CN204792049U - Novel dampproofing fireproof cable - Google Patents
Novel dampproofing fireproof cable Download PDFInfo
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- CN204792049U CN204792049U CN201520566551.4U CN201520566551U CN204792049U CN 204792049 U CN204792049 U CN 204792049U CN 201520566551 U CN201520566551 U CN 201520566551U CN 204792049 U CN204792049 U CN 204792049U
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- dampproof
- cable
- covering
- molded line
- fireproof cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
Novel dampproofing fireproof cable, including the cable core, the cable core include type wire aluminium alloy conductor to and insulating layer and the cable core of package outside type wire aluminium alloy conductor winds the covering in proper order, cable core transposition stranding and from inside to outside in proper order the package have the stranding to wind covering, aluminum plastic tape embossing to indulge covering, TPU inner sheath and steel band embossing and indulge the covering, the cable core is around covering and stranding around being equipped with the packing of fire -retardant high temperature between the covering. The utility model discloses a novel dampproofing fireproof cable has good protection against the tide, fire prevention and an environmental protection characteristic, compact structure moreover, and flexibility is good, light in weight and with low costs.
Description
Technical field
The utility model relates to technical field of cable, is specifically related to a kind of low-voltage cable, particularly a kind of power cable with protection against the tide, fire prevention and environmental protection characteristic.
Background technology
Along with the rapid growth of economic society, demand for fire-type special cable rises fast, the particularly mesolow cable of below 35kV, be widely used in all trades and professions, as the distribution system of indoor, the transmission and distribution network of the building such as town region, industrial park or the relative close quarters of population, all must use fireproof cable.
But there are following three large problems in existing mesolow cable fire-proof cable.First be its conductor, substantially adopt copper conductor, do not meet the national conditions of the scarce copper of China, the new demand of " with aluminium for copper " can not be adapted to.Next is its insulation or sheath; mostly have employed the non-environmental protection material as polyvinyl chloride; these traditional materials not only low temperature resistant, wear-resisting, environmental resistance is poor; and easily produce toxic gas in the case of a high temperature after Long-Time Service; a large amount of dense smoke and the very strong hydrogen chloride gas of corrosivity more can be produced, the life of contaminated environment, crisis people during breaking out of fire.Three is not moisture resistance, and this defect causes the problem of two aspects: can decline fast electrical property (as insulation property) and useful life in a humid environment due to it on the one hand, therefore use occasion and laying mode receive negative restriction; On the other hand, because its fire prevention is not moisture resistance, be not suitable for south and the larger situation of some humidity.And come interim at fire, the fire suppression measures of the conducting mediums such as water must be adopted, cable can be made to occur short circuit, also can wound personnel because of electric leakage or cause fire time serious, so from this angle, the existing fireproof cable without waterproof or moisture-proof function, its fireproof actual effect and Practical significance are very limited.
Meaning of the present utility model, not only be the defect for overcoming above-mentioned prior art and the breakdown cable material technical measures taked, as copper conductor replaced with aluminium conductor, material high for content of halogen being replaced with low smoke and zero halogen material etc., but also be, the structural design must taked for replacement material and improvement, and for strengthening the moisture-tolerant structural that fireproof actual effect and Practical significance increase, especially make cable still can have water-proof function in a fire and the structural improvement carried out.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of Dampproof fireproof cable with good protection against the tide, fire performance.
For achieving the above object, the utility model have employed following technical scheme:
A kind of Dampproof fireproof cable, comprise cable core, described cable core comprises molded line aluminium alloy conductor 1, and the insulating barrier 2 wrapped in successively outside molded line aluminium alloy conductor 1 and core wrap; Described cable core twisted synthesizing cable and be surrounded by stranding lapping layer from inside to outside successively, aluminum plastic belt embossing indulges covering 5, TPU inner sheath 6 and steel band embossing indulge covering 7, be provided with inflaming retarding high-temperature between core wrap and stranding lapping layer and fill 4.
Further, indulge covering 7 at steel band embossing and be also provided with fire-retardant oversheath 8 outward.
Further, described molded line aluminium alloy conductor 1 adopt combined by center circular molded line and the multiple ladder-shapeds be looped around outside circular molded line press lay configuration.
