Iec 60815-2 Pdf May 2026

The storm over the coastal substation wasn't just rain; it was a cocktail of salt spray and industrial dust—the exact nightmare

had spent weeks preparing for. As the lead transmission engineer, Elias knew that the reliability of the entire regional grid rested on the "Selection and dimensioning of high-voltage insulators" He pulled up the IEC TS 60815-2

digital file on his tablet, the blue light reflecting off his safety glasses. This specific technical specification was his bible for choosing the right ceramic and glass insulators for AC systems in such a "polluted environment".

"The Site Pollution Severity (SPS) is hitting 'Very Heavy' levels," his junior engineer, Sarah, shouted over the wind.

Elias nodded, scrolling through the document's tables. He wasn't just looking at the insulators; he was calculating the Reference Unified Specific Creepage Distance (RUSCD)

. According to the standard, he had to apply critical correction factors for the insulators' diameter, altitude, and shed profile to ensure they wouldn't flashover under the salty grime.

"We need the anti-fog profile," Elias decided, pointing to the guidelines in IEC TS 60815-2 PDF

. The standard's latest 2025 revision had simplified the profile suitability checks, confirming that for these exact coastal conditions, alternating sheds with a high creepage-to-clearance ratio were the only way to prevent a total blackout.

As the first sparks of leakage current began to hiss on the old, undersized units, Elias knew his team was already behind. But with the IEC TS 60815-2

as their roadmap, they began the emergency swap, replacing the standard glass discs with the heavy-duty ceramic strings the specification demanded.

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

Always trust the RUSCD—it’s the only thing that stands between us and the dark. site pollution severity (SPS) classes are determined before applying the IEC 60815-2 standards? IEC TS 60815-2:2008

IEC 60815-2 is a technical standard providing guidelines for the selection and dimensioning of high-voltage ceramic and glass insulators in polluted environments, focusing on Unified Specific Creepage Distance (USCD) to prevent flashovers. The standard helps engineers classify pollution levels and select insulator profiles for specific environmental conditions like salt or industrial dust. Access the official standard at the IEC Webstore IEC/TS 60815-2 - iTeh Standards

Informative Report: IEC 60815-2 PDF

Introduction

IEC 60815-2 is a standard published by the International Electrotechnical Commission (IEC) that provides guidelines for the selection and testing of surge arresters for use in power systems. The standard is part of the IEC 60815 series, which deals with surge arresters for use in high-voltage power systems. This report provides an informative overview of the IEC 60815-2 PDF.

Scope and Purpose

The scope of IEC 60815-2 is to provide recommendations for the selection and testing of surge arresters for use in power systems with nominal voltages above 1 kV. The standard covers the requirements for surge arresters used to protect power system equipment from overvoltages caused by lightning, switching operations, or other disturbances. The purpose of the standard is to ensure that surge arresters are properly selected and tested to provide reliable protection for power system equipment.

Key Contents

The IEC 60815-2 PDF contains the following key sections:

  1. Introduction: Provides an overview of the standard and its purpose.
  2. Normative references: Lists the references to other standards and documents that are necessary for the application of this standard.
  3. Terms and definitions: Defines the terms and definitions used in the standard.
  4. Selection of surge arresters: Provides guidelines for the selection of surge arresters based on factors such as system voltage, fault current, and environmental conditions.
  5. Testing of surge arresters: Describes the testing procedures and requirements for surge arresters, including type tests, routine tests, and acceptance tests.
  6. Surge arrester application: Provides guidance on the application of surge arresters in power systems, including installation, maintenance, and monitoring.

Key Requirements

Some of the key requirements specified in IEC 60815-2 include:

Benefits and Importance

The IEC 60815-2 standard provides several benefits to power system operators and manufacturers of surge arresters, including: iec 60815-2 pdf

Conclusion

IEC 60815-2 is an important standard for the selection and testing of surge arresters in power systems. The standard provides guidelines and requirements for ensuring the reliable operation of surge arresters and protecting power system equipment from overvoltages. By following the guidelines and requirements specified in IEC 60815-2, power system operators and manufacturers can ensure the safe and efficient operation of their equipment.

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

The document is the second part of the broader IEC 60815 series, which collectively defines how to manage pollution-related flashover risks in power systems. While Part 1 (IEC TS 60815-1) establishes general principles and definitions, Part 2 focuses specifically on standard materials like porcelain (ceramic) and glass.

The latest edition, IEC TS 60815-2:2025, was recently released as a technical revision to replace the previous 2008 version. Key Technical Objectives

The primary goal of the specification is to give engineers a methodology to:

Determine Creepage Distance: Calculate the Reference Unified Specific Creepage Distance (RUSCD) based on a site’s pollution severity (SPS) class.

