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  1. International Electrotechnical Commission The International Electrotechnical Commission (IEC) is an international standards organisation that prepares and publishes standards for electrical and electronic items. IEC standards cover things from solar power and power transmission, to batteries. All electrotechnologies are covered by IEC standards.
    simple.wikipedia.org/wiki/International_Electrotechnical_Commission
    simple.wikipedia.org/wiki/International_Electrotechnical_Commission
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    网页It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and …

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