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High-voltage switchgear and controlgear - Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and includuing 52 kV to be used in severe climatic conditions. Original standard IEC TS 62271-304-2008 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC TS 62271-304-2019

Fuel cell technologies - Part 7-2: Test methods - Single cell and stack performance tests for solid oxide fuel cells (SOFC). IEC TS 62282-7-2:2014-05(en-fr). Original standard IEC TS 62282-7-2-2014 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 62282-7-2-2025

Design of earth electrode stations for high-voltage direct current (HVDC) links - General guidelines. Original standard IEC TS 62344-2013 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC TS 62344-2022

Power systems management and associated information exchange - Data and communications security - Part 4: Profiles including MMS. Original standard IEC TS 62351-4-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 62351-4-2020

Power systems management and associated information exchange - Data and communications security - Part 5: Security for IEC 60870-5 and derivatives. Original standard IEC TS 62351-5-2013 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 62351-5-2023

Power systems management and associated information exchange - Data and communications security - Part 6: Security for IEC 61850. Original standard IEC TS 62351-6-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEC 62351-6-2020