The latest official version of the standard, which provides recommendations for the selection and application of surge arresters, is the Third Edition (2018) . This version technically revised and replaced the previous 2013 edition to align with new arrester classifications introduced in IEC 60099-4:2014 . Overview of IEC 60099-5:2018
The standard is structured to guide engineers through the entire process of selection and application, including:
IEC 60099-5 is a standard that specifies the requirements for surge arresters used to protect electrical power systems from overvoltages caused by lightning, switching operations, or other external factors. Surge arresters are critical components in power systems, as they help prevent damage to equipment and ensure the reliability of the electrical infrastructure. The standard covers various aspects of surge arrester design, testing, and application, including materials, construction, and performance requirements.
Clearer definitions and parameters for high-current and long-duration discharge capabilities, especially crucial for modern, heavily loaded networks. iec 600995 pdf upd
Stricter parameters and calculation models for ensuring the thermal stability of gapless arresters under continuous operating voltage conditions. Where to Access the IEC 60099-5 PDF
Standards are dynamic documents. When searching for updates, be aware of the version history:
Contains informative annexes detailing older Silicon Carbide (SiC) gapped arresters to assist engineers managing aging assets. Insulation Coordination The latest official version of the standard, which
The IEC 60099-5 PDF standard provides a comprehensive framework for the design, testing, and application of surge arresters in electrical power systems. Its updated requirements, improved testing procedures, and increased focus on safety make it a valuable resource for electrical engineers, manufacturers, testing laboratories, and utilities. By following this standard, users can ensure the reliable and safe operation of surge arresters in high-voltage power systems.
: Industry experts like Volker Hinrichsen released updated "Seminar Editions" in late 2024/early 2025 to help users navigate the transition between old line discharge classes and new charge-based classifications. International standard IEC 60099-5:2018 - Afnor EDITIONS
IEC 60027 applies to:
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