| 绝缘件的性能要求 |
| 添加时间：2018/3/20 15:30:10 浏览次数： |
| 绝缘件的性能要求 Performance requirements for 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 properties: one is the main performance of epoxy insulation insulation characteristics it is also called dielectric properties, dielectric performance mainly in two aspects: on the one hand the assessment of materials, quality, composition, curing degree of the material itself; on the other hand is the product evaluation, product design and 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: under the specified test conditions, the breakdown of insulation is the ratio between the voltage at time and the insulation thickness at the breakdown site, the original is called breakdown strength, the 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: under the specified conditions, the resistance of the insulating material between the conductor or between the conductor and the place of the connection. 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: apply a certain power frequency withstand voltage between the poles of the insulation application, so that the product will remain at a specified time for this specific voltage, and insulation parts should not be breakdown or flashover. 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, rated lightning impulse withstand voltage: in the actual application of the insulation parts, the voltage between the poles can withstand the positive and negative polarity of the specified times, and the impact time of the wave time is below 20us and below. The insulation should not breakdown, and the flashover frequency is no more than 2 times. |
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