NEN HD 428-2-2:1997被替代
Three-phase Oil-immersed Distribution Transformers 50 Hz, From 50 To 2500 Kva With Highest Voltage For Equipment Not Exceeding 36 Kv - Part 2: Distribution Transformers With Cable Boxes On The High-voltage And/or Low-voltage Side - Section 2: Cable Boxes Type 1 For Use On Distribution Transformers Meeting The Requirements Of Hd 428.2.1 S1
出版：Nederlands Normalisatie Instituut
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