CN202171970U - Low-smoke halogen-free flame retardant fireproof cable used in urban railway system - Google Patents
Low-smoke halogen-free flame retardant fireproof cable used in urban railway system Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 30
- 239000000779 smoke Substances 0.000 title claims abstract description 27
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 31
- 239000003365 glass fiber Substances 0.000 claims abstract description 30
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 20
- -1 halogen-free Substances 0.000 claims abstract description 14
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 8
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 8
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 7
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000012764 mineral filler Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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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
本实用新型公开了一种城市轨道交通用低烟无卤阻燃耐火电缆，包括至少为两根的紧压导体，包覆紧压导体表面的耐火层，包覆耐火层表面的绝缘层，设于绝缘层外的阻水层，设于阻水层外的护套；其中紧压导体经铜单线同心绞合后紧压成型，耐火层由依次绕包在紧压导体上的合成云母带、玻纤带组成，绝缘层由挤包的交联聚乙烯构成，阻水层由挤包的高密度聚乙烯构成，护套由无卤低烟阻燃聚烯烃挤包而成。本实用新型具有高阻燃、高耐火、低烟无卤、径向阻水等特性，弥补了同类电缆阻燃、耐火等级偏低和缺乏阻水防护的不足，特别适合城市轨道使用。本实用新型阻燃、耐火性能分别达到GB19666-2005、GA306-2007规定的A类要求。
The utility model discloses a low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit, which comprises at least two compacted conductors, a fire-resistant layer covering the surface of the compacted conductor, and an insulating layer covering the surface of the fire-resistant layer. The water-blocking layer outside the insulating layer is set on the sheath outside the water-blocking layer; the compacted conductor is concentrically stranded by copper single wires and then compacted, and the refractory layer is composed of synthetic mica tapes wrapped on the compacted conductor in turn, It is composed of glass fiber tape, the insulating layer is composed of extruded cross-linked polyethylene, the water blocking layer is composed of extruded high-density polyethylene, and the sheath is composed of extruded halogen-free low-smoke flame-retardant polyolefin. The utility model has the characteristics of high flame retardancy, high fire resistance, low smoke, halogen-free, radial water blocking, etc., which makes up for the shortcomings of similar cables in flame retardancy, low fire resistance level and lack of water blocking protection, and is especially suitable for urban rail use. The flame-retardant and fire-resistant properties of the utility model respectively meet the Class A requirements stipulated in GB19666-2005 and GA306-2007.
Description
技术领域 technical field
本实用新型属于一种电力传输电缆，特别涉及一种城市轨道用交通低烟无卤阻燃耐火电缆。 The utility model belongs to a power transmission cable, in particular to a low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail traffic.
背景技术 Background technique
随着城市化进程的加快，城市交通问题越发严重，发展大容量、环保、节能的轨道交通已成为很多城市的首选。作为城市轨道交通电力输送系统的重要组成部分，城市轨道交通用电力电缆主要应用于轨道交通沿线、隧道、涵洞、车站等人员密集、环境封闭的场合。 With the acceleration of urbanization, urban traffic problems are becoming more and more serious. The development of large-capacity, environmentally friendly, and energy-saving rail transit has become the first choice for many cities. As an important part of the power transmission system of urban rail transit, power cables for urban rail transit are mainly used in densely populated and closed environments such as along rail transit, tunnels, culverts, and stations.
根据城市轨道交通的特点，其应用的电缆应当具有阻燃性能、耐火性能、无卤低烟等特性。目前国内同类电缆大多采用普通阻燃耐火电缆设计，阻燃、耐火等级偏低，而且未设计阻水结构。 According to the characteristics of urban rail transit, the cables used should have the characteristics of flame retardancy, fire resistance, halogen-free and low smoke. At present, most of the domestic similar cables are designed with ordinary flame-retardant and fire-resistant cables, with low flame-retardant and fire-resistant grades, and no water-blocking structure is designed.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是提供一种高防水性、高阻燃性能、高耐火性能、无卤低烟的城市轨道交通用低烟无卤阻燃耐火电缆。 The technical problem to be solved by the utility model is to provide a low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit with high water resistance, high flame-retardant performance, high fire-resistant performance, halogen-free and low-smoke.
