Planning and safety management

Activities for MS I should be planned in the context of the overall management of the plant. It is usual practice for the management of the operating organization to establish a planning team to co-ordinate all MS I activities. 

In planning activities for MS I that involve the removal from service of SSCs important to safety, it should be ensured that operational limits and conditions and any other applicable regulatory requirements are always met. If tasks for MS I are discovered to be incompatible with existing operational limits and conditions, then, after invoking the plant modification procedure, either a temporary waiver of or a permanent change to the operational limits and conditions should be effected (see also Ref [3]). 

As a general rule, MS I activities should be staggered in cases where there are redundant trains or several trains of similar design. This makes it possible to analyse performance data before proceeding with subsequent tests, and to make adjustments for the subsequent tests if any problems are found. 

Factors important to safety, such as the ageing of safety significant components, as well as maintenance history and operating experience should be taken into account in the long term planning. 

Procedures and work related documents should specify preconditions and provide clear instructions for the work to be done, and should be used to ensure that work is performed in accordance with the strategy, policies and programmes of the plant. The procedures and work related documents should be technically accurate, properly validated, verified and authorized, and they should be periodically reviewed. Human factors and the ALARA principle (to keep radiation doses as low as reasonably achievable) should be considered in the preparation of work instructions. 

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The basic requirements for an effective safety culture are management commitment and safety accountability appointment of key safety personnel coordination of emergency response planning and safety management system documentation. 

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