States the characteristics of the equipment, the conditions with which the equipment shall comply (operation and behaviour in normal service, operation and behaviour in case of specified abnormal conditions, dielectric properties) the test for confirming that these conditions have been met and the methods to be adopted for these tests; the information to be marked on the equipment or made available by the manufacturer, e.g. in the catalogue. This publication supersedes IEC 60408 (1985) and should be read in conjunction with IEC 60947-1 (1988). The contents of the corrigenda of July 1999 and August 2001 have been included in this copy. This consolidated version consists of the second edition (1999), its amendment 1 (2001) and its amendment 2 (2005). Therefore, no need to order amendments in addition to this publication.