en.Wedoany.com Reported - Recently, the International Electrotechnical Commission (IEC) officially published the international standard IEC 60310:2026 Railway applications - Traction transformers and inductors on board rolling stock. This standard was led by CRRC Corporation Limited, jointly completed with technical experts from multiple countries around the world, marking a significant breakthrough for China in the field of international standard-setting for core rail transit electrical equipment, and demonstrating CRRC's technical strength and standard-setting influence as a global industry leader.
The newly published international standard establishes globally unified technical specifications for traction transformers, auxiliary transformers, and inductors used in rail transit rolling stock, applicable to EMUs, electric locomotives, and related auxiliary equipment. The standard systematically specifies key performance indicators including temperature rise, insulation, partial discharge, losses, vibration, and noise, fully considering the complex operating environments in the rail transit sector such as high temperature, high humidity, strong electromagnetic interference, and frequent load shocks. It provides an authoritative technical basis for the design, manufacturing, testing, and mutual recognition of such core components worldwide, and will effectively enhance the reliability, safety, and durability levels of the equipment.
Traction transformers, auxiliary transformers, and inductors are core components of the traction drive and auxiliary power supply systems of rolling stock, directly related to the train's power performance, operational safety, and overall reliability. The successful leadership of CRRC in formulating this international standard reflects China's profound technical accumulation in this field.
As the world's largest supplier of rail transit equipment, CRRC continues to contribute "Chinese wisdom" in the field of international standards. To date, among the 128 current international standards published by the IEC Technical Committee on Railway Applications (IEC/TC9), 14 have been led by CRRC, covering multiple core areas such as train wireless backbone networks, traction transformers, high-voltage apparatus, and fuel cell systems. The publication of this new standard is another important achievement for CRRC in leading technology and product "going global" through standard output, deeply integrating into and shaping the global rail transit standard system.
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