利用疏水涂层提高复合材料杆塔防污性能的研究
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摘要
为解决输电杆塔用复合材料表面憎水性不足、受污后其绝缘性能在潮湿状态下大幅下降的问题,采用6种不同超疏水涂料分别涂覆复合材料杆塔样品表面,并测试其憎水性,筛选出改善效果较好的3种超疏水涂料。然后将这3种超疏水涂料涂覆于复合材料杆塔样品上进行湿闪和污闪试验,全面分析了杆塔样品形状、疏水涂层制备方法、超疏水涂料类型对复合材料杆塔防污能力的影响。结果表明:疏水涂层能显著提高复合材料杆塔样品的湿闪电压和污闪电压,其中PRTV的应用效果最好,能有效降低污闪率。
In order to solve the problem of poor hydrophobicity of composite material for transmission tower, which would make its insulating properties decreasing significantly in wet state after being polluted, the composite tower samples were coated with six super-hydrophobic coatings, and their hydrophobicity were tested, then three coatings with good improvement effect were selected out. The composite tower samples coated with the three coatings were conducted wet flashover and pollution flashover tests. The effects of sample shape, preparation methods and types of super-hydrophobic coatings on the antifouling property of the composite tower samples were analyzed. The results show that the hydrophobic coatings can increase the wet and pollution flashover voltages, and the sample coated with PRTV coating has the best application effect, which can reduce the pollution flashover rate effectively.
In order to solve the problem of poor hydrophobicity of composite material for transmission tower, which would make its insulating properties decreasing significantly in wet state after being polluted, the composite tower samples were coated with six super-hydrophobic coatings, and their hydrophobicity were tested, then three coatings with good improvement effect were selected out. The composite tower samples coated with the three coatings were conducted wet flashover and pollution flashover tests. The effects of sample shape, preparation methods and types of super-hydrophobic coatings on the antifouling property of the composite tower samples were analyzed. The results show that the hydrophobic coatings can increase the wet and pollution flashover voltages, and the sample coated with PRTV coating has the best application effect, which can reduce the pollution flashover rate effectively.
引文
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[19]蒋兴良,陈爱军,张志劲,等.盐密和灰密对110k V复合绝缘子闪络电压的影响[J].中国电机工程学报,2006,26(9):150-154.
[2]Hollaway L C.A Review of the Present and Future Utilisation of FRP Composites in the Civil Infrastructure with Reference to Their Important In-service Properties[J].Construction and Building Materials,2010,24(12):2419-2445.
[3]Stewart R.Rebounding Automotive Industry Welcome News for FRP[J].Reinforced Plastics,2011,55(1):38-44.
[4]Kumar V S,Vasa N J,Sarathi R,et al.Understanding the Discharge Activity Across GFRP Material Due to Salt Deposit under Transient Voltages by Adopting OES and LIBS Technique[J].IEEE Transactions on Dielectrics and Electrical Insulation,2014,21(5):2283-2292.
[5]Miller M F,Hosford G S,Boozer III J F.Fiberglass Distribution Poles-a Case Study[J].IEEE Transactions on Power Delivery,1995,10(1):497-503.
[6]Stewart R.Pultruded Poles Carry Power[J].Reinforced Plastic,2003(1):20-24.
[7]Ibrahim S,Polyzois D,Hassan S K.Development of Glass Fiber Reinforced Plastic Poles for Transmission and Distribution Lines[J].Canadian Journal of Civil Engineering,2000,27(5):850-858.
[8]熊淦辉,刘江钒,林锋,等.电力输送用复合材料杆塔发展现状[J].绝缘材料,2013,46(4):82-85.
[9]黄成才,李永刚,张志猛,等.复合绝缘子闪络后的材料特性分析[J].绝缘材料,2014,47(4):53-56.
[10]张磊,孙清,赵雪灵,等.纤维增强树脂基复合材料输电杆塔材料选型[J].电力建设,2011,32(2):1-5.
[11]Li H,Deng S,Wei Q,et al.Research on Composite Material Towers Used in 110k V Overhead Transmission Lines[C]//International Conference on High Voltage Engineering and Application,New Orleans,2010:572-575.
[12]邓世聪,刘庭,李汉明,等.110k V架空输电线路复合材料杆塔的材料、电气和机械特性试验[J].南方电网技术,2011,5(3):36-40.
[13]王天,卢明,景冬冬,等.RTV防污闪涂层老化分析方法[J].绝缘材料,2014,47(1):26-30.
[14]Rowland S M,Robertson J,Xiong Y,et al.Electrical and Material Characterization of Field-aged 400k V Silicone Rubber Composite Insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,2010,17(2):375-383.
[15]徐志钮,律方成,张翰韬,等.影响硅橡胶静态接触角测量结果的相关因素分析[J].高电压技术,2012,38(1):147-156.
[16]GB/T 4585—2004,交流系统用高压绝缘子的人工污秽试验[S].
[17]GB/T 775.2—2003,绝缘子试验方法第2部分:电气试验方法[S].
[18]Q/GDW 152—2006,电力系统污区分级与外绝缘选择标准[S].
[19]蒋兴良,陈爱军,张志劲,等.盐密和灰密对110k V复合绝缘子闪络电压的影响[J].中国电机工程学报,2006,26(9):150-154.