STB PDF

Primary batteries - Safety of batteries with aqueous electrolyte. Original standard UNE-EN IEC 60086-5-2021 in PDF full version. Additional info + preview on request

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Designation of phase differences by hour numbers in three-phase AC systems. Original standard UNE-EN IEC 60152-2021 in PDF full version. Additional info + preview on request

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Electrical insulating materials. Thermal endurance properties - Instructions for calculating thermal endurance characteristics. Original standard UNE-EN IEC 60216-3-2021 in PDF full version. Additional info + preview on request

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Corrigendum - Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers. Original standard UNE-EN IEC 60255-187-1-2021 AC-2023 in PDF full version. Additional info + preview on request

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Measuring relays and protection equipment - Functional requirements for differential protection. Restrained and unrestrained differential protection of motors, generators and transformers. Original standard UNE-EN IEC 60255-187-1-2021 in PDF full version. Additional info + preview on request

Document status: Active

Corrigendum - Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index. Original standard UNE-EN IEC 60268-16-2020 AC-2025 in PDF full version. Additional info + preview on request

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