I.S. EN 60255-127:2014
Current
The latest, up-to-date edition.
MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 127: FUNCTIONAL REQUIREMENTS FOR OVER/UNDER VOLTAGE PROTECTION
Hardcopy , PDF
English
01-01-2014
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
1 Scope and object
2 Normative references
3 Terms and definitions
4 Specification of the function
5 Performance specification
6 Functional test methodology
7 Documentation requirements
Annex A (informative) - Reset time determination
for relays with trip output only
Bibliography
Annex ZA (normative) - Normative references to
international publications with their
corresponding European publications
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