STB PDF

Surge arresters - Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV. Original standard UNE-EN IEC 60099-8-2018 in PDF full version. Additional info + preview on request

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Method for the determination of the proof and the comparative tracking indices of solid insulating materials. Original standard UNE-EN IEC 60112-2020 in PDF full version. Additional info + preview on request

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Electroacoustics. Hearing aids - Requirements and methods of measurement for electromagnetic immunity to mobile digital wireless devices. Original standard UNE-EN IEC 60118-13-2020 in PDF full version. Additional info + preview on request

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Hydraulic turbines, storage pumps and pump-turbines. Model acceptance tests. Original standard UNE-EN IEC 60193-2019 in PDF full version. Additional info + preview on request

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Safety of machinery. Electrical equipment of machines - Requirements for equipment for voltages above 1 000 V AC or 1 500 V DC and not exceeding 36 kV. Original standard UNE-EN IEC 60204-11-2019 in PDF full version. Additional info + preview on request

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Amendment 1 - Edison screw lampholders. Original standard UNE-EN IEC 60238-2018 A1-2018 in PDF full version. Additional info + preview on request

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