11/30244275 DC : 0
Superseded
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BS EN 60255-149 - MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL PROTECTION
Hardcopy , PDF
English
31-10-2013
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) - Simple first-order thermal
model of electrical equipment
Annex B (informative) - Basic characteristics,
calculation and measurement of thermal time
constant (tau) of industrial electrical equipment
Annex C (informative) - Thermal electrical relays
which use temperature as setting parameters
Bibliography
BS EN 60255-149
| Committee |
PEL/95
|
| DocumentType |
Draft
|
| Pages |
54
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
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