Identification of intersystem dependencies in the Pickering - A risk assessment
- Ontario Hydro, Toronto, Ontario (Canada)
Pickering generating station A is Ontario Hydro's oldest operating nuclear station. Its four 508-MW(electric) (net) CANDU units were placed in service in the early 1970s. Because of its vintage, Pickering A does not necessarily conform to all current safety design practices and requirements, such as in the extent of separation between process, mitigating, and support systems. This, in turn, raises the possibility of regulatory demand for safety upgrades. Furthermore, the operational surveillance programs in place in Pickering A are not as well supported by system reliability models as the newer stations. A risk assessment study was, therefore, carried out to provide a basis for plant backfit decisions and operational reliability models. A key objective was to appropriately characterize potential intersystem dependencies.
- OSTI ID:
- 5885699
- Report Number(s):
- CONF-930601--
- Journal Information:
- Transactions of the American Nuclear Society; (United States), Journal Name: Transactions of the American Nuclear Society; (United States) Vol. 68; ISSN 0003-018X; ISSN TANSAO
- Country of Publication:
- United States
- Language:
- English
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ACCIDENTS
CANDU TYPE REACTORS
COOLING SYSTEMS
ECCS
ENERGY SYSTEMS
ENGINEERED SAFETY SYSTEMS
HEAVY WATER MODERATED REACTORS
PICKERING SITE
PRESSURE TUBE REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR PROTECTION SYSTEMS
REACTOR SAFETY
REACTOR SITES
REACTORS
SAFETY
SAFETY ANALYSIS
TECHNOLOGY ASSESSMENT
THERMAL REACTORS