为解决如上技术问题，本实用新型提出如下技术方案： In order to solve the above technical problems, the utility model proposes the following technical solutions:
城市轨道交通用低烟无卤阻燃耐火电缆，包括至少为两根的紧压导体，包覆紧压导体表面的耐火层，包覆耐火层表面的绝缘层，设于绝缘层外的阻水层，设于阻水层外的护套； Low-smoke, halogen-free, flame-retardant and refractory cables for urban rail transit, including at least two compacted conductors, a refractory layer covering the surface of the compacted conductors, an insulating layer covering the surface of the refractory layer, and a water-blocking layer outside the insulating layer. Layer, the sheath outside the water-blocking layer;
其中紧压导体经是由铜单线同心绞合后紧压成型的，耐火层由依次绕包在紧压导体上的合成云母带、玻纤带组成，绝缘层由挤包的交联聚乙烯构成，阻水层由挤包的高密度聚乙烯构成，护套由无卤低烟阻燃聚烯烃挤包而成。 Among them, the compact conductor is formed by concentric twisting of copper single wires, and the refractory layer is composed of synthetic mica tape and glass fiber tape wrapped on the compact conductor in turn, and the insulating layer is composed of extruded cross-linked polyethylene. , the water blocking layer is made of extruded high-density polyethylene, and the sheath is made of extruded halogen-free low-smoke flame-retardant polyolefin.
进一步，还包括另设于阻水层内侧的玻纤带层，以及填充在绝缘层和绝缘层、绝缘层和玻纤带层之间的矿物填充料，且玻纤带层由绕包在矿物填充料外的玻纤带构成。 Further, it also includes a glass fiber tape layer arranged inside the water blocking layer, and a mineral filler filled between the insulating layer and the insulating layer, the insulating layer and the glass fiber tape layer, and the glass fiber tape layer is wrapped in mineral It is composed of glass fiber tape outside the filler.
进一步，还包括设于阻水层与护套之间的铠装层，该铠装层由绕包的钢带构成。 Further, it also includes an armoring layer arranged between the water blocking layer and the sheath, and the armoring layer is composed of wrapped steel strips.
本实用新型城市轨道交通用低烟无卤阻燃耐火电缆采用紧压导体，减小了导体间隙，起到一定纵向阻水作用；耐火层由依次绕包在紧压导体上的合成云母带、玻纤带组成，合成云母带电阻率高、耐热温度可达1000℃，玻纤带遇火分解成金属氧化物和析出结晶水，并在燃烧过程中形成碳化结构，隔绝空气而起到阻燃作用。在950～1000℃高温下，耐火层可在一定时间内起到绝缘作用，保证线路正常运行；矿物填充料和玻纤带层形成填充和绕包，其具有较高分解温度和绝热性，与护套协同作用，提高了阻燃性能；高密度聚乙烯作为阻水层有效的弥补了无卤低烟阻燃聚烯烃护套在防水性能方面的不足，提高了电缆的径向防水性能；采用无卤低烟阻燃聚烯烃的护套在满足了电缆在低烟、低毒等环保方面要求的同时，也保证了良好的阻燃性能。 The low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the utility model adopts a compact conductor, which reduces the conductor gap and plays a certain role in longitudinal water resistance; the fire-resistant layer is composed of synthetic mica tape, Composed of glass fiber tape, the synthetic mica tape has high resistivity and a heat-resistant temperature of up to 1000°C. The glass fiber tape decomposes into metal oxides and precipitates crystal water when it encounters fire, and forms a carbonized structure during the combustion process to isolate air and act as a barrier. combustion effect. At a high temperature of 950-1000°C, the refractory layer can play an insulating role for a certain period of time to ensure the normal operation of the line; mineral fillers and glass fiber tape layers form filling and wrapping, which has a high decomposition temperature and thermal insulation, and The synergistic effect of the sheath improves the flame-retardant performance; high-density polyethylene as a water-blocking layer effectively makes up for the lack of waterproof performance of the halogen-free low-smoke flame-retardant polyolefin sheath, and improves the radial waterproof performance of the cable; The sheath of halogen-free low-smoke flame-retardant polyolefin not only meets the environmental protection requirements of cables such as low smoke and low toxicity, but also ensures good flame-retardant performance.
