Specialized research on high-voltage insulator wetting behavior and contamination flashover Few books address the wetting characteristics and contamination behavior of high-voltage insulator under varying environmental conditions. Theory and Application of Dynamic Wetting for High Voltage Insulator consolidates a decade of research published in IEEE Transactions and IET Journals into a single authoritative reference. Written by Tsinghua University researchers with extensive IEEE leadership roles, this volume connects fundamental wetting dynamics with practical field applications. The book examines contamination wetting behavior mechanisms and their impact on insulator performance through on-site examples and engineering applications. Critical findings for ultra-high voltage engineering address contamination flashover prevention, dynamic environmental factors, and power system reliability improvement strategies applicable to modern transmission infrastructure. Key topics include: Wetting characteristics of high-voltage external insulation with detailed analysis of contamination behavior under varying environmental conditions Performance and application of insulation materials for reliable operation under complex and harsh service conditions Advanced monitoring, assessment, and management approaches for external insulation condition and operational risk Fundamental principles of high-voltage and ultra-high-voltage engineering relevant to modern power transmission systems Impacts of climate variability and extreme environments on insulation performance and corresponding mitigation strategies For power system engineers, high-voltage equipment researchers, and graduate students in electrical engineering, this reference provides specialized knowledge previously scattered across journal literature. It delivers both theoretical foundations and practical methodologies for addressing external insulation challenges in modern power transmission systems.