First published as part of AS 2005.3-1978.Second edition 1980.Revised and redesignated as AS 2005.30-1991.Jointly revised and redesignated in part as AS/NZS 60269.3.1:2002.Revised and dejointed as AS60269.3.1-2005. Originated as part of AS 2005.3-1978. Previous edition AS/NZS 60269.3.1:2002. Revised and dejointed as AS 60269.3.1-2005.