Dr. Seifert obtained his Ph.D. degree from TU Branschweig in 1998. He has had 20 years of experience in development of composite materials for high voltage insulating applications. In 2018 he joined the MR Group as Senior Expert for basic development. He serves as Chairman of IEC TC 36 Insulators and is also Convener of CIGRE Working Groups D1.58 and D1.59.
While application of composite insulators on lines and at substations is increasing steadily, a key concern is possible ageing that can impact long-term performance and service life. Many artificial and natural ageing tests and procedures have been proposed to help predict performance. In parallel, artificial pollution laboratory tests have been developed to assess hydrophobicity properties essential to good pollution performance. This presentation traces the historical development that influenced the standardization process in CIGRE and IEC. Results using different test methods and from test station experience are compared and systematic evaluation of data is applied to develop design tools to estimate ageing performance.