Table 7-2. Significant Exposure Thresholds
Fire may spread through bulkhead penetrations
REVIEW QUESTIONS
such as electrical cableway openings. Although these
openings are sealed, experience has shown that even
armored cables will burn from extreme heat. Cableway
Q1.
What chemical action is defined as a
fires may be hard to extinguish because they are
chemical decomposition due to the
difficult to cool because the grouping of multiple
application of heat?
cables traps and contains heat. Also, cableways are
often run through the overhead of compartments, and
1.
Oxidation
heavy smoke hinders finding the source of the fire.
Older-style electrical cables will generate toxic black
2.
Reduction
smoke from their insulation. Newer cables in use
3.
Pyrolysis
aboard ship are designed to reduce the amount of
smoke generated.
4.
7-6