Published originally in 1986 (and reaffirmed in various editions until its withdrawal), IEC 815 was the cornerstone document that taught the world how to map environmental pollution—from desert dust to coastal salt—onto a specific leakage distance for ceramic and glass insulators.
This guide provides a comprehensive overview of the series (often referred to as IEC 815), which is the international standard for the selection and dimensioning of high-voltage insulators meant for polluted conditions The original IEC 815 was replaced by the updated IEC/TS 60815 iec 815 pdf
Whether you are reading the legacy IEC 815 or the updated IEC 61284, the core objective remains the same: ensuring the mechanical and electrical integrity of the conductor hardware. Here are the critical testing parameters defined in the standard. Published originally in 1986 (and reaffirmed in various
Evaluate the environment to classify pollution (Very Light, Light, Medium, Heavy, Very Heavy). Select Required USCD: Determine the nominal USCD based on the SPS class. Correct USCD for Site Conditions: Adjust for factors such as altitude and insulator diameter. Select/Verify Insulator Profile: Evaluate the environment to classify pollution (Very Light,
: Modern versions are split into parts covering different materials and system types: Part 1 : General principles and definitions. Part 2 : Glass and ceramic insulators for AC systems. Part 3 : Polymer (composite) insulators for AC systems.