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IEC TR 61597-2021 pdf free download – Overhead electrical conductors – Calculation methods for stranded bare conductors

IEC TR 61597-2021 pdf free download - Overhead electrical conductors - Calculation methods for stranded bare conductors. Based on these values at 20°C, the DC resistances have been calculated for temperatures of50C.8o C and 1oo °c. The...

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IEC 63327-2021 pdf free download – Automatic floor treatment machines for commercial use — Particular requirements

IEC 63327-2021 pdf free download - Automatic floor treatment machines for commercial use — Particular requirements. 4General requirements The machine shall be constructed as follows; The machine when in manual mode shall fulfil the requirements for commercial...

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IEC 63287-1-2021 pdf free download – Semiconductor devices – Generic semiconductor qualification guidelines – Part 1: Guidelines for IC reliability qualification

IEC 63287-1-2021 pdf free download - Semiconductor devices – Generic semiconductor qualification guidelines – Part 1: Guidelines for IC reliability qualification. 5 Failure 5.1 Failure distribution Failure distribution of ICs can be broadly divided into three regions:...

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IEC 63277-2021 pdf free download – Binary power generation systems with capacity less than 100 kW – Performance test methods

IEC 63277-2021 pdf free download - Binary power generation systems with capacity less than 100 kW – Performance test methods. This document specifies the performance test methods for binary power generation systems.lt defines the normalized test conditions...

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IEC 63171-2021 pdf free download – Connectors for electrical and electronic equipment – Shielded or unshielded free and fixed connectors for balanced single-pair data transmission with current-carrying capacity – General requirements and tests

IEC 63171-2021 pdf free download - Connectors for electrical and electronic equipment – Shielded or unshielded free and fixed connectors for balanced single-pair data transmission with current-carrying capacity – General requirements and tests. Whenever the equation results...

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IEC 63085-2021 pdf free download – Radiation protection instrumentation – System of spectral identification of liquids in transparent and semitransparent containers (Raman systems)

IEC 63085-2021 pdf free download - Radiation protection instrumentation – System of spectral identification of liquids in transparent and semitransparent containers (Raman systems). 4 Requirements 4.1Structure and appearance The connection ports of the Raman analyzer should be...

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IEC 63002-2021 pdf free download – Interoperability specifications and communication method for external power supplies used with computing and consumer electronics devices

IEC 63002-2021 pdf free download - Interoperability specifications and communication method for external power supplies used with computing and consumer electronics devices Annex B provides further detail on the robustness and interoperability characteristics of uSBType-C and USB...

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IEC 62977-2-1-2021 pdf free download – Electronic displays – Part 2-1: Measurements of optical characteristics – Fundamental measurements

IEC 62977-2-1-2021 pdf free download - Electronic displays – Part 2-1: Measurements of optical characteristics – Fundamental measurements 5.2 Standard measuring darkroom conditions The luminance contribution from unwanted background illumination reflected off the test display shall be...

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IEC 62976-2021 pdf free download – Industrial non-destructive testing equipment – Electron linear accelerator

IEC 62976-2021 pdf free download - Industrial non-destructive testing equipment – Electron linear accelerator. 4.3 Operating conditions 4.3.1 Environmental requirement • environment temperature: (5 to 40) °C; • relative humidity: ≤90 %. 4.3.2 Power supply • voltage:...

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IEC 62975-2021 pdf free download – Natural esters – Guidelines for maintenance and use in electrical equipment

IEC 62975-2021 pdf free download - Natural esters – Guidelines for maintenance and use in electrical equipment. 7Evaluation of natural ester in equipment in service 7.1General A natural ester in service is subjected to heat, oxygen, water...

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