Engineering and Design: Periodic Safety Inspection and Continuing Evaluation of USACE Bridges

1997 ◽  
Author(s):  
CORPS OF ENGINEERS WASHINGTON DC
Keyword(s):  
Periodic Safety

How to Apply the Human Factor to Periodic Safety Update Reports

Drug Safety ◽  
2010 ◽  
Vol 33 (10) ◽  
pp. 811-820 ◽  
Author(s):  
Brian David Edwards ◽  
Giovanni Furlan
Keyword(s):  
Human Factor ◽  
Periodic Safety

scholarly journals Why Should We Have a Periodic Safety and Performance Program for Medical Devices

2018 ◽  
Author(s):  
A Tavakoli Golpaygani
Keyword(s):  
Quality Control ◽  
High Risk ◽  
Medical Devices ◽  
Medical Equipment ◽  
Control Program ◽  
Electrical Safety ◽  
Leakage Currents ◽  
Quality Control Program ◽  
Periodic Safety ◽  
And Performance

Nowadays, more than 10,000 different types of medical devices can be found in hospitals.These devices used in medical centers and hospitals for monitoring and treatment of patients require periodic safety and performance checking in order to have confidence in their functioning and operation. Physicians need better accurate medical measurements in order to better diagnose diseases, monitor patients and deliver treatments, in this way failure to ensure appropriate measurements will certainly have diverse effects. Safety and performance testing of medical devices in the medical sector is a one of the key factor in improving public health. Acquiring results of some investigations indicate a need for new and severe regulations on periodic performance verifications and medical equipment quality control program especially in highrisks instruments.The metrological reliability of four high risk medical devices, Electrosurgical unit, Defibrillator, Syringe pump and Infant incubator in use some hospitals (privates and publics) in one of the province of Iran according to international and national standards was evaluated. Quantitative analysis of Some parameters that impact the safety and performance showed the amount of the obtained results in some equipment are in critical range and have higher values than standard limitations. General electrical safety evaluations for measuring the patient leakage currents and patient auxiliary currents carried out for all of groups,in some cases the amount of leakage currents were over the standard limitations.Acquiring results indicate a need for new and severe regulations on periodic performance verifications and medical equipment quality control program especially in high risk instruments. It is also necessary provide training courses for operating staff in the field of meterology in medicine and what’s the critical parameters and how they can get good accuracy results equipment.

scholarly journals Results of Analysis of Aging Related Events at Ukrainian NPPs

2020 ◽  
pp. 44-51
Author(s):  
O-i Shugailo ◽  
O. Ligotskyy ◽  
O. Pecherytsia ◽  
O. Kulman ◽  
R. Moskalyshyn ◽  
...  
Keyword(s):  
Nuclear Energy ◽  
Maximum Efficiency ◽  
Operational Experience ◽  
Aging Effects ◽  
Term Operation ◽  
Operation Period ◽  
Periodic Safety ◽  
Nuclear Installation ◽  
Main Factors

The design lifetime (30 years) of Ukrainian NPPs has already been expired or will be expired soon. One of the priority areas for the development of nuclear energy is long-term operation (LTO) based on the results of periodic safety review. At present, eleven Ukrainian NPP units are operated under LTO conditions, which in turn causes certain features of operation related to wear, fatigue and general aging of components and structures. An issue of aging management is considered one of the main factors to ensure the safety of a nuclear installation, both in the design lifetime and in the long-term operation. The primary purpose of aging management is to ensure the safety and maximum efficiency of operation through the implementation of technically and economically feasible measures aimed at timely detection and keeping of degradation of NPP components caused by aging within the limits. One way to determine the efficiency of implemented measures and aging management programs is to analyze operational experience and, in particular, analyze the number of NPP operational occurrences during the design and long-term operation period and that are directly related to the aging effects. This paper presents the results of the analysis of the events at Ukrainian NPPs caused by aging processes, compares the results of national and international experience.

Periodic Safety Update Reports

2014 ◽  
pp. 139-152
Author(s):  
Patrice Verpillat ◽  
Mondher Toumi
Keyword(s):  
Periodic Safety

Periodic Safety Update Reports

2007 ◽  
pp. 63-74
Author(s):  
Patrice Verpillat ◽  
Mondher Toumi
Keyword(s):  
Periodic Safety

Impact of Climate Change on EDF’s Nuclear Facilities: Climate Watch Approach

2020 ◽  
Author(s):  
L. Guinard ◽  
S. Parey ◽  
H. Cordier ◽  
L. Grammosenis
Keyword(s):  
Climate Change ◽  
Natural Hazards ◽  
Power Plants ◽  
Low Flow ◽  
Intergovernmental Panel ◽  
Safety Level ◽  
Safety Review ◽  
Climatic Hazards ◽  
Periodic Safety ◽  
Hazard Level

