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IEVref:426-04-49ID:
Language:enStatus: Standard
Term: pollution degree
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Definition: numeral characterizing the expected pollution of the micro-environment

Note 1 to entry: Pollution degrees 1, 2, 3 and 4 are used, see IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests.


Publication date:2020-03
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