Epri np 6041 sl pdf merge

With significant challenges facing the electric industry and the world, we are always seeking top talent with handson experience to address issues as they relate to the generation, delivery, use, management and environmental responsibility of global electricity. Usnrc sma described in nuregcr4334 and electric power research institute epri sma described in epri np 6041 sl methods. Eprinp5697 valve stem packing improvements document. A methodology for assessment of nuclear power plant seismic margin revision i. This event is supported by epris program 201 on energy, environmental, and climate policy analysis.

Epri lightning protection design workstation tom mcdermott electrotek concepts, inc. Application of a graded approach to support the national. This paper discusses a newly issued guideline, epri np 7218, prepared specifically for acceptance sampling of commercial grade items for safety related use. Electric power research institute, epri, and togethershaping the future of electricity are registered service marks of the electric power research institute, inc. Pdf seismic fragility analyses of a candu 6 reactor. A proven electric motor regreasing program reliabilityweb. Usnrc sma described in nuregcr4334 and electric power research institute epri sma described in eprinp6041sl methods. Pdf high frequency seismic testing of potentially sensitivity. Environment pisces database 1014011 software program. The seismic margin methodology is given in epri np 6041 sl. R6020pnj nch 600v 20a power mosfet datasheet loutline vdss 600v to263 rdsonmax. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.

The conclusion of this detailed study was that with proper storage, shelf life for elastomer seals could be extended to 32 years. Correlations of observations with site response and ssi analyses are. Kk safetyrelated structures, systems and components performed very well in. Epri technical report 2012 severe accident management guidance technical basis report volume 1. In this methodology, high confidence of low probability of failure hclpf capacities for sscs are estimated in a deterministic manner. Pdf guidance on performing a seismic margin assessment. Pdf guidance on performing a seismic margin assessment in. For further information about epri, call the epri customer assistance center at 800.

The outcomes of the assessment proved that the seismic margin of the reactor concrete island that accommodate the. Design of severe accident management systems for beyond. Waste management for decommissioning of nuclear power plants an epri decommissioning project report rich mcgrath presenter epri consulting employee rick reid, phd senior technical leader symposium on recycling of metals arising from operation and decommissioning of nuclear facilities studsvik, sweden 810 april, 2014. Margin, epri np6041slr1, revision 1, palo alto, ca. Nrc letter, electric power research institute report 3002000704, seismic. Epri 3420 hillview avenue, palo alto, california 94304. Epri np 6041 sl, rev 1, august 1991, a methodology for assessment of nuclear power. Preliminary perspectives gained from individual plant. Seismic fragility of structures, systems and components nrc. Author links open overlay panel wei jiang a wei liu b weichau xie a mahesh d. Seismic evaluation guidance nuclear energy institute. However, the methodology presented examines the possibility of validated reduction of work, including.

Seismic margins assessment of the plutonium processing. Nuclear and facility safety programs workshop fire safety. A methodology for assessment of nuclear power plant seismic margin revision 1, final. Overhead transmission context transmission companies are focused on improving safety and reliability, while looking for ways to reduce operations and maintenance costs. Epri, a methodology for assessment of nuclear plant seismic margin, epri np 6041 sl revision 1, electric power research institute, palo alto, ca, usa, 1991. Epri 1025287 was that there was a limited need to evaluate components such as relays, switches, and other contact devices to determine their potential vulnerability to highfrequency ground. Epri report tr102260, supplemental guidance for the application of epri report np5652 on the utilization of commercial grade items safety and hazard analysis software and design software software that is used to classify. Accurate and precise determination of the probability of blade strike and injury, and of the behavior of fish as they encounter hydrokinetic turbines, was the primary goal of the studies. Most spra and sma ipeees assessed to date have stated that epri np 6041 epri np 6041 sl.

Epri is at the center of a quickly evolving energy landscape. This was followed up in may, 1994 by epri np 6608, shelf life of elastomeric components. Dear epri customer, our records indicate that you received epri report np 6041 slr1, a. In contrast to the initial sma methodology a modified approach does not presume rejection of computationalexperimental evaluation of seismic safety under real conditions. The general procedure of both methods consists of mainly three key elements. Seismic margin assessment methodology for npp buildings. Waste management for decommissioning of nuclear power plants. Pdf the goal of this ongoing, multiphase research project is to. Fullscale tornadomissile impact tests 1977 edition open. Nrc letter, electric power research institute report 3002000704, seismic evaluation.

Joint ictpiaea advanced workshop on earthquake engineering. Brian seal epri intelligrid smart grid information sharing webcast january 22rd, 2014 enterprise integration of distributed energy resources. Enterprise integration of distributed energy resources. A methodology for assessment of nuclear power plant. Direct spectratospectra method generate floor response spectra, part 2. Nuclear and facility safety programs workshop fire safety track may 5th, 2015. The conditions for using the sma method based on foreign databases on seismic classification are examined. Iaea, site survey and site selection for nuclear installations, iaea safety standards series no.

