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Fixed electric double-layer capacitors for use in electric and electronic equipment - Part 1- Generic specification. Original standard UNE-EN IEC 62391-1-2022 in PDF full version. Additional info + preview on request

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Corrigendum - Industrial communication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP). Original standard UNE-EN IEC 62439-2-2022 AC-2023 in PDF full version. Additional info + preview on request

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Corrigendum - Industrial communication networks - High availability automation networks - Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR). Original standard UNE-EN IEC 62439-3-2022 AC-2023 in PDF full version. Additional info + preview on request

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Energy performance of lamp controlgear - Controlgear for fluorescent lamps. Method of measurement to determine the total input power of controlgear circuits and the efficiency of controlgear. Original standard UNE-EN IEC 62442-1-2022 in PDF full version. Additional info + preview on request

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Energy performance of lamp controlgear - Controlgear for discharge lamps (excluding low-pressure mercury fluorescent lamps). Method of measurement to determine the efficiency of controlgear. Original standard UNE-EN IEC 62442-2-2022 in PDF full version. Additional info + preview on request

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Energy performance of lamp controlgear - Controlgear for tungsten-halogen lamps and LED light sources. Method of measurement to determine the efficiency of controlgear. Original standard UNE-EN IEC 62442-3-2022 in PDF full version. Additional info + preview on request

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