IEC 61558-2-6:2009 PDF

Scope: Replacement: This part 2 of IEC 61558 applies to stationary or portable@ single-phase or polyphase@ aircooled 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: ?C 10 kVA for single-phase transformers; ?C 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.?

IEC 61558-2-6:2009 history

0000 IEC 61558-2-6:2021 RLV
2009 IEC 61558-2-6:2009 Safety of transformers, reactors, power supply units and similar products for voltages up to 1100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
1997 IEC 61558-2-6:1997 Safety of power transformers, power supply units and similar - Part 2: Particular requirements for safety isolating transformers for general use