绝缘件的性能要求 Performance requirements of insulation parts 　　(1)电气性能：环氧绝缘件的主要性能是它的绝缘特性又叫介电特性，介电性能的考核主要针对两方面：一方面对材料的考核，材料本身的质量、配方、固化程度;另一方面是对制品的考核，制品的设计和制造质量。 (1) electrical performance: epoxy insulating parts are the main performance of its insulating properties and dielectric properties, dielectric performance evaluation focuses on two aspects: on the one hand, the appraisal of the material, the quality, formula and curing degree of the material itself; On the other hand, it is the inspection of the products, the design of the products and the manufacturing quality. 　　a、介电强度：在规定的试验条件下，绝缘发生击穿是、时的电压与击穿处的绝缘厚度的比值，原来叫击穿强度，单位是kV/mm. A, dielectric strength: in the experimental conditions, the insulation breakdown is, when the voltage and the ratio of the breakdown of the insulation thickness, originally called breakdown strength, unit is kV/mm. 　　b、绝缘电阻：在规定条件下，处于导体之间或导体和接地点之间的绝缘材料的电阻。 B, insulation resistance: the resistance of insulation material between conductors or conductors and places under specified conditions. 　　c、额定短时工频耐受电压：在绝缘件实际应用的两极间施加一定的工频耐压，使产品在这一特定电压下保持一段规定的时间，绝缘件不应发生击穿、闪络; C, rated short-time power frequency withstand voltage: practical application on insulation between the poles of the applied power frequency withstand voltage, make the products in this specific and has a period of time prescribed by the voltage insulation breakdown, flashover thing should not happen; 　　d、额定雷电冲击耐受电压 ：在绝缘件实际应用的两极间能够承受规定次数的正负极性一定的波前时间在20us及以下的冲击电压，绝缘件不应发生击穿，闪络次数不多于2次。 D, lightning impulse withstand voltage rating: in insulation parts between the poles of the actual application to withstand specified number of positive and negative polarity of wavefront time under 20 us and impulse voltage, insulation breakdown should not happen, flashover frequency of no more than 2 times.