# Commission Regulation (EU) 2016/1447 of 26 August 2016 establishing a network code on requirements for grid connection of high voltage direct current systems and direct current-connected power park modules (Text with EEA relevance), Annex VI: Frequency ranges and time periods referred to in Article 39(2)(a)

Extent: E+W+S+N.I.

Frequency range
Time period for operation
47.0 Hz-47.5 Hz
20 seconds
47.5 Hz-49.0 Hz
90 minutes
49.0 Hz-51.0 Hz
Unlimited
51.0 Hz-51.5 Hz
90 minutes
51.5 Hz-52.0 Hz
15 minutes
Table 8: Minimum time periods for the 50 Hz nominal system for which a PPM shall be capable of operating for different frequencies deviating from a nominal value without disconnecting from the network.

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Source: https://www.legislation.gov.uk/eur/2016/1447/annex/VI (the official version)
Page: https://openlegislation.uk/eu-regulation-2016-1447/annex-VI
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.