-
Latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement.
(dop) 2012-02-14 -
Latest date by which the national standards conflicting with the EN have to be withdrawn.
(dow) 2014-02-14
The major differences between EN 50548:2011 and DIN V VDE 0126-5 listed as below:
| Clause | DIN V VDE V0126-5 | EN 50548:2011 |
| 1 Scope Rated voltage | 1000 V | 1500 V |
| 3.26 Application class A | >50V DC or 240W | >120V DC |
| 3.28 Application class C | <50V DC or 240W | <120V DC |
| 4.2 Marking reverse current | None | With Irev |
| 4.5 Connector | VDE 0126-3 | EN 50521 |
| 4.6 CablesCables shall be flexible and the conductor shall be class 5 according to EN 60228. | Without such requirement | With such requirement |
| 4.14.2 Rated impulse voltage for reinforced insulation | None | With (12kV for rated voltage 1000V) |
| 5.1.2 Test specimens | 16pcs | 17pcs (the last one is for reverse current test) |
| 5.2.6 Preparation for specimen of reverse current test | None | With (terminal for cell connection shall be short-circuit) |
| 5.3.13 Ball pressure test.Higher temperature of insulation material near diode or current carrying part | No considered | Considered |
| 5.3.16 Wet leakage current test | Surface tension of solution is considered | Surface tension of solution is not considered |
| 5.3.16 Wet leakage current test (for connector) | Connector shall be immersed during test | Connector shall be thoroughly sprayed |
| 5.3.17 Humidity-freeze-test | No RH control below 25°C | No RH control below 85°C |
| 5.3.18 Bypass diode thermal test | Insulation temperature is not measured | Insulation temperature shall not be measured |
| 5.3.23 Reverse current test at junction box | None | Reverse current for 2h under 85°C |
Source:
http://tuv-sud.cn/technical-news-download-file/items/en-50548-was-approved-by-cenelec-on-14-feb-2011.html
