This paper presents a comparative evaluation of high temperature vulcanizing (HTV) silicone rubber consisting of ATH and silica fillers for use as the housing of outdoor composite insulators. Various volume filler fractions (vol%) of alumina trihydrate (ATH) and silica (SiO 2 ) and several median particle sizes are incorporated into HTV silicone rubber and evaluated for erosion and tracking resistances using the inclined-plane tracking and erosion tests (IPT), in accordance with IEC 60587 at several AC test voltages. Test durations, eroded masses, erosion depths, and leakage currents are reported. The dry-band arcing temperatures of the various samples are recorded during the tests. The results show that at 30 vol% filler fractions, ATH filled samples show lower erosion than the corresponding silica filled samples; however, at 15 vol% fraction, the silica filled samples show lower erosion. For most tested conditions, the maximum dry-band temperatures of the silica filled samples are lower than the corresponding ATH filled samples.

中文翻译：

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复合绝缘子用HTV硅橡胶TH与二氧化硅填料的性能比较


本文对由 ATH 和二氧化硅填料组成的高温硫化 (HTV) 硅橡胶用作户外复合绝缘子外壳进行了比较评估。将各种体积填料分数 (vol%) 的三水合氧化铝 (ATH) 和二氧化硅 (SiO 2 ) 以及几种中值粒径纳入 HTV 硅橡胶中，并使用斜面漏电起痕和侵蚀测试 (IPT) 评估其耐侵蚀性和耐漏电起痕性，符合 IEC 60587 标准，在多个交流测试电压下。报告测试持续时间、侵蚀质量、侵蚀深度和泄漏电流。在测试期间记录各种样品的干带电弧温度。结果表明，在 30 vol% 填料分数下，ATH 填充样品的侵蚀性低于相应的二氧化硅填充样品；然而，在 15 vol% 比例下，二氧化硅填充样品显示出较低的侵蚀。对于大多数测试条件，二氧化硅填充样品的最大干带温度低于相应的 ATH 填充样品。