CN203102990U - Novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic - Google Patents
Novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic Download PDFInfo
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- CN203102990U CN203102990U CN 201320050899 CN201320050899U CN203102990U CN 203102990 U CN203102990 U CN 203102990U CN 201320050899 CN201320050899 CN 201320050899 CN 201320050899 U CN201320050899 U CN 201320050899U CN 203102990 U CN203102990 U CN 203102990U
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- power cable
- fire resistant
- low smoke
- zero halogen
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Abstract
The utility model discloses a novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic. The power cable comprises one to five conductors, an insulating layer and an outer sheath sleeved out of an external part of the cable, wherein the conductors are integrally cladded by the insulating layer, the inner side of the outer sheath is provided with a steel tape armor layer, a separation sleeve layer is in the steel tape armor layer, a cabling taped covering is in the separation sleeve layer, a filling layer is arranged between the cabling taped covering and the insulating layer, and the insulating layer, the outer sheath and the separation sleeve layer of the cable are made of ceramic silicone rubber and can rapidly become ceramics through sintering at a high temperature. The power cable provided by the utility model normally operates at a high temperature below 1300 DEG C and discharges no smog and poison gas, completely meeting national standards of China; an expensive mica tape refractory material is not used any more, and the cable has the advantages of convenient processing, simple flow, suitability for industrial production, easy popularization and excellent technical economy.
Description
Technical field
The utility model relates to a kind of power cable, a kind of novel low smoke zero halogen fire resistant fireproof power cable of saying so more specifically.
Background technology
As everyone knows, electric wire is called as the blood vessels and the nerve of people's productive life: transmission ﹠ distribution electric energy, transmission information, but be again " blasting fuse " of fire hazardous simultaneously, also burning thereupon of common cable during breaking out of fire, cause even more serious " spot fire " accident, cause bigger loss for people's lives and properties.Therefore in many important events, as subway, station, market etc., just in case during breaking out of fire, the evacuating personnel escape, the illumination of passage, fireproof alarming device, automatic fire-fighting facility and other emergency set, require all that cable can keep normal power-up at the appointed time when fire takes place, have the LSZH characteristic when requiring cable fire simultaneously.Therefore, people develop the fire-resistant serial cable of LSOH anti-flaming.
LSOH anti-flaming fire-resisting cable: refer to that sample burns under the regulation experimental condition in flame, still can keep the performance of normal operation within a certain period of time, have the LSZH characteristic simultaneously during cable fire.Its basic characteristic is exactly: power cable still can be kept the operate as normal of this circuit a period of time and have the LSZH characteristic under burning condition.Generally be exactly, can keep the normal power supply of a period of time when fire takes place, to keep illumination and transmission signals, LSZH burns simultaneously, and the protection personnel have the time enough safe escape, and is beneficial to fire extinguishing and reduces loss.
At present, common LSOH anti-flaming fireproof power cable is the wrapped fireproof power cable of mica tape both at home and abroad, and its structure is followed successively by from inside to outside: conductor-wrapped mica tape-insulation-stranding is wrapped, filling-armouring-sheath; What wherein play fire-resistant effect is mica tape; Insulating material is identical with common power cable; Filling, wrapped material can adopt common material or flame retardant type material as required; Sheath material can be selected flame-proof PVC, low cigarette, low halogen, Halogen, hypotoxicity sheath material for use according to fire resistance rating.
The mica tape that plays the hot-face insulation effect is to be equipped with suitable adhesive by mica paper and reinforcement with electrician's alkali-free glass fiber cloth to cut the insulating material that forms after curing drying, costs an arm and a leg, and it is very big to account for cable cost proportion.Simultaneously in producing wrapped process, mica powder is reeled and is easy to come off along with the bending of belt, directly influences the fire resistance of product, and mica tape makes moist easily and causes power cable to puncture; Mica tape and reinforced layer must adopt wrapped mode to be coated on the power cable conductor surface, the process structure complexity, and wrapped speed is slow, efficient is low, influences production efficiency of products.In addition, the permission working temperature of different mica tapes differs greatly processing difficulties.More than various defectives cause the power cable fire resistance instability that adopts mica tape fire-resistant, Technological Economy is not high.
In the period of the positive fast development of 21 century urban rail transit in China, track traffic is with the huge market demand of serial electric wire, and industrialization prospect is wide, and used cable mostly requires low cigarette not have (low) halogen, characteristic such as fire-retardant, fire-resistant.Along with the requirement of domestic and international electric wire fireproof is progressively higher, traditional fire-resisting cable is subjected to the limitations restrict of material and structural manufacturing process, researches and develops novel suitable track traffic and more and more comes into one's own with electric wire fireproofing of cable refractory material, new structure technology.
