CN202282185U - Environmental-protection fireproof cable for rail transit - Google Patents
Environmental-protection fireproof cable for rail transit Download PDFInfo
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- CN202282185U CN202282185U CN2011204130843U CN201120413084U CN202282185U CN 202282185 U CN202282185 U CN 202282185U CN 2011204130843 U CN2011204130843 U CN 2011204130843U CN 201120413084 U CN201120413084 U CN 201120413084U CN 202282185 U CN202282185 U CN 202282185U
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- cable
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- insulating layer
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Abstract
The utility model relates to an environmental-protection fireproof cable for rail transit, mainly comprising a conductor and an insulating layer arranged outside the conductor; the environmental-protection fireproof cable is characterized in that: a mica layer is arranged between the conductor and the insulating layer, and an aluminium tape and an outer protective layer are arranged outside the insulating layer. In the utility model, when the cable is used, the mica layer is arranged between the conductor and the insulating layer and the aluminium tape and the outer protective layer are arranged outside the insulating layer, a mica tape is wound outside the conductor, the insulating layer is made of a water-repellent irradiation cross-linked polyethylene material and the outer protective layer is made of temperature-resistance waterproof ageing-resisting environment-protection material LSZH (Low Smoke Zero Halogen), and the insulating layer externally adopts a multi-layer composite waterproof isolating layer structure wound by water-blocking tapes and wrapped longitudinally by the aluminium tape. The water tree resistance, water resistance and electrical property of the cable are enhanced, the cable is environmentally-friendly, weather-resistant and flame-retarding, the physical and mechanical contrast of the cable is improved, and the cable meets the A-level flame-retarding requirement specified in GA306.1-2008.
Description
Technical field
The utility model relates to the technical field of cable, and specifically a kind of rail is handed over the environmental-protection fireproof cable.
Background technology
Nowadays along with the continuous development of science and technology; Various electric power, transmission of Information network are very extensive; The purposes of cable is expansion greatly also, is widely used in places such as harbour, harbour, hydroelectric station, reservoir, tunnel, and the place that cable is settled is also very complicated; Usually work in a humid environment, this is just to waterproof, the fire protection requirement height very of cable.
The fire-proof insulation cable that adopts on the market; The general rigidity mineral insulated cable that adopts; This kind cable has following shortcoming: 1. drawing copper tubes technology makes that single continuous length is limited; Need in the process of installing constantly to use joint, increase material and cost of labor, and need butt joint place electric property to do special processing.2. magnesium oxide powder serves as insulating barrier, is prone to produce the became uneven phenomenon, and technology has mistake just can puncture slightly, and rated voltage is up to 450/750V.3. directly receive fiery temperature in case be by fiery copper pipe shell---950 ℃+50 ℃ (plastics oversheath moment scaling loss), the copper conductor heart yearn hinders following temperature rising and increases, so rigidity mineral insulated cable droop loss is big in the fire.4. metallic sheath adopts the segmentation drawing process, and heavy in section 400mm2 is single, and magnesia has pollution to environment no longer than 60 meters, and cost is high, and efficient is difficult to improve.
Existing cable generally is made up of conductor, insulation, shielding and sheath, the water resistance of this cable very a little less than, useful life is short, and in use, need regularly overhaul, so not only waste of manpower increases cost, also has very big potential safety hazard simultaneously.
Summary of the invention
The purpose of the utility model is to provide a kind of improved rail to hand over the environmental-protection fireproof cable, and it can overcome, and cable blocks water in the prior art, the some shortcomings of fire resistance difference.
To achieve these goals; The technical scheme of the utility model is: a kind of rail is handed over the environmental-protection fireproof cable; It mainly comprises the insulating barrier that conductor is outer with being located at conductor, and it is characterized in that: be provided with mica layer between conductor and the insulating barrier, insulating barrier is provided with aluminium strip and outer jacket outward.
