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Publication details

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.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
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.

DE version
 EN version
 FR version
Status
Status Registered trilingual Belgian standard EN or FR or DE
Situation Currently active
Replaces  NBN EN 60255-8:1998
Origin
Committee TC 95
MEASURING RELAYS AND PROTECTION EQUIPMENT
Responsible Ir DELENS Marc
Approval
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
Correspondences with international standards
Relation International standard Date
is identical to EN 60255-149:2013 2013-10-04
is identical to IEC 60255-149:2013/ed. 1.0 2013-07-30
Relations to belgian/foreign publications
Type Origin Code Date
Standard Foreign IEC 60050 serie
Standard Belgium NBN EN 60085
Standard Belgium NBN EN 60255-1
Standard Belgium NBN EN 61850-7-4