下面具体结合实施例和附图对本实用新型作进一步的说明。 Below in conjunction with embodiment and accompanying drawing, the utility model is further described.
附图说明 Description of drawings
图1是本实用新型城市轨道交通用低烟无卤阻燃耐火电缆的第一种实施例的结构示意图。 Fig. 1 is a schematic structural view of the first embodiment of the low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention.
图2是本实用新型城市轨道交通用低烟无卤阻燃耐火电缆的第二种实施例的结构示意图。 Fig. 2 is a structural schematic diagram of a second embodiment of a low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention.
图3是本实用新型城市轨道交通用低烟无卤阻燃耐火电缆的第三种实施例的结构示意图。 Fig. 3 is a structural schematic diagram of a third embodiment of a low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention.
图中：1为紧压导体；2为耐火层；3为绝缘层；4为矿物填充料，5为玻纤带层， 6为阻水层；7为铠装层；8为护套。 In the figure: 1 is the compact conductor; 2 is the refractory layer; 3 is the insulating layer; 4 is the mineral filler, 5 is the glass fiber tape layer, 6 is the water blocking layer; 7 is the armor layer; 8 is the sheath.
具体实施方式 Detailed ways
实施例一 Embodiment one
如图1所示，本实用新型城市轨道交通用低烟无卤阻燃耐火电缆，包括两根紧压导体1，包覆紧压导体1表面的耐火层2，包覆耐火层2表面的绝缘层3，设于绝缘层3外的阻水层6，设于阻水层6外的护套8；
As shown in Figure 1, the low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention includes two compacted
其中紧压导体1经铜单线同心绞合后紧压成型，耐火层2由依次绕包在紧压导体1上的合成云母带、玻纤带组成，绝缘层3由挤包的交联聚乙烯构成，阻水层6由挤包的高密度聚乙烯构成，护套8由无卤低烟阻燃聚烯烃挤包而成。
Among them, the
另外阻水层6与护套8之间的还设有铠装层7，该铠装层7由绕包的钢带构成。
In addition, an
阻水层6内侧还设有玻纤带层5，以及填充在绝缘层3和玻纤带层5之间的矿物填充料4，且玻纤带层5由绕包在矿物填充料4外的玻纤带构成。
The inner side of the water-blocking
另外阻水层6与护套8之间的还设有铠装层7，该铠装层7由绕包的钢带构成。
In addition, an
实施例二 Embodiment two
如图2所示，本实用新型城市轨道交通用低烟无卤阻燃耐火电缆，包括五根紧压导体1，包覆紧压导体1表面的耐火层2，包覆耐火层2表面的绝缘层3，设于绝缘层3外的阻水层6，设于阻水层6外的护套8；
As shown in Figure 2, the low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention includes five compacted
其中紧压导体1经铜单线同心绞合后紧压成型，耐火层2由依次绕包在紧压导体1上的合成云母带、玻纤带组成，绝缘层3由挤包的交联聚乙烯构成，阻水层6由挤包的高密度聚乙烯构成，护套8由无卤低烟阻燃聚烯烃挤包而成。
Among them, the
阻水层6内侧还设有玻纤带层5，以及填充在绝缘层3和绝缘层3、绝缘层3和玻纤带层5之间的矿物填充料4，且玻纤带层5由绕包在矿物填充料4外的玻纤带构成。
The inner side of the
实施例三 Embodiment Three
如图2所示，本实用新型城市轨道交通用低烟无卤阻燃耐火电缆，包括三根紧压导体1，包覆紧压导体1表面的耐火层2，包覆耐火层2表面的绝缘层3，设于绝缘层3外的阻水层6，设于阻水层6外的护套8；
As shown in Figure 2, the low-smoke, halogen-free, flame-retardant and fire-resistant cable for urban rail transit of the present invention includes three
其中紧压导体1是由铜单线绞合紧压制成的紧压导体1，耐火层2由依次绕包在紧压导体1上的合成云母带、玻纤带组成，绝缘层3由挤包的交联聚乙烯构成，阻水层6由挤包的高密度聚乙烯构成，护套8由无卤低烟阻燃聚烯烃挤包而成。
The
阻水层6内侧还设有玻纤带层5，以及填充在绝缘层3和绝缘层3、绝缘层3和玻纤带层5之间的矿物填充料4，且玻纤带层5由绕包在矿物填充料4外的玻纤带构成。
The inner side of the
另外阻水层6与护套8之间的还设有铠装层7，该铠装层7由绕包的钢带构成。