Abstract According to the Periodic Safety Review Process, the safety level is re-assessed every ten years, considering national and international operational feedback, evolution of knowledge and best available practices. Protection against natural hazards is part of this safety level re-assessment. In the current global change context, climate change impact has to be integrated in external natural hazards estimations, such as climatic hazards or external flooding. EDF has consequently implemented a climate watch approach. Undertaken approximately every 5 years, roughly in line with the publication of the assessment reports of the Intergovernmental Panel on Climate Change (IPCC) and with the update of safety licensing basis during Periodic Safety Reviews, this approach is intended to: - revisit the climatic hazards which present a plausible or certain upward trend, and could lead to an increased reference hazard level, - monitor the reach of target levels which should trigger a thorough analysis (concept of Major Climate Event) to ensure the robustness of the reference hazard level between two periodic reviews. This climate watch approach is developed in partnership with the scientific community and is based on the following activities: - compile and analyze datasets on hazards that are subject to changes with climate change (observed and modelled time series), - develop knowledge of associated climatic phenomena (models, projections). The application of this approach is presented in two steps: - the key implications of the last climate watch exercise carried out in 2015, which identified climatic hazards whose evolution is unfavorable and is plausible or certain for the sites of EDF NPPs: ○ High air and water temperatures (for the “heat wave” hazard) ○ Sea level (for the “external flooding” hazard for coastal or estuary sites) ○ Drought or « low flow » hazard for fluvial sites; - the results obtained for the 900 MW units, for which EDF started the 4th periodic safety review in 2019. Such an approach, which is closely linked to periodic reviews, ensures the robustness of nuclear power plants to the climatic hazards through the consideration of the updated hazard levels.

The Integrated Aging Management System Applied to Nuclear Power Plants in Korea

2013 ◽  
Author(s):  
Se-Youl Won ◽  
Kyeong-Soo Lee ◽  
Jae-Gon Lee
Keyword(s):  
Management System ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Operating Experience ◽  
Evaluation Report ◽  
Time Operation ◽  
Standard Guideline ◽  
Periodic Safety ◽  
Long Time

According to Post Fukushima action items in Korea, KHNP has established the integrated aging management system to reinforce aging management of system, structures, and components (SSCs) effectively for seven operating units, which are in service for more than twenty years, and for Kori Unit 1 and Wolsung Unit 1, which are subject to continued operation (CO) based on NUREG-1801 GALL report. KHNP’s integrated aging management programs (AMPs) focus on the establishment of aging management system for long-lived operation of nuclear power plants in Korea. The integrated aging management system consists of the integrated AMP standard guideline, operating guideline for each plant, individual AMPs of each plant, and AMP Data Base (DB) system including implementation results, basic DB information related to facilities operating in NPPs, and operating information such as operating experience and evaluation report. The integrated aging management system is importantly utilized for Periodic Safety Review (PSR) and the renewal of CO. Therefore, it will be largely contributed to keep NPPs the level of safety for long time operation through the effective aging management.

scholarly journals Student Sensor Lab at Home: Safe Repurposing of Your Gadgets

2020 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
Alexander N. Kalashnikov ◽  
Ali Elyounsi ◽  
Alan Holloway
Keyword(s):  
Learning Experience ◽  
Electronic Devices ◽  
Frequency Range ◽  
High Quality ◽  
Potential Harm ◽  
Electronic Circuitry ◽  
Conventional Teaching ◽  
Audible Frequency ◽  
Periodic Safety ◽  
At Home

The COVID-19 pandemic imposed various restrictions on the accessibility of conventional teaching laboratories. Enabling learning and experimenting at home became necessary to support the practical element of students’ learning. Unfortunately, it is not viable to provide or share a fully featured sensor lab to every student because of the prohibitive costs involved. Therefore, repurposing electronic devices that are common to students can bring about the sought-after practical learning experience without the hefty price tag. In distinction to the conventional lab instruments, however, consumer-grade devices are not designed for use with external sensors and/or electronic circuitry. They are not professionally maintained, do not undergo periodic safety tests, and are not calibrated. Nevertheless, nearly all modern computers, laptops, tablets or smartphones are equipped with high-quality audio inputs and outputs that can generate and record signals in the audible frequency range (20 Hz–20 kHz). Despite cutting off the direct currents completely, this range might be sufficient for working with a variety of sensors. In this presentation we look at the possibilities of making sure that such repurposing by design prevents any potential harm to the learner and to her or his personal equipment. These features seem essential for unsupervised lone experimenting and avoiding damage to expensive devices.

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