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Draft emergency action level guidelines for nuclear power plants

Abstract

This document is provided for interim use during the initial phases of the NRC effort to promptly improve emergency preparedness at operating nuclear power plants. Changes to the document can be expected as experience is gained in its use and public comments are received. Further, the Commission has initiated a rulemaking procedure, now scheduled for completion in January 1930 in the area of Emergency Planning and Preparedness. Additional requirements are to be expected when rulemaking is completed and some modifications to this document may be necessary. Four classes of Emergency Action Levels are established which replace the classes in Regulatory Guide 1.101, each with associated examples of initiating conditions. The classes are: - Notification of Unusual Event; - Alert; - Site Emergency; - General Emergency. The rationale for the notification and alert classes is to provide early and prompt notification of minor events which could lead to more serious consequences given operator error or equipment failure or which might be indicative of more serious conditions which are not yet fully realized. A gradation is provided to assure fuller response preparations for more serious indicators. The site emergency class reflects conditions where some significant releases are likely or are occurring but  More>>
Authors:
"NONE"
Publication Date:
Sep 15, 1979
Product Type:
Technical Report
Report Number:
NUREG-0610; INIS-XA-N-197
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CONTAINMENT; EVACUATION; INFORMATION; NUCLEAR POWER PLANTS; PERSONNEL; RADIOACTIVE MATERIALS; REACTOR ACCIDENTS; RECOMMENDATIONS; REGULATORY GUIDES; TRANSPORT
OSTI ID:
20740517
Research Organizations:
U.S. Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation, Washington, DC (United States)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA04N2137050333
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
17 pages
Announcement Date:
Jun 16, 2006

Citation Formats

Draft emergency action level guidelines for nuclear power plants. IAEA: N. p., 1979. Web.
Draft emergency action level guidelines for nuclear power plants. IAEA.
1979. "Draft emergency action level guidelines for nuclear power plants." IAEA.
@misc{etde_20740517,
title = {Draft emergency action level guidelines for nuclear power plants}
abstractNote = {This document is provided for interim use during the initial phases of the NRC effort to promptly improve emergency preparedness at operating nuclear power plants. Changes to the document can be expected as experience is gained in its use and public comments are received. Further, the Commission has initiated a rulemaking procedure, now scheduled for completion in January 1930 in the area of Emergency Planning and Preparedness. Additional requirements are to be expected when rulemaking is completed and some modifications to this document may be necessary. Four classes of Emergency Action Levels are established which replace the classes in Regulatory Guide 1.101, each with associated examples of initiating conditions. The classes are: - Notification of Unusual Event; - Alert; - Site Emergency; - General Emergency. The rationale for the notification and alert classes is to provide early and prompt notification of minor events which could lead to more serious consequences given operator error or equipment failure or which might be indicative of more serious conditions which are not yet fully realized. A gradation is provided to assure fuller response preparations for more serious indicators. The site emergency class reflects conditions where some significant releases are likely or are occurring but where a core melt situation is not indicated based on current information. In this situation full mobilization of emergency personnel in tie :near site environs is indicated as well as dispatch of monitoring teams and associated communications. The general emergency class involves actual or imminent substantial core degradation or malting with the potential for loss of containment. The immediate action for this class is sheltering (staying inside) rather thai evacuation until an assessment can be made that (1) an evacuation is indicated and (2) an evacuation, if indicated, can be completed prior to significant release and transport of radioactive material to the affected areas. The example initiating conditions listed after the immediate actions for each class are to form the basis for establishment by each licensee of the specific plant instrumentation readings which, if exceeded, will initiate the emergency class. Some background information on release potential and expected frequencies for the various classes is provided in this material. Mote that there is a wide band of uncertainty associated with the frequency estimates. The release potential given reflects the amount that could be released over a long time period or under favorable meteorological conditions without, exceeding the exposure criteria of a more severe class. Release of these amounts in a short time period under unfavorable meteorological dispersion conditions might trigger the criteria of a more severe class.}
place = {IAEA}
year = {1979}
month = {Sep}
}