In addition, an
制作时，先在叉绞机上进行导体绞合并紧压，使导体的填充系数≥85%。紧压导体1上依次绕包合成云母带和玻纤带，然后再挤包绝缘。在挤包交联聚乙烯绝缘时，采用二步交联法对绝缘层3进行交联，通过二步交联法获得的交联聚乙烯绝缘层3，不但有优异的电性能、耐温差性、耐化学腐蚀性，而且拥有更长的使用寿命。
During production, the conductors are twisted and compacted on the fork winch first, so that the filling factor of the conductors is ≥ 85%. A synthetic mica tape and a glass fiber tape are sequentially wrapped on the compacted
本实用新型的耐火性能达到GA 306-2007 规定A类要求，阻燃性能达到GB 19666-2005规定A类要求。 The fire-resistant performance of the utility model meets the requirements of Class A stipulated in GA 306-2007, and the flame-retardant performance meets the requirements of Class A stipulated in GB 19666-2005.
对于本领域的技术人员来说，在不脱离本实用新型结构的前提下，还可以作出若干变形和改进，如矿物填充料4选用石棉绳，这些也应该视为本实用新型的保护范围，这些都不会影响本实用新型实施的效果和专利的实用性。
For those skilled in the art, under the premise of not departing from the structure of the present utility model, some deformations and improvements can also be made, such as
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| US20130180755A1 (en) * | 2011-12-20 | 2013-07-18 | Ls Cable & System Ltd. | Electric cable for nuclear power plant easy to monitor condition and fabrication method thereof |
| CN103646714A (en) * | 2013-11-29 | 2014-03-19 | 四川鑫电电缆有限公司 | A medium-voltage fiber composite cable |
| CN103871656A (en) * | 2014-03-26 | 2014-06-18 | 江苏荣宜电缆有限公司 | Novel insulating fire-proof power cable |
| CN104252905A (en) * | 2013-06-29 | 2014-12-31 | 沈阳岳阳电缆有限公司 | Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable |
| CN106856108A (en) * | 2015-12-09 | 2017-06-16 | 无锡市华美电缆有限公司 | A kind of fire-fighting system low smoke, zero halogen cable |
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2011
- 2011-07-29 CN CN201120273683XU patent/CN202171970U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130180755A1 (en) * | 2011-12-20 | 2013-07-18 | Ls Cable & System Ltd. | Electric cable for nuclear power plant easy to monitor condition and fabrication method thereof |
| CN104252905A (en) * | 2013-06-29 | 2014-12-31 | 沈阳岳阳电缆有限公司 | Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable |
| CN103646714A (en) * | 2013-11-29 | 2014-03-19 | 四川鑫电电缆有限公司 | A medium-voltage fiber composite cable |
| CN103871656A (en) * | 2014-03-26 | 2014-06-18 | 江苏荣宜电缆有限公司 | Novel insulating fire-proof power cable |
| CN106856108A (en) * | 2015-12-09 | 2017-06-16 | 无锡市华美电缆有限公司 | A kind of fire-fighting system low smoke, zero halogen cable |
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