CN208157111U - A kind of rat-and-ant proof electric railway single phase ac cable - Google Patents
A kind of rat-and-ant proof electric railway single phase ac cable Download PDFInfo
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- CN208157111U CN208157111U CN201820811746.4U CN201820811746U CN208157111U CN 208157111 U CN208157111 U CN 208157111U CN 201820811746 U CN201820811746 U CN 201820811746U CN 208157111 U CN208157111 U CN 208157111U
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Abstract
The utility model discloses a kind of rat-and-ant proof electric railway single phase ac cables, are followed successively by conductor, conductor shielding layer, XLPE insulating layer, insulation screen, metal screen layer, band, medium density polyethylene separation layer, the first low-smoke non-halogen flame-retardant band, metal armouring, the second low-smoke non-halogen flame-retardant band, inner sheath and nylon outer sheath from the inside to the outside.The utility model cable outer layer squeezes out 0.6~1.0mm nylon sheath wire, and nylon hardness is big, can effective termite-proof mouse.
Description
Technical field
The utility model relates to a kind of rat-and-ant proof electric railway single phase ac cables.
Background technique
Railway using electric locomotive traction train is known as electric railway.Electric railway is big with transport capacity, goes
Sail the advantages that speed is fast, the consumption energy is few, operation cost is low, good operation conditions, the main line railway big to freight volume and have abrupt slope,
The mountain area main line railway of major long tunnel realizes electrification, technically, economically has apparent superiority.China's electrification iron
Rapidly, dedicated service cable single phase ac cable laying and use environment become increasingly complex, and especially southern area is white for road construction
Ant and mouse are more, it is therefore desirable to develop rat-and-ant proof electric railway single phase ac cable.
Utility model content
The purpose of the utility model is to provide a kind of rat-and-ant proof electric railway single phase ac cables.
The technical solution for realizing the utility model aim is a kind of rat-and-ant proof electric railway single phase ac cable, by interior
Conductor, conductor shielding layer, XLPE insulating layer, insulation screen, metal screen layer, band, medium density polyethylene are followed successively by outer
Separation layer, the first low-smoke non-halogen flame-retardant band, metal armouring, the second low-smoke non-halogen flame-retardant band, inner sheath and nylon outer sheath.
The inner sheath with a thickness of 2.0~3.0mm；The nylon outer sheath with a thickness of 0.6~1.0mm.
The conductor uses diameter to press for the copper wire of 2.0~3.5mm is twisted, and tightening factor 90%, conductor is cut
Face is divided into 150~400mm2；The conductor shield, XLPE insulating layer, insulation screen are three-layer co-extruded, and thickness is followed successively by 0.65
~0.85mm, 10.5~12.5mm and 0.95~1.30mm.
The metal screen layer is dredged using the annealed copper silk of 0.75~0.85mm around shielding, is dredged wrapped around later
0.1 × 15mm copper strips, 45~60mm of copper strips gap, copper wire and the copper strips gross area are 50mm2；Band 6 is non-woven fabrics or is resistance
The composite wrapping tape of water band and aluminium-plastic tape composition, band overlap rate are 15~20%；Thickness is isolated in the medium density polyethylene
Degree is 1.5~2.5mm；The first low-smoke non-halogen flame-retardant band and the second low-smoke non-halogen flame-retardant band are two layers, every thickness
0.2mm is spent, overlap rate is 15~20%.
The metal armouring is aluminium wire or aluminum-alloy wire armouring, and aluminium wire or aluminum-alloy wire diameter are 2.5mm, adjacent two aluminium
Gap between silk or aluminum-alloy wire is not greater than the diameter of an aluminium wire or aluminum-alloy wire.
After above-mentioned technical proposal, the utility model has the effect of below positive：(1) the utility model cable
Outer layer squeezes out 0.6~1.0mm nylon sheath wire, and nylon hardness is big, can effective termite-proof mouse, commonly by odor profiles termite-proof old
Mouse cable, smell will gradually volatilize, and lose effect, the performance that nylon sheath wire has more longlasting termite-proof mouse to gnaw, is electrical
Change railway and more stable power supply is provided；It is existing to use polyolefin as sheath material, it begins to soften at 120 DEG C or more, nylon
Melting temperature is high, more than 200 DEG C, than common cable more resistant to high temperature；Polyolefine material Rockwell hardness≤80, nylon Rockwell hardness >=
120, wearability is good, should not damage when in use.
