| Publication CODE |
Title |
| IEC 60255-149:2013 (2013-07) |
MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL ELECTRICAL RELAYS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
286.00 €
|
93. |
Description
IEC 60255-149:2013 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)
|
| Committee |
TC 95
MEASURING RELAYS AND PROTECTION EQUIPMENT
|
| Responsible |
Ir DELENS Marc
|
| BEC Approval |
2013-07-30 |
| ICS-Code (International Standards Classification) |
29.120.70
|
| NBN Status |
New |
|
| IEC publication date |
2013-07-30 |
| IEC stability date |
2020-12-31 |
| IEC file modification date |
2013-07-26 |
| IEC last modification date |
2019-01-09 |
|
