PD CLC/TS 50729:2025 - Railway Applications Standard

Welcome to the future of railway technology with the PD CLC/TS 50729:2025 standard. This comprehensive document is a must-have for professionals in the railway industry, providing essential guidelines and requirements for the interface between charging infrastructure and electric traction units. Released on June 26, 2025, this standard is set to revolutionize the way we approach railway applications, ensuring efficiency, safety, and sustainability.

Overview

The PD CLC/TS 50729:2025 standard is a pivotal document that addresses the interface requirements between charging infrastructure with dedicated contact line sections and electric traction units equipped with onboard electric traction energy storages and current collectors. This standard is crucial for the seamless integration of modern electric traction systems, promoting interoperability and enhancing the performance of railway networks.

Key Features

• Standard Number: PD CLC/TS 50729:2025
• Pages: 34
• Release Date: June 26, 2025
• ISBN: 978 0 539 25812 7
• Status: Standard

Why This Standard Matters

As the railway industry continues to evolve, the need for efficient and reliable electric traction systems becomes increasingly important. The PD CLC/TS 50729:2025 standard provides a framework for the development and implementation of these systems, ensuring that they meet the highest standards of performance and safety. By adhering to this standard, railway operators can achieve:

• Enhanced Efficiency: Optimize the performance of electric traction units and charging infrastructure, reducing energy consumption and operational costs.
• Improved Safety: Establish clear guidelines for the safe operation of electric traction systems, minimizing the risk of accidents and ensuring passenger safety.
• Interoperability: Facilitate the integration of different systems and technologies, promoting seamless operation across various railway networks.
• Sustainability: Support the transition to cleaner, more sustainable energy sources, reducing the environmental impact of railway operations.

Who Should Use This Standard?

The PD CLC/TS 50729:2025 standard is designed for a wide range of stakeholders in the railway industry, including:

• Railway Operators: Ensure that your operations comply with the latest standards and regulations, enhancing the safety and efficiency of your services.
• Engineers and Designers: Access detailed guidelines for the design and implementation of electric traction systems, ensuring that your projects meet industry standards.
• Regulatory Bodies: Utilize this standard as a benchmark for evaluating the compliance of railway systems and infrastructure.
• Manufacturers: Develop products that align with the latest industry standards, ensuring compatibility and interoperability with existing systems.

Conclusion

The PD CLC/TS 50729:2025 standard is an essential resource for anyone involved in the railway industry. By providing clear and comprehensive guidelines for the interface between charging infrastructure and electric traction units, this standard ensures that railway systems are efficient, safe, and sustainable. Whether you are a railway operator, engineer, regulator, or manufacturer, this standard will help you stay ahead of the curve and meet the demands of the modern railway industry.

Embrace the future of railway technology with the PD CLC/TS 50729:2025 standard and ensure that your operations are at the forefront of innovation and excellence.

PD CLC/TS 50729:2025

This standard PD CLC/TS 50729:2025 Railway applications. Fixed installations and rolling stock. Interface requirements between charging infrastructure with dedicated contact line sections and electric traction units with onboard electric traction energy storages and current collectors is classified in these ICS categories:

• 29.280 Electric traction equipment
• 35.240.50 IT applications in industry
• 29.280 Electric traction equipment
• 35.240.50 IT applications in industry

This document specifies interface requirements between charging infrastructure with dedicated contact line sections and electric traction units with onboard electric traction energy storages and current collectors. The dedicated contact line section can be - separated from other contact line systems of electrified railway lines and fed separately, or - connected electrically and/or mechanically with contact line systems of electrified railway lines. The charging infrastructure can be used for charging the traction units with onboard electric traction energy storages at a standstill and/or when moving. This document covers the following aspects: - supply voltages and frequencies, - compatibility (e.g. avoidance of (unacceptable) unbalances) with the feeding grid (national 3 AC grid), - interaction between the vehicle traction/charging system and the electric traction charging power supply system, - transmitting required information towards driver and/or electric traction unit, - contact line system, - maximum load current, - contact line protection principles, - electrical safety, - stray current protection (in case of DC electric traction power supply systems), - protection against influence on signalling systems, and - energy measurement and settlement. This document applies to new charging infrastructure and/or new electric traction units with onboard electric traction energy storage. Although this document is primarily applicable to railways it can also be partially applied to guided mass transport systems such as: 1) tramways, and 2) elevated and underground railways. This document does not apply to charging with a plug or connector solution or inverted current collectors mounted on the infrastructure side. This document does not apply to electric road systems with overhead contact line systems.