STB PDF

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7- Phase sequence. Original standard UNE-EN IEC 61557-7-2022 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components. Connector optical interfaces for single-mode fibres - Part 2-1- Connection parameters of dispersion unshifted physically contacting fibres. Non-angled. Original standard UNE-EN IEC 61755-2-1-2022 in PDF full version. Additional info + preview on request

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Corrigendum - Fibre optic sensors - Part 4-3- Electric current measurement - Polarimetric method. Original standard UNE-EN IEC 61757-4-3-2020 AC-2022 in PDF full version. Additional info + preview on request

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Industrial networks. Profiles - Part 1-8- Fieldbus profiles. Communication Profile Family 8. Original standard UNE-EN IEC 61784-1-8-2023 in PDF full version. Additional info + preview on request

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Corrigendum - Adjustable speed electrical power drive systems - Part 5-1- Safety requirements - Electrical, thermal and energy. Original standard UNE-EN IEC 61800-5-1-2023 AC-2026 in PDF full version. Additional info + preview on request

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Instrument transformers Part 99- Glossary. Original standard UNE-EN IEC 61869-99-2023 in PDF full version. Additional info + preview on request

Document status: Active