| Publication CODE |
Title |
| NBN EN 50708-3-4:2022 (2022-09) |
POWER TRANSFORMERS - ADDITIONAL EUROPEAN REQUIREMENTS - PART 3-4: LARGE POWER TRANSFORMER - SPECIAL TESTS FOR CORRUGATED TANK AND RADIATORS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
29.00 €
|
9. |
Description
This document describes a special test for tanks of liquid-immersed transformers which during service are hermetically sealed and fully filled with liquid and volume change of the liquid due to temperature change compensated by elastic deformation of the cooling element for Large Power Transformers having a rated power greater than 3150 kVA.
|
| Class |
C
|
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.
|
|
|
| Status |
IEC PUBLICATION |
| Situation |
Currently active
|
|
| Committee |
CLC/TC 14
Power transformers
|
| BEC Approval |
2022-08-15 |
| NBN Approval |
2022-09-28 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2022-08-15 |
| Date of announcement (d.o.a.) |
2023-02-15 |
| Date of publication (d.o.p.) |
2023-08-15 |
| Date of withdrawal former edition (d.o.w.) |
2025-08-15 |
| IEC file modification date |
2022-09-24 |
|
