Standard
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IEC 60621-4:1981
[Withdrawn]Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries). Part 4: Requirements for the installation
Comprises the following chapters: Chapter I: Winning, stacking and primary processing machinery: Chapter II: Transport conveyor systems: Chapter Ill: Pumping and water supply systems.
Published: 01/01/1981
Pages: 39
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