SN EN 60947-5-4 : 1997
Current
The latest, up-to-date edition.
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - SECTION 4: METHODS OF ASSESSING THE PERFORMANCE OF LOW-ENERGY CONTACTS - SPECIAL TESTS
12-01-2013
INTRODUCTION
1 Scope and object
2 Normative references
3 Definitions and list of symbols used
3.1 Definitions
3.2 List of symbols used
4 General principles
5 General test method
6 General characteristics
6.1 Measurement methods
6.2 Sequences of operations
6.3 Electrical characteristics
6.4 Characteristics of operation
7 Characterization of defects
7.1 Basic method
7.2 Monitoring the load (figure 3)
8 Ambient conditions
8.1 Normal conditions
8.2 Preconditioning
8.3 Particular conditions
9 Methods of reporting
9.1 Failure criterion
9.2 Reporting the failure rate
10 Information to be provided in the test report
Annex A (normative) Information to be supplied by the
manufacturer
Annex ZA (normative) Normative references to
international publications with their
corresponding European publications
Bibliography
Applies to separable contacts used in the utilisation area considered such as switching elements for control circuits, considering two rated voltage areas.
| DocumentType |
Standard
|
| PublisherName |
Swiss Standards
|
| Status |
Current
|
| Standards | Relationship |
| EN 60947-5-4:2003 | Identical |
| NF EN 60947-5-4 : 2004 | Identical |
| DIN EN 60947-5-4 : 2005 | Identical |
| BS EN 60947-5-4:2003 | Identical |
| IEC 60947-5-4:2002 | Identical |
| UNE-EN 60947-5-4:2005 | Identical |
| I.S. EN 60947-5-4:2003 | Identical |
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