ANNEX IISupplementary provisions
ANNEX II Voltage ranges and time periods referred to in Article 13(1) Synchronous area Voltage range Time period for operation Continental Europe 0,90 pu-1,118 pu Unlimited 1,118 pu-1,15 pu To be specified by each TSO but not less than 20 minutes and not more than 60 minutes Nordic 0,90 pu-1,05 pu Unlimited 1,05 pu-1,10 pu 60 minutes Great Britain 0,90 pu-1,10 pu Unlimited Ireland and Northern Ireland 0,90 pu-1,118 pu Unlimited Baltic 0,90 pu-1,118 pu Unlimited 1,118 pu-1,15 pu 20 minutes The table shows the minimum time periods during which a transmission-connected demand facility, a transmission-connected distribution facility or a transmission-connected distribution system has to be capable of operating for voltages deviating from the reference 1 pu value at the connection point without disconnecting from the network where the voltage base for pu values is at or above 110 kV and up to (not including) 300 kV. Synchronous area Voltage range Time period for operation Continental Europe 0,90 pu-1,05 pu Unlimited 1,05 pu-1,10 pu To be specified by each TSO but not less than 20 minutes and not more than 60 minutes Nordic 0,90 pu-1,05 pu Unlimited 1,05 pu-1,10 pu To be specified by each TSO but not more than 60 minutes Great Britain 0,90 pu-1,05 pu Unlimited 1,05 pu-1,10 pu 15 minutes Ireland and Northern Ireland 0,90 pu-1,05 pu Unlimited Baltic 0,90 pu-1,097 pu Unlimited 1,097 pu-1,15 pu 20 minutes The table shows the minimum time periods during which a transmission-connected demand facility, a transmission-connected distribution facility or a transmission-connected distribution system has to be capable of operating for voltages deviating from the reference 1 pu value at the connection point without disconnecting from the network, where the voltage base for pu values is from 300 kV to 400 kV (including).