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Guidelines for the use of monitor systems for lead-acid traction batteries. Original standard PD IEC TR 61431-2020 in PDF full version. Additional info + preview on request

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Low-voltage switchgear and controlgear assemblies - Guidance to specifying assemblies. Original standard PD IEC TR 61439-0-2022 in PDF full version. Additional info + preview on request

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Electrical equipment of industrial machines. Serial data link for real-time communication between controls and drives. Original standard PD IEC TR 61491-2010 in PDF full version. Additional info + preview on request

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Safety of machinery. Electro-sensitive protective equipment - Particular requirements for equipment using vision based protective devices (VBPD). Original standard PD IEC TR 61496-4-2007 in PDF full version. Additional info + preview on request

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Equipment for general lighting purposes. EMC immunity requirements - Objective light flickermeter and voltage fluctuation immunity test method. Original standard PD IEC TR 61547-1-2020 in PDF full version. Additional info + preview on request

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Radiation protection instrumentation. Radon and radon decay product measuring instruments - General properties of radon and radon decay products and their measurement methods. Original standard PD IEC TR 61577-5-2019 in PDF full version. Additional info + preview on request

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