				Search Options
Index \| Site Map \| FAQ \| Facility Info \| Reading Rm \| New \| Help \| Glossary \| Contact Us

An Assessment of Fire Vulnerability for Aged Electrical Relays (NUREG/CR-6220)

On this page:

Publication Information
Abstract

Download complete document

The following links on this page are to documents in Adobe Portable Document Format (PDF). See our Plugins, Viewers, and Other Tools page for more information. For successful viewing of PDF documents on our site please be sure to use the latest version of Adobe.

NUREG/CR-6220 (PDF - 2.05 MB)

Publication Information

Manuscript Completed: June 1994
Date Published: March 1995

Prepared by
R. A. Vigil,* S. P. Nowlen

Sandia National Laboratories
Albuquerque, NM 87185-0737

Prepared for
Division of Engineering Technology
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555
NRC Job Code A1833

*Science & Engineering Associates, Inc.
6100 Uptown Blvd. NE
Albuquerque, NM 87110

Availability Notice

Abstract

This report details testing to assess the impact of aging on the fire vulnerability of Agastat and General Electric relays. Both aged and unaged relays were tested. Aged relays were subjected to operational cycling under rated load and thermally aged for sixty days. All relays were exposed to one of three different fire temperature profiles in the Severe Combined Environments Test Chamber located at Sandia National Laboratories. The ability to operate properly in the given fire environment was monitored. Results for the aged and unaged relays were examined to determine the impact of aging on the relays' ability to sustain operation under the test conditions. Overall results indicated that the aged relays' performance was not significantly different from that of the unaged relays.