I.S. EN 61557-7:2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1 000 V A.C. AND 1 500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 7: PHASE SEQUENCE
Hardcopy , PDF
07-06-2022
English
01-01-2007
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.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Marking and operating instructions
5.1 Marking
5.2 Operating instructions
6 Tests
Annex A (normative) Illustrations for mechanical tests
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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