |
| CN108109767A (en) * | 2017-12-18 | 2018-06-01 | 金杯电工衡阳电缆有限公司 | A kind of wire armouring high voltage power cable |
| CN108682502A (en) * | 2018-06-27 | 2018-10-19 | 中铁第四勘察设计院集团有限公司 | A kind of crack resistence rail traffic 35kV power cables |
| CN112280142A (en) * | 2020-10-10 | 2021-01-29 | 安徽新亚特电缆集团有限公司 | Low-smoke halogen-free flame-retardant rat-proof oil-proof polyolefin cable material and preparation method and application thereof |
| CN112635119A (en) * | 2021-01-15 | 2021-04-09 | 焦作铁路电缆有限责任公司 | B1-grade flame-retardant ultra-low-dropping electrified railway 27.5kV cable |
| CN114927270A (en) * | 2022-06-17 | 2022-08-19 | 宇盛电气有限公司 | Aluminum alloy core crosslinked ethylene insulation low-smoke halogen-free polyolefin sheath flame-retardant power cable and preparation process thereof |
-
2015
- 2015-08-06 CN CN201520599305.9U patent/CN204991173U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895227A (en) * | 2016-06-24 | 2016-08-24 | 王纬 | High-reliability environmental-friendly aluminium alloy power cable |
| CN105895227B (en) * | 2016-06-24 | 2017-12-22 | 盐城利维线缆有限公司 | A kind of high reliability environmental protection aluminium alloy power cable |
| CN107767994A (en) * | 2016-08-17 | 2018-03-06 | 江苏宝安电缆有限公司 | A kind of offshore oil platform medium voltage converter cable |
| CN107342136A (en) * | 2017-06-23 | 2017-11-10 | 中天科技海缆有限公司 | A kind of filled type jacket structure cable |
| CN107393650A (en) * | 2017-06-23 | 2017-11-24 | 安徽华通电缆集团有限公司 | A kind of electric railway single-phase copper core flame-retardant refractory water-proof cable |
| CN108109767A (en) * | 2017-12-18 | 2018-06-01 | 金杯电工衡阳电缆有限公司 | A kind of wire armouring high voltage power cable |
| CN108682502A (en) * | 2018-06-27 | 2018-10-19 | 中铁第四勘察设计院集团有限公司 | A kind of crack resistence rail traffic 35kV power cables |
| CN112280142A (en) * | 2020-10-10 | 2021-01-29 | 安徽新亚特电缆集团有限公司 | Low-smoke halogen-free flame-retardant rat-proof oil-proof polyolefin cable material and preparation method and application thereof |
| CN112635119A (en) * | 2021-01-15 | 2021-04-09 | 焦作铁路电缆有限责任公司 | B1-grade flame-retardant ultra-low-dropping electrified railway 27.5kV cable |
| CN114927270A (en) * | 2022-06-17 | 2022-08-19 | 宇盛电气有限公司 | Aluminum alloy core crosslinked ethylene insulation low-smoke halogen-free polyolefin sheath flame-retardant power cable and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200806 |