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首页> 美国政府科技报告 >Concept for the Intrinsic Dielectric Strength of Electrical Insulation Materials
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Concept for the Intrinsic Dielectric Strength of Electrical Insulation Materials

机译：电绝缘材料固有介电强度的概念

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A concept is described for a possible definition of the intrinsic dielectric strength of insulating materials, which can be considered as a fundamental material property similar to other material properties, such as Young's modulus, index of refraction, and expansion coefficients. The events leading to the recognition of this property are reported, and the property is defined. This intrinsic dielectric strength concept should facilitate interpretation of results from accelerated and/or natural aging programs intended to predict electrical insulation service life of encapsulants in photovoltaic modules. As a practical application, this new concept enabled a possible explanation of the cause of failures in buried high-voltage cables with polyethylene insulation, and a possible explanation of the causes of electrical trees in polyethylene; these also are described. (ERA citation 10:036333)

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