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Power transformers - Additional European requirements - Part 1-1: Common part - General requirements
40.20 DIS ballot initiated
Power transformers - Additional European requirements - Part 3-1: Large power transformer - General requirements
45.99 Dispatch of FV draft to CCMC
Power transformers - Additional European requirements: Part 3-3 Large power transformer - Accessories
40.60 Close of voting
Connecting terminal flags for bushings from 250A to 4 000 A for insulating liquid filled transformers
45.99 Dispatch of FV draft to CCMC
Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
10.99 New project approved
Power transformers - Part 19-1: Rules for the determination of uncertainties in the measurement of the losses of power transformers
60.55 Ratification completed (DOR)
Power transformers - Part 2: Temperature rise for liquid-immersed transformers
10.99 New project approved
Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors
40.60 Close of voting
Synthetic esters - Guidelines for maintenance and use in electrical equipment
40.20 DIS ballot initiated
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-1: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
50.60 Close of voting. Proof returned by secretariat
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 v
40.60 Close of voting
Safety of transformers, reactors, power supply units and combination thereof - Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage
40.60 Close of voting
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-13: Particular requirements and tests for auto-transformers and power supply units incorporating auto-transformers for general applications
50.60 Close of voting. Proof returned by secretariat
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-14: Particular requirements and tests for variable transformers and power supply units incorporating variable transformers for general applications
40.60 Close of voting
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-15: Particular requirements and tests for isolating transformers for medical IT systems for the supply of medical locations
50.60 Close of voting. Proof returned by secretariat
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units for general applications
50.60 Close of voting. Proof returned by secretariat