IEC 61800-3:2004+A1:2011 specifies electromagnetic compatibility (EMC) requirements for power drive systems (PDSs). A PDS is defined in 3.1. These are adjustable speed a.c. or d.c. motor drives. Requirements are stated for PDSs with converter input and/or output voltages (line-to-line voltage), up to 35 kV a.c. r.m.s. This consolidated version consists of the second edition (2004) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.