(2) the utility model uses preferred low-smoke halide-free fireproof composite polyolefine material, can meet GB/T28427- simultaneously
In 2012 national standards, production efficiency is can be improved in the performance of low-smoke low-halogen sheath and low smoke and zero halogen sheath, reduces quantity in stock.
Detailed description of the invention
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, wherein
Fig. 1 is the structural schematic diagram of the cable of the utility model.
Numbering in the drawing is：
Conductor 1, conductor shield 2, XLPE insulating layer 3, insulation screen 4, metal screen layer 5, band 6, middle density are poly-
Ethylene separation layer 7, the first low-smoke non-halogen flame-retardant band 8, metal armouring 9, the second low-smoke non-halogen flame-retardant band 10, inner sheath 11, nylon
Oversheath 12.
Specific embodiment
(embodiment 1)
See that Fig. 1, a kind of rat-and-ant proof electric railway single phase ac cable of the present embodiment are followed successively by conductor from the inside to the outside
1, conductor shield 2, XLPE insulating layer 3, insulation screen 4, metal screen layer 5, band 6, medium density polyethylene separation layer 7,
First low-smoke non-halogen flame-retardant band 8, metal armouring 9, the second low-smoke non-halogen flame-retardant band 10, inner sheath 11 and nylon outer sheath 12.It leads
Body 1 uses diameter to press for the copper wire of 2.0~3.5mm is twisted, tightening factor 90%, and cross-sectional area of conductor is divided into 150~
400mm2；Conductor shield 2, XLPE insulating layer 3, insulation screen 4 are three-layer co-extruded, thickness be followed successively by 0.65~0.85mm,
10.5~12.5mm and 0.95~1.30mm.Metal screen layer 5 is dredged using the annealed copper silk of 0.75~0.85mm around screen
It covers, dredges around wrapped 0.1 × 15mm copper strips later, 45~60mm of copper strips gap, copper wire and the copper strips gross area are 50mm2；Band 6 is
Non-woven fabrics or composite wrapping tape for waterstop and aluminium-plastic tape composition, are formed using waterstop with aluminium-plastic tape compound
Then more preferably, band overlap rate is 15~20% to waterproof performance to band；Medium density polyethylene separation layer 7 is with a thickness of 1.5~2.5mm；
First low-smoke non-halogen flame-retardant band 8 and the second low-smoke non-halogen flame-retardant band 10 are two layers, and every thickness degree 0.2mm, overlap rate is 15
~20%.Metal armouring 9 is aluminium wire or aluminum-alloy wire armouring, and aluminium wire or aluminum-alloy wire diameter are 2.5mm, adjacent two aluminium wires or
Gap between aluminum-alloy wire is not greater than the diameter of an aluminium wire or aluminum-alloy wire.Between inner sheath 11 and nylon outer sheath 12
Spraying adhesive.Inner sheath 11 with a thickness of 2.0~3.0mm, material is halogen-free anti-flaming polyolefin material, tensile strength 13~
15MPa, elongation at break >=200%, air heat aging performance (100 DEG C, 168h), tensile strength change rate≤± 25, fracture
Elongation >=200% can meet in GB/T 28427-2012 national standard, low-smoke low-halogen sheath and low smoke and zero halogen sheath simultaneously
Performance.Nylon outer sheath 12 with a thickness of 0.6~1.0mm, since nylon extrusion performance is poor, temperature is slightly higher, will become very
Dilute flow regime, temperature is slightly lower, and nylon is hardened, it is difficult to squeeze out damage extruder, basis material is used as using nylon 12, to work
It is used as oversheath after skill optimization, there is preferable extrusion performance.Properties of nylons, tensile strength >=35MPa, elongation at break >=
50%, Rockwell hardness >=120, resistant to environmental cracking ability >=1500h is resistant to -35 DEG C of low temperature.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (5)
1. a kind of rat-and-ant proof electric railway single phase ac cable, it is characterised in that：It is followed successively by conductor (1) from the inside to the outside, leads
Body shielded layer (2), XLPE insulating layer (3), insulation screen (4), metal screen layer (5), band (6), medium density polyethylene every
Absciss layer (7), the first low-smoke non-halogen flame-retardant band (8), metal armouring (9), the second low-smoke non-halogen flame-retardant band (10), inner sheath (11) and
Nylon outer sheath (12)；Spraying adhesive between the inner sheath (11) and nylon outer sheath (12).
