Experience Gained from Fires in Nuclear Power Plants

Experience Gained from Fires in Nuclear Power Plants PDF Author: Agence internationale de l'énergie atomique
Publisher:
ISBN:
Category :
Languages : en
Pages : 156

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Experience Gained from Fires in Nuclear Power Plants

Experience Gained from Fires in Nuclear Power Plants PDF Author: Agence internationale de l'énergie atomique
Publisher:
ISBN:
Category :
Languages : en
Pages : 156

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Book Description


Experience Gained from Fires in Nuclear Power Plants

Experience Gained from Fires in Nuclear Power Plants PDF Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 172

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Book Description
Offers a detailed analysis of the most recent events collected in IAEA databases and other bibliographical sources. The publication provides the technical background for the recently revised IAEA Safety Guide on fire protection and a collection of lessons learned useful for practical fire safety enhancement in operating plants.

Protection Against Internal and External Hazards in the Operation of Nuclear Power Plants

Protection Against Internal and External Hazards in the Operation of Nuclear Power Plants PDF Author: IAEA
Publisher: International Atomic Energy Agency
ISBN: 9201016220
Category : Business & Economics
Languages : en
Pages : 99

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Book Description
This Safety Guide provides specific recommendations on protection against internal and external hazards in the operation of nuclear power plants. It provides new or updated recommendations derived from enhanced understanding of operational aspects of hazards and combinations of hazards. Operating experience gained from incidents and accidents in nuclear power plants around the world has demonstrated that fire can be an important risk contributor in many Member States. However, there are other internal and external hazards that have also to be considered in the design and operation of nuclear power plants. This Safety Guide supersedes and expands the scope of lAEA Safety Standards Series No. NS- G-2. 1, Fire Safety in the Operation of Nuclear Power Plants, to include recommendations on these other hazards.

Use of operational experience in fire safety assessment of nuclear power plants

Use of operational experience in fire safety assessment of nuclear power plants PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 101

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Fire Protection of Safe Shutdown Capability at Commercial Nuclear Power Plants

Fire Protection of Safe Shutdown Capability at Commercial Nuclear Power Plants PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5

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Book Description
The comprehensive industrial safety standards and codes that exist today have evolved from lessons learned through past experience, research results, and improvements in technological capabilities. The current requirements for fire safety features of commercial nuclear power stations operated in the US are a notable example of this practice. Although fire protection has always been an important design requirement, from the aftermath of a serious fire that occurred in 1975 at the Browns Ferry plant, it was learned that the life safety and property protection concerns of the major fire insurance underwriters may not sufficiently encompass nuclear safety issues, particularly with regard to the potential for fire damage to result in the common mode failure of redundant trains of systems, and components important to the safe shutdown of the reactor. Following its investigations into the Browns Ferry fire, the Nuclear Regulatory Commission (NRC) promulgated guidance documents, which ultimately developed into mandatory regulations, necessary to assure the implementation of a fire protection program that would address nuclear safety concerns. The new criteria that evolved, contain prescriptive design features, as well as personnel and administrative requirements the Commission determined to be necessary to provide a defense-in-depth level of protection against the hazards of fire and its associated effects on safety related equipment. These criteria are primarily contained in Appendix R of Title 10 to the Code of Federal Regulations (10 CFR 50). Since 1983, various members of the Department of Nuclear Energy (DNE) at Brookhaven National Laboratory (BNL) have provided technical assistance to the Nuclear Regulatory Commission (NRC) in support of its evaluations of fire protection features implemented at commercial nuclear power stations operated in the US. This paper presents a discussion of the insights gained by the author during his active participation in this area.

Protection Against Internal Fires and Explosions in the Design of Nuclear Power Plants

Protection Against Internal Fires and Explosions in the Design of Nuclear Power Plants PDF Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 82

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Book Description
Safety Guide NS-G-1.7 is a revision of an earlier Safety Guide, Safety Series No. 50-SG-D2. This and other new Safety Guides recommend how to meet the design requirements established in Safety Standards Series No. NS-R-1. Safety of Nuclear Power Plants: Design. Its technical conent is based on the most recent operational experience and has been extended to cover the design of plants in relation to internal explosions. The appendices provide guidance for the design and upgrading of fire detection and suppression systems.

