标准摘要
[中文适用范围]： 本标准IEC 60156:2025规定了在工频条件下测定绝缘液体介电击穿电压的方法。试验程序是在指定设备上进行的，其中油样被施加逐渐增强的交流电场，直至发生击穿。该方法适用于粘度在40°C时不超过350 mm²/s的所有类型绝缘液体。它既适用于未使用的液体在交货时的质量验收测试，也适用于监测和维护过程中取样的设备状态评估。 [外文原描述]： IEC 60156:2025 specifies the method for determining the dielectric breakdown voltage of insulating liquids at power frequency. The test procedure is performed in a specified apparatus, where the oil sample is subjected to an increasing AC electrical field until breakdown occurs. The method applies to all types of insulating liquids of nominal viscosity up to 350 mm2/s at 40 °C. It is appropriate both for acceptance testing on unused liquids at the time of their delivery and for establishing the condition of samples taken in monitoring and maintenance of equipment.
英文名称Insulating liquids - Determination of the breakdown voltage at power frequency - Test method