BS EN IEC 61558-2-13:2025

Safety of Transformers, Reactors, Power Supply Units and Combinations Thereof

Particular Requirements and Tests for Auto-Transformers and Power Supply Units Incorporating Auto-Transformers for General Applications

Introducing the BS EN IEC 61558-2-13:2025, a comprehensive standard that sets the benchmark for safety in the design and operation of transformers, reactors, power supply units, and their combinations. This standard is essential for manufacturers, engineers, and safety professionals who are involved in the development and application of auto-transformers and power supply units incorporating auto-transformers for general applications.

Released on March 19, 2025, this standard is the latest in the series, ensuring that you are up-to-date with the most current safety requirements and testing procedures. With a total of 20 pages, it provides detailed guidelines and specifications that are crucial for maintaining high safety standards in electrical equipment.

Key Features:

• Standard Number: BS EN IEC 61558-2-13:2025
• ISBN: 978 0 539 18785 4
• Status: Standard

This standard is part of the IEC 61558 series, which is globally recognized for its rigorous approach to safety in electrical transformers and power supply units. The BS EN IEC 61558-2-13:2025 specifically addresses the particular requirements and tests for auto-transformers and power supply units that incorporate auto-transformers, making it an indispensable resource for ensuring compliance with international safety standards.

Why Choose BS EN IEC 61558-2-13:2025?

Auto-transformers and power supply units are critical components in a wide range of applications, from industrial machinery to consumer electronics. Ensuring their safety and reliability is paramount, and the BS EN IEC 61558-2-13:2025 provides the necessary framework to achieve this. By adhering to this standard, you can:

• Enhance the safety and performance of your electrical equipment.
• Ensure compliance with international safety regulations.
• Reduce the risk of electrical hazards and failures.
• Improve the reliability and longevity of your products.

Comprehensive Testing Procedures

The BS EN IEC 61558-2-13:2025 includes detailed testing procedures that are designed to evaluate the safety and performance of auto-transformers and power supply units. These tests cover a wide range of parameters, including thermal performance, electrical insulation, and mechanical strength. By following these procedures, manufacturers can ensure that their products meet the highest safety standards and are fit for use in a variety of applications.

Global Recognition and Applicability

As part of the IEC 61558 series, this standard is recognized worldwide, making it an essential resource for companies that operate in international markets. By complying with the BS EN IEC 61558-2-13:2025, you can demonstrate your commitment to safety and quality, enhancing your reputation and competitiveness in the global marketplace.

Who Should Use This Standard?

The BS EN IEC 61558-2-13:2025 is designed for a wide range of professionals, including:

• Electrical engineers and designers involved in the development of transformers and power supply units.
• Quality assurance and safety professionals responsible for ensuring compliance with safety standards.
• Manufacturers of electrical equipment seeking to enhance the safety and reliability of their products.
• Regulatory bodies and testing laboratories involved in the certification and testing of electrical equipment.

Conclusion

The BS EN IEC 61558-2-13:2025 is an essential standard for anyone involved in the design, manufacture, or testing of auto-transformers and power supply units. By providing comprehensive guidelines and testing procedures, it ensures that these critical components meet the highest safety standards, reducing the risk of electrical hazards and enhancing the reliability of your products. Stay ahead of the curve and ensure compliance with this indispensable standard.

BS EN IEC 61558-2-13:2025

This standard BS EN IEC 61558-2-13:2025 Safety of transformers, reactors, power supply units and combinations thereof is classified in these ICS categories:

• 29.180 Transformers. Reactors

This part of IEC 61558 deals with the safety of auto-transformers for general applications and power supply units incorporating auto-transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here onward, the term transformer covers auto-transformers for general applications and power supply units incorporating auto-transformers for general applications. For power supply units (linear) this document is applicable. For switch mode power supply units IEC 61558-2-16 is applicable. This document is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) independent or associated dry- type transformers. The windings may be encapsulated or non-encapsulated. The rated supply voltage does not exceed 1 000 V AC, and the rated supply frequency and the internal operating frequencies do not exceed 500 Hz. The core power does not exceed: - 2 kVA for single-phase transformers; - 10 kVA for polyphase transformers. The rated output does not exceed: - 40 kVA for single-phase transformers; - 200 kVA for polyphase transformers. This document is applicable to transformers without limitation of the core power and the rated output both being subject to an agreement between the purchaser and the manufacturer. Where applicable, the no-load output voltage or the rated output voltage does not exceed 1 000 V AC or 1 415 V ripple-free DC. For independent transformers, the no-load output voltage and the rated output voltage is not less than 50 V AC or 120 V ripple-free DC. This document is not applicable to external circuits and their components intended to be connected to the input terminals and output terminals of the transformers. NOTE 2 Transformers covered by this document are used only in applications where no insulation between circuits is required by the installation rules or by the end product standard. Attention is drawn to the following: - for transformers intended to be used in vehicles, on board ships, and aircraft, additional requirements (from other applicable standards, national rules, etc.); - measures to protect the enclosure and the components inside the enclosure against external influences such as fungus, vermin, termites, solar-radiation, and icing; - the different conditions for transportation, storage, and operation of the transformers; - additional requirements in accordance with other appropriate standards and national rules may be applicable to transformers intended for use in special environments. Future technological development of transformers may necessitate a need to increase the 202 upper limit of the frequencies. Until then this document may be used as a guidance document. This GROUP SAFETY PUBLICATION focusing on SAFETY guidance is primarily intended to be used as a PRODUCT SAFETY STANDARD for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products similar to those mentioned in the scope of this GROUP SAFETY PUBLICATION, in accordance with the principles laid down in IEC Guide 104 and lSO/lEC Guide 51. One of the RESPONSIBILITIES of a TC is, wherever applicable, to make use of BSPs and/or GSPs in the preparation of its publications.