Evaluate Profiles: Assess the suitability of different insulator shapes (e.g., standard, anti-fog, aerodynamic, or alternating sheds) for specific types of pollution.

Apply Correction Factors: Adjust initial calculations to account for physical variables like insulator diameter, installation altitude, and mounting position.

Verify Performance: Define laboratory test parameters and criteria to confirm that a selected insulator will perform reliably in the field. IEC TS 60815-2:2008

Technical Report: Guide for the Selection of Insulators (IEC 60815-2)

Subject: Selection and dimensioning of high-voltage insulators intended for use in polluted conditions. Part 2: Ceramic and glass insulators for A.C. systems.

The "Lost" Graphs: Specific Creepage Distance

The most valuable asset inside the IEC 60815-2 PDF is Table 1 and Figure 1. These correlate the ESDD (Equivalent Salt Deposit Density) and NSDD (Non-Soluble Deposit Density) to a required Specific Creepage Distance (SCD).

For example:

Without this table, you are under-sizing your insulators by 30-40%, guaranteeing a flashover during the first dry fog season.

7. Conclusion

IEC 60815-2 provides a robust, scientific framework for ensuring the reliability of ceramic and glass insulators in polluted environments. By moving beyond simple "mm/kV" rules and introducing correction factors for diameter and profile, it allows engineers to optimize insulator strings—avoiding both under-design (flashovers) and over-design (unnecessary cost and weight).

Recommendation: If you need the official document for contractual or certification purposes, you should purchase the PDF directly from the IEC Webstore (iec.ch) or through authorized distributors like Techstreet or the IEEE.

Do you want:

  1. a brief summary of IEC 60815-2 (contents and scope), or
  2. guidance on where to obtain the official PDF and how to interpret it, or
  3. a practical how-to applying the standard (selection/calculation steps for transmission line insulators)?

Reply with 1, 2, or 3 (or combine choices).

You're looking for a write-up on IEC 60815-2 and a downloadable PDF!

IEC 60815-2 Overview

IEC 60815-2 is a standard published by the International Electrotechnical Commission (IEC) that provides guidelines for the selection of surge arresters for power systems. Specifically, this part of the standard deals with surge arresters for power systems with voltages above 1 kV.

Title: IEC 60815-2:2018 - Surge arresters - Part 2: Surge arresters for power systems with voltages above 1 kV

Scope: This standard applies to surge arresters designed to protect the insulation of power equipment against overvoltages. It covers metal-oxide surge arresters (MOSAs) without gaps and composite surge arresters. The storm over the coastal substation wasn't just

Key Aspects:

  1. Selection criteria: The standard provides guidelines for selecting suitable surge arresters based on factors such as system voltage, fault current, and environmental conditions.
  2. Performance requirements: It defines the performance requirements for surge arresters, including their ability to withstand overvoltages, energy handling capabilities, and response to fast transient overvoltages.
  3. Testing and validation: The standard outlines the testing procedures to validate the performance of surge arresters, ensuring they meet the required standards.

IEC 60815-2 PDF Download

You can purchase the IEC 60815-2 standard from the IEC website or other authorized distributors. Unfortunately, I won't be able to provide a direct PDF download link, as these standards are copyrighted and require purchase or subscription.

However, I can suggest some possible sources:

  1. IEC Webstore: You can purchase the standard directly from the IEC webstore (www.iec.ch).
  2. National standards bodies: Many national standards bodies, such as ANSI (American National Standards Institute) or BSI (British Standards Institution), offer IEC standards for purchase.
  3. Technical libraries: Some technical libraries or online databases, like IHS Standards Store or Techstreet, may offer access to IEC standards, including IEC 60815-2.

The IEC 60815-2 standard is a critical technical specification for the electrical power industry, specifically titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 2: Ceramic and glass insulators for a.c. systems".

This document provides a systematic framework for engineers to select and size insulators—such as porcelain or glass—based on the specific environmental pollution levels they will face in service. Core Purpose and Scope

The primary goal of IEC 60815-2 is to prevent insulator flashovers caused by environmental contamination like salt spray, industrial dust, or desert sand. It specifically covers outdoor high-voltage insulators used in AC systems, including: Overhead line insulators (cap-and-pin, long rod).

Substation and equipment insulators (post insulators, bushings). Key Technical Concepts

The standard guides users through a multi-step process to determine the necessary physical dimensions of an insulator: IEC TS 60815-2:2025

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

The standard builds on the general principles established in IEC 60815-1 and focuses on the following areas for glass and porcelain:

Pollution Level Assessment: It uses Site Pollution Severity (SPS) classes (Very Light to Very Heavy) to determine the required creepage distance.

Unified Specific Creepage Distance (USCD): It defines the minimum creepage distance per unit of voltage (mm/kV) required to prevent flashovers.

