The standard relies on a classification system for environmental pollution, ranging from "Very Light" to "Very Heavy." This is typically measured via Equivalent Salt Deposit Density (ESDD) or Non-Soluble Deposit Density (NSDD). Unified Specific Creepage Distance (USCD):
IEC 60815-2:2018 - Surge arresters - Part 2: Surge arresters for power systems with voltages above 1 kV iec 60815-2 pdf
: It provides the methodology to calculate the required USCD, ensuring the insulator has enough surface length to limit leakage currents. The standard relies on a classification system for
is the international technical specification that provides definitive guidelines for selecting and dimensioning ceramic and glass insulators for high-voltage AC systems operating in polluted environments . This standard is a critical companion to IEC TS 60815-1 , which establishes the general principles of pollution management for the entire series. Scope and Application of IEC 60815-2 This standard is a critical companion to IEC
If you are drafting technical documentation, an article, or a summary regarding this standard, ensure you cover these primary pillars:
| Standard | Title | |----------|-------| | | General principles, definitions, and pollution classes | | IEC 60815-3 | DC application for ceramic/glass insulators | | IEC 60815-4 | Polymeric insulators for AC/DC | | IEC 60507 | Artificial pollution tests (salt fog) | | IEC 60513 | Fundamental design considerations for HV insulators |
Based on the pollution class, the standard provides a table (Table 2 in the original document) that gives the (in mm/kV line-to-line voltage).