Jan 20, 2011 fullscale tornadomissile impact tests by sandia laboratories. The seismic level 2 sl2 as defined in iaea safety guide nsg3. Np 7376 guidelines for the use of microcomputer applications in safetyrelated activities ncig20, july 1992 np 7197 computerassisted drawing information capture, october 1991 np 6895 guidelines for the safety classification of systems, components, and parts used in nuclear power plant applications ncig17, february 1991. The horizontal incabinet response spectra are estimated using amplification factors from epri np 6041, and a new procedure is developed for estimating a vertical incabinet amplification factor. A methodology for assessment of nuclear power plant seismic margin revision 1, final report. Cdfm m ethodology presented in epri np6041slr1 1991. Seismic margin analysis of inservice nuclear power plant.

Seismic fragility of structures, systems and components. The electric power research institute epri np5652, guideline for the utilization of commercial grade items in nuclear safety related applications ncig07, defines critical characteristics as identifiable and measurable attributesvariables of a cgi, which once selected to be verified, provide reasonable assurance that the item received. Safety reassessments and actions taken in hanaro since. Sg manual depressurization of rnp procedure edmg004, steam. Epri nrcres fire prares fire pra methodology introduction and overview. Improving seismic margin assessment procedure using multiple. Epri report tr102260, supplemental guidance for the application of epri report np 5652 on the utilization of commercial grade. Pdf structure response and clipping factor variabilities. Assessment of nuclear power plant seismic margin, epri np6041sl, revision 1, palo alto, ca. Sc83 id 20a lpts pd 304w linner circuit lfeatures 1 low onresistance. Seismic individual plant examination of external events of.

Visit epri s web site to download pdf versions of technical reports. Epri np6041 sl may be used for the development of the hclpf capacity. Combine the inelastic seismic demand with the best estimate of concurrent. A screening level consistent with a hclpf capacity that is 2. A methodology for assessment of nuclear power plant seismic margin, epri np 6041 sl, revision 1, project 272223, final report. Improving seismic margin assessment procedure using. Increasing transmission capacity without making large capital investments and reducing capital expenditures for newrefurbished equipment are. For the seismic assessment of the reactor building, the epri np 6041 sl a methodology for assessment of nuclear power plant seismic margin rev. Eprinp6695 guidelines for nuclear plant response to an earthquake.

Electric power research institute epri 1991 a methodology for assessment of nuclear power plant seismic margin revision 1. Evaluation of seismic shear capacity of prestressed. Aerospace b recommended issued 199811 superseding arp5316a. This paper compares the similarities and differences between the challenges on seismic qualification of structures, systems and components in npps situated on two diametrically opposite geographic. Generic capacity information epri np 6041 when shown applicable seismic design criteria assign low median fragility values in some cases surrogates mechanical componentspipingothers identify these sscs for verification of no vulnerabilities in the field during the plant walkdown screening of sscs. Sma and spra status report of taipower taiwan power company sep. Candidate highlevel actions and their effects, volume 2. Response spectra for equipmentstructure resonance floor response spectra for.

Seismic individual plant examination of external events of us nuclear power plants. The electric power research institute epri conducted shake table testing of a. Nureg1407 7, nuregcr4334 12 and eprinp6041, has typically. A methodology for assessment of nuclear power plant seismic margin revision 1. Similarly, a clipping factor recommended by epri np 6041 sl 2 is typically used to obtain conservative deterministic broadband demand spectra for seismic margin assessment. Epris current work covers a wide range of applications and makes use of the knowledge of research and industry partners to investigate promising technologies while lowering development costs.

To address motor regreasing issues, a motor relubrication practice was developed by the electric power research institute epri in 1992 np7502. Visit epris web site to download pdf versions of technical reports. Evaluation of seismic shear capacity of prestressed concrete containment vessels with fiber reinforcement. The program was designed to minimize over greasing motor bearings inbetween required bearing replacements. Pdf equipment capacities from earthquake experience data for. Seismic robustness analysis of nuclear power plants. Epri distributed pv monitoring and feeder analysis. Postearthquake assessment of structures using freefield motions. The program was designed to minimize over greasing motor bearings in. Electric power system resiliency national association of state. Guidelines for performancebased supplier audits ncig16. This document comes with our free notification service, good for the life of the document. The national research universal nru reactor at canadian nuclear laboratories cnl operated safely for over 60 years and supported a wide range of applications including, testing of fuels and materials under typical power reactor conditions in two experimental loops u1 and u2.

