Study on the influence of aging time and temperature and humidity on cable combustion characteristics
Year: 2025
Type: article
Abstract: To investigate the effects of temperature and humidity on PVC cable combustion during thermal aging and its temporal variations. Three conditions: 85℃/90℃ thermal aging, 85℃/85% humidity damp-heat aging. Tested combustion characteristics with cone calorimeter, analyzed ignition time, heat release rate, fire performance index, smoke production rate, and CO/CO2 volume fraction. Results: 85℃ aging and damp-heat aging increased ignition time from 17s to 27s, 90℃ aging had little effect, stable at 25s. During combustion, cable material changed from hot thick to hot thin, heat release rate decreased with aging days, peaking three times. 85℃ aging reduced heat release rate to 130 KW/m2, 90℃ and damp-heat aging delayed to 160 KW/m2 and 140 KW/m2 respectively. Fire risk was higher for 6 and 5 days aging compared to 85℃. Aging days reduced flue gas, but high temperature and humidity increased production.
DOI: 10.54097/sm8j9q60
Authors: Qishen Lv, Zhiren Tian, Chengwei Zhang, Weili Zhao, Bo Gong, Jinqiang He
Institution: China Southern Power Grid (China)
Language: English
Subfield: Safety, Risk, Reliability and Quality
Field: Engineering
Domain: Physical Sciences
SDG: Climate action
Open Access status: diamond
OpenAlex ID: W7090365392
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