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Amendment 1 - Thyristor valves for high voltage direct current (HVDC) power transmission - Terminology. Original standard UNE-EN 60700-2-2016 A1-2021 in PDF full version. Additional info + preview on request

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Cable networks for television signals, sound signals and interactive services - System performance of forward paths loaded with digital channels only. Original standard UNE-EN 60728-101-2017 in PDF full version. Additional info + preview on request

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Semiconductor devices. Mechanical and climatic test methods - External visual examination. Original standard UNE-EN 60749-3-2017 in PDF full version. Additional info + preview on request

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Nuclear facilities. Electrical equipment important to safety. Qualification. Original standard UNE-EN 60780-323-2017 in PDF full version. Additional info + preview on request

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Optical fibres - Product specifications. Sectional specification for polarization-maintaining fibres. Original standard UNE-EN 60793-2-70-2017 in PDF full version. Additional info + preview on request

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Amendment 1 - Miscellaneous lampholders - Particular requirements. Lampholders for double-capped linear LED lamps. Original standard UNE-EN 60838-2-3-2017 A1-2023 in PDF full version. Additional info + preview on request

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