Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles
In the actual installation of cables, inclined cable laying within covered cable trays is a relatively common method. To investigate the effects of different tilt angles on the combustion behavior of cables within covered cable trays, aluminum conductor polyethylene-insulated power cables were used...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-07-01
|
| Series: | Fire |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-6255/8/7/272 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850078074969784320 |
|---|---|
| author | Changkun Chen Yipeng Bao Boyuan Zuo Jia Zhang Yuhuai Wang |
| author_facet | Changkun Chen Yipeng Bao Boyuan Zuo Jia Zhang Yuhuai Wang |
| author_sort | Changkun Chen |
| collection | DOAJ |
| description | In the actual installation of cables, inclined cable laying within covered cable trays is a relatively common method. To investigate the effects of different tilt angles on the combustion behavior of cables within covered cable trays, aluminum conductor polyethylene-insulated power cables were used as the test cables. The flame morphology, temperature distribution, and fire spread rate during the cable combustion process were analyzed for experimental scenarios for which the cable laying angles and the ignition positions changed. The results indicate that the inclination angle of the covered cable tray has a significant impact on flame propagation and temperature distribution. For the ignition located at the lowest part of the cable, the fire spread rate increases significantly with the tilt angle. In contrast, for the ignition located at the highest part of the cable, the fire spread rate initially decreases slightly and then increases, with a relatively smaller overall change in magnitude. Under both ignition positions, the flame spread rate significantly increases at 15–30°. Therefore, in actual cable installation processes, cables within covered troughs should avoid large-angle inclinations. |
| format | Article |
| id | doaj-art-eea637a7ba214b4b91fe208b847f15e2 |
| institution | DOAJ |
| issn | 2571-6255 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fire |
| spelling | doaj-art-eea637a7ba214b4b91fe208b847f15e22025-08-20T02:45:38ZengMDPI AGFire2571-62552025-07-018727210.3390/fire8070272Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt AnglesChangkun Chen0Yipeng Bao1Boyuan Zuo2Jia Zhang3Yuhuai Wang4Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha 410018, ChinaInstitute of Disaster Prevention Science and Safety Technology, Central South University, Changsha 410018, ChinaInstitute of Disaster Prevention Science and Safety Technology, Central South University, Changsha 410018, ChinaState Grid Jiangsu Elect Power Co., Ltd., Nanjing Power Supply Co., Nanjing 210009, ChinaState Grid Jiangsu Elect Power Co., Ltd., Nanjing Power Supply Co., Nanjing 210009, ChinaIn the actual installation of cables, inclined cable laying within covered cable trays is a relatively common method. To investigate the effects of different tilt angles on the combustion behavior of cables within covered cable trays, aluminum conductor polyethylene-insulated power cables were used as the test cables. The flame morphology, temperature distribution, and fire spread rate during the cable combustion process were analyzed for experimental scenarios for which the cable laying angles and the ignition positions changed. The results indicate that the inclination angle of the covered cable tray has a significant impact on flame propagation and temperature distribution. For the ignition located at the lowest part of the cable, the fire spread rate increases significantly with the tilt angle. In contrast, for the ignition located at the highest part of the cable, the fire spread rate initially decreases slightly and then increases, with a relatively smaller overall change in magnitude. Under both ignition positions, the flame spread rate significantly increases at 15–30°. Therefore, in actual cable installation processes, cables within covered troughs should avoid large-angle inclinations.https://www.mdpi.com/2571-6255/8/7/272cable firefire spreadcovered cable tray |
| spellingShingle | Changkun Chen Yipeng Bao Boyuan Zuo Jia Zhang Yuhuai Wang Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles Fire cable fire fire spread covered cable tray |
| title | Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles |
| title_full | Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles |
| title_fullStr | Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles |
| title_full_unstemmed | Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles |
| title_short | Experimental Investigation of Flame Spread Characteristics in Cable Fires Within Covered Trays Under Different Tilt Angles |
| title_sort | experimental investigation of flame spread characteristics in cable fires within covered trays under different tilt angles |
| topic | cable fire fire spread covered cable tray |
| url | https://www.mdpi.com/2571-6255/8/7/272 |
| work_keys_str_mv | AT changkunchen experimentalinvestigationofflamespreadcharacteristicsincablefireswithincoveredtraysunderdifferenttiltangles AT yipengbao experimentalinvestigationofflamespreadcharacteristicsincablefireswithincoveredtraysunderdifferenttiltangles AT boyuanzuo experimentalinvestigationofflamespreadcharacteristicsincablefireswithincoveredtraysunderdifferenttiltangles AT jiazhang experimentalinvestigationofflamespreadcharacteristicsincablefireswithincoveredtraysunderdifferenttiltangles AT yuhuaiwang experimentalinvestigationofflamespreadcharacteristicsincablefireswithincoveredtraysunderdifferenttiltangles |