Standard Guide for Establishing Procedures to Monitor the Performance of Safety-Related Coating Service Level III Lining Systems in an Operating Nuclear Power Plant

Importancia y uso:

4.1 Establishment of an in-service linings monitoring program permits planning and prioritization of lining maintenance work as needed to maintain lining integrity and performance in nuclear Coating Service Level III systems. Refer to ASTM MNL-8, Manual on Maintenance Coatings for Nuclear Power Plants,6 and Guide D7230, which provides guidance for selecting lining materials for new construction or maintenance of safety-related lining systems.

4.2 A linings monitoring program enables early identification and detection of potential problems in lining systems. Some Coating Service Level III lining systems may be known in advance to be suspect, deficient, or degraded. Monitoring lining performance will assist in developing follow-up procedures to resolve any significant deficiency relative to lining work.

4.3 Degraded linings may generate debris under normal operation and testing or during upset conditions that could adversely affect the performance of safety-related systems. In most cases, the consequence of the debris generation is flow blockage, essential heat transfer reduction, or both; ultimately leading to degradation of equipment or system performance. A linings monitoring program may be required to fulfill licensing commitments for Coating Service Level III lining work.

Subcomité:

D33.04

Referida por:

D5498-25, D5144-08R21, D7230-06R21

Volúmen:

06.02

Número ICS:

27.120.20 (Nuclear power plants. Safety)

Palabras clave:

Coating Service Level III; inspection; lining; lining performance; linings monitoring program; maintenance; nuclear power plant; safety-related linings; surveillance;