1 Prezentul standard stabile?te gradele de protec?ie asigurate prin carcasele de protec?ie ale transformatoarelor, autotransformatoarelor, regulatoarelor de induc?ie, transformatoarelor de m?sur? ?i transductoarelor de tip uscat sau imersate, numite ?n co
STAS 5680-1981 history
1981STAS 5680-1981 TRANSFORMERS, AUTO— RANSFORMERS, INDUCTION OLTAGE REGULA TORS, NSTRUMENT TRANSFORMERS ND TRANSDUCTORS egrees of protection provided y enclosures