Annex I Frequency ranges and time periods referred to in Article 12(1)
United Kingdom
| Synchronous area | Frequency range | Time period for operation |
|---|---|---|
| F1. . . | . . . | . . . |
| . . . | . . . | |
| . . . | . . . | |
| . . . | . . . | |
| F2. . . | . . . | . . . |
| . . . | . . . | |
| . . . | . . . | |
| . . . | . . . | |
| Great Britain | F347.0 Hz- F447.5 Hz | 20 seconds |
| 47.5 Hz- F548.5 Hz | 90 minutes | |
| 48.5 Hz- F649.0 Hz | To be specified by each TSO, but not less than 90 minutes | |
| 49.0 Hz- F751.0 Hz | Unlimited | |
| 51.0 Hz- F851.5 Hz | 90 minutes | |
| 51.5 Hz- F952.0 Hz | 15 minutes | |
| F10. . . | . . . | . . . |
| . . . | . . . | |
| . . . | . . . | |
| . . . | . . . | |
| F11. . . | . . . | . . . |
| . . . | . . . | |
| . . . | . . . | |
| . . . | . . . |
The table shows the minimum time periods for which a transmission-connected demand facility, a transmission-connected distribution facility or a distribution system has to be capable of operating on different frequencies, deviating from a nominal value, without disconnecting from the network.
Annotations
Textual amendments
- F1
Words in Annex 1 omitted (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(a)
- F2
Words in Annex 1 omitted (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(b)
- F3
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(i)
- F4
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(ii)
- F5
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(iii)
- F6
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(iv)
- F7
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(v)
- F8
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(vi)
- F9
Word in Annex 1 substituted (31.12.2020) by The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(c)(vii)
- F10
Words in Annex 1 omitted (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(d)
- F11
Words in Annex 1 omitted (31.12.2020) by virtue of The Electricity and Gas (Internal Markets and Network Codes) (Amendment etc.) (EU Exit) Regulations 2020 (S.I. 2020/1006), reg. 1(2), Sch. 2 para. 25(e)