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Normas BSI – AENOR
PD IEC TR 61511-4:2020

PD IEC TR 61511-4:2020

Functional safety. Safety instrumented systems for the process industry sector. Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2

Fecha Anulación:
2020-10-05 /Withdrawn
Comité:
GEL/65/1
Equivalencias internacionales:

IEC/TR 61511-1 Ed.1.0

Resumen:
IEC TR 61511-4:2020(E), Functional safety - safety instrumented systems for the process industry sector, which is a Technical Report:
• specifies the rationale behind all clauses and the relationship between them,
• raises awareness for the most common misconceptions and misinterpretations of the clauses and the changes related to them,
• explains the differences between Ed. 1 and Ed. 2 of IEC 61511-1 and the reasons behind the changes,
• presents high level summaries of how to fulfil the requirements of the clauses, and
• explains differences in terminology between IEC 61508-4:2010 and IEC 61511-1 Ed. 2.
Keywords:
Functional properties, Verification, Verification testing, Instruments, Computer software, Components, Electronic equipment and components
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