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THREE-PHASE LOW-VOLTAGE DISTRIBUTION TRANSFORMERS, 50 Hz, FROM 25 TO 2500 kVA.
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STANDARD published on 23.11.1990
Designation standards: UNE 20138:1990
Note: WITHDRAWN
Publication date standards: 23.11.1990
SKU: NS-1129811
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: Spanish technical standard
Category: Technical standards UNE
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