I.S. EN 50578:2013
Current
The latest, up-to-date edition.
RAILWAYS APPLICATIONS - DIRECT CURRENT SIGNALLING RELAYS
Hardcopy , PDF
English
01-01-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Essential requirements of the relays and their construction
Bibliography
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