Three-part plant acceptance systems

In order to ensure safe commissioning of new plant and equipment, a three-part plant acceptance system should be utilised ... 

Part one consisted of a limited PRA to determine the potential for EFW system failure under various loss-of-main-feedwater transient conditions, with particular emphasis being placed on determining potential failures from human errors, common causes, single-point vulnerabilities, and test and maintenance outages. This evaluation applies to operating plants and plants under construction and not to advanced or future plants. Part two was composed of a deterministic review of the EFW system using the acceptance criteria of SRP Section 10.4.9 and the associated Branch Technical Position (BTP) ASB 10-1. Part three required a re-evaluation of the decay heat removal capability of the EFW system with respect to EFW system flowrate. Parts two and three apply to advanced or future plants. 

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