Qualification of active mechanical equipment for nuclear plants. Final report. [PWR; BWR]
This report describes a methodology which can be used for qualifying active mechanical equipment for safety-related service in nuclear power plants in a cost effective manner. The emphasis in this report is to develop guidance on technically sound methods that may be used to qualify mechanical equipment without resorting to piece-by-piece testing. This report identifies the types of mechanical equipment which may need to be qualified and discusses the considerations which are important in the determination of qualification loading conditions. In particular, the traditional practice of seismic qualification of all safety related equipment is reviewed to provide a well-founded technical basis for decoupling environmental loads from seismic (and dynamic) loads. Detailed examination of design, function and potential failure modes of valves, pumps, diesel engines, drive turbines, fans and snubbers provides the technical foundation for the appropriate qualification methods to be used for environmental, seismic and dynamic qualification. These appropriate qualification methods include: design, operating and earthquake experience; analysis and testing; evaluation of the effects of radiation on non-metallic parts, consideration of thermal and wear aging; surveillance and maintenance; and proper documentation.
- Research Organization:
- Mollerus Engineering Corp., Los Gatos, CA (USA)
- OSTI ID:
- 6122940
- Report Number(s):
- EPRI-NP-3877; ON: TI85920504; TRN: 85-007445
- Country of Publication:
- United States
- Language:
- English
Similar Records
Seismic qualification of equipment in operating nuclear power plants: Unresolved Safety Issue A-46
IEEE standard for design qualification of safety systems equipment used in nuclear power generating stations
Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
DIESEL ENGINES
ENGINEERED SAFETY SYSTEMS
PUMPS
SHOCK ABSORBERS
VALVES
QUALITY ASSURANCE
PWR TYPE REACTORS
DESIGN
MAINTENANCE
MECHANICAL ENGINEERING
NUCLEAR POWER PLANTS
REACTOR SAFETY
SAFETY ENGINEERING
SYSTEM FAILURE ANALYSIS
TESTING
THERMAL ANALYSIS
CONTROL EQUIPMENT
ENGINEERING
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NUCLEAR FACILITIES
POWER PLANTS
REACTORS
SAFETY
SYSTEMS ANALYSIS
THERMAL POWER PLANTS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210100 - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled