IEC 60076-4:2002 pdf free download.Power transformers -Part 4: Guide to the lightning impulse andswitching impulse testing- ower transformers and reactors. This part of IEC 60076 gives guidance and explanatory comments on the existing proce...

IEC 2022-10-08 1

IEC 60076-2:2011 pdf free download.Power transformers - Part 2: Temperature rise for liquid-immersed transformers. This part of IEC 60076 applies to liquid-immersed transformers, identifies power transformers according to their cooling meth...

IEC 2022-10-08 1

IEC 60073:2002 pdf free download.Basic and safety principles for man-machineinterface, marking and identification - Coding principies for indicators and actuators. increase the safety of persons，property and/or the environment through the...

IEC 2022-10-08 1

IEC 60068-2-53:2010 pdf free download.Environmental testing - Part 2-53:Tests and guidance - Combined climatic (temperature/humidity)and dynamic (vibration/shock) test. This part of IEC 60068 provides a description of test methods and guida...

IEC 2022-10-08 1

IEC 60068-2-5:2010 pdf free download.Environmental testing- Part 2-5: Tests -Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing. This part of IEC 60068 provides guidance for testing equipment or comp...

IEC 2022-10-08 1

IEC 60059:1999 pdf free download.IEC standard current ratings. 2 Normative reference The following normative documents contain provisions wtiich, throu9h reference in this text, constitute provisions of lEG 60059. For dated references, subs...

IEC 2022-10-08 1

IEC 60052:2002 pdf free download.Voltage measurement by means of standard air gaps. IEC 60052 sets forth recommendations concerning the construction and use of standard air gaps for the measurement of peak values of the following four types...

IEC 2022-10-08 1

IEC 60050-807:1998 pdf free download.lnternational Electrotechnical Vocabulary -Part 807: Digital recording of audio and video signals. I) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization c...

IEC 2022-10-08 1

IEC 60050-445:2002 pdf free download.International Electrotechnical Vocabulary Part 445: Specified time all-or-nothing relays. In the past, IEC 60050-446(Part 446 of the lEV') listed the terminology for all types of electricalrelays. In ord...

IEC 2022-10-08 1

IEC 60044-7:1999 pdf free download.Instrument transformers -Part 7: Electronic voltage transformers. This part of International Standard IEC 60044 applies to newly manufactured electronic voltage transformers with analogue output, for use w...

IEC 2022-10-08 1