Frequency quality evaluation data
Article 130
1. The frequency quality evaluation data shall be: (a) for the synchronous area: (i) the instantaneous frequency data; and (ii) the instantaneous frequency deviation data; (b) for each LFC block of the synchronous area, the instantaneous FRCE data. 2. The measurement accuracy of the instantaneous frequency data and of the instantaneous FRCE data, where measured in Hz, shall be 1 mHz or better.