Lifetime Prediction and Aging Characteristics of HTV-SiR Under Coupled Electro–Thermo–Hygro–Mechanical Stresses
and 0.2% tensile strain, the predicted lifetimes corresponding to failure probabilities of 10%, 75%, and 90% are 1.77, 9.08, and 17.90 years, respectively. The applicability of the model is supported by field-aged specimens. These findings provide a mechanistically grounded and reliability-oriented basis for condition assessment, lifetime-margin evaluation, material screening, and maintenance planning of UHVDC composite insulators operating in hot-humid environments.
Authors
- Ben Shang (ORCID: https://orcid.org/0000-0001-6250-8385)
- Zian Yuan
- Qifan Yang (ORCID: https://orcid.org/0009-0002-7934-5679)
- Wenjie Fu
- Youping Fan (ORCID: https://orcid.org/0000-0001-6686-9735)
- Zijiang Wang
- Lei Yang
Institutions
- North China University of Water Resources and Electric Power (CN)
- Wuhan University (CN)
- Guizhou Electric Power Design and Research Institute (CN)
- China Electric Power Research Institute
Publication Details
- Journal
- Polymers
- Published
- 2026-04-14
- DOI
- https://doi.org/10.3390/polym18080955
- Primary Topic
- High voltage insulation and dielectric phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Key Research and Development Program of China