CN203026246U - Halogen-free low-smoke flame-retardant fire-proof power cable - Google Patents
Halogen-free low-smoke flame-retardant fire-proof power cable Download PDFInfo
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- CN203026246U CN203026246U CN 201220716327 CN201220716327U CN203026246U CN 203026246 U CN203026246 U CN 203026246U CN 201220716327 CN201220716327 CN 201220716327 CN 201220716327 U CN201220716327 U CN 201220716327U CN 203026246 U CN203026246 U CN 203026246U
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Abstract
The utility model relates to a halogen-free low-smoke flame-retardant fire-proof power cable. An insulating line core is formed by extruding a crosslinked polyethylene insulating layer (4) on a copper conductor (1), a cable core is formed by mutually twisting a plurality of insulating line cores, the halogen-free low-smoke flame-retardant fire-proof power cable is characterized in that two layers of overlapped lapping fire-proof mica tape (2) and a non-woven fabric layer (3) are sequentially arranged between the copper conductor (1) and the crosslinked polyethylene insulating layer (4); filling layers (5) are arranged at gaps of the cable core, a halogen-free low-smoke flame-retardant wrapping tape I (6), two layers of overlapped lapping fire-proof mica tape (7), a halogen-free low-smoke flame-retardant wrapping tape II (8) and a halogen-free low-smoke flame-retardant polyolefin sheath (9) are sequentially arranged outside the cable core and the filling layers. According to the halogen-free low-smoke flame-retardant fire-proof power cable, two layers of mica tapes are overlapped between the copper conductor and the crosslinked polyethylene insulating layer of the cable core, and two layers of mica tape are lapped outside the cable core and the filling layers again, and the two mica tape fire-proof layers are arranged, so that the fire proofing property of the cable can be greatly improved.
Description
Technical field
The utility model relates to a kind of power cable, and particularly the LSOH anti-flaming fireproof power cable, belong to technical field of electric wires and cables.
Background technology
In recent years, in the public place fire, casualties is larger, and main cause is to produce a large amount of smog and poisonous gas when having used a large amount of inflammable combustible materials and burning.Because China is populous, the public place density of personnel is larger, and in fire, 80% personnel death is because sucked due to poisonous burning gases in public places, produces the evacuation that a large amount of smog also is unfavorable for personnel during burning.
Fire-resisting cable is when fire occurs, still can guarantee circuit normal power-up in certain hour, during with satisfied contingency breaking out of fire, the normal power supply of illumination, emergent broadcast, fire protection alarm device, automatic fire-fighting facility and other emergency set of passage, in time evacuate personnel.Between the emergence period, it also should possess the characteristics such as the amount of being fuming is little, flue gas toxity is low at fire.
Common fire-resisting cable is divided into category-A and category-B in China: the category-B cable can be in the flame of 750 ℃～800 ℃ and rated voltage under tolerance burn at least 90min and cable not breakdown (being that the 3A fuse does not fuse).Developed again the category-A fire-resisting cable improving the flame retardant coating manufacturing process and increase on the basis of the methods such as flame retardant coating, it can be in the flame of 950 ℃～1 000 ℃ and under rated voltage tolerance burn at least 90min and cable not breakdown (being that the 3A fuse does not fuse).The fire resistance of category-A fire-resisting cable is better than category-B.In addition, mineral insulated cable is more excellent a kind of of fire-resisting cable performance, and it is formed by copper core, copper sheath, magnesium oxide insulated materials processing.This cable consists of flame retardant coating by inorganic matter fully, and the flame retardant coating of common fire-resisting cable is to be composited by inorganic matter and general organic substance, so the more common fire-resisting cable of the fire resistance of mineral insulated cable is more excellent and can not decompose the generation corrosive gas because of burning.Mineral insulated cable have good fire-resistance property and can long-term work under 250 ℃ of high temperature, simultaneously in addition explosion-proof, corrosion resistance is strong, ampacity is large, radiation hardness, mechanical strength is high, volume is little, lightweight, the life-span long, smokeless characteristics.But price, complex process, difficulty of construction are large.
