Page 269 - CISSO_Prep_ Guide

• Uses same sized tanks,
piping, nozzles, etc.
Uses the same
quantities. Therefore, it
is good for replacement.
• Materials cost is highest
among all other
alternatives, so it is
typically used for
replacements and not
new installations.
• CEA 410
• FE 13
• NAF S-111
• ARGON
• ARGONITE
• INERGEN
• Water in the form of mist.
• Water sprinkler systems:
• Wet pipe: pipes contain water under
pressure; water automatically
discharges from open sprinklers.
Problems occur when the temperature
goes below freezing or if there is an
accidental discharge.
• Dry pipe: pipes contain air under
pressure; fire causes sprinklers to
open and air pressure to drop and
water valve to open.
• Pre-action: pipes contain air under
pressure; a supplemental detection