First published as part of AS 2005.2-1977.Revised and redesignated in part as AS 2005.21.1-1990, AS 2005.21.2-1990 and AS 2005.29-1990.AS 2005.21.1-1990, AS 2005.21.2-1990 and AS 2005.29-1990 jointly revised, amalgamated and redesignated as AS/NZS 60269.2.1:2001.Revised and dejointed as AS60269.2.1-2005. Originated as part of AS 2005.2-1977. Previous edition AS/NZS 60269.2.1:2001. Revised and dejointed as AS 60269.2.1-2005.