Nuclear Plant Piping Criteria and Construction Costs

摘要

The objectives of this study were to:(1) answer on a limited basis, why cost increases associated with the construction of nuclear power piping and supports have occurred, (2) provide a mechanism for utilities to track and assess the cost impact of Code and Regulatory additions and revisions related to piping criteria.nThe cost study was performed by reviewing nuclear piping installation costs for three units at a single site with a commercial operation date range of 16 years between Units 1 and 3. A number of conclusions are reached, the most important of which are:n• Craft labor hours for piping installation today can, and have been controlled to a degree that is competitive with plants constructed in the late 1960's.n• The overall piping and support cost increase factor per megawatt (corrected for inflation) from Unit 1 to Unit 3 is 1.76.