Lightning protection system components (LPSC) - Part 2: Requirements for conductors and earth electrodes

IEC 62561-2:2025 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 62561-2:2025 specifies the requirements and tests for

- metallic conductors (other than "natural" conductors) that form part of the air-termination and down-conductor systems, and

- metallic earth electrodes that form part of the earth-termination system.

This third edition cancels and replaces the second edition published in 2018. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

a) definitions of new conductor types mentioned in this document have been added;

b) the document has been updated in line with IEC 60068-2-52:2017 on salt mist treatment;

c) the document has been updated in line with ISO 22479:2019 on humid sulphurous atmosphere treatment;

d) a new normative Annex H for material, configuration and cross-sectional area test has been introduced;

e) a new normative Annex I for applicabil