Online Standards Free Download

IEC 61991-2000 pdf free download - Railway applications – Rolling stock – Protective provisions against electrical hazards. IEC 61991 offers a set of rules that are applied in the design and manufacture of electricalinstallations and equipment to...

IEC 61958-2000 pdf free download - High-voltage prefabricated switchgear and controlgear assemblies – Voltage presence indicating systems. 1General1.1Scope This International Standard is applicable to voltage presence indicating systems (VPIS) incor-porated in a.c. switchgear and controlgear covered by...

IEC 61954-2021 pdf free download - Static VAR compensators (SVC) – Testing of thyristor valves. The tests described apply to the valve (or valve sections), the valve structure and those partsof the coolant distribution system and firing...

IEC 61914-2021 pdf free download - Cable cleats for electrical installations. This International Standard specifies requirements and tests for cable cleats used for securingcables in electrical installations and for intermediate restraints used for holding cables togetherin formation...

IEC 61904-2000 pdf free download - Video recording — Helical-scan digital component video cassette recording format using 12,65mm magnetic tape and incorporating data compression (Format digital-L). |This International Standard applies to the format for video cassette recording...

IEC 61839-2000 pdf free download - Nuclear power plants – Design of control rooms – Functional analysis and assignment. This International Standard specifies functional analysis and assignment procedures (FAand A, sometimes called allocation of functions) for the...