1 Scope
This part of IEC 61511, which is a Technical Report,
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• specifies the rationale behind all clauses and the relationship between them,
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• raises awareness for the most common misconceptions and misinterpretations of the clauses and the changes related to them,
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• explains the differences between Ed. 1 and Ed. 2 of IEC 61511‑1 and the reasons behind the changes,
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• presents high level summaries of how to fulfil the requirements of the clauses, and
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• explains differences in terminology between IEC 61508‑4:2010 and IEC 61511‑1 Ed. 2.