ESQUEMAS, DIAGRAMAS Y CUADROS UTILIZADOS EN ELECTROTECNIA. SIGNOS DE IDENTIFICACION DE LOS ELEMENTOS
DIAGRAMS, CHARTS, TABLES: ITEM DESIGNATION.
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29.020 / Electrical engineering in general
CTN 200 - Basic electrical standards
HD 246.2 S1:1977 (Identical)
IEC 113-2:1971 (Identical)
It is cancelled by: UNE-EN 61346-1:1998
