IEC TS 60815-2 is a critical technical specification that provides engineering guidelines for the selection and dimensioning of high-voltage ceramic and glass insulators intended for use in polluted outdoor AC environments. It serves as a practical bridge between environmental data—such as salt spray or industrial dust—and the physical design of electrical infrastructure. Overview of IEC TS 60815-2

3. The Dimensioning Methodology

The core formula provided in IEC 60815-2 for determining the required Unified Specific Creepage Distance ($L_us$) is generally expressed as:

Common test equipment

The IEC 60815-2 standard is a technical guide titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 2: Glass and porcelain insulators." It provides specific rules for choosing and sizing ceramic and glass insulators based on the environmental pollution levels they will face. Key Content of IEC 60815-2

IEC 60815-2 PDF Download

The grid held. In the quiet morning that followed, Elias saved a new note in the PDF: