NEN HD 428-1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 1: General Requirements And Requirements For Transformers With Highest Voltage For Equipment Not Exceeding 24 Kv
出版：Nederlands Normalisatie Instituut
专家解读视频
