IEC-60050-447 › Complete Document History
International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays and protection equipment
Complete Current Edition: |
EDITION 2.0 - Part 447: Measuring relays and protection equipment - May 1, 2020
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Obsolete Revision Information: |
EDITION 1.0 - Part 447: Measuring relays - June 1, 2010
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