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Railway applications - Electric equipment for rolling stock - Part 4- Electrotechnical components - Rules for AC circuit-breakers. Original standard UNE-EN IEC 60077-4-2021 in PDF full version. Additional info + preview on request

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Railway applications - Electric equipment for rolling stock - Part 5- Electrotechnical components - Rules for HV fuses. Original standard UNE-EN IEC 60077-5-2021 in PDF full version. Additional info + preview on request

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Explosive atmospheres, Part 0- Equipment - General requirements. Original standard UNE-EN IEC 60079-0-2021 in PDF full version. Additional info + preview on request

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Explosive atmospheres - Part 19- Equipment repair, overhaul and reclamation. Original standard UNE-EN IEC 60079-19-2021 in PDF full version. Additional info + preview on request

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Primary batteries - Guidance on environmental aspects. Original standard UNE-EN IEC 60086-6-2020 in PDF full version. Additional info + preview on request

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Analogue audio disk records and reproducing equipment. Original standard UNE-EN IEC 60098-2020 in PDF full version. Additional info + preview on request

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