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NORSOK - Z-008

Risk based maintenance and consequence classification

inactive
Organization: NORSOK
Publication Date: 1 June 2011
Status: inactive
Page Count: 46
scope:

This NORSOK standard is applicable for preparation and optimisation of maintenance activities for plant systems and equipment including 

  •  offshore topside systems, 
  •  sub-sea production systems, 
  •  oil and gas terminals.

The systems involving the following types of equipment: 

  •  mechanical equipment: 
  • tatic and rotating equipment; 
  •  piping. 
  •  instrumentation; 
  •  electrical equipment.

Excluded from the scope of this NORSOK standard are 

  •  load bearing structures, 
  •  floating structures, 
  •  risers and pipelines.

In principle, all types of failure modes and failure mechanisms are covered by this NORSOK standard.

This NORSOK standard covers 

  •  definition of relevant nomenclature, 
  •  brief description of main work flow related to maintenance and which elements this typically involves, 
  •  definition of risk model and failure consequence classes, 
  •  guidelines for consequence classification, including 
  •  functional breakdown of plants and plant systems in MFs and sub functions, 
  •  identification of MF and sub function redundancy, 
  •  assessment of the consequences of loss of MFs and sub functions, 
  •  assignment of equipment to sub functions and associated consequence classes. 
  •  description of how to establish an initial maintenance programme, and how to update an existing programme, 
  •  description on how to use the classification in combination with probability for decision making related to prioritising work orders and handling spare parts.

Document History

December 1, 2017
Risk based maintenance and consequence classification
This NORSOK standard is applicable for preparation and optimisation of maintenance activities for all plant systems and items. The consequence classification and the maintenance task selection...
Z-008
June 1, 2011
Risk based maintenance and consequence classification
This NORSOK standard is applicable for preparation and optimisation of maintenance activities for plant systems and equipment including   offshore topside systems,   sub-sea production systems, ...
November 1, 2001
Criticality analysis for maintenance purposes
This NORSOK standard is applicable for preparation and optimisation of maintenance programs for plant systems and equipment including: • Offshore topside systems. • Sub-sea production systems. •...

References

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