For shift personnel, fatigue is best treated as a risk exposure, not simply as hours worked. The most useful approach is to combine roster-based fatigue exposure + actual working hours/overtime + fatigue indicators + critical-task exposure.
I would recommend having three levels of fatigue KPIs.
A ...

This should trigger two things:
1. Notification to SMEs to assess this exceedance
2. Risk assessment involving concerned

Generally, no maintenance plans are applied be it manual isolation valves of any type including three way valves.
This is what I know about my plant maintenance.

Got that, thank you sys1 and tuan.

thanks novice123.


Try to understand this with an example.
A centrifugal pump is currently overhauled every 12 months.
After reviewing five years of maintenance history:

80% of bearings show minimal wear at overhaul.
Vibration consistently increases 8–10 weeks before bearing failure.
Online ...

I appreciate all your inputs.
But the limitations still exist at our site as I go through your responses.

Yes some the old facilities have them with no mercury over the years of operation.
However, things have changed recently where we might be expecting a feed with carryover of mercury.

Once identified during the spading list review that there are some spades still in place, that should have triggered any system to take care of any risk of taking the system in operation.
That could have been an MOC process but practically this is not possible to assess the risk in detail during a ...

Thanks luca

Is it true that ancient bubble cap trays are better than modern trays?
And if yes, in which ways are they better?