Online Standards Free Download

IEC 61954-2021 pdf free download – Static VAR compensators (SVC) – Testing of thyristor valves

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...

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IEC 61914-2021 pdf free download – Cable cleats for electrical installations

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...

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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)

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...

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IEC 61853-1-2011 pdf free download – Photovoltaic (PV) module performance testing and energy rating – Part 1: Irradiance and temperature performance measurements and power rating

IEC 61853-1-2011 pdf free download - Photovoltaic (PV) module performance testing and energy rating – Part 1: Irradiance and temperature performance measurements and power rating. This part of lEC 61853 describes requirements for evaluating PV module performance...

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IEC 61851-25-2020 pdf free download – Electric vehicle conductive charging system – Part 25: DC EV supply equipment where protection relies on electrical separation

IEC 61851-25-2020 pdf free download - Electric vehicle conductive charging system – Part 25: DC EV supply equipment where protection relies on electrical separation This document applies to the DC EV supply equipment for charging electric road...

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IEC 61839-2000 pdf free download – Nuclear power plants – Design of control rooms – Functional analysis and assignment

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...

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IEC 61788-26-2020 pdf free download – Superconductivity – Part 26: Critical current measurement – DC critical current of RE-Ba-Cu-O composite superconductors

IEC 61788-26-2020 pdf free download - Superconductivity – Part 26: Critical current measurement – DC critical current of RE-Ba-Cu-O composite superconductors. 6.2 Mounting of the specimen The specimen shall be mounted to the flat surface of the...

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IEC 61788-17-2021 pdf free download – Superconductivity – Part 17: Electronic characteristic measurements – Local critical current density and its distribution in large-area superconducting films

IEC 61788-17-2021 pdf free download - Superconductivity – Part 17: Electronic characteristic measurements – Local critical current density and its distribution in large-area superconducting films. This part of lEC 61788 specifies the measurements of the local critical...

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IEC 61788-4-2020 pdf free download – Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb‑Ti and Nb 3 Sn composite superconductors

IEC 61788-4-2020 pdf free download - Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb‑Ti and Nb 3 Sn composite superconductors. This part of lEC 61788 specifies a test method for the...

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IEC 61788-7-2020 pdf free download – Superconductivity – Part 7: Electronic characteristic measurements – Surface resistance of high‑temperature superconductors at microwave frequencies

IEC 61788-7-2020 pdf free download - Superconductivity – Part 7: Electronic characteristic measurements – Surface resistance of high‑temperature superconductors at microwave frequencies. Thispart of IEC 61788 describes measurement of the surface resistance (Rs) ofsuperconductors at microwave frequencies...

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