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原文传递 Analysis of power loss data for the 200 Area Tank Farms in support of K Basin SAR work

题名：	Analysis of power loss data for the 200 Area Tank Farms in support of K Basin SAR work
作者：	Shultz, M.V. Jr.;
关键词：	05 NUCLEAR FUELS; STORAGE FACILITIES; POWER LOSSES; HANFORD RESERVATION; RADIOACTIVE WASTE FACILITIES; FUEL STORAGE POOLS; SAFETY ANALYSIS; OUTAGES; STATISTICAL DATA
摘要：	An analysis of power loss data for the 200 Area Tank Farms was performed in support of K Basin safety analysis report work. The purpose of the analysis was to establish a relationship between the length of a power outage and its yearly frequency. This relationship can be used to determine whether the duration of a specific power loss is a risk concern. The information was developed from data contained in unusual occurrence reports (UORs) spanning a continuous period of 19.75 years. The average frequency of power loss calculated from the UOR information is 1.22 events per year. The mean of the power loss duration is 32.5 minutes an the median duration is 2 minutes. Nine events resulted in loss of power to both 200 East and 200 West areas simultaneously. Seven events (not necessarily the same events that resulted in loss of power to both 200 areas) resulted in outage durations exceeding 5 minutes. Approximately one-half of the events were caused by human error. The other half resulted from natural phenomena or equipment failures. None of the outages were reported to have any adverse effect on the tank farms.
总页数：	27p
报告类型：	科技报告