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Instrument transformers - Part 100- Guidance for application of current transformers in power system protection. IEC TR 61869-100:2017-01(en). Original standard IEC TR 61869-100-2017 in PDF full version. Additional info + preview on request

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Corrigendum 1 - Instrument transformers - Part 100- Guidance for application of current transformers in power system protection. IEC TR 61869-100:2017-01/COR1:2023-10(en-fr). Original standard IEC TR 61869-100-2017 cor1-2023 in PDF full version. Additional info + preview on request

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Instrument transformers - Part 102- Ferroresonance oscillations in substations with inductive voltage transformers. IEC TR 61869-102:2014-01(EN). Original standard IEC TR 61869-102-2014 in PDF full version. Additional info + preview on request

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Instrument transformers - The use of instrument transformers for power quality measurement. Original standard IEC TR 61869-103-2012 in PDF full version. Additional info + preview on request

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Tests recommended on cables with a longitudinally applied metal foil for rated voltages above 30 kV (Um = 36 kV) up to and including 500 kV (Um = 550 kV). IEC TR 61901:2016-05(en). Original standard IEC TR 61901-2016 in PDF full version. Additional info + preview on request

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Household microwave ovens - Visual clarity of see-through oven doors. IEC 61902:1998. Original standard IEC TR 61902-1998 in PDF full version. Additional info + preview on request

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