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This part of IEC 60071 applies to three-phase a.c. systems having a highest voltage for equipment above 1 kV. It specifies the procedure for the selection of the rated withstand voltages for the phase-to-earth, phase-to-phase and longitudinal insulation of the equipment and the installations of these systems. It also gives the lists of the standard […]
IEC 60071-1:2011 pdf download Read More »
This part of IEC 60050 gives the general terminology used in environmental standardization for electrical and electronic products and systems. It has the status of a horizontal standard in accordance with IEC Guide 1 08, Guidelines for ensuring the coherency of IEC publications –Application of horizontal standards. This terminology is consistent with the terminology developed
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This part of IEC 60034 specifies test methods and an interpolation procedure for determining losses and efficiencies of converter-fed motors within the scope of IEC 60034-1:2017. The motor is then part of a variable frequency power drive system (PDS) as defined in IEC 61800-9-2:2017.
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This part of IEC 63093 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of EFD-cores, the essential dimensions of coil formers to be used with them, and the effective parameter values to be used in calculations involving them. It also gives guidance on the allowable limits of surface irregularities
EN IEC 63093-14:2019 pdf download Read More »
This document specifies the minimum requirements for the qualification of concentrator photovoltaic (CPV) cells and Cell on Carrier (CoC) assemblies for incorporation into CPV receivers, modules and systems. The object of this qualification standard is to determine the optoelectronic, mechanical, thermal,and processing characteristics of CPV cells and CoCs to show that they are capable of
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This part of IEC 62660 specifies test procedures to observe the reliability and abuse behaviour of secondary lithium-ion cells and cell blocks used for propulsion of electric vehicles including battery electric vehicles (BEV) and hybrid electric vehicles (HEV). NOTE 1 Secondary lithium-ion cells used for propulsion of plug-in hybrid electric vehicles (PHEV) can be tested
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This part of IEC 62660 specifies performance and life testing of secondary lithium-ion cells used for propulsion of electric vehicles including battery electric vehicles(BEV) and hybrid electric vehicles (HEV). NOTE 1 Secondary lithium-ion cell used for propulsion of plug-in hybrid electric vehicle (PHEV) can be tested by the procedure either for BEV application or HEV
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This document specifies general and safety requirements for light-emitting diode (LED) modules: • non-integrated LED modules (LEDni modules) and semi-integrated LED modules (LEDsi modules) for operation under constant voltage, constant current or constant power; • Integrated LED modules (LEDi modules) for use on DC supplies up to 250 V or AC supplies up to 1
EN IEC 62031:2020 pdf download Read More »
This document applies to X- RAY TUBE ASSEMBLIES and to FILTERING MATERIAL , in medical diagnostic applications up to a HIGH VOLTAGE of 1 50 kV. For HIGH VOLTAGES greater than 50 kV, this document applies to X- RAY TUBE ASSEMBLIES with tungsten or tungsten-alloy TARGETS only. NOTE 1 The FILTERING MATERIAL in the X-
EN IEC 60522-1:2021 pdf download Read More »
This International Standard applies to string insulator units of the cap and pin type with insulating parts of ceramic material or glass, intended for AC overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 1 00 Hz. It also applies to insulators of similar design used in
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