Lessons Learned from the Fukushima Nuclear Accident for Improving Safety of U.S. Nuclear Plants

Lessons Learned from the Fukushima Nuclear Accident for Improving Safety of U.S. Nuclear Plants PDF Author: National Research Council (U.S.). Committee on Lessons Learned from the Fukushima Nuclear Accident for Improving Safety and Security of U.S. Nuclear Plants
Publisher: National Academy Press
ISBN: 9780309272537
Category : History
Languages : en
Pages : 394

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Book Description
The March 11, 2011, Great East Japan Earthquake and tsunami sparked a humanitarian disaster in northeastern Japan. They were responsible for more than 15,900 deaths and 2,600 missing persons as well as physical infrastructure damages exceeding $200 billion. The earthquake and tsunami also initiated a severe nuclear accident at the Fukushima Daiichi Nuclear Power Station. Three of the six reactors at the plant sustained severe core damage and released hydrogen and radioactive materials. Explosion of the released hydrogen damaged three reactor buildings and impeded onsite emergency response efforts. The accident prompted widespread evacuations of local populations, large economic losses, and the eventual shutdown of all nuclear power plants in Japan. "Lessons Learned from the Fukushima Nuclear Accident for Improving Safety and Security of U.S. Nuclear Plants" is a study of the Fukushima Daiichi accident. This report examines the causes of the crisis, the performance of safety systems at the plant, and the responses of its operators following the earthquake and tsunami. The report then considers the lessons that can be learned and their implications for U.S. safety and storage of spent nuclear fuel and high-level waste, commercial nuclear reactor safety and security regulations, and design improvements. "Lessons Learned" makes recommendations to improve plant systems, resources, and operator training to enable effective ad hoc responses to severe accidents. This report's recommendations to incorporate modern risk concepts into safety regulations and improve the nuclear safety culture will help the industry prepare for events that could challenge the design of plant structures and lead to a loss of critical safety functions. In providing a broad-scope, high-level examination of the accident, "Lessons Learned" is meant to complement earlier evaluations by industry and regulators. This in-depth review will be an essential resource for the nuclear power industry, policy makers, and anyone interested in the state of U.S. preparedness and response in the face of crisis situations.

Preparation of Fire Hazard Analyses for Nuclear Power Plants

Preparation of Fire Hazard Analyses for Nuclear Power Plants PDF Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 78

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Book Description
This Safety Report discusses the ways of preparing a fire hazard analysis for a nuclear power plant. A comprehensive fire hazard analysis determines the adequacy of the fire protection measures (e.g. administrative controls, operator actions and passive fire protection components) and the necessary fixed fire protection systems. The publication will be useful to designers of new plants as well as operators of existing plants when preparing or updating a fire hazard analysis.

Basic Safety Principles for Nuclear Power Plants

Basic Safety Principles for Nuclear Power Plants PDF Author: International Nuclear Safety Advisory Group
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 118

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Book Description
The present report is a revision of Safety Series No. 75-INSAG-3 (1988), updating the statements made on the objectives and principles of safe design and operation for electricity generating nuclear power plants. It includes the improvements made in the safety of operating nuclear power plants and identifies the principles underlying the best current safety policies to be applied in future plants. It presents INSAG's understanding of the principles underlying the best current safety policies and practices of the nuclear power industry.

Nuclear Power Plant Operating Experience

Nuclear Power Plant Operating Experience PDF Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201024176
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
The International Reporting System for Operating Experience (IRS) is an essential element of the international operating experience feedback system for nuclear power plants. Its fundamental objective is to contribute to improving safety of commercial nuclear power plants which are operated worldwide. IRS reports contain information on events of safety significance with important lessons learned which assist in reducing recurrence of events at other plants. This sixth publication, covering the period 2012 - 2014, follows the structure of the previous editions. It highlights important lessons based on a review of the approximately 240 event reports received from the participating countries over this period.