Industrial Dry Chemical Systems
Introduction
The KiddeŽ industrial fire protection system is a pre-engineered, dry chemical fire
suppression system. The system provides fire protection using dry-chemical agents in
accordance with NFPA Standard 17, "Standard for Dry Chemical Systems", and,
except where noted, all of the variations specified in this Manual are listed by
Underwriters' Laboratories and approved by the Factory Mutual System.
Dry chemical is a mixture of powders that is used as a fire-extinguishing agent.
The KiddeŽ industrial system uses sodium-bicarbonate base dry chemical (termed
"regular dry chemical") for Class B (flammable liquid) and Class C (electrical
equipment) fires and monammonium-phosphate base (termed "multi-purpose dry
chemical") for Class A (ordinary combustibles), Class B, and Class C fires.
The dry chemicals used in the KiddeŽ industrial system are stable at both low and high
temperatures. Various additives are mixed with the base materials to improve their
storage, flow, and water-repellency characteristics. The upper storage temperature limit
for the system is 120 degrees F (49 degrees Celsius). The lower temperature limit for the
system is -40 degrees F (-40 degrees Celsius)
The mixtures of powders used in dry-chemical extinguishing agents are non-toxic.
However, the discharge of large amounts of dry chemical may cause temporary breathing
difficulty during and immediately after discharge and may cause serious visibility
problems. After discharge, the dry chemical should be removed from any valuable equipment
to prevent a possible reaction between materials in the presence of moisture. Personnel in
contact with the agent should remove the dry chemical from their skin with tap water.
Extinguishing Properties
Regular dry chemical is highly efficient in extinguishing fires in flammable liquids.
It can also be used on fires involving some types of electrical equipment, such as turbine
generators, oil-filled circuit breakers, and transformers.
Order all system components from FIRE
PROTECTION OF CANADA INC.
.
