1. BS EN 61558+AC0-2+AC0-12:2011. Safety of transformers, reactors, power supply units and combinations there of +AC0- Part 2+AC0-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage

2. BS EN 61558+AC0-2+AC0-13:2009. Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V +AC0- Part 2+AC0-1

3. BS EN 61558+AC0-2+AC0-14:2013. Safety of transformers, reactors, power supply units and combination thereof +AC0- Part 2+AC0-14: Particular requirements and tests for variable transformers and power supply units incorporating variable transformers

4. BS EN 61558+AC0-2+AC0-15:2012. Safety of transformers, reactors, power supply units and combinations there of +AC0- Part 2+AC0-15: Particular requirements and tests for isolating transformers for the supply of medical locations

5. BS EN 61558+AC0-2+AC0-16:2009 +- A1:2013. Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V +AC0- Part 2+AC0-16

6. BS EN 61558+AC0-2+AC0-19:2001 (IEC 61558+AC0-2+AC0-19:2000). Safety of power transformers, power supply units and similar devices +AC0- Part 2+AC0-19: Particular requirements for perturbation attenuation transformers

7. BS EN 61558+AC0-2+AC0-2:1998. Safety of power transformers, power supply units and similar +AC0- Part 2+AC0-2: Particular requirements for control transformers

8. BS EN 61558+AC0-2+AC0-20:2011. Safety of transformers, reactors, power supply units and combinations thereof +AC0- Part 2+AC0-20: Particular requirements and tests for small reactors

9. BS EN 61558+AC0-2+AC0-23:2010. Safety of transformers, reactors, power supply units and combinations there of +AC0- Part 2+AC0-23:Particular requirements and tests for transformers and power supply units for construction sites

10. BS EN 61558+AC0-2+AC0-26:2013. Safety of transformers, reactors, power supply units and combinations there of +AC0- Part 2+AC0-26: Particular requirements and tests for transformers and power supply units for saving energy and other purposes