Further, described molded line aluminium alloy conductor 1 adopt combined by center circular molded line and six ladder-shapeds be looped around outside circular molded line press lay configuration.
Further, comprise three cable cores, wrapped stranding lapping layer after three cable core dextrad twisted synthesizing cables.
Further, described insulating barrier 2 is low smoke and zero halogen ceramic polyolefin layer or low smoke and zero halogen Ceramic silicon rubber layer.
Further, described core wrap is double-deck synthetic mica belt.
Further, described stranding lapping layer is the wrapped polyester belt of hierarchical overlay and synthetic mica belt.
Further, described TPU inner sheath 6 is hydrolysis type TPU sheath or flame retardant type TPU sheath.
Further, described fire-retardant oversheath 8 is the anticorrosion sheath of low smoke and zero halogen irradiation fire retardant polyolefin.
Dampproof fireproof cable of the present utility model has good protection against the tide, fire prevention and environmental protection characteristic, and compact conformation, and resistance to bend(ing) is good, lightweight and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of Dampproof fireproof cable of the present utility model, in figure: 1-molded line aluminium alloy conductor, it have employed combined by a circular molded line and six ladder-shapeds press lay configuration; 2-environmental protection insulating barrier; 3-is high temperature resistant lapping layer; 4-inflaming retarding high-temperature is filled; 5-aluminum plastic belt embossing indulges covering; 6-TPU inner sheath; 7-steel band embossing indulges covering; The fire-retardant oversheath of 8-.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 provides, further illustrate the embodiment of Dampproof fireproof cable of the present utility model.Dampproof fireproof cable of the present utility model is not limited to the description of following examples.
Dampproof fireproof cable of the present utility model shown in Fig. 1 is the embodiment of multicore cable.See Fig. 1, Dampproof fireproof cable of the present utility model comprises cable core, described cable core comprises molded line aluminium alloy conductor 1, and the environmental protection insulating barrier 2 wrapped in successively outside molded line aluminium alloy conductor 1 and high temperature resistant lapping layer 3, that is: first outside molded line aluminium alloy conductor 1, environmental protection insulating barrier 2 is extruded, then at the high temperature resistant lapping layer 3 of the outer wrapped cable core of environmental protection insulating barrier 2.Described cable core twisted synthesizing cable is also surrounded by the high temperature resistant lapping layer 3 of stranding from inside to outside successively, aluminum plastic belt embossing indulges covering 5, TPU inner sheath 6, steel band embossing indulges covering 7 and fire-retardant oversheath 8, be provided with inflaming retarding high-temperature between the high temperature resistant lapping layer 3 of cable core and the high temperature resistant lapping layer 3 of stranding and fill 4, that is: in cable core twisted synthesizing cable process, first at the outer wrapped high temperature resistant lapping layer 3 of cable core, then covering 5 is indulged at high temperature resistant lapping layer 3 outer embossing welding aluminum plastic belt embossing, indulge outside covering 5 at aluminum plastic belt embossing again and extrude TPU inner sheath 6, covering 7 is indulged again at TPU inner sheath 6 outer embossing welding steel band embossing, finally require to extrude fire-retardant oversheath 8 indulging at steel band embossing outside covering 7 according to cable environment for use, while wrapped high temperature resistant lapping layer 3, between the high temperature resistant lapping layer 3 and the high temperature resistant lapping layer 3 of stranding of cable core, be also between cable core and cable core, inflaming retarding high-temperature be set and fill 4.Dampproof fireproof cable of the present utility model not only has the characteristics such as good protection against the tide, fire prevention and environmental protection under normal conditions, and still has the security protection characteristic of effectively fire-resistant, water-fast and environmental protection when meeting fire or high temperature.
What the preferred employing of described molded line aluminium alloy conductor 1 was combined with the multiple ladder-shapeds be looped around outside circular molded line by a circular molded line at center presses lay configuration, as shown in Figure 1 combined by the circular molded line at center and six ladder-shapeds be looped around outside circular molded line press lay configuration, its advantage is: compact conformation, resistance to bend(ing) is good, press coefficient can by 0.9 bring up to 0.93 and more than, improve cross-sectional area of conductor effective rate of utilization, reduce the external diameter of conductor, reduce cost, there is economizing type characteristic.And cable is indulged bag aluminum plastic belt, steel band and is all carried out embossing process, increases its bending property.Should understand, because copper material has good twisting process performance, therefore the circular copper wire of employing multiply is stranded usually just can meet the requirement of pressing coefficient, but after " with aluminium for copper ", due to the twisting process poor-performing of aluminium, if therefore adopt multiply circular aluminum skein silk to close, be difficult to obtain and desirable press coefficient, and loosely organized, cross-sectional area of conductor utilance is low.
Described environmental protection insulating barrier 2 preferably adopts low smoke and zero halogen ceramic polyolefin layer or low smoke and zero halogen Ceramic silicon rubber layer, that is: outside molded line aluminium alloy conductor 1, extrude low smoke and zero halogen ceramic polyolefin insulation, or extrudes the insulation of low smoke and zero halogen Ceramic silicon rubber.The advantage of this structure is: have desirable fire prevention and environmental-protecting performance, when cable is in hot environment for a long time, time even under the environment that naked light is burned, low smoke and zero halogen Ceramic silicon rubber or low smoke and zero halogen ceramic polyolefine material, capital Yin Gaowen and insulation porcelain, thus form hard shell to protect conductor, and form new insulating barrier; No matter under normal conditions still in high temperature environments, or in insulation porcelain process, they all can not discharge pernicious gas in air, very environmental protection.
Described high temperature resistant lapping layer 3 adopts synthetic mica belt, and/or high temperature resistant reinforcement polyester belt.Lapping layer 3 as cable core is double-deck synthetic mica belt, at the outer wrapped double-deck synthetic mica tape of hierarchical overlay of the low smoke and zero halogen ceramic polyolefin layer of cable core; Lapping layer 3 as stranding is the wrapped polyester belt of hierarchical overlay and synthetic mica belt, at the outer high temperature resistant reinforcement polyester belt of the wrapped one deck of hierarchical overlay of cable core and one deck synthetic mica tape.Obviously, because synthetic mica tape and high temperature resistant reinforcement polyester belt all have the characteristic of high-temperature flame-proof, therefore this structure effectively can improve the globality in the fire stability of cable and high temperature, pyrotechnics.
Be understood that, outside the high temperature resistant lapping layer 3 of cable core, adopt the vertical bag welding of aluminium-plastic tape embossing, then indulge outside covering 5 extruding one deck TPU sheath continuously, to form good moistureproof isolation layer at aluminium-plastic tape embossing.Described TPU inner sheath 6 adopts thermoplastic polyurethane to extrude structure, because thermoplastic polyurethane has good elasticity and resistance to wear, therefore has good sealing with the structure sheaf that extrudes that its is formed, and particularly it is also easy to realize hydrolysis and fire-retardant.Therefore, hydrolysis type TPU sheath is preferably adopted, to promote the water-fast anti-moisture performance of cable further; And/or described TPU inner sheath 6 adopts flame retardant type TPU sheath, to promote the fire-resistant fire protecting performance of cable further.The vertical bag one deck steel band (steel band embossing indulges covering 7) of the line that rerolls welding, to form fireprotection layer, plays simultaneously and also has good protective effect to cable core, and the elasticity of TPU inner sheath 6 also has the function alleviated the impact failure of cable core.
Described fire-retardant oversheath 8 preferably adopts the anticorrosion sheath of low smoke and zero halogen irradiation fire retardant polyolefin.Indulge outside covering 7 at steel band embossing and extrude one deck low smoke and zero halogen irradiation fire retardant polyolefin anticorrosive coat as fire-retardant oversheath 8, steel band and external environment condition are separated, to play anti-oxidation and external force to the cushioning effect of cable, in addition, adopt flame retardant polyolefine material, can not environmental pollution be increased, release pernicious gas and flue dust can not be thought at high temperature, fire conditions.In addition, allow in flame retardant polyolefine material to add a small amount of termite-resistant rodent-resistant repellent agent, with the termite-resistant rodent-resistant function of expansion cable.
