Automatic Data Generation Method for Precise Ceiling Temperature Prediction of Cables Fire in the Utility Tunnel and Full-Scale Experimental Verification

Sun, Bin

doi:10.1007/s10694-022-01294-3

Cited by 5 publications

(3 citation statements)

References 43 publications

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Section: Introductionmentioning

confidence: 99%

“…When a fire breaks out in a utility tunnel, a city's communication function, power supply function, gas supply function, etc., can be interrupted, thus resulting in paralysis of the city's main functions [3,[6][7][8]. Most studies examining fires in utility tunnels have mainly focused on the temperature inside the space [7,8]. Additionally, partial fire characteristics were reflected by establishing a theoretical model that simplified the internal structure of the field and utility tunnels.…”

Section: Introductionmentioning

confidence: 99%

“…Analyzing previous studies shows that existing research related to cable fires applied to utility tunnels has mainly been focused on the methods that can be used to calculate the amount of heat generated from a flame or suppress the spread of a flame [2][3][4][5][6][7][8][9][10]. Bian et al [2] designed a system using a sensor that detects initial heat in the event of a fire in cables.…”

Section: Introductionmentioning

confidence: 99%

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An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels

Seo,

Chung,

Song

2023

Fire

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In this study, we performed three tests to measure the fire-retardant performance of power cables installed in utility tunnels. The standards we applied for testing are ISO 5660-1, NES 713, and IEEE 1202. Specifically, we performed a cone calorimetric analysis, calculated the toxicity index, and measured the flame spread length on material surfaces. Even though the same fire-retardant chemical composites were applied, various differences in fire-retardant performance were found depending on the chemical properties of the cable sheath and insulation. We also found that gaseous substances generated during the burning of cables can serve as important risk assessment factors in fires. We determined that, in addition to the heat generated when the cable burns, the toxic gases emitted at this time can also be a risk factor. This is because it is important to consider any potential risk to a person entering as part of an initial response to an event or accident involving cables installed in utility tunnels. Moreover, in the event of a fire in the cable, there is a risk of hazardous substances flowing into the city center as toxic gases are released. Therefore, we determined that the risk of hazardous gases emitted during cable fire should be reflected in the fire-retardant performance standard.

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