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Investigation of Fire Stop Test Parameters Final Report (NUREG/CR-2321)
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Publication Information
September 1981
Sandia Project Officer: L. J. Klamerus
Prepared for
Sandia National Laboratories
Albuquerque, New Mexico 87185
operated by Sandia Corporation
for the US Department of Energy
Work performed under Sandia Contract No. 07-9116
Funded by
Division of Engineering Technology
Office of Nuclear Reactor Research
Washington, DC 20555
Under Memorandum of Understanding DOE 40-550-75
NRC Fin No. A1010
Availability
Notice
Abstract
An experimental investigation was performed to determine the
effects of pressure differential, fire exposure conditions
and sample construction on the performance of fire stops
used to seal electric cable and conduit penetrations through
concrete fire barriers. Experiments were conducted using a
differential pressure of -12 to +125 Pa, various sample
constructions and two fire exposure conditions. Results
indicate that the effect of pressure differential is not
significant for those fire-stop materials which do not have
cracks or other through openings that allow passage of gases
during fire-exposure. However, if the material allows
passage for gases through cracks or other holes, such as
those left open after a cable pull, the pressure differential
affects fire stop performance. Effects of the size
of the opening; size, location and type of the penetrating
items installed through the opening; and severity of fire
exposure on the performance of fire stops are demonstrated.
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