The utility model content
The purpose of this utility model is to solve above-mentioned deficiency, a kind of novel low smoke zero halogen fire resistant fireproof power cable is provided, the utility model has overcome the deficiencies in the prior art, do not re-use expensive mica tape refractory material, but by adopting the novel structure and the material of function admirable, when satisfying the low fire-retardant fire resistance of Halogen, reduce cost greatly, have excellent technical and economy.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
Track traffic of the present utility model novel low smoke zero halogen fire resistant fireproof power cable, be followed successively by conductor, insulating barrier, packed layer, stranding lapping layer, isolate jacket layer, steel-tape armouring layer and oversheath to skin by internal layer, the endothecium structure of described cable is successively by the layer structure integral coating.
As optimal way: the quantity of described conductor is one to five.
As optimal way: can select conductor flexibly according to the quantity of described conductor and cross-sectional area thereof with varying cross-section shape, for example, when described cable contains five cross-sectional areas at 35mm
2During following conductor, selecting cross section be the conductor of circle; When described cable contains five cross-sectional areas at 35mm
2During above conductor, selecting cross section is fan-shaped or leg-of-mutton conductor.
As optimal way: described conductor is a copper conductor.
As optimal way: described insulating barrier is a fireproof electric wire dedicated ceramic silicon rubber.
As optimal way: described packed layer is the fire-retardant packed layers of asbestos, is applied to the filling of multicore cable, so that cable is fire-resistant, rounding.
As optimal way: described stranding lapping layer is a fireproof glass silk fiber band.
As optimal way: described isolation jacket layer is a fireproof electric wire dedicated ceramic silicon rubber.
As optimal way: described steel-tape armouring layer is a galvanized steel strip.
As optimal way: described silicon rubber oversheath is a fireproof electric wire dedicated ceramic silicon rubber.
Compared with prior art, the beneficial effects of the utility model are:
The utility model adopts potteryization silicon rubber as insulating layer material, makes insulating barrier not only to insulation function but also play fire-resistant function, has simplified the construction of cable, by the multi-layer ceramics silastic structure is set, cable is carried out multiple protective in addition, and fail safe is higher.
The utility model is adjusted the conductors cross shape flexibly according to number of conductors and cross-sectional area, and it is tightr that conductor is arranged in cable, and improves space availability ratio and improve stability again.
The insulating barrier of LSOH anti-flaming fireproof power cable described in the utility model, external sheath layer and separation sleeve layer material are the potteryization silastic-layers, at high temperature be sintered into pottery rapidly, cable not fusion under the hot environment below 1300 ℃, do not drip, play firm protective effect, guaranteed the normal operation of cable, and the discharging of non smoke, poison gas, satisfy the national standard requirement fully through evidence; The shape of can using and remain unchanged in fire ensures that circuit is unobstructed under the situation of fire, and does not re-use expensive mica tape refractory material that simple in structure, easy to process, flow process is simple, is fit to suitability for industrialized production, is easy to promote, and has excellent Technological Economy.
Description of drawings
Fig. 1 is an internal structure schematic diagram of the present utility model.
Among the figure, 1 is conductor, and 2 is insulating barrier, and 3 is packed layer, and 4 is the stranding lapping layer, and 5 for isolating jacket layer, and 6 is the steel-tape armouring layer, and 7 is oversheath.
Embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
LSOH anti-flaming fireproof power cable of the present utility model, it comprises potteryization silicone rubber insulation layer 2 and conductor 1, and be enclosed within the outermost potteryization silicon rubber of cable oversheath 7, conductor 1 is by pottery silicone rubber insulation layer 2 integral coating, potteryization silicon rubber oversheath 7 inboards also are provided with steel-tape armouring layer 6, steel-tape armouring layer 6 inboard are that potteryization silicon rubber is isolated jacket layer 5, it is stranding lapping layer 4 that potteryization silicon rubber is isolated jacket layer 5 inboards, also is provided with packed layer 3 between stranding lapping layer 4 and the potteryization silicone rubber insulation layer 2; Wherein conductor 1 is a copper conductor, and quantity is one to five; Packed layer 3 is the fire-retardant packed layers of asbestos; Cable lapping layer 4 is the fireproof glass silk ribbon; Steel-tape armouring layer 6 is a galvanized steel strip.
LSOH anti-flaming fireproof power cable of the present utility model, be followed successively by conductor 1, insulating barrier 2, packed layer 3, stranding lapping layer 4, isolate jacket layer 5, steel-tape armouring layer 6 and oversheath 7 to skin by internal layer, the endothecium structure of described cable is successively by the layer structure integral coating.Wherein conductor 1 quantity is three, and packed layer 3 is the polypropylene plastics bed of material, and cable lapping layer 4 is a reinforced light non-woven fabrics, and steel-tape armouring layer 6 is fireproof electric wire dedicated ceramic silicon rubber for japanning steel band, insulating barrier 2, isolation jacket layer 5 and oversheath 7.