Ssg35, international atomic energy agency, vienna, austria, 2015. In the commercial nuclear industry, procurements of replacement parts for operating plants typically involve small quantities purchased in isolated lots. Pdf electric power research institute epri has recently researched. Seismic margin, epri report np6041sl, revision 1, palo alto, california, 1991. Joint res epri fire pra training workshop san diego, ca, august 15, 2011 and. Seismic margin concepts 5 system modeling abbreviated system models. Eprinp6695 guidelines for nuclear plant response to an. Conservative deterministic failure margin cdfm values of the critical structural elements or groups of elements were determined in orthogonal directions for different levels of the structuresflexural and shear capacities of the various elements were determined according. Station challenges on seismic qualification of structures. The following is a small selection of items recently published by epri. A sampling plan for commercial product testing and. To view complete lists of your companyfunded research reports, updates, software, training announcements, and other program deliverables, log in at. Iuclear power plant seismic margin revision 1, 14 and has since been accepted by the usnrc 4.

Pdf determining seismic margin of nuclear power plants. The tests were performed using threepoints bending specimens 3pb specimens and compact specimens ct specimens, an extensometer fixture surrounding the ct specimens was used for displacement. Je epri report np 6041 sl, a methodology for assessment of. Electric power research institute epri 1994 methodology for developing seismic fragilities. The seismic margin earthquake sme for sma was set to pga 0. The simplified 1d and numerical 3d fe models of the layered subsoil are investigated. Based upon the data from the numerous studies concerning age control and shelf life. Environmental effects of hydrokinetic turbines on fish. Epris seismic margin methodology enables utility engineers to quantify a nuclear power plants. Oct 25, 2019 epri designed tomcat to be an all purpose machine, but robotics trends now call for smaller equipment to perform specific functions. C of its statute, the iaea is authorized to foster the exchange of scienti. Iuclear power plant seismic margin revision 1, 14 and. A second epri white paper covers flexibility in more depth. A scaling method for generating floor response spectra.

Epri np5652 asme nqa12008 with 2009 addenda revision 1 of epri 1025243 10 courtesy scana. Power research institute epri sma described in eprinp. In addition, this site provides opendss distribution feeder models and sample data sets at no cost. This document is available in either paper or pdf format. Iaea nuclear energy series publications structure of the iaea nuclear energy series under the terms of articles iii. Dynamic analysis of soilstructure interaction effects on. Epri has created this public website to serve as a resource for researchers in this important area of power system studies. The methodology of the calculation of the frequency dependent complex functions of the soil stiffness and damping is presented. These design practices combine to result in margins such that the sscs will. Neacsnir2001vol1 2 organisation for economic cooperation and development pursuant to article 1 of the convention signed in paris on. Others standardsrelated documents continued tsl120070088. Errata sheet for epri technical report, a methodology for assessment of nuclear power plant seismic margin revision 1, np 6041 slr1.

A clipping factor recommended by epri tr103959 1 is typically used to clip these peaks to obtain median broadband demand spectra for comparison to broadband trs. Pdf case study investigating probabilistic and deterministic. Dear epri customer, our records indicate that you received epri report np 6041 slr1, a methodology for. Here, you can learn about epri s efforts to collect data from a variety of distributed pv systems. Seismic risk assessment is also important for an insurance portfolio of properties and for lifelines such as transportation, water distribution, and electric transmission systems.

A methodology for assessment of nuclear power plant seismic. Pdf on apr 1, 2012, l regner and others published guidance on performing a. Author links open overlay panel youngsun choun junhee park. Epri np 6695 guidelines for nuclear plant response to an earthquake. Epri np5223, rev 1, january 1991, generic seismic ruggedness of power plant equipment nuregcr4659, vol 4, june 1991, seismic fragility of nuclear power plant components phase ii a fragility handbook on eighteen components epri np 6041 sl, rev 1, august 1991, a methodology for assessment of nuclear power. As with to method 1, combine the structure response variability.

This paper describes the soilstructure interaction ssi effects to the nuclear power plant npp structure with reactor vver1200491 pwr. Joint ictpiaea advanced workshop on earthquake engineering for nuclear facilities james j. Lanham pe, csp dale moon, pe fire protection chief engineer facility engineering depart. Other epri guidance documents, such as np6041slr1 1991a, tr103959 1994, 1002988. Paks nuclear power plant npp identified the postfukushima actions for mitigation and management of severe accidents caused by external events that include updating of some hazard assessments, evaluation of margins of existing severe accident management sam facilities, and construction of some new systems and facilities. Nuclear power plant seismic margin, revision 1, epri np6041sl august 1991. Epri np 5223, rev 1, january 1991, generic seismic ruggedness of power plant.