STM PDF
Gas-insulated metal-enclosed switchgear for rated voltages 72,5 kV and above - Requirements for switching of bus-charging currents by disconnectors. Original standard IEC 61259-1994 in PDF full version. Additional info + preview on request
Document status: Replaced by St IEC 62271-102-2022
Radiation protection instrumentation - Direct reading personal dose equivalent (rate) monitors - X, gamma and high energy beta radiation. Original standard IEC 61283-1995 in PDF full version. Additional info + preview on request
Document status: Replaced by St IEC 61526-2024
fibre optic passive components and cable assemblies - Part 1- Capability approval - Generic specification. Original standard IEC 61313-1-1995 in PDF full version. Additional info + preview on request
Document status: Withdrawn
Radiation protection instrumentation - Neutron radiation - Direct reading personal dose equivalent and or dose equivalent rate monitors. Original standard IEC 61323-1995 in PDF full version. Additional info + preview on request
Document status: Replaced by St IEC 61526-2024
Low voltage surge protective devices - Part 21- Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods. IEC 61643-21:2025-10(en). Original standard IEC 61643-21-2025 in PDF full version. Additional info + preview on request
Document status: Active
Measuring relays and protection equipment - Protection communication interfacing - Part 1- General. Original standard IEC 61733-1-1995 in PDF full version. Additional info + preview on request
Document status: Withdrawn