Guidance per DM - Summary

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There are some specific cases where the S-RBI assessment approach, in IMS PEI, changes, depending on the Equipment/Component type or the Degradation Mechanism. This section gives guidance for the specific Degradation Mechanisms. In another section you can find G uidance per Special Emphasis Component.

The DMs, for which specific modelling is implemented in IMS, is highlighted in the table below.

Specific modelling for different Degradation Mechanisms (DMs) – summary:

RBI Methodology	Equipment Type	Component Type	Degradation Mechanism (DM)	DM characteristics	IF Table	Max Inspection Interval (MII)	Inspection Strategy (IS)
Main	*	*	*	Age-Related	Half Life	*RLIF**	-
Main	*	*	Creep	Age-Related	Half Life	RL user entered, RL*IF	-
Main	*	*	*	Non-Age-Related	-	-	NAR table
Main	*	*	HTHA	Non-Age-Related	-	HTHA table	-
Main	*	*	Slow Acting SCC	Non-Age-Related	-	Slow Acting SCC table	SCC NAR table
Main	*	*	Moderate Acting SCC	Non-Age-Related	-	Moderate Acting SCC table	SCC NAR table
Main	*	*	Fast Acting SCC	Non-Age-Related	-	Fast Acting SCC table	SCC Fast NAR table
Main	*	*	Non-Corrosive	Non-Age-Related	-	RL*0.8	Review only
Main	*	*	CUI-CS	Strategy Based	IF=1	RL*1	CUI CS table
Main	*	*	CUI-SS	Strategy Based	-	Based on slow Acting SCC table	CUI SS table

Notes:

* Always applicable unless overwritten by another specific case.

- Not Applicable.

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