IEC/TS 60815-2 is a Technical Specification titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions β Part 2: Ceramic and glass insulators for a.c. systems"
The storm over the coastal substation wasn't just rain; it was a cocktail of salt spray and industrial dustβthe exact nightmare iec 60815-2 pdf
"The Site Pollution Severity (SPS) is hitting 'Very Heavy' levels," his junior engineer, Sarah, shouted over the wind. "The Site Pollution Severity (SPS) is hitting 'Very
Typical cost: ~250β350 CHF (approx. $280β400 USD). " his junior engineer
IEC 60815-2 defines four main Site Pollution Severity (SPS) classes for AC: