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CEI EN 61025

CEI Classification: 56-31

Analisi ad albero delle avarie
standard
CEI
CEI
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Publication Date: 2007-12
ValidFrom: 2008-02
Language: EN
Pages: 60
Issue Num.:  9150 E
Commitee: CEI-CT56
L’analisi ad albero delle avarie (FTA) è un esame logico e sistematico di un’entità per identificare ed analizzare condizioni, cause, probabilità di accadimento e conseguenze di avarie potenziali.
La presente Norma descrive la metodologia FTA e ne fornisce le linee guida secondo i seguenti passi logici:
- definizione dei principi di base (modellazione matematica e relazione con altre tecniche di modellazione di affidabilità);
- definizione del percorso da seguire;
- identificazione di appropriate assunzioni, eventi e modi di guasto;
- identificazione e descrizione di segni grafici comunemente usati.
Rispetto alla precedente edizione, di cui la presente Norma costituisce revisione tecnica, sono state apportate, tra le altre, le seguenti modifiche principali:
- aggiunte spiegazioni dettagliate delle metodologie;
- aggiunti aspetti quantitativi e di affidabilità;
- estesa la relazione con altre tecniche di fidatezza;
- aggiunti esempi di analisi e metodi FTA;
- aggiornati i segni grafici attualmente in uso;
- rivista la procedura di analisi per tener conto del miglioramento di affidabilità dei prodotti nella fase di sviluppo di un prodotto, di un processo o di un sistema.
Questa Norma viene pubblicata dal CEI nella sola lingua inglese in quanto particolarmente mirata a settori specialistici.
La presente Norma recepisce il testo originale inglese della Pubblicazione IEC.

Relations

Replaces: CEI 56-31

See also

EN 61025:2007
IEC 61025:2006

International Coding Standard (ICS)

21.020
Characteristics and design of machines, apparatus, equipment
* Including reliability, dependability, maintainability, durability, etc.
* Safety of machinery, see 13.110
03.120.30
Application of statistical methods
03.120.01
Quality in general
* Including general aspects related to reliability and maintainability
03.120.99
Other standards related to quality

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ICS

International Classification for Standards (ICS) is an international classification system for technical standards.

The ICS is a hierarchical classification organized on three levels.

Level 1 covers the main fields of activity in standardization, e.g. road vehicle engineering, agriculture, metallurgy.

Each field has a two-digit notation, e.g.

  43    Road Vehicle Engineering

The main fields are subdivided into groups (level 2). The notation of a group consists of the field notation and a three-digit group number, separated by a point, e.g.

  43.040    Road vehicle systems

Some groups are further divided into sub-groups (level 3). The notation of a sub-group consists of the group notation and a two-digit number, separated by a point, e.g.

  43.040.20 Lighting, signaling and warning devices

You can identify the ICS code of your interest by typing the code or a keywordword in the dropdown ICS field, and by selecting one of the filtered results.

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You should use this option when you can not find the desired result with the standard approach and it is necessary to extend the scope of the search: by increasing the number of results, you will increase the number of non-relevant elements, as well.