Because the mineral insulated cable price is higher, output investment ratio is larger, and the general user is difficult to bear, and technique is comparatively complicated in addition, these feature limits the promotion and application of mineral insulated cable.And general fire-resisting cable be between copper conductor and insulating barrier wrapped some stratus master tapes as flame retardant coating.Mica tape is take glass wool cloth as skeleton, with organosilicon coating built up mica paper, and makes after curing.Its fusing point is 1200～1300 ℃.This cable is applicable to the general occasion that fire-resistant requirement is arranged, and for some important fire-fighting equipments and urgent supply line and control circuit to emergency services such as leading lights, for the fail safe that improves power supply with assure the safety for life and property of the people, need exploitation have high performance fire-resisting cable.
The utility model content
Goal of the invention of the present utility model is to provide the LSOH anti-flaming fireproof power cable that a kind of production cost is low, technique is simple, fire resistance is good.
The utility model realizes that goal of the invention adopts following technical scheme:
A kind of LSOH anti-flaming fireproof power cable, extrude crosslinked polyetylene insulated layer by copper conductor and consist of insulated wire cores, mutual stranded formation cable core between many eradication edge cores, its design feature is, is provided with successively two superimposed wrapped fire-resistant the first mica tape and layer of non-woven fabric layer between described copper conductor and crosslinked polyetylene insulated layer; The gap of described cable core is provided with packed layer; Described cable core and packed layer are provided with LSOH anti-flaming band one, wrapped fire-resistant the second mica tape, the LSOH anti-flaming band two and halogen-free and low-smoke flame-retardant polyolefin sheathed of two superimposed outward successively.
The utility model design feature is:
Described packed layer adopts LSOH anti-flaming glass fibre gasket for packing to fill.
Described LSOH anti-flaming band one and LSOH anti-flaming glass fibre band two are the glass fibre band.
The utility model beneficial effect is embodied in:
1, the utility model cable overlapping wrapped two-layer mica tape between the copper conductor of core and crosslinked polyetylene insulated layer, and outside cable core and packed layer wrapped two-layer mica tape again, two mica tape flame retardant coatings are set, improved greatly the fire resistance of cable.Can extend the time of cable safe operation in the flame combustion situation.
2, the utility model cable adopts after the wrapped mica tape in conductor outside, more wrapped layer of non-woven fabric protective layer, and protection mica tape mica tape in production and handling process is not damaged.
3, the utility model adopts outside cable core and all is provided with the LSOH anti-flaming band inside and outside mica tape, when breaking out of fire, can protect mica tape, can further stop flame to spread to the cable internal layer.
Description of drawings
Fig. 1 is the utility model construction of cable schematic diagram.
Number in the figure: 1 copper conductor, 2 fire-resistant the first mica tapes, 3 nonwoven layer, 4 crosslinked polyetylene insulated layers, 5 packed layers, 6 LSOH anti-flaming bands one, 7 fire-resistant the second mica tapes, 8 LSOH anti-flaming bands two, 9 halogen-free and low-smoke flame-retardant polyolefin sheathed.
Technical solutions of the utility model are described further by embodiment below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 1, the utility model cable is from the inside to the outside successively by copper conductor 1, fire-resistant the first mica tape 2, nonwoven layer 3, crosslinked polyetylene insulated layer 4, packed layer 5, LSOH anti-flaming band 1, fire-resistant the second mica tape 7; LSOH anti-flaming band 28; Halogen-free and low-smoke flame-retardant polyolefin sheathed 9 form.
In concrete enforcement, conductor adopts annealed copper conductor compacting lay configuration, and fire-resistant the first mica tape 2 is wrapped on copper conductor 1, and nonwoven layer 3 is wrapped on mica tape, and crosslinked polyetylene insulated layer 4 is extruded on nonwoven layer, and adopts vapor crosslinking; Three thoroughly do away with the edge core twists together the formation cable core, space between insulated wire cores (being packed layer 5) adopts the LSOH anti-flaming glass cord to fill, the outer wrapped one deck LSOH anti-flaming band 1 of cable core, be disposed with wrapped fire-resistant the second mica tape 7 of two superimposed in the outside of band, LSOH anti-flaming band 28 extrudes halogen-free and low-smoke flame-retardant polyolefin sheathed 9 at last on combustion band two.Fire-retardant band one and fire-retardant band two are the glass fibre band.Cable has excellent fire resistance.When breaking out of fire, can further stop flame to spread to the cable internal layer.Can extend the time of cable safe operation in the flame combustion situation.
