ESTIPULACIONESCOMUNES PARA LAS NORMAS DE APARAMENTA DE ALTA TENSION.
COMMON CLAUSES FIR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS.
CLAUSES COMMUNES POUR LES NORMES DE L'APPAREILLAGE À HAUTE TENSION.
Buy on AENOR
29.120.60 / Control switchgear and controlgear and control devices
CTN 207 - Transmission and distribution of electrical energy
IEC 694:1980+A1:1985 (Identical)
It is cancelled by: UNE 21139/1M: 1996
