Smoke Detector Tests Reveal Design Flaw

June 2006
Fire Chief;Jun2006, Vol. 50 Issue 6, p14
Trade Publication
The article reports that the smoke detector tests conducted by systems engineer James R. Qualey on two electric smoke detector models found a flaw in their design. A test which uses UL 268-type fire tests showed that models responded differently to black smoke from flammable liquid fires. Qualey explained that the different response of the detectors was due to differing plastic types in the smoke chamber components.


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