ADOPTION OF BETTER OM PRACTICES MAINTENANCE STRATEGY FOR IMPROVED AVAILABILITY

摘要

The drive to reduce operating costs invariably leads to pressure for a reduction in the downtime available for maintenance and an increase in the period between planned major outages. These policies if taken beyond the breakeven point can actually result in increased operating costs, particularly on high merit plant. Against this background the general economics of maintenance are discussed and the need for a planned maintenance strategy emphasised. Consideration is given to the various actions necessary to introduce scope for extension and optimisation of the period between maintenance outages with minimum risk to the integrity of the plant. The various maintenance and. repair techniques that can be used to reduce the actual overhaul duration are also discussed including the importance and role of major modular spares.