Claims (3)
1. LSOH anti-flaming fireproof power cable, extrude crosslinked polyetylene insulated layer (4) by copper conductor (1) and consist of insulated wire cores, mutual stranded formation cable core between many eradication edge cores, it is characterized in that, be provided with successively wrapped fire-resistant the first mica tape (2) of two superimposed and layer of non-woven fabric layer (3) between described copper conductor (1) and crosslinked polyetylene insulated layer (4); The gap of described cable core is provided with packed layer (5); Described cable core and packed layer are provided with wrapped fire-resistant the second mica tape (7) of LSOH anti-flaming band one (6), two superimposed, LSOH anti-flaming band two (8) and halogen-free and low-smoke flame-retardant polyolefin sheathed (9) outward successively.
2. a kind of LSOH anti-flaming fireproof power cable according to claim 1, is characterized in that, described packed layer (5) adopts the LSOH anti-flaming glass cord to fill.
3. a kind of LSOH anti-flaming fireproof power cable according to claim 1, is characterized in that, described LSOH anti-flaming band one (6) and LSOH anti-flaming band two (8) are the glass fibre band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716327 CN203026246U (en) | 2012-12-21 | 2012-12-21 | Halogen-free low-smoke flame-retardant fire-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220716327 CN203026246U (en) | 2012-12-21 | 2012-12-21 | Halogen-free low-smoke flame-retardant fire-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026246U true CN203026246U (en) | 2013-06-26 |
Family
ID=48650212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220716327 Expired - Fee Related CN203026246U (en) | 2012-12-21 | 2012-12-21 | Halogen-free low-smoke flame-retardant fire-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026246U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601357A (en) * | 2016-12-30 | 2017-04-26 | 上海南大集团有限公司 | Copper band shielding steel band armoured flame-retardant A type fireproof environment-friendly low-voltage power cable |
| CN107316701A (en) * | 2017-07-25 | 2017-11-03 | 天津山旗线缆有限公司 | A kind of low-smoke zero-halogen fire-resistant cable |
| CN109148033A (en) * | 2018-08-30 | 2019-01-04 | 金杯电工衡阳电缆有限公司 | A kind of low smoke halogen-free fire retardant fire resistant aluminium alloy power cable |
| CN111968785A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Halogen-free low-smoke flame-retardant power cable |
| CN111968784A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Optical fiber composite medium-voltage cable and preparation method thereof |
| CN112542277A (en) * | 2020-11-18 | 2021-03-23 | 郑艳亭 | Preparation process of high-flame-retardant cable of power line |
-
2012
- 2012-12-21 CN CN 201220716327 patent/CN203026246U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601357A (en) * | 2016-12-30 | 2017-04-26 | 上海南大集团有限公司 | Copper band shielding steel band armoured flame-retardant A type fireproof environment-friendly low-voltage power cable |
| CN107316701A (en) * | 2017-07-25 | 2017-11-03 | 天津山旗线缆有限公司 | A kind of low-smoke zero-halogen fire-resistant cable |
| CN109148033A (en) * | 2018-08-30 | 2019-01-04 | 金杯电工衡阳电缆有限公司 | A kind of low smoke halogen-free fire retardant fire resistant aluminium alloy power cable |
| CN111968785A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Halogen-free low-smoke flame-retardant power cable |
| CN111968784A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Optical fiber composite medium-voltage cable and preparation method thereof |
| CN112542277A (en) * | 2020-11-18 | 2021-03-23 | 郑艳亭 | Preparation process of high-flame-retardant cable of power line |
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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 |
Granted publication date: 20130626 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |