Reliability

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Definitions

European Definitions

EU JRC
Reliability HDVC is a measure of the capability of the HVDC link to transmit power above some minimum defined value at any point in time under normal operating conditions. [1]
Reliability is normally expressed as the number of times in one year the scheme is incapable of transmitting power above a minimum defined value. This inability to transmit above a defined power level is termed Forced Outage Rate (F.O.R.).

International defintions

IAEA

Reliability: the ability of an item to perform a required function under given conditions for a given time interval. [2]

National Definitions

Brazil

Confiabilidade:
1. Capacidade de desempenho de componentes, de equipamentos ou sistemas, em função de padrões preestabelecidos.
2. Probabilidade de um equipamento ou sistema desempenhar correta e satisfatoriamente suas funções específicas, por um período de tempo determinado, sob um conjunto estabelecido de condições de operações. É uma medida de qualidade e depende da variável tempo. [3]


Canada

AESO
Reliability (power grid) means the combination of adequacy and system security. [4]

Czech Republic

Spolehlivost: Vlastnost konzistentního zamýšleného chování nebo výsledků. [5]

Reliability is an attribute of consistent intentional behaviour or results. [6]


Egypt

Reliability: The ability of an item to perform a required function under stated conditions for a specified period of time. [7]

Reliability: The probability that a functional unit will perform its required function for a specified interval under stated conditions. [7]

Reliability: The continuous availability of communication services to the general public, and emergency response activities in particular, during normal operating conditions and under emergency circumstances with minimal disruption. [7]


Italy

Affidabilità: La combinazione di due condizioni: (1) Disponibilità: idoneità a far fronte staticamente ed in ogni istante alle richieste globali di potenza ed energia elettrica dei clienti nei punti di connessione, tenendo in conto i fuori servizi programmati e forzati dei componenti del sistema elettrico, (2) Sicurezza: idoneità ad affrontare i disturbi improvvisi come cortocircuiti o perdita forzata di componenti del sistema elettrico. Tale aspetto considera quindi proprio gli effetti delle transizioni non affrontate con il precedente criterio. [8]


Japan

信頼性: 定の期間、宣言された条件下において要求された機能を行うシステムの能力.

(Cyber) Reliability is the ability of a system to perform a required function under stated conditions for a specified period of time. [9]

Standard Definition

IETF

The ability of a system to perform a required function under stated conditions for a specified period of time. [10]

ISO/IEC 27000:2014

Reliability is the property of consistent intended behaviour and results. [11]


See also

Notes

  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. GLOSSÁRIO DE DEFESA CIVIL ESTUDOS DE RISCOS E MEDICINA DE DESASTRES, Ministério da Integração Nacional, Brazil
  4. AESO Glossary
  5. Výkladový slovník kybernetické bezpečnosti (2013)
  6. Act No. 181 of 23 July 2014 On Cyber Security and Change of Related Acts (Act on Cyber Security)
  7. 7.0 7.1 7.2 Glossary of the National Telecom Authority (NTA), Egypt
  8. Glossary Italian power operator Terna
  9. RFC2828 (Japanese translation)
  10. IETF RFC449 Internet Security Glossary 2
  11. ISO/IEC 27000:2014, Information technology -- Security techniques -- Information security management systems -- Overview and vocabulary