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Telecontrol equipment and systems. General considerations - Influence of modem transmission procedures with scramblers on the data integrity of transmission systems using the protocol IEC 60870-5. Original standard PD IEC TR 60870-1-5-2000 in PDF full version. Additional info + preview on request

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Telecontrol equipment and systems. Telecontrol protocols compatible with ISO standards and ITU-T recommendations - TASE.1 user conventions. Original standard PD IEC TR 60870-6-504-1999 in PDF full version. Additional info + preview on request

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Telecontrol equipment and systems - Telecontrol protocols compatible with ISO standards and ITU-T recommendations. TASE.2 User guide. Original standard PD IEC TR 60870-6-505-2002 (2007) in PDF full version. Additional info + preview on request

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Graphical symbols for electrical equipment in medical practice. Original standard PD IEC TR 60878-2022 (2023) in PDF full version. Additional info + preview on request

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Glass bulb designation system for lamps. Original standard PD IEC TR 60887-2010 in PDF full version. Additional info + preview on request

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A method of temperature-rise verification of low-voltage switchgear and controlgear assemblies by calculation. Original standard PD IEC TR 60890-2022 in PDF full version. Additional info + preview on request

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