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RCM Study Size
  • 09 Aug 2024
  • 2 Minutes to read
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RCM Study Size

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Article summary

Before starting a RCM quality check, it is good to check the size of the study.
The size of a RCM study relates to the number of Plants, Units, Flocs and Equipment involved.
On an RCM study one needs to verify: 'How big is the box'?
Box.png

Below overview can be used to get this insight:

Size.png

Form this overview, it is nex of intrest what RCM analyses are done.
This can be seen by the #FM's in the Floc grid and Equipment grid:

F grid.png

This grid also provides info that RSL's are used.
Export of the grid enables analyses of the #FM's per Location type, for instance by creating a Pivot table in Excel:

F pivot.png

This pivot table shows a set of 139.790 Flocs in the tool, where 129,599 do not have a FM while 10,191 FLocs do have one or more FM's.

# FM's per object type

A table showing the #FM's per object type gives insight in the amount and spread of FM's involved in RCM and RSL analyses.
This can flag understimation or overestimation of the equipment complexity.
Looking at which FMs are actually studied versus which FMs not, can help to get insight in the differences in degradation.

This can be further split up in FM's origination form an RSL or basic RCM analyses:

RSl split up.png

Above left table shows that 1403 Flocs do have FM's orginating from RSL's and the right table shows 8788 Flocs have FM's from RCM analyses.
Additionally, insight is given how this works out for the various location types.
Next to looking at FLocs, same analyses should involve data from Equipment also, providing insight at which hierarchy level the analyses are done.

Insight in the number of FM's gives an idea on the depth of FM determination per object type. This data can help to make an estimate on how many FM's are expected to be involved in a future RCM study and how much time the study may take - per discipline.

#FM's per Floc/Eq:

To show an overall number of FM's per FLoc/Eq, one can use te Excel Pivot table with showing the 'Count of #FM's' versus the 'Sum of #FM's':

nFM-tags 123.jpg

This enable to show a column with the overall sum of FM's:

nFM-tags 2.png

Above picture shows that 10k Flocs have roughly 15k of FM's,
an average of 1.5 FM/Floc and
a maximum of 4.2 FM/Floc for Analysers.

Above data gives insight in the size, scope and granularity,
next its relevant to look at the anayses quality.


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