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

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 mea...

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Main Authors: Hyun Jeong Seo, Yon Ha Chung, Tae Jung Song
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Fire
Subjects:
Online Access:https://www.mdpi.com/2571-6255/6/9/342
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author Hyun Jeong Seo
Yon Ha Chung
Tae Jung Song
author_facet Hyun Jeong Seo
Yon Ha Chung
Tae Jung Song
author_sort Hyun Jeong Seo
collection DOAJ
description 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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spelling doaj.art-61ea4e4f7ea148e0a667f01fe9c7bc142023-11-19T10:40:09ZengMDPI AGFire2571-62552023-09-016934210.3390/fire6090342An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility TunnelsHyun Jeong Seo0Yon Ha Chung1Tae Jung Song2Department of Research Planning Division, KIT Valley, Seoul 08512, Republic of KoreaDepartment of Research Planning Division, KIT Valley, Seoul 08512, Republic of KoreaDepartment of Research Planning Division, KIT Valley, Seoul 08512, Republic of KoreaIn 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.https://www.mdpi.com/2571-6255/6/9/342cable firetoxicity indexfire characteristicsutility tunnelsrisk assessment
spellingShingle Hyun Jeong Seo
Yon Ha Chung
Tae Jung Song
An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
Fire
cable fire
toxicity index
fire characteristics
utility tunnels
risk assessment
title An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
title_full An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
title_fullStr An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
title_full_unstemmed An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
title_short An Experimental Study for Deriving Fire Risk Evaluation Factors for Cables in Utility Tunnels
title_sort experimental study for deriving fire risk evaluation factors for cables in utility tunnels
topic cable fire
toxicity index
fire characteristics
utility tunnels
risk assessment
url https://www.mdpi.com/2571-6255/6/9/342
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