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Components for low-voltage surge protective devices - Part 351- Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT). IEC 61643-351-2016-10(en-fr). Original standard IEC 61643-351-2016 in PDF full version. Additional info + preview on request

Document status: Active

Components for low-voltage surge protection - Part 352- Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs). IEC 61643-352-2018-01(en-fr). Original standard IEC 61643-352-2018 in PDF full version. Additional info + preview on request

Document status: Active

Low-voltage surge protective devices - Part 41- Surge protective devices connected to DC low-voltage power systems - Requirements and test methods. IEC 61643-41-2025-05. Original standard IEC 61643-41-2025 in PDF full version. Additional info + preview on request

Document status: Active

Thin-film terrestrial photovoltaic (PV) modules - Design qualification and type approval. IEC 61646-2008. Original standard IEC 61646-2008 in PDF full version. Additional info + preview on request

Document status: Replaced by

Weibull analysis. IEC 61649-2008. Original standard IEC 61649-2008 in PDF full version. Additional info + preview on request

Document status: Active

Reliability data analysis techniques - Procedures for comparison of two constant failure rates and two constant failure (event) intensities. IEC 61650-1997. Original standard IEC 61650-1997 in PDF full version. Additional info + preview on request

Document status: Active