3.

A transmission system shall be in the emergency state when at least one of the following conditions is fulfilled: there is at least one a violation of a TSO's operational security limits defined in accordance with Article 25; frequency does not meet the criteria for the normal state and for the alert state defined in accordance with paragraphs 1 and 2; at least one measure of the TSO's system defence plan is activated; there is a failure in the functioning of tools, means and facilities defined in accordance with Article 24(1), resulting in the unavailability of those tools, means and facilities for longer than 30 minutes.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-04 · Text as adopted (Official Journal); later amendments are not incorporated in this text.