Railway applications. Fixed installations. Protection principles for AC and DC electric traction systems Ingestion-build-93833 BS EN 60870-6-502 define a

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Railway applications. Fixed installations. Protection principles for AC and DC electric traction systems Ingestion-build-93833 BS EN 60870-6-502 define a1 Scope This European Standard applies to the electrical protection system, provided for AC and DC electric traction systems. It: establishes railway specific protection principles; describes the railway specific protection system functionality; specifies minimum functional requirements and informative examples of their application; establishes limitations of the protection system and the acceptability of residual risks; specifies principles for