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Central safety power supply systems. Original standard UNE-EN 50171-2022 in PDF full version. Additional info + preview on request

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Information technology. Generic cabling systems - Alternative cabling configurations. Original standard UNE-EN 50173-20-2022 in PDF full version. Additional info + preview on request

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Information technology. Generic cabling systems - Homes. Original standard UNE-EN 50173-4-2018 in PDF full version. Additional info + preview on request

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Railway applications. Railway rolling stock cables having special fire performance. Test methods. Original standard UNE-EN 50305-2022 in PDF full version. Additional info + preview on request

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Bushings for transformers and reactor cable boxes not exceeding 36 kV. Original standard UNE-EN 50336-2022 in PDF full version. Additional info + preview on request

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Amendment 1 - Railway applications. Fixed installations and rolling stock. Criteria to achieve technical compatibility between pantographs and overhead contact line. Original standard UNE-EN 50367-2022 A1-2023 in PDF full version. Additional info + preview on request

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