I.S. EN 60255-8:1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
ELECTRICAL RELAYS - PART 8: THERMAL ELECTRICAL RELAYS
Hardcopy , PDF
08-10-2013
English
01-01-1998
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.
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FOREWORD
PREFACE
SECTION ONE - GENERAL
1 Scope and object
2 Definitions
SECTION TWO - REQUIREMENTS
3 Standard values
4 Accuracy
SECTION THREE - TEST METHODS
5 Tests related to operating characteristics and accuracy
6 Tests for thermal requirements
Figures
Appendix A - Characteristic curves, cold curves
Appendix B - Characteristic curves, hot curves
Appendix C - Example for determining accuracy
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Applies to dependent specified time electrical measuring relays which protect equipment from electrical thermal damage by measuring current flowing in the protected equipment.
| DevelopmentNote |
Issued on 02/02/2006. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
42
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| IEC 60255-8:1990 | Identical |
| EN 60255-8:1998 | Identical |
| EN 60255-6 : 94 AC 95 | ELECTRICAL RELAYS - MEASURING RELAYS AND PROTECTION EQUIPMENT |
| IEC 60255-6:1988 | Electrical relays - Part 6: Measuring relays and protection equipment |
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