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Amendment 1 - Power transformers - Part 10-1: Determination of sound levels - Application guide

10.99   New project approved

N014 more

Power transformers - Part 12: Loading guide for dry-type power transformers

10.99   New project approved

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Power transformers - Part 15: Gas-filled power transformers

10.99   New project approved

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Power transformers - Part 16: Transformers for wind turbine applications

10.99   New project approved

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Power transformers - Part 19-2: Rules for the determination of uncertainties in the measurement of the losses of reactors

30.60   Close of voting/ comment period

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Power transformers - Part 2: Temperature rise for liquid-immersed transformers

40.20   DIS ballot initiated: 12 weeks

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Power transformers - Part 20: Energy efficiency

10.99   New project approved

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Corrigendum 1 - Power transformers - Part 20: Energy efficiency

10.99   New project approved

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Power transformers - Part 21: Standard requirements, terminology, and test code for step-voltage regulators

10.99   New project approved

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Power transformers - Part 23: DC magnetic bias suppression devices

10.99   New project approved

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Power transformers - Part 26: Functional requirements of insulating liquids for use in power transformers

10.99   New project approved

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Power transformers - Part 4: Lightning impulse and switching impulse tests of power transformers and reactors

50.99   FDIS or proof approved for publication

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Power transformers - Part 57-129: Transformers for HVDC applications

20.99   WD approved for registration as CD

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Power transformers - Part 57-129: Transformers for HVDC applications

10.99   New project approved

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Explosive atmospheres - Part 0: Equipment - General requirements

50.60   Close of voting. Proof returned by secretariat

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Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"

50.60   Close of voting. Proof returned by secretariat

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Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres

50.60   Close of voting. Proof returned by secretariat

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Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres

40.60   Close of voting

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