2. a kind of rat-and-ant proof electric railway single phase ac cable according to claim 1, it is characterised in that：In described
Sheath (11) with a thickness of 2.0~3.0mm；The nylon outer sheath (12) with a thickness of 0.6~1.0mm.
3. a kind of rat-and-ant proof electric railway single phase ac cable according to claim 2, it is characterised in that：It is described to lead
Body (1) uses diameter to press for the copper wire of 2.0~3.5mm is twisted, tightening factor 90%, and cross-sectional area of conductor is divided into 150~
400mm2；The conductor shield (2), XLPE insulating layer (3), insulation screen (4) are three-layer co-extruded, and thickness is followed successively by 0.65~
0.85mm, 10.5~12.5mm and 0.95~1.30mm.
4. a kind of rat-and-ant proof electric railway single phase ac cable according to claim 2, it is characterised in that：The gold
Belong to shielded layer (5) to be dredged using the annealed copper silk of 0.75~0.85mm around shielding, dredge around wrapped 0.1 × 15mm copper later
Band, 45~60mm of copper strips gap, copper wire and the copper strips gross area are 50mm2；Band (6) is non-woven fabrics or is waterstop and plastic-aluminum
The composite wrapping tape of composite band composition, band overlap rate are 15~20%；The medium density polyethylene separation layer (7) is with a thickness of 1.5
~2.5mm；The first low-smoke non-halogen flame-retardant band (8) and the second low-smoke non-halogen flame-retardant band (10) are two layers, every thickness
0.2mm is spent, overlap rate is 15~20%.
5. a kind of rat-and-ant proof electric railway single phase ac cable according to claim 2, it is characterised in that：The gold
Belonging to armouring (9) is aluminium wire or aluminum-alloy wire armouring, and aluminium wire or aluminum-alloy wire diameter are 2.5mm, adjacent two aluminium wires or aluminium alloy
Gap between silk is not greater than the diameter of an aluminium wire or aluminum-alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811746.4U CN208157111U (en) | 2018-05-29 | 2018-05-29 | A kind of rat-and-ant proof electric railway single phase ac cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811746.4U CN208157111U (en) | 2018-05-29 | 2018-05-29 | A kind of rat-and-ant proof electric railway single phase ac cable |
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| Publication Number | Publication Date |
|---|---|
| CN208157111U true CN208157111U (en) | 2018-11-27 |
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|---|---|---|---|
| CN201820811746.4U Active CN208157111U (en) | 2018-05-29 | 2018-05-29 | A kind of rat-and-ant proof electric railway single phase ac cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550429A (en) * | 2018-05-29 | 2018-09-18 | 远东电缆有限公司 | A kind of rat-and-ant proof electric railway single phase ac cable and its manufacturing process |
| CN111540529A (en) * | 2020-04-30 | 2020-08-14 | 安徽电缆股份有限公司 | Single-phase alternating current cross-linked polyethylene insulated cable for electrified railway |
| CN112562911A (en) * | 2020-12-09 | 2021-03-26 | 杭州电缆股份有限公司 | Crosslinked polyethylene insulated cable for electrified railway and production process |
-
2018
- 2018-05-29 CN CN201820811746.4U patent/CN208157111U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550429A (en) * | 2018-05-29 | 2018-09-18 | 远东电缆有限公司 | A kind of rat-and-ant proof electric railway single phase ac cable and its manufacturing process |
| CN111540529A (en) * | 2020-04-30 | 2020-08-14 | 安徽电缆股份有限公司 | Single-phase alternating current cross-linked polyethylene insulated cable for electrified railway |
| CN112562911A (en) * | 2020-12-09 | 2021-03-26 | 杭州电缆股份有限公司 | Crosslinked polyethylene insulated cable for electrified railway and production process |
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