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IEC 60815-2 is a foundational standard for modern power grid insulation design. By shifting the industry from a generalized insulation checklist to a precise calculation of Site Pollution Severity and Unified Specific Creepage Distance, it ensures that glass and ceramic insulators can withstand the harsh realities of environmental pollution. For any professional tasked with maintaining or building reliable AC high-voltage systems, the IEC 60815-2 PDF is an indispensable technical asset.
Calculate initial creepage values based on the Site Pollution Severity (SPS) class of the installation area.
Definitions and references to related standards, including IEC 60038 (voltage levels), IEC 60050-471 (insulator terminology), IEC 60071 (insulation coordination), and IEC 60507 (artificial pollution tests). iec 60815-2 pdf
IEC 60815-2 outlines a structured, data-driven approach to choosing the right glass or ceramic insulator. 1. Determine the Site Pollution Severity (SPS)
By strictly adhering to the formulas laid out in the official IEC 60815-2 documentation, utilities can drastically reduce pollution-related outages, optimize maintenance washing schedules, and guarantee grid resilience over decades of service. IEC 60815-2 is a foundational standard for modern
This part of the IEC 60815 series specifically addresses outdoor high-voltage insulators made of ceramic (porcelain) or toughened glass. It provides the technical framework for engineers to:
[Measure ESDD/NSDD or DDG] │ ▼ [Determine Pollution Class (a to e)] │ ▼ [Select Baseline USCD from Table] │ ▼ [Apply Profile Correction Factors] │ ▼ [Calculate Final Required Creepage Distance] Calculate initial creepage values based on the Site
If an insulator profile fails to meet these geometric optimization ratios, a correction factor ( Kacap K sub a
The SPS class is validated by measuring two primary metrics on-site over a minimum 12-month period:
The standard moves away from rigid look-up tables. Instead, it uses an engineering process based on site-specific measurements.
The official scope of IEC/TS 60815‑2:2008 (the first edition) states: “…is applicable to the selection of ceramic and glass insulators for a.c. systems, and the determination of their relevant dimensions, to be used in high‑voltage systems with respect to pollution.” The second edition (2025) refines this further, specifying that it and gives specific guidelines to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments. The basis for the structure and approach is fully explained in IEC TS 60815‑1 .