RG 5.44-76 相关标准章节.docxVIP

Publication Date: 6/1/76  Pages: 7  Date Entered: 1/5/93  Title: Perimeter Intrusion Alarm Systems, Revision 1  Revision 1  June 1976  U.S. NUCLEAR REGULATORY COMMISSION  REGULATORY GUIDE  OFFICE OF STANDARDS DEVELOPMENT  REGULATORY GUIDE 5.44  PERIMETER INTRUSION ALARM SYSTEMS A. INTRODUCTION  Paragraph 73.50(b)(4) of 10 CFR Part 73, Physical Protection of  Plants and Materials, requires at fuel reprocessing plants and certain  other plants at which high enriched uranium, uranium-233, or plutonium  is used or processed that the isolation zone surrounding the physical  barrier at the perimeter of the protected area be monitored to detect  the presence of individuals or vehicles within the zone so as to allow  response by armed members of the licensee security organization to be  initiated at the time of penetration of the protected area.(a) This  guide describes six types of perimeter intrusion alarm systems and sets  forth criteria for their performance and use as a means acceptable to  the NRC staff for meeting specified portions of the Commissions  regulations. B. DISCUSSION  Perimeter intrusion alarm systems can be used to detect intrusion  into or through the isolation zone at the perimeter of the protected  area. A system generally consists of one or more sensors, electronic  processing (*)equipment, a power supply, signal lines, and an alarm  monitor. Detection of an intruder is accomplished by the alarm system  responding to some change in its operating condition caused by the  intruder, e.g., interruption of a transmitted infrared or microwave beam  or stress exerted on a piezoelectric crystal. The choice of a perimeter  alarm system is influenced by considerations of terrain and climate. At  present, no single perimeter intrusion alarm system is capable of  operating effectively in all varieties of environment.   (a