Using Integrated RSLs

How: An integrated RSL can be a Global or Local RSL. This article explains how the Integrated RSL can be used.

Task HSSE CE Category

In the Integrated RSL the tasks can have the HSSE CE Category defined.

After copying in the Intergrated RSL on an FLoc/Eq, the HSSE CE catagories are visible in the Anayses screen (top) and in the Tasks grid (bottom):

Task grid:

Operating Context

A description of the safety functions of the HSSE Critical Equipment – required to prevent major accident hazards from occurring - can be stored in the Operating context area of the RSL header, as free text.
Such description is expected to originate from - for instance - a HAZOP study item.
• The RSL import procedure is adjusted so the Operating context data is included in the RSL field.
• When adding the Operating Context to existing RSL’s, a new Revision is not needed, as the tasks and Failure Modes stay the same.
• Option “Add new default text” and “Insert default text” is added, so users can work with predefined text templates, for instance referencing a particular HAZOP study.

A Rich text defaul template can be created with reference to a HAZOP study and the Study items and actions.

Functions & Functional Failures

Equipment Functions & Equipmernt Functional Failures fields are added to the FM's in the Integrated RSL.

The specification of the Equipment Functions & Functional Failures in the Integrated RSL enables assignment of assurance tasks for HSSE CE - originating from a HAZOP Study. These specified Equipment Functions & Functional Failures can be used in the 'Selective RSL' functionality to 'automatically create' System Functions and System Functional Failures - during the assignment of the RSL's.
This enables a 'Step out' of the RCM process, where in the RCM process it is expected that firstly the System Functions & Functional Failures are defined, before the 'Failure Mode and Effect Analyses' is done for the particular system.

Using the 'automatic creation' of System Functions and System Functional Failures is expecting that the failure analyses is rather done in the HAZOP study (and not in a RCM study) and the Equipment Functions and Functional Failures can be taken over from the Integrated RSL for the System.

Approval

In case Integrated RSL's are applied, the created RCM analyses might not be Approved.
In such cases in the Calculation screen a warning is shown:
'Warning: You have HSSE CE Category tasks and the analysis is not approved'.

In such cases often the MEI is not meeting the threshold, than you can:

• Complete the RCM analyses POC and PONC data to bring the MEI value above the threshold.
• Tick the (HSSE CE) task to be 'Mandatory' which drives analyses approval.
• Tick the analyses to be 'Manually Approved'

Task details

Details of the assurance Tasks can be stored in the available task detail fields to drive execution to quality level. This can involve:

• Performance requirements,
• Pass/Fail criteria,
• Work-instructions,
• Procedures,
• Frequency and Timing,
• Relevant work process
• Materials or spare parts
• Critical Positions

Updating Assurance Tasks

Assurance Tasks can be identified and updated using the RSL updating process.
When Assurance Tasks are identified 'by hand' - so not using the RSLs - you can update them also via 'task export-for-import':