The breakdown voltage of silicone oil typically ranges from 20 to 30 kV per millimeter, depending on various factors such as purity and specific formulation. It is important to conduct proper testing with appropriate testers to determine the precise breakdown voltage for a specific type of silicone oil, as contaminants or variations in composition can significantly affect its electrical properties. Using Globecore’s diagnostic tools, you can accurately measure the breakdown voltage in a laboratory or field setting, ensuring that your silicone oil meets industry standards and operational requirements.