基于输电杆塔用复合材料对力学性能、绝缘性能以及耐候性的要求，研究了架空输电杆塔用环氧树脂复合材料的电气绝缘性能，分析其在浸水、盐水煮沸和漏电起痕等试验条件下的电气绝缘性能变化情况。结果表明：在浸水试验后，环氧树脂复合材料的介质损耗因数略有增大，电阻率仅下降一个数量级；在盐水中煮沸后其泄漏电流没有明显增大；复合材料具有优良的憎水性能，但憎水迁移特性较差；与绝缘涂层结合可经受3.5级的耐漏电起痕烧蚀，复合材料切片的电气强度达到25.3 MV/m(厚度1 mm)和19.6 MV/m(厚度2 mm)，可以满足架空输电杆塔材料对绝缘性能面的要求。
Based on the requirements of composite material applied in transmission tower on the mechanical properties, insulating properties and weather fastness, the electrical insulating properties of epoxy resin composite material applied in overhead transmission tower were studied, and the changes of electrical insulating properties of the composite material under the experimental conditions of soaking, boiling in saline water and tracking were investigated. The results show that after soaking treatment, the dielectric loss of the epoxy resin composite material increases slightly, and the resistivity decreases by an order of magnitude only. The leakage current of the composite material after boiling in saline water increases obviously. The composite material has good hydrophobicity, but the migration of hydrophobicity is poor. When combined with insulating coating, the composite material can withstand tracking resistance of grade 3.5. The dielectric strength of the composite material slices can achieve 25.3 MV/m (1 mm thick) and 19.6 MV/m(2 mm thick), which satisfy the requirements of the material applied in overhead transmission tower on the insulating properties.
参考文献
| [1] | 夏开全.复合材料在输电杆塔中的研究与应用[J].高科技纤维与应用,2005(05):19-23. |
| [2] | 刘泉,任宗栋,默增禄.复合材料在输电杆塔中的应用研究[J].玻璃钢/复合材料,2012(01):53-56. |
| [3] | 熊淦辉,刘江钒,林锋,潘吉林.电力输送用复合材料杆塔发展现状[J].绝缘材料,2013(04):82-85. |
| [4] | 邓世聪,刘庭,李汉明,魏前虎,胡广生,刘凯,肖宾.110kV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(03):36-40. |
| [5] | 杨敏祥,陈原,李卫国,卢毅,代建国,赵雪松.复合材料杆塔研究现状及关键技术问题[J].华北电力技术,2010(10):48-50. |
| [6] | 徐任信,鲁学林,单云刚,王钧.AlN/低粘度环氧树脂复合材料的性能研究[J].国外建材科技,2008(03):1-3. |
| [7] | 徐曼,曹晓珑,俞秉莉.纳米SiO2/环氧树脂复合体系性能研究--（Ⅰ）复合材料的制备及绝缘特性[J].高分子材料科学与工程,2005(01):153-155,159. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%