ANNEX ISupplementary provisions
ANNEX I Frequency ranges referred to in Article 11 Frequency range Time period for operation 47,0 Hz-47,5 Hz 60 seconds 47,5 Hz-48,5 Hz To be specified by each relevant TSO, but longer than established times for generation and demand according to Regulation (EU) 2016/631 and Regulation (EU) 2016/1388 respectively, and longer than for DC-connected PPMs according to Article 39 48,5 Hz-49,0 Hz To be specified by each relevant TSO, but longer than established times for generation and demand according to Regulation (EU) 2016/631 and Regulation (EU) 2016/1388 respectively, and longer than for DC-connected PPMs according to Article 39 49,0 Hz-51,0 Hz Unlimited 51,0 Hz-51,5 Hz To be specified by each relevant TSO, but longer than established times for generation and demand according to Regulation (EU) 2016/631 and Regulation (EU) 2016/1388 respectively, and longer than for DC-connected PPMs according to Article 39 51,5 Hz-52,0 Hz To be specified by each relevant TSO, but longer than for DC-connected PPMs according to Article 39 Table 1 : Minimum time periods an HVDC system shall be able to operate for different frequencies deviating from a nominal value without disconnecting from the network.