Medida de los campos eléctricos a frecuencia industrial.
MEASUREMENT OF POWER-FRECUENCY ELECTRIC FIELDS.
MESURE DES CHAMPS ÉLECTRIQUES À FRÉQUENCE INDUSTRIELLE.
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17.220.20 / Measurement of electrical and magnetic quantities
CTN 207/SC 42 - High-voltage testing techniques
IEC 60833:1987 (Identical)
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