Shown in Fig. 1 left part, a kind of novel LSOH anti-flaming fireproof power cable, be followed successively by conductor 1, insulating barrier 2, packed layer 3, stranding lapping layer 4, isolate jacket layer 5, steel-tape armouring layer 6 and oversheath 7 to skin by internal layer, the endothecium structure of described cable is successively by the layer structure integral coating.Described conductor is that five cross-sectional areas are at 35mm
2Following circular copper conductors, described packed layer 3 is the fire-retardant packed layers of asbestos, and cable lapping layer 4 is a fire-retardant glass fiber belt, and steel-tape armouring layer 6 is a galvanized steel strip, and insulating barrier 2, isolation jacket layer 5 and oversheath 7 are fireproof electric wire dedicated ceramic silicon rubber.
Shown in Fig. 1 right side is divided, a kind of novel LSOH anti-flaming fireproof power cable, be followed successively by conductor 1, insulating barrier 2, packed layer 3, stranding lapping layer 4, isolate jacket layer 5, steel-tape armouring layer 6 and oversheath 7 to skin by internal layer, the endothecium structure of described cable is successively by the layer structure integral coating.Described conductor is that 5 cross-sectional areas are at 35mm
2Above fan-shaped copper conductor; Described packed layer 3 is the fire-retardant packed layers of asbestos, and cable lapping layer 4 is a fire-retardant glass fiber belt, and steel-tape armouring layer 6 is a galvanized steel strip, and insulating barrier 2, isolation jacket layer 5 and oversheath 7 are fireproof electric wire dedicated ceramic silicon rubber.
In the foregoing description, when cable is made, adopt the synnema machine to carry out the strand system of strand, on conductor 1, extrude potteryization silicon rubber with pottery silicon rubber extruding production line and form glue insulating barrier 2, online detection simultaneously, in cabler, make packed layer 3 and stranding lapping layer 4, with pottery silicon rubber extruding production line extruded ceramic silicon rubber on stranding lapping layer 4, form separation sleeve 5, coated steel band on tape armouring machine, form armour 6, use potteryization silicon rubber extruding production line that pottery silicon rubber is extruded on the steel-tape armouring layer 6 at last, form oversheath 7.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. novel low smoke zero halogen fire resistant fireproof power cable, it is characterized in that: described cable is followed successively by conductor (1), insulating barrier (2), packed layer (3), stranding lapping layer (4), isolates jacket layer (5), steel-tape armouring layer (6) and oversheath (7) to skin by internal layer, and the endothecium structure of described cable is successively by the layer structure integral coating.
2. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: the quantity of described conductor (1) is one to five.
3. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: the cross section of described conductor (1) is circular, triangle or fan-shaped.
4. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described conductor (1) is a copper conductor.
5. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described insulating barrier (2) is a fireproof electric wire dedicated ceramic silicon rubber.
6. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described packed layer (3) is the fire-retardant packed layer of asbestos.
7. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described stranding lapping layer (4) is the fireproof glass silk ribbon.
8. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described isolation jacket layer (5) is a fireproof electric wire dedicated ceramic silicon rubber.
9. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described steel-tape armouring layer (6) is a galvanized steel strip.
10. novel low smoke zero halogen fire resistant fireproof power cable according to claim 1 is characterized in that: described silicon rubber oversheath (7) is a fireproof electric wire dedicated ceramic silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050899 CN203102990U (en) | 2013-01-30 | 2013-01-30 | Novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050899 CN203102990U (en) | 2013-01-30 | 2013-01-30 | Novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic |
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| Publication Number | Publication Date |
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| CN203102990U true CN203102990U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320050899 Expired - Fee Related CN203102990U (en) | 2013-01-30 | 2013-01-30 | Novel halogen-free low-smoke flame-retardant fire-resistant power cable for rail traffic |
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| CN (1) | CN203102990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913917A (en) * | 2016-06-02 | 2016-08-31 | 安徽龙庵电缆集团有限公司 | Silicone rubber light-type fireproof ship flexible cable |
| CN107731414A (en) * | 2017-11-28 | 2018-02-23 | 安徽恒晶电缆集团有限公司 | A kind of heat resistance silicon rubber insulating control cable |
-
2013
- 2013-01-30 CN CN 201320050899 patent/CN203102990U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913917A (en) * | 2016-06-02 | 2016-08-31 | 安徽龙庵电缆集团有限公司 | Silicone rubber light-type fireproof ship flexible cable |
| CN107731414A (en) * | 2017-11-28 | 2018-02-23 | 安徽恒晶电缆集团有限公司 | A kind of heat resistance silicon rubber insulating control cable |
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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: 20130731 Termination date: 20220130 |