
Power Cables - Part 620: Distribution Cables With Extruded Insulation For Rated Voltages From 3,6/6 (7,2) Kv To 20,8/36 (42) Kv
出版:Verband Deutscher Elektrotechniker

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Power Cables - Part 620: Distribution Cables With Extruded Insulation For Rated Voltages From 3,6/6 (7,2) Kv To 20,8/36 (42) Kv
出版:Verband Deutscher Elektrotechniker
專家解讀視頻