Core damage frequency definition

Core damage frequency means the frequency per annum of damage to the reactor core caused by accidents as calculated by a probabilistic safety anal- ysis.
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Examples of Core damage frequency in a sentence

  • PRA shall be updated continuously to reflect plant and procedure modifications and changes in reli- ability data (Living PRA).Guide YVL 2.8 includes the following probabil- istic safety goals:• Core damage frequency less than 1∙10-5/year• Large radioactive release (> 100 TBq Cs-137) frequency less than 5∙10-7/year.

  • PRA shall be updated continuously to reflect plant and procedure modifications and changes in reliability data.Guide YVL A.7 includes the following probabil- istic safety goals:• Core damage frequency less than 1∙10-5/year• Large radioactive release (> 100 TBq Cs-137) frequency less than 5∙10-7/year.

  • Core damage frequency (‘‘CDF’’)7 was the measure used to assess the safety significance of the concern.

  • Core damage frequency (CDF) estimates from Level 1 PRAs and conditional probability of (early) containment failure or bypass (CPCFB) estimates from Level 2 PRAs can be compared to corresponding safety goal screening criteria to determine the need for a cost-benefit analysis as part of the regulatory analyses.

  • Core damage frequency (CDF) - The calculated CDF should demonstrate that the sum of frequencies of all event sequences that can lead to significant core degradation shall be less than 10-5 per reactor year.2. Small release frequency (SRF) - The calculated SRF should demonstrate that the sum of frequencies of all event sequences that can lead to a release to the environment of more than 1015 becquerels of iodine-131 shall be less than 10-5 per reactor year.

  • PRA shall be updated contin- uously to reflect plant and procedure modifications and changes in reliability data (Living PRA).Guide YVL 2.8 includes the following probabil- istic safety goals:• Core damage frequency less than 1∙10–5/year• Large radioactive release (> 100 TBq Cs-137) frequency less than 5∙10–7/year.These safety goals apply as such to new plant units.

  • According to the above paper, the Core damage frequency (CDF) of the proposed reacor in one in 10 million reactor years.

  • The CDF and LERF metrics are defined in a functional sense as follows: • Core damage frequency (CDF) is defined as the sum of the frequencies of those accidents that result in uncovery and heatup of the reactor core to the point at which prolonged oxidation and severe fuel damage are anticipated and involving enough of the core, if released, to result in offsite public health effects.

  • Figure 7: Core damage frequency (CDF) per year and legal basis and supervisory decision making.

  • The following is a summary of key design objectives for the ABWR: • Plant availability factor of 87% or greater.• 24-month refueling cycle.• Design life of 60 years.• Core damage frequency of <10-6.• 52-month construction schedule.Figure 4.3 General Electric• 20% reduction in capital cost ($/kWh) vs.

Related to Core damage frequency

  • Major Damage means damage that in the estimation of the surveyor exceeds USD

  • Catastrophic Damage as used hereunder is major change or damage to In- cluded Timber on Sale Area, to Sale Area, to access to Sale Area, or a combination thereof:

  • Loss or Damage means any loss or damage to the Vehicle, including that caused by theft of the Vehicle or by adverse weather events, that requires repair or replacement including the loss of use of the Vehicle (demurrage), legal expenses, assessment fees, towing and recovery costs, storage, service charges and any appraisal fees of the Vehicle;

  • Downtime means the Total Minutes in the Month during which the Cloud Service (or Servers for Server Provisioning) does not respond to a request from SAP’s Point of Demarcation for the data center providing the Cloud Service (or Server for Server Provisioning), excluding Excluded Downtime.

  • Work loss means loss of income from work the injured victim would have performed if the injured victim had not been injured and expenses reasonably incurred by the injured victim in obtaining services in lieu of those the injured victim would have performed for income,

  • Direct Damage has the meaning given to it in clause 26.2;

  • Unplanned Service Interruption means any Service Interruption where events or circumstances prevent the timely communication of prior warning or notice to the Trader or any affected Customer;

  • Property damage means physical injury to, destruction of, or loss of use of tangible property.

  • Excused Downtime means the number of minutes in the Charging Period, rounded to the nearest minute that the link state of Customer’s Port is ‘down’ due to:

  • Outage has the meaning set forth in the CAISO Tariff.

  • Outages means the planned unavailability of transmission and/or generation facilities dispatched by PJM or the NYISO, as described in Section 35.9 of this Agreement.

  • Planned Service Interruption means a Service Interruption that has been scheduled to occur in accordance with schedule 5;

  • Emergency Downtime means downtime during critical patch deployment and critical operating system upgrades as described in the Supplement.

  • Severe property damage means substantial physical damage to property, damage to the treatment facilities which would cause them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.

  • Overhead Damage means any damage to the Vehicle or to any third-party property that is caused by:

  • Daily Delay Damages means with respect to a Guaranteed Project Milestone, an amount equal to (a) the Project Development Security Amount posted as of the first date that Daily Delay Damages are payable under this Agreement with respect to such Guaranteed Project Milestone, divided by (b) 120.

  • Generator Maintenance Outage means the scheduled removal from service, in whole or in part, of a generating unit in order to perform necessary repairs on specific components of the facility, if removal of the facility meets the guidelines specified in the PJM Manuals.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Planned Downtime means planned downtime for upgrades and maintenance to the Services scheduled in advance of such upgrades and maintenance.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Accidental Damage means physical damage, breakage or failure of Your Covered Equipment due to an unforeseen and unintentional event occurring either due to handling (e.g., dropping the Covered Equipment or through liquid contact) or due to an external event (e.g., extreme environmental or atmospheric conditions). The damage must affect the functionality of Your Covered Equipment, which includes cracks to the display screen that affect the visibility of the display.

  • Electrical Losses means all applicable losses, including the following: (a) any transmission or transformation losses between the CAISO revenue meter(s) and the Delivery Point; and

  • Advertising injury means injury arising out of one or more of the following offenses:

  • Unplanned Outage refers to the unavailable status of the units of the Power Plant other than Planned Outage. Based on the urgency of the needs of outage, the Unplanned Outage can be classified into five categories: (1) immediate outage; (2) the outage which could be delayed for a short while but the units must exit within six hours; (3) the outage which could be postponed over six hours but the units must exit within seventy-two hours; (4) the outage which could be deferred over seventy-two hours but the units must exit before the next Planned Outage; and (5) the prolonged outage which is beyond the period of the Planned Outage.

  • Extra Work means any work which is determined by City to be necessary for the proper completion of the Project, but which the Parties did not reasonably anticipate would be necessary at the execution of this Agreement. Consultant shall not perform, nor be compensated for, Extra Work without written authorization from City’s Representative.

  • Delay Damages means the damages assessed pursuant to Section 3.2(a) hereof.