THIS CHAPTER REVIEWS plant operating and maintenance department requirements associated with in-service coating inspection and covers guidelines for monitoring coating performance in an operating nuclear power plant. Establishment of an in-service coatings surveillance plan perm…
THE SELECTION OF coatings for use in nuclear power plants is based upon requirements for normal operations as well as established accident requirements. Coating manufacturers evaluate materials in accordance with current standards to determine radiation resistance, decontaminati…
THIS CHAPTER ACQUAINTS the user of this manual with background information so that a better understanding of the complexities of regulations and their need in the maintenance of the nuclear power facility is achieved. The following subjects will be briefly discussed: 1. The reas…
Surface preparation is the most important part of any painting project. Historical analysis of failures of industrial painting systems indicates that up to 75% of all coating system failures are the result of inadequate surface preparation.
THE FIRST STEP in developing a maintenance coating program for an operating nuclear plant is that the painting schedules, materials, and application procedures used during construction be turned over to the Operating Department. This turnover, however, does not happen in all pla…
The purpose of preparing concrete test blocks is to use these samples for application of coatings which represent coating systems found in Service Level I nuclear facilities. These samples are then subjected to radiation and DBA conditions found in that particular facility (Fig.…
IN THE NUCLEAR utility industry, maintenance painting is performed for one or more of the following purposes: 1. Corrosion mitigation and prevention (life extension). 2. Facilitate decontamination. 3. Regulatory commitment. 4. System color coding. 5. Human factor considerations …
THIS CHAPTER OUTLINES the methods and tools in common use for appHcation of maintenance coatings at power generating facihties. In most cases, a Hquid material is applied in a uniform manner to the surface to be protected. The liquid will then cure to the desired state (rigid, e…
THIS CHAPTER is closely related to Chapter 4. However, this chapter goes into more detail as to the specific area being coated.
Today, with increasing use of exotic coating formulations and the pressing need to satisfy our various environmental concerns, it is becoming more needful to have an effective inspection program. This is not to reflect upon the adequacies or inadequacies of the coating applicato…
SAFETY IN AN operating nuclear plant is site specific. The information provided in this chapter should be considered when scoping and scheduling coating work and is meant only as a guide.