ABSTRACT
Class C fires involve energized electrical equipment,
which fall into the category specifically targeted by halon-
based suppression systems. To prevent damage to the equip-
ment, the suppression agent must not be a conductor of
electrical energy. It is most common to use dry chemical
or gas-based suppression systems when working with this
type of fire. The final class of fire, Class D, focuses on fires
involving certain types of metals, including magnesium,
titanium, potassium, and sodium. These fires require specia-
lized suppression equipment because a by-product of the
combustion process is oxygen, which can then reinforce the
combustion process. Because of the highly specialized sup-
pression equipment involved, the implementation cost is
high. Consequently, additional precautions involving the
use, storage, and handling of these metals are part of the
protection regimen.
