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sklademVydáno: 1990-06-20
UNE 20439-1:1990
ACCEPTANCE INSPECTION OF CLASS 3 ALTERNATING-CURRENT WATTHOUR METERS.
Control de aceptación de los contadores de corriente alterna reactiva de clase 3.
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Španělsky PDF
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| Označení normy: | UNE 20439-1:1990 |
| Počet stran: | 22 |
| Vydáno: | 1990-06-20 |
| Status: | Norma |
DESCRIPTION
UNE 20439-1:1990
THE METHODS AND PROCEDURES INCLUDED IN THIS STANDARD APPLY TO NEWLY MANUFACTURED DIRECT CONNECTED INDUCTION TYPE WATTHOUR METERS, COVERED BY UNE 21 310/3, WHICH ARE PRODUCED AND DELIVERED IN LARGE QUANTITIES.
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