AS/NZS 61558.2.6:2001

Specifies safety requirements for approval and test purposes for safety isolating transformers. This Standard is an adoption with national modifications and contains the full text of IEC 61558-2-6:1997.

Replacement:This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, air-cooled safety isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency not exceeding 500 Hz, the rated output not exceeding:– 10 kVA for single-phase transformers;– 16 kVA for polyphase transformers.This standard is also applicable to safety isolating transformers without limitation of the rated output; however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier.The no-load output voltage and the rated output voltage does not exceed:50 V a.c. r.m.s. and/or 120 V ripple-free d.c.between conductors or between any conductor and earth.This standard is applicable to dry type transformers. The windings may be encapsulated or non-encapsulated.

AS 3108 first published in Australia in part as AS C126-1939.
Second edition 1958.
AS C167 first published 1962.
Revised and redesignated AS 3167-1981 (withdrawn 1987).
AS C126-1958 revised and redesignated AS 3126-1981 (withdrawn 1989).
AS 3126-1981 and AS 3167-1981 revised and redesignated AS 3108.1-1984, AS 3108.2-1984 and AS 3108.3-1984.
Revised, amalgamated and redesignated AS 3108-1990.
First published in New Zealand as NZS/AS 3108:1990.
Jointly revised and designated as Joint Standard AS/NZS 3108:1994.
Jointly revised and redesignated in part as AS/NZS 61558.2.6:2001.