Deals with all aspects of electrical, mechanical and thermal safety.
BS EN 61558-2-13:2000 history
2009BS EN 61558-2-13:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers
2000BS EN 61558-2-13:2000 Safety of power transformers, power supply units and similar - Particular requirements for auto-transformers for general use