Detection Systems

DOE-STD-1066-99

14.6.2.4

Duct entrance filters may not require fire screens unless a significant

amount of combustible materials are present in the exhaust stream exiting

the duct.

14.7 Detection Systems

14.7.1

Detectors

14.7.1.1

Automatic fire detectors should conform to NFPA 72, "National Fire Alarm

Code."

14.7.1.2

Detectors should be rate compensated type heat detectors.

14.7.1.3

Detectors should be approved for the specified use.

Detectors should be of the 190 oF (89 oC) temperature range unless

14.7.1.4

operations require higher temperature air flows (see Appendix B for

maximum filter operating temperatures).

14.7.1.5

Existing detectors that are supervised, with suitable, equivalent, and

reliable methods of detection (as determined by the AHJ) that are not rate

compensated type or not listed may continue to be used while they remain

serviceable.

14.7.2

Detector Location

14.7.2.1

Heat detectors or pilot sprinkler heads should be provided in ducting prior

to final filter enclosures. Airflow should be considered when determining

detector or pilot head location.

14.7.2.2

Heat detectors or pilot sprinkler heads should also be provided in the final

filter enclosures.

14.7.2.3

If filter plenum automatic deluge spray systems are actuated by pilot

sprinkler heads, heat detectors are not required in the ducting or the filter

enclosure unless specified by the AHJ.

14.7.3

System Arrangement

14.7.3.1

The detection system or pilot system should be arranged to detect a rise

in air flow temperatures, actuate automatic fire suppression systems, when

required, and transmit an alarm to the responding fire department or

constantly attended proprietary station. The fire alarm system should be

installed per NFPA 72.

14.7.3.2

A pilot operated system should only be used when automatic water deluge

spray systems are required under Section 14.8.