Electronic equipment used in rolling stock operates in one of the most unforgiving environments on earth. BS EN 50155:2021 provides the rigorous framework necessary to ensure that onboard electronics remain functional despite constant motion and electrical instability.
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While BS EN 50155 is the primary umbrella standard for railway electronics, it functions through a network of specialized sub-standards:
This certification is mandatory for any electronic system integrated into the train’s architecture, including:
The testing protocol is divided into type tests and routine tests to verify every layer of the hardware’s integrity:
To ensure international acceptance by railway operators and rolling stock manufacturers (OEMs), testing must be conducted in ISO/IEC 17025 accredited laboratories. In India, NABL (National Accreditation Board for Testing and Calibration Laboratories) accreditation is essential for ILAC MRA recognition, ensuring your test reports are valid worldwide.
The duration of the testing cycle depends heavily on the product's complexity and the specific environmental classes required:
To successfully conclude a type test, the following are typically required:
The cost of BS EN 50155 testing is modular, based on your product’s intended mounting location (Body vs. Bogie):
A seamless certification process requires a comprehensive technical file:
This certification ensures that electronic equipment remains reliable and safe under the extreme mechanical, electrical, and environmental stresses unique to railway rolling stock applications over a long lifespan.
Yes, global railway operators and OEMs require this standard to verify that onboard systems can withstand constant vibrations, voltage fluctuations, and wide temperature ranges without failing during operation.
The 2021 update introduces more rigorous classifications for environmental conditions, refined testing procedures for supply interruptions, and better alignment with integrated mechanical stress standards like EN 61373.
Standard industrial electronics often fail in rail environments due to lower tolerance for shock and power surges. Only certified units guarantee the specialized resilience required for passenger safety.
Failures typically indicate structural weaknesses. We provide a detailed gap analysis to help you harden the mechanical design, ensuring your hardware meets the specific bogie or body-mount requirements.
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