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Electricity metering. Local and remote data exchange. Applications and performance. Original standard PD IEC TR 61361-1999 (2000) R013-001-1999 in PDF full version. Additional info + preview on request

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Electronic railway equipment. Train communication network (TCN) - Wireless Train Backbone (WLTB). Original standard PD IEC TR 61375-2-7-2014 in PDF full version. Additional info + preview on request

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Ultrasonics. Real-time pulse-echo systems. Test procedures to determine performance specifications. Original standard PD IEC TR 61390-2022 in PDF full version. Additional info + preview on request

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Wind energy generation systems - Numerical site calibration for power performance testing of wind turbines. Original standard PD IEC TR 61400-12-4-2020 in PDF full version. Additional info + preview on request

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Wind energy generation systems - Measurement and assessment of electrical characteristics. Wind turbine harmonic model and its application. Original standard PD IEC TR 61400-21-3-2019 in PDF full version. Additional info + preview on request

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Secondary cells and batteries. Test methods for checking the performance of devices designed for reducing explosion hazards. Lead-acid starter batteries. Original standard PD IEC TR 61430-1997 in PDF full version. Additional info + preview on request

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