• IEC 60050-821:2017

    Current The latest, up-to-date edition.

    International Electrotechnical Vocabulary (IEV) - Part 821: Signalling and security apparatus for railways

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French

    Published date:  20-11-2017

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    INTRODUCTION - Principles and rules followed
    1 Scope
    2 Terms and definitions
    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
    821-11 Communication in transmission systems
    821-12 Reliabilty, availability, maintainability
           and safety

    Abstract - (Show below) - (Hide below)

    IEC 60050-821:2017 gives the general terminology relating to signalling and security apparatus for railways, as well as general terms pertaining to specific applications and associated technologies. This new edition reviews and complements the previous one. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

    It has the status of a horizontal standard in accordance with IEC Guide 108.

    General Product Information - (Show below) - (Hide below)

    Committee TC 1
    Development Note Supersedes IEC 60050-31 (03/2001)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
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