British Standards Document
BS EN 61558-2-16
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V. Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units

https://doi.org/10.3403/30046206U

BS EN 61558-2-16 is maintained by PEL/96. The current release of this standard is:

BS EN 61558-2-16:2009+A1:2013 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V. Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units

https://doi.org/10.3403/30046206 (published 31/01/2010)

This standard is available from the following sources:

Other historical versions of this standard document also exist: