Publication CODE |
Title |
NBN EN 60255-149:2013 (2013-10) |
MEASURING RELAYS AND PROTECTION EQUIPMENT
PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL ELECTRICAL RELAYS |
|
Price Excl. VAT |
Total number of pages, tables and drawings |
25.00 €
|
3 P.. |
Description
Specifies minimum requirements for thermal protection relays.
This standard includes specification of the protection function, measurement characteristics and test methodologies. The object is to establish a common and reproducible reference for evaluating dependent time relays which protect equipment from thermal damage by measuring a.c. current flowing through the equipment. Complementary input energizing quantities such as ambient, coolant, top oil and winding temperature may be applicable for the thermal protection specification set forth in this standard. This standard covers protection relays based on a thermal model with memory function.
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Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
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Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 60255-149:2013.
For the series NBN EN 50XXX, the standards are however complete.
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DE version
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EN version
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FR version
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|
Status |
Registered trilingual Belgian standard EN or FR or DE |
Situation |
Currently active
Replaces
NBN EN 60255-8:1998
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|
Committee |
TC 95
MEASURING RELAYS AND PROTECTION EQUIPMENT
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Responsible |
Ir DELENS Marc
|
BEC Approval |
2013-09-03 |
NBN Approval |
2013-12-19 |
Belgian Official Journal |
2014-01-28 |
Registration |
145005 |
ICS-Code (International Standards Classification) |
29.120.70
|
NBN Status |
New |
|
Date of ratification (d.o.r.) |
2013-10-04 |
Date of availability (d.a.v.) |
2013-10-04 |
Date of announcement (d.o.a.) |
2013-12-03 |
Date of publication (d.o.p.) |
2014-06-03 |
Date of withdrawal former edition (d.o.w.) |
2016-09-03 |
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