During use, be provided with mica layer between the conductor of the utility model cable and the insulating barrier, insulating barrier is provided with aluminium strip and outer jacket outward.Conductor is outer wrapped by mica tape, and insulating barrier adopts anti-water IXPE material oversheath to adopt the water-fast ageing-resistant low smoke and zero halogen protective cover material LSZH of heatproof, insulating barrier adopt outward waterstop wrapped with the vertical bag of the aluminium strip MULTILAYER COMPOSITE insulation layer structure that blocks water.The anti-water of above-mentioned cable is set, is blocked water, electrical property strengthens, the weather-resistance flame-retardant of environmental protection simultaneously, and physical and mechanical properties is greatly improved, and reaches the fire-retardant requirement of GA306.1-2008 regulation A level fully.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe.
The utility model mainly comprises the insulating barrier 3 that conductor 1 is outer with being located at conductor, and its difference with the prior art is: be provided with mica layer 2 between conductor and the insulating barrier, insulating barrier is provided with aluminium strip 5 and outer jacket 6 outward.Be equipped with water blocking layer 4 between insulating barrier and aluminium strip, aluminium strip and the outer jacket, water blocking layer adopts that waterstop is wrapped to form the thickness 0.1-0.3mm of water blocking layer.Outer jacket adopts low smoke and zero halogen protective cover material (LSZH) to process, and the thickness of outer jacket is 2.2-3.5mm.The thickness of mica layer is 0.3-0.8mm, and insulating barrier adopts crosslinked polyethylene (XLPE) to process, and the thickness of insulating barrier is 1.0-1.8mm.
In force, conductor is outer wrapped by mica tape, and insulating barrier adopts the IXPE material of anti-water, and oversheath adopts the water-fast ageing-resistant environment-friendly materials LSZH of heatproof, insulating barrier adopt outward waterstop wrapped with the vertical bag of the aluminium strip MULTILAYER COMPOSITE insulation layer structure that blocks water.The anti-water of the utility model cable is set, is blocked water, electrical property strengthens, the weather-resistance flame-retardant of environmental protection simultaneously, and the physical mechanical contrast is greatly improved, and reaches the fire-retardant requirement of GA306.1-2008 regulation A level fully.
Claims (4)
1. a rail is handed over the environmental-protection fireproof cable, and it mainly comprises the insulating barrier that conductor is outer with being located at conductor, and it is characterized in that: be provided with mica layer between conductor and the insulating barrier, insulating barrier is provided with aluminium strip and outer jacket outward.
2. a kind of rail according to claim 1 is handed over the environmental-protection fireproof cable, it is characterized in that: be equipped with water blocking layer between insulating barrier and aluminium strip, aluminium strip and the outer jacket, waterstop is wrapped forms the thickness 0.1-0.3mm of water blocking layer in the water blocking layer employing.
3. a kind of rail according to claim 1 is handed over the environmental-protection fireproof cable, it is characterized in that: outer jacket adopts the low smoke and zero halogen protective cover material to process, and the thickness of outer jacket is 2.2-3.5mm.
4. a kind of rail according to claim 1 is handed over the environmental-protection fireproof cable, and it is characterized in that: the thickness of mica layer is 0.3-0.8mm, and insulating barrier adopts crosslinked polyethylene to process, and the thickness of insulating barrier is 1.0-1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204130843U CN202282185U (en) | 2011-10-26 | 2011-10-26 | Environmental-protection fireproof cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204130843U CN202282185U (en) | 2011-10-26 | 2011-10-26 | Environmental-protection fireproof cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282185U true CN202282185U (en) | 2012-06-20 |
Family
ID=46228342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204130843U Expired - Lifetime CN202282185U (en) | 2011-10-26 | 2011-10-26 | Environmental-protection fireproof cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064264A (en) * | 2014-06-17 | 2014-09-24 | 丹阳市伟鹤祥线缆制造有限公司 | PVC electronic connection line |
-
2011
- 2011-10-26 CN CN2011204130843U patent/CN202282185U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064264A (en) * | 2014-06-17 | 2014-09-24 | 丹阳市伟鹤祥线缆制造有限公司 | PVC electronic connection line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |