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11/30244275 DC : 0

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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BS EN 60255-149 - MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL PROTECTION

Available format(s)

Hardcopy , PDF

Language(s)

English

Superseded date

31-10-2013

Superseded by

BS EN 60255-149:2013

€22.71
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Summarise this standard

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Superseded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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A newer version of this standard is available.

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