NF EN 60051-3/A1

Direct acting indicating analogue electrical measuring instruments and their accessories. Part 3 : special requirements for wattmeters and varmeters.

La norme NF EN 60051-3 (indice de classement C 42-102) traite des prescriptions particulières pour les wattmètres et les varmètres. Le présent amendement apporte une précision supplémentaire sur la différence entre deux tensions simples quelconques et entre deux tensions composées quelconques, sujet sur lequel la norme de base manquait de clarté.

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