Be more than the embodiment of a multicore cable of Dampproof fireproof cable of the present utility model, certainly, Dampproof fireproof cable of the present utility model also can be single-core cable.Can not imagine shown in composition graphs 1, in the embodiment (not shown) of single-core cable, Dampproof fireproof cable of the present utility model, it comprises molded line aluminium alloy conductor 1, and the insulating barrier 2 wrapped in successively outside molded line aluminium alloy conductor 1 and high temperature resistant lapping layer 3, aluminum plastic belt embossing indulge covering 5, TPU inner sheath 6, steel band embossing indulge covering 7 and fire-retardant oversheath 8.Compared with the embodiment of multicore cable, in the embodiment of single-core cable, namely default one deck environmental protection insulating barrier 2 is kept to one deck environmental protection insulating barrier 2 by original two-layer environmental protection insulating barrier 2, and simultaneously also default inflaming retarding high-temperature fills 4.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a Dampproof fireproof cable, comprises cable core, it is characterized in that: described cable core comprises molded line aluminium alloy conductor (1), and wraps in molded line aluminium alloy conductor (1) insulating barrier outward (2) and core wrap successively; Described cable core twisted synthesizing cable and be surrounded by stranding lapping layer from inside to outside successively, aluminum plastic belt embossing indulges covering (5), TPU inner sheath (6) and steel band embossing indulge covering (7), be provided with inflaming retarding high-temperature between core wrap and stranding lapping layer and fill (4).
2. Dampproof fireproof cable according to claim 1, is characterized in that: indulge covering (7) at steel band embossing and be also provided with fire-retardant oversheath (8) outward.
3. Dampproof fireproof cable according to claim 1, is characterized in that: what described molded line aluminium alloy conductor (1) employing was combined with the multiple ladder-shapeds be looped around outside circular molded line by a circular molded line at center presses lay configuration.
4. Dampproof fireproof cable according to claim 1, is characterized in that: what described molded line aluminium alloy conductor (1) employing was combined with six ladder-shapeds be looped around outside circular molded line by a circular molded line at center presses lay configuration.
5. Dampproof fireproof cable according to claim 1 and 2, is characterized in that: comprise three cable cores, wrapped stranding lapping layer after three cable core dextrad twisted synthesizing cables.
6. Dampproof fireproof cable according to claim 1, is characterized in that: described insulating barrier (2) is low smoke and zero halogen ceramic polyolefin layer or low smoke and zero halogen Ceramic silicon rubber layer.
7. Dampproof fireproof cable according to claim 1, is characterized in that: described core wrap is double-deck synthetic mica belt.
8. Dampproof fireproof cable according to claim 1, is characterized in that: described stranding lapping layer is the wrapped polyester belt of hierarchical overlay and synthetic mica belt.
9. Dampproof fireproof cable according to claim 1, is characterized in that: described TPU inner sheath (6) is hydrolysis type TPU sheath or flame retardant type TPU sheath.
10. Dampproof fireproof cable according to claim 1, is characterized in that: described fire-retardant oversheath (8) is the anticorrosion sheath of low smoke and zero halogen irradiation fire retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566551.4U CN204792049U (en) | 2015-07-31 | 2015-07-31 | Novel dampproofing fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566551.4U CN204792049U (en) | 2015-07-31 | 2015-07-31 | Novel dampproofing fireproof cable |
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| Publication Number | Publication Date |
|---|---|
| CN204792049U true CN204792049U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520566551.4U Expired - Fee Related CN204792049U (en) | 2015-07-31 | 2015-07-31 | Novel dampproofing fireproof cable |
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| Country | Link |
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| CN (1) | CN204792049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971782A (en) * | 2017-04-10 | 2017-07-21 | 泰州日顺电器发展有限公司 | Hydrolysis fire resistant electric wire and preparation method thereof |
-
2015
- 2015-07-31 CN CN201520566551.4U patent/CN204792049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971782A (en) * | 2017-04-10 | 2017-07-21 | 泰州日顺电器发展有限公司 | Hydrolysis fire resistant electric wire and preparation method 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: 20151118 Termination date: 20200731 |