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Corrigendum - Photovoltaic devices Procedures for temperature and irradiance corrections to measured I-V characteristics. Original standard UNE-EN IEC 60891-2022 AC-2024 in PDF full version. Additional info + preview on request

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Photovoltaic devices Procedures for temperature and irradiance corrections to measured I-V characteristics. Original standard UNE-EN IEC 60891-2022 in PDF full version. Additional info + preview on request

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Low-voltage switchgear and controlgear - Part 1- General rules. Original standard UNE-EN IEC 60947-1-2022 in PDF full version. Additional info + preview on request

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Low-voltage switchgear and controlgear - Control units for built-in thermal protection (PTC) for rotating electrical machines. Original standard UNE-EN IEC 60947-8-2023 in PDF full version. Additional info + preview on request

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Rules for steam turbine thermal acceptance tests - Wide range of accuracy for various types and sizes of turbines. Original standard UNE-EN IEC 60953-0-2022 in PDF full version. Additional info + preview on request

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Rules for steam turbine thermal acceptance tests - Thermal performance verification tests of retrofitted steam turbines. Original standard UNE-EN IEC 60953-3-2022 in PDF full version. Additional info + preview on request

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