Profile Parameters: It provides guidance on insulator shapes, such as shed spacing, shed overhang, and "creepage factor," which are critical for performance in rain or coastal salt spray.

Correction Factors: Adjustments are made based on the insulator's diameter, as larger diameters typically perform worse in polluted conditions. Relationship within the 60815 Series

IEC 60815 is split into several parts to address different materials: Part 1: General principles and definitions. Part 2: Glass and porcelain insulators (this document). Part 3: Polymer (composite) insulators. How to Access the PDF

Standard documents like IEC 60815-2 are copyrighted and generally require purchase. You can find the official version through these sources:

IEC Webstore: The primary source for the most recent version (Edition 1.0).

National Standards Bodies: Organizations like ANSI (US), BSI (UK), or DIN (Germany) often sell localized versions of the IEC text.

University/Corporate Libraries: If you are a student or employee at an engineering firm, you may have access via subscriptions like IEEE Xplore or IHS Markit.

IEC 60815-2 is a technical specification titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 2: Ceramic and glass insulators for a.c. systems". It provides detailed guidance on choosing and sizing porcelain and glass insulators based on the specific pollution levels of their operating environment. Scope and Application

Applicability: Only for outdoor installations using ceramic or glass insulators in AC systems.

Purpose: To translate Site Pollution Severity (SPS) into concrete requirements for insulator profile and creepage distance. Introduction : Provides an overview of the standard

Relationship: It complements IEC TS 60815-1, which provides the general principles and overall structure for the entire 60815 series. Key Technical Concepts

RUSCD (Reference Unified Specific Creepage Distance): The baseline creepage distance determined directly from the Site Pollution Severity (SPS) class.

USCD (Unified Specific Creepage Distance): The final required creepage distance calculated after applying correction factors to the RUSCD.

Pollution Severity Classes: The standard refers to five classes (from very light to very heavy) to categorize environments like coastal, industrial, or desert areas. Sizing and Correction Factors

The standard provides formulas and adjustment factors to refine the required dimensions based on:

Insulator Diameter: Larger diameters typically require more creepage. Altitude: Corrections for air density at higher elevations.

Shed Profile: Evaluation of different shapes (standard, anti-fog, open, or alternating sheds) for their effectiveness in specific pollution types.

Installation Position: Adjustments for whether an insulator is mounted horizontally or vertically. Standard Evolution Previous Version: Replaced the older IEC/TR 60815 (1986).

Current Revision: A second edition (IEC TS 60815-2:2025) has been released to simplify profile suitability and update correction factors (e.g., for parallel insulators and altitude).

For official use, you can purchase the full document from the IEC Webstore or through authorized distributors like iTeh Standards and CSA Group.

IEC/TS 60815-2 is a Technical Specification titled "Selection and dimensioning of high-voltage insulators intended for use in polluted conditions – Part 2: Ceramic and glass insulators for a.c. systems"

. It provides specific guidance for choosing and sizing ceramic (porcelain) and glass insulators used in outdoor high-voltage AC systems exposed to environmental contamination. Core Content and Scope

The document builds upon the general principles established in IEC/TS 60815-1

(which defines pollution classes) to offer practical engineering guidelines for specific material types. iTeh Standards Insulator Types : Specifically covers materials for AC systems. Design Focus : Helps engineers determine relevant dimensions, such as creepage distance

, and select appropriate profiles (e.g., standard vs. "fog type") based on the site's pollution severity. Key Sections

: Typically includes scope, normative references, pollution severity levels, the relation between pollution and specific creepage distance, and profile characterization parameters. Appendices

: Often contains practical tools like a questionnaire for evaluating polluted areas and information on maintenance practices like greasing and washing. Relationship to Other Parts

The IEC 60815 series is divided by material and system type: IEC/TS 60815-2 - PLSLine

IEC/TS 60815-2 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 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:

Determine Reference Unified Specific Creepage Distance (RUSCD): Calculate initial creepage values based on the Site Pollution Severity (SPS) class of the installation area.

Evaluate Profile Suitability: Judge the effectiveness of different shed shapes—such as standard, open, anti-fog, or alternating profiles—against specific types of environmental contaminants like salt or industrial dust.

Apply Correction Factors: Adjust the RUSCD for variables such as altitude, insulator diameter, and installation orientation to arrive at the final required Unified Specific Creepage Distance (USCD).

Performance Verification: Identify appropriate laboratory test methods, such as those in IEC 60507, to confirm that a selected insulator will withstand the specified pollution conditions. Key Technical Concepts

Engineers using the IEC 60815-2 PDF typically focus on several core parameters that define an insulator's resilience to surface flashover: IEC TS 60815-2:2025