Study on Fire and Explosion Proof Performances of Graphite-based Flexible Material for Cable Intermediate Joint
-
摘要: 受自身质量和外部因素影响,电缆短路事件频繁发生,对此,研究电缆中间接头用石墨基柔性材料的防火防爆性能十分必要。选择实验仪器、石墨基柔性材料、普通树脂基复合材料和添加7%红磷成碳剂的树脂基复合材料,结合柔性综合防护装置技术参数,建立材料性能测试方法。通过提取材料结构表征,研究石墨基柔性材料对电缆释放性能的影响,燃烧时间对材料防火性能的影响,以及不同负荷对材料防爆性能的影响。结果表明:石墨基柔性材料能够约束电缆的热释放和有害气体释放,在短时间内的防火测试中,材料残碳率比其他两组对照材料高了7.03%和20.86%;该材料能够将电缆载流量约束在合理范围内,保证供电的同时,延缓爆炸发生,可见该材料有更好的防火防爆性能。Abstract: Affected by its own quality and external factors, cable short-circuit events occur frequently, so it is necessary to study the fire and explosion proof performances of graphite-based flexible material for cable intermediate joint. Based on the technical parameters of the flexible comprehensive protection device, the test method for material properties is established with experimental instruments, graphite-based flexible materials, ordinary resin-based composites and resin-based composites with 7% red phosphorus carbon forming agent. The influences of graphite-based flexible material on cable release performance, combustion time on material fire proof performance and different loads on material explosion-proof performances are studied by extracting material structure characterization. The results show that the graphite-based flexible material can restrain the heat release and harmful gas release of the cable, and that in the short time fire test, the carbon residue rate of the material is 7.03% and 20.86% higher than those of the other two control materials. The material can restrict the current carrying capacity of the cable within a reasonable range, ensure power supply and postpone the occurrence of explosion, meaning it has good fire and explosion proof performances.
-
-
[1] 刘力,周凯,陈玉豪,等.XLPE中压电缆中间接头的界面老化修复研究[J].绝缘材料,2019,52(6):55-59. [2] 王泽刚,王福吉,卢晓红,等.考虑左旋切削刃切削连续性的碳纤维增强树脂基复合材料铣削研究[J].中国机械工程,2020,31(8):991-996. [3] 向东,刘家良,赵春霞,等.基于插层法协同提升碳纤维树脂基复合材料的导电性能与层间韧性[J].复合材料学报,2022,39(1):134-146. [4] 夏军,潘秀宝,黄道春,等.扩径石墨基柔性接地材料接地性能及其实际工程应用[J].电瓷避雷器,2019(5):9-14,20. [5] 武思蕊,李斌,李覃,等.石墨烯基柔性薄膜复合材料及其功能化的研究进展[J].高分子材料科学与工程,2019,35(1):176-182. [6] 赵雅婧,谢亮,马兰超,等.聚二甲基硅氧烷封装石墨烯基柔性红外探测器的制备及其应用[J].化学学报,2020,78(2):161-169. [7] 姚梦瑶,赵昕,陈耀燕,等.石墨烯基柔性一维电极材料的的制备与性能研究[J].功能材料,2020,51(8):8111-8116. [8] 白日昌,惠飞,刘惠婧,等.利用单体燃烧试验(SBI)分析材料密度对高阻燃镁基复合防火保温燃烧性能的影响[J].河南建材,2020(7):28-29. [9] 张国锋,曾杰,胡松江,等.温度对防雷接地用石墨玻纤复合材料性能的影响[J].化工新型材料,2020,48(4):125-128,135. [10] 刘艳君,翟媛媛,赵瑞,等.针织物基石墨烯/MnO2柔性复合电极材料的制备及性能[J].印染,2020,46(12):8-13.
计量
- 文章访问数: 187
- HTML全文浏览量: 118
- PDF下载量: 10
下载:
