IEC 60050-445-ed.2.0

Annotation of standard text IEC 60050-445-ed.2.0 :

IEC 60050-445:2010 defines terms related to specified-time relays. This second edition cancels and replaces the first edition published in 2002 and constitutes a technical edition. This new edition has been revised in order to: - incorporate terms more commonly used by industry; - incorporate timing charts to help explain definitions involving a sequence of operations. It has the status of a horizontal standard in accordance with IEC Guide 108. La CEI 60050-445:2010 definit les termes relatifs aux relais de tout ou rien a temps specifie. Cette deuxieme edition annule et remplace la premiere edition parue en 2002. Cette edition constitue une revision technique. Cette nouvelle edition comporte: - des termes plus couramment employes par lindustrie; - des chronogrammes pour aider a la comprehension des definitions comportant une sequence doperations. Elle a le statut de norme horizontale conformement au Guide IEC 108.