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- Title
Investigation of combustion, smoke, and toxicity characteristics of flame-retardant and fiber-optic cables used in nuclear power plants.
- Authors
Kim, Min Ho; Lee, Seok Hui; Jeong, Seung Yeon; Lee, Sang Kyu; Lee, Ju Eun; Kwark, Ji Hyun; Lee, Min Chul
- Abstract
The combustion, smoke emission, and toxic gas emission characteristics of four types of flame-retardant cables and two types of fiber-optic cables were investigated. The thickness, flame retardancy, and volatile components of the polymeric materials constituting the cables mainly influenced their released heat and smoke emissions. The volatile components increased the magnitude of the first peak of heat release and shortened the interval between the time to ignition and first heat release. The thickness and flame retardancy caused the formation of a char layer, which caused the peak values associated with the secondary heat release and smoke production. Fiber-optic cables with zero halogens exhibited a lower flame retardancy than that of the flame-retardant cables as they were completely pyrolyzed early but emited small amounts of smoke and toxic gases. By considering trade-off between flame retardancy and toxicity, the improvements in fire protection strategies and amendment of cable design criteria are recommended.
- Subjects
FIREPROOFING; FIREPROOFING agents; FIRE prevention; SMOKE; COMBUSTION; NUCLEAR power plants; FLUIDIZED-bed combustion
- Publication
Journal of Mechanical Science & Technology, 2023, Vol 37, Issue 2, p987
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-023-0138-x