BS IEC 60050-821:1998
Current
The latest, up-to-date edition.
International electrotechnical vocabulary Signalling and security apparatus for railways
Hardcopy , PDF
English
05-15-1999
FOREWORD
821-01 General concepts and terms
821-02 Signals
821-03 Train detection
821-04 Operation and detection of points and other
rail-mounted equipment
821-05 Interlocking and signal box equipment
821-06 Block signalling system
821-07 Level crossing protection
821-08 Automatic train protection
821-09 Automatic train operation
821-10 Miscellaneous
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