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ESD hazards associated with CO{sub 2} refrigeration [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
22 pages : digital, PDF file
Additional Creators:
Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Apparent malfunctions of two Trajectory Sensing Signal Generators (TSSGs) were observed during B61-3/4/10 trajectory arming tests at the Pantex Weapons Evaluation Test Laboratory (WETL). On two subsequent occasions, the TSSG used in the B83 bomb developed single-channel failures during tests at WETL. It was concluded that the failures were related to the electrostatic discharge (ESD) hazard associated with the use of a Thermotron{reg_sign} liquid carbon dioxide (CO₂) refrigeration system. It was demonstrated that during temperature conditioning, the case of the TSSG can acquire a substantial electrostatic charge as a result of triboelectric processes. A series of tests was performed to identify the charging mechanisms associated with liquid CO₂ refrigeration systems and a quantitative assessment of the ESD hazard was made. The conclusions and recommendations derived in these tests were summarized in a Significant Finding Investigations Closeout. The purpose of this report is to provide formal documentation for, and elaboration on, issues addressed in the Findings.
Report Numbers:
E 1.99:sand--94-1268
sand--94-1268
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
08/01/1994.
"sand--94-1268"
"DE94018493"
"GB0103012"
Jones, R.D.; Chen, K.C.; Holmes, S.W.
Type of Report and Period Covered Note:
Topical; 08/01/1994 - 08/01/1994
Funding Information:
AC04-94AL85000
View MARC record | catkey: 14656637