IEC 61000-4-14:1999+A1:2001+A2:2009 applies to electrical and/or electronic equipment that have a rated input current up to 16 A per phase. Aims to establish a reference for evaluating the immunity of electric and/or electronic equipment when subjected to positive and negative low amplitude voltage fluctuations. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial power supply networks. Has the status of a Basic EMC publication. This consolidated version consists of the first edition (1999), its amendment 1 (2001) and its amendment 2 (2009).