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European Definitions

Failure is a short- or long-term loss of the electric power to an area. [1]

Other International Definitions


Failure: The structure, system or component is considered to fail when it becomes incapable of functioning, whether or not this is needed at that time. [2]

National Definitions


Failure: The temporary or permanent termination of but is also used in other applications the ability of an entity to perform its required function. [3]


Guasto: Cedimento di un componente elettrico o una condizione di pericolo per persone o cose, che determina l’immediata messa fuori servizio di un elemento della Rete. Il guasto può essere: (1) transitorio, quando viene eliminato dalle sequenze automatiche di apertura e richiusura dei dispositivi di interruzione; (2) permanente in tutti gli altri casi. [4]

United States

Failure is the inability of a system or component to perform its required functions within specified performance requirements. [5]

Standard Definition


Other Definitions

Falen: het onverwacht eindigen van het juist functioneren of het niet (meer) voldoen aan vastgestelde criteria van het systeem of een gedeelte daarvan. [6]

See also


  1. Definition of an assessment framework for projects of common interest in the field of smart grids, 2014
  2. IAEA Nuclear Energy Series No. NP-T-3.12
  3. Glossary of the National Telecom Authority (NTA), Egypt
  4. Glossary Italian power operator Terna
  5. DHS/NICSS Glossary
  6. Aquo-lex - het waterwoordenboek