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5. Case Study The Development of the Reliability Basis

5.3 The Reliability Basis Optimisation Process

5.3.1 The RBO Analysis Team

In carrying out a RBO analysis the correct team composition is important to derive maximum value. The team should ideally consist of resources from all three disciplines i.e. Engineering, Maintenance and Operating as well as resources that possess Mechanical, Electrical and Control and Instrumentation knowledge from both an Engineering as well as Maintenance point [7].

The System Engineers (Mechanical, Electrical and Control and Instrumentation) are responsible for delivering the technical input into the components being analysed. As the systems are predominantly mechanical in nature the Mechanical System Engineer is therefore responsible for co-ordinating the inputs from the electrical and control and instrumentation portion of the analysis as well as compiling the final System Strategy Document.

The maintenance personnel are responsible for delivering the maintenance aspects of the components as well as the practicality of carrying out tasks derived during the analysis session. Maintenance also provides inputs to current maintenance activities being carried out and the effectiveness of the said maintenance. Personnel from the Planning department also attend the session so that they have a good understanding of the logic that went into deriving the maintenance strategy tasks that they will be uploading into the CMMS.

Operating provides the operating context of the system being analysed. Further additional work carried out by Operating in terms of Operator Rounds are also analysed during the session. Operating discusses the impact of tasks that may be carried out while the system is in operation.

Should a dispute arise during the analysis session that may affect the task type or task frequency then the final decision is taken by the Mechanical System Engineer. Finally the Reliability Engineer co-ordinates the entire RBO effort.

A successful roll out of the RBO process is dependant key Power Station Departments as well as specific individuals [7]:

The Power Station Manager is deemed the Sponsor and is responsible for: • Providing an achievable RBO project mandate.

A Case Study on the Development of and Asset Management Process within the Eskom Fossil Fired Power Stations with Emphasis on Reliability Basis Optimisation

37 • Providing a link to other Power Station Managers with respect to the RBO

Process.

• Aligning the RBO Objectives to the Generation Plant Asset Directive. The RBO Steering Committee

To ensure that the RBO process is effective and rolled out throughout the Power Station, it is necessary to develop a Power Station Steering Committee. The Steering Committee with a charter as well as the roles and responsibilities of each member must be clearly defined. The Steering Committee id responsible for:

• Developing the RBO process implementation strategy. • Providing resources and support to the RBO Analysis Team. • Prioritising of Plant Systems for RBO Analysis.

• Approving the Plant System Strategies.

• Monitoring the RBO Analysis and Implementation Project Schedules. • Conflict resolution.

The Engineering Manager is deemed the RBO Project Manager and is responsible for: • Chairing the Steering Committee

• Developing and Approving of the RBO Process. • Implementing and Maintaining of the RBO process. • Communicating and Marketing of the RBO Project. • Appointing a RBO Manager to execute the Project on Site.

• Final Approval of the Plant System Strategies and changes thereto. The Engineering Department is responsible for:

• Providing the relevant engineering information required to carry out the Plant System Analysis.

• Documenting the rationale for RBO Process decisions.

• Formally compiling and maintaining the Plant System Strategies and changes thereto.

A Case Study on the Development of and Asset Management Process within the Eskom Fossil Fired Power Stations with Emphasis on Reliability Basis Optimisation

38 • Ensuring that the Plant Documentation System is maintained, including all

relevant archives.

• Providing the logistical resources for the RBO Process.

• Providing skilled people for the RBO Process Analysis of Phase 1.

• Ensuring that the Strategies are reviewed by the System Engineer on an annual basis and that the review is documented and auditable. This will include a review to ensure that the PM’s are a reflection of the Maintenance Strategy contained within the Plant System Strategy.

• Ensuring that the compilation of Phase 2 (PM’s/SMP’s/SOP’s/Ops Inspections) is carried out.

• Ensuring that the System Engineers formally approve all deviations to the implemented Plant System Strategy requirements.

• Providing an electronic database for storing Generation System Strategies and Generic Component Strategies for access and utilization during Strategy Reviews.

The Works Management Department is responsible for: • Providing skilled people for the RBO process.

• Compiling and maintaining the Preventive Maintenance Schedules and SMP’s in compliance with the Reliability Basis reflected in the Plant System Strategies.

• The logistical planning of tasks to be carried out and identify continual improvement initiatives for the reliability basis.

• Ensuring that all PM’s and SMP’s reside in the CMMS (SAP). This will include outage maintenance tasks, as well as running plant maintenance tasks. • Searching in the AMD Library for any applicable SMP’s, when developing

these documents. Conversely, any SMP’s in existence or developed should be forwarded to the AMD.

The Works Execution Department is responsible for: • Providing skilled people for the RBO process.

A Case Study on the Development of and Asset Management Process within the Eskom Fossil Fired Power Stations with Emphasis on Reliability Basis Optimisation

39 • Works Execution is responsible for carrying out the tasks in practice in accordance with the Quality Criteria and Tolerance Periods specified in compliance with the Reliability Basis reflected in the Plant System Strategies. The Operating Department is responsible for:

• Providing skilled people for the RBO process.

• Compiling and maintaining the PM Schedules, SOP’s and Ops Inspections in compliance with the Reliability Basis reflected in the Plant System Strategies. The Reliability Engineer is responsible for:

• Providing RBO Process training to all team members. • Planning the RBO Sessions in advance.

• Providing a Time Schedule of planned activities.

• Facilitating Plant system Planning Sessions, where skills, documentation and information availability is planned for.

• Facilitating the RBO Analysis.

• Documenting the decisions of the RBO Analysis. • Assuring a complete analysis of the Plant System.

• Following the RBO Process as defined in this procedure and the principles as spelt out in the ESKOM Generation RBO Manual.

• Providing a monthly progress status to the RBO Steering Committee. • Timely completing the Plant System Strategies by the System Engineer.

• Timely completing the development of tasks (PM’s) in accordance with the approved Plant System Strategy.

A Case Study on the Development of and Asset Management Process within the Eskom Fossil Fired Power Stations with Emphasis on Reliability Basis Optimisation

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