EN 50438 - 2013 - Annex A - 17 Norway

The default setting of 4.6.2, Table 4 are applicable excepted as follows:

Footnote a for Norway:
–  a Over-voltage – stage 1:
    —- 1 min mean value corresponding to Regulation 1557.

(national deviation due to regulation Reg. N° 1557 of 30 November 2004: Regulations relating to the quality of supply in the Norwegian power system).