STM PDF

High-voltage alternating current circuit-breakers - Guide for short-circuit and switching test procedures for metal-enclosed and dead tank circuit-breakers. Original standard IEC TR 61633-1995 in PDF full version. Additional info + preview on request

Document status: Active

High-voltage switchgear and controlgear - Use and handling of sulphur hexafluoride (SF6) in high-voltage switchgear and controlgear. Original standard IEC TR 61634-1995 in PDF full version. Additional info + preview on request

Document status: Active

Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72,5 kV and above. CEI/IEC 1639:1996. Original standard IEC TR 61639-1996 in PDF full version. Additional info + preview on request

Document status: Active

Rigid high-voltage, gas-insulated transmission lines for rated voltage of 72,5 kV and above. CEI/IEC 61640:1998. Original standard IEC TR 61640-1998 in PDF full version. Additional info + preview on request

Document status: Active

Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal fault. IEC TR 61641:2014-09(en-fr). Original standard IEC TR 61641-2014 in PDF full version. Additional info + preview on request

Document status: Replaced by

Low-voltage surge protective devices - Part 03- SPD Testing Guide. IEC TR 61643-03:2024-07(en). Original standard IEC TR 61643-03-2024 in PDF full version. Additional info + preview on request

Document status: Active