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3.1 DETECTOR APPLICATION
In view of the problems that can be expected with the misapplication and location of detection devices
aboard ship, the guidelines below should be followed when designing systems.
These tables list situations where the use of smoke detectors, ionization and photoelectric should be
avoided.
Salt water spray
Corrosive atmospheres
Water spray
Live steam
Steam tables
Showers
Humidifiers
Slop sinks
Humid outside air
Excessive tobacco smoke
Cooking equipment
Ovens
Dryers
Exhaust hoods
Metal cutting
Machining
Paint spray
Curing
Chemical fumes
Cleaning fluids
Conventional photoelectric/ionization detectors shall not be installed in cargo holds and
RO/RO spaces.
NOTE: Conventional weatherproof thermal detectors DT-135WP/DT-200WP must be
used in cargo holds and RO/RO spaces.
MOISTURE
COMBUSTION PRODUCTS AND FUMES
Section V — Detector Application and Spacing
Heat treating
Dust or lint
Sawing, drilling and grinding
Pneumatic transport
Engine exhaust
Gasoline forklift trucks
Diesel trucks and locomotives
Engines not vented to the outside
Welding and brazing
Heating element, abnormal
Dust accumulation
Improper exhaust systems
Incomplete combustion
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