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Development and Verification of Fire Tests for Cable Systems and System Components (NUREG/CR-1552)
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Publication Information
Quarterly Report 12 March - May 1980
Prepared by L. J. Przybyla, W. J. Christian
Underwriters Laboratories Inc.
Prepared for
U.S. Nuclear Regulatory
Commission
Availability
Notice
Abstract
Experiments were conducted to study the effects of a forced ventilation
on the results of the IEEE 383 flame test for tray cables.
Three sets of experiments were conducted on three types of cables.
The first set was a control in which cable samples were tested in
a free-convection environment within an 8 x 8 x 8 ft (2.44 x 2.44
x 2.44 m) enclosure. In the second set, the cable samples were
tested within an enclosure with a 1500 CFM (708 l/s) forced ventilation.
In the third set, the cable samples were tested within an
enclosure with the ventilation rate of either 1200 CFM (566 l/s)
or 1800 CFM (849 l/s). The results showed that the rate of flame
propagation and the maximum cable damage were not affected when
the enclosure and forced ventilation were used. It is recommended
that the test method be revised to specify the use of an enclosure
and forced ventilation.
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