The simple answer is that BS EN 50126-2 is copyrighted intellectual property. It is sold as a commercial product by national standards bodies to fund the costly process of research, development, and consensus-building among international experts.
The global railway industry relies heavily on complex electrical, electronic, and programmable technologies. To ensure these systems function without endangering lives or infrastructure, the European Committee for Electrotechnical Standardization (CENELEC) developed the EN 50126 framework. bs en 50126-2 pdf free download
Unauthorized distribution violates copyright laws. Summary of the 2024 Amendments The simple answer is that BS EN 50126-2