Article(id=1282036066542653532, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282036038860255373, articleNumber=null, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2025.11.0453, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1749312000000, receivedDateStr=2025-06-08, revisedDate=1755187200000, revisedDateStr=2025-08-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1783590817342, onlineDateStr=2026-07-09, pubDate=1764259200000, pubDateStr=2025-11-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783590817342, onlineIssueDateStr=2026-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783590817342, creator=13701087609, updateTime=1783590817342, updator=13701087609, issue=Issue{id=1282036038860255373, tenantId=1146029695717560320, journalId=1146031787341344770, year='2025', volume='35', issue='11', pageStart='1', pageEnd='268', issueExtLink='null', onlineDate='null', pubDate='1764259200000', pubDateStr='2025-11-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783590810742, creator='13701087609', updateTime=1783593801313, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1282048582291276616, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282036038860255373, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1282048582295470921, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1282036038860255373, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=157, endPage=163, ext={EN=ArticleExt(id=1282036066781728861, articleId=1282036066542653532, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Study on mechanism of increased fire spread rate of suspended cables, columnId=1149733270084042840, journalTitle=China Safety Science Journal, columnName=Public safety, runingTitle=null, highlight=null, articleAbstract=

In order to clarify the influence of droop angle on suspended cable fire spread characteristics, a cable combustion test platform was constructed. The cable combustion tests with different droop angles (θ) and different cross-sectional areas (S) were carried out. The results show that the flame presents an axisymmetric conical state when the cable is arranged horizontally. When the droop angle is greater than 0°, as the combustion progresses, the flame shape transits from a multi-branched cone to an extended state along the cable direction. The flame spread behavior of cable can be divided into three stages: the advance of the pyrolysis front in stage I increases FSR, the interaction between thermal convection and thermal radiation in stage II leads to a rapid increase of FSR. Stage III thermal radiation dominates the continuous increase of FSR. The radiation heat flux generated by combustion plays a leading role in the increase of FSR. The rapid increase of radiation heat flux and the appearance of peak value are consistent with the three stages of fire spread, which can be used as a sign of the increase stage. The increase of θ and the decrease of S will promote the increase of FSR. According to the Stephen-Boltzmann law, the relationship between θ and S for the increase of FSR is proposed, and the theoretical index of the relationship is in good agreement with the experimental index.

, authors=Wei PENG1, 2, Yiting WANG2, Shaojie ZHANG**, 2, Junsheng REN2, Yue ZHOU2, Heng GU2, authorsList=Wei PENG, Yiting WANG, Shaojie ZHANG, Junsheng REN, Yue ZHOU, Heng GU, authorCompany=null, correspAuthors=Shaojie ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1282036067268268128, articleId=1282036066542653532, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=悬挂电缆火蔓延速率增加机制, columnId=1149733271510106222, journalTitle=中国安全科学学报, columnName=公共安全, runingTitle=null, highlight=null, articleAbstract=

为明确下垂角度对电缆火蔓延特性的影响,构建电缆燃烧试验平台,开展不同下垂角度(θ)及不同横截面积(S)的电缆燃烧试验。结果表明:电缆水平布置时火焰呈现轴对称锥形状态;下垂角度大于0°时,随着燃烧的进行,火焰形态从多分叉锥形过渡到沿着电缆方向延伸状态。电缆火蔓延行为可分为3个阶段:阶段I热解前沿推进使火蔓延速率(FSR)增加;阶段II热对流与热辐射相互作用导致FSR快速增加;阶段III热辐射主导使FSR持续增加。燃烧产生的辐射热通量对FSR增加起主导作用,辐射热通量的迅速增加及峰值的出现与火蔓延3个阶段具有一致性,可作为增加阶段发生的标志。θ的增大和S减小会促进FSR增加,根据斯蒂芬-玻尔兹曼定律,提出FSR发生增加的θS关系式,且关系式理论指数与试验指数吻合较好。

, authors=彭伟教授1, 2, 王依婷2, 张少杰**, 2, 任俊生2, 周月2, 谷恒2, authorsList=彭伟教授, 王依婷, 张少杰, 任俊生, 周月, 谷恒, authorCompany=null, correspAuthors=张少杰, authorNote=

彭伟(1981—),男,安徽淮南人,博士,教授,主要从事火灾防治方面的研究。E-mail:

, correspAuthorsNote=
** 张少杰(1991—),男,安徽太和人,博士,讲师,主要从事火灾动力学、锂离子电池安全方面的研究。E-mail:
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悬挂电缆火蔓延速率增加机制
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彭伟教授 1, 2 , 王依婷 2 , 张少杰 **, 2 , 任俊生 2 , 周月 2 , 谷恒 2
中国安全科学学报 | 公共安全 2025,35(11): 157-163
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中国安全科学学报 |公共安全 2025 , 35 (11) : 157 -163
悬挂电缆火蔓延速率增加机制
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彭伟教授1, 2 , 王依婷2, 张少杰**, 2 , 任俊生2, 周月2, 谷恒2
作者信息
  • 1安徽理工大学 公共安全与应急管理学院,安徽 合肥 231131
  • 2安徽理工大学 安全科学与工程学院,安徽 淮南 232000
通讯作者:
** 张少杰(1991—),男,安徽太和人,博士,讲师,主要从事火灾动力学、锂离子电池安全方面的研究。E-mail:
作者简介:

彭伟(1981—),男,安徽淮南人,博士,教授,主要从事火灾防治方面的研究。E-mail:

Study on mechanism of increased fire spread rate of suspended cables
Wei PENG1, 2 , Yiting WANG2, Shaojie ZHANG**, 2 , Junsheng REN2, Yue ZHOU2, Heng GU2
Affiliations
  • 1School of Public Safety and Emergency Management, Anhui University of Science and Technology, Anhui Hefei 231131, China
  • 2School of Safety Science and Engineering, Anhui University of Science and Technology, Anhui Huainan 232000, China
出版时间: 2025-11-28 doi: 10.16265/j.cnki.issn1003-3033.2025.11.0453
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为明确下垂角度对电缆火蔓延特性的影响,构建电缆燃烧试验平台,开展不同下垂角度(θ)及不同横截面积(S)的电缆燃烧试验。结果表明:电缆水平布置时火焰呈现轴对称锥形状态;下垂角度大于0°时,随着燃烧的进行,火焰形态从多分叉锥形过渡到沿着电缆方向延伸状态。电缆火蔓延行为可分为3个阶段:阶段I热解前沿推进使火蔓延速率(FSR)增加;阶段II热对流与热辐射相互作用导致FSR快速增加;阶段III热辐射主导使FSR持续增加。燃烧产生的辐射热通量对FSR增加起主导作用,辐射热通量的迅速增加及峰值的出现与火蔓延3个阶段具有一致性,可作为增加阶段发生的标志。θ的增大和S减小会促进FSR增加,根据斯蒂芬-玻尔兹曼定律,提出FSR发生增加的θS关系式,且关系式理论指数与试验指数吻合较好。

悬挂电缆  /  火蔓延速率(FSR)  /  下垂角度  /  横截面积  /  热通量

In order to clarify the influence of droop angle on suspended cable fire spread characteristics, a cable combustion test platform was constructed. The cable combustion tests with different droop angles (θ) and different cross-sectional areas (S) were carried out. The results show that the flame presents an axisymmetric conical state when the cable is arranged horizontally. When the droop angle is greater than 0°, as the combustion progresses, the flame shape transits from a multi-branched cone to an extended state along the cable direction. The flame spread behavior of cable can be divided into three stages: the advance of the pyrolysis front in stage I increases FSR, the interaction between thermal convection and thermal radiation in stage II leads to a rapid increase of FSR. Stage III thermal radiation dominates the continuous increase of FSR. The radiation heat flux generated by combustion plays a leading role in the increase of FSR. The rapid increase of radiation heat flux and the appearance of peak value are consistent with the three stages of fire spread, which can be used as a sign of the increase stage. The increase of θ and the decrease of S will promote the increase of FSR. According to the Stephen-Boltzmann law, the relationship between θ and S for the increase of FSR is proposed, and the theoretical index of the relationship is in good agreement with the experimental index.

suspended cable  /  flame spread rate (FSR)  /  droop angle  /  cross-sectional area  /  heat flux
彭伟教授, 王依婷, 张少杰, 任俊生, 周月, 谷恒. 悬挂电缆火蔓延速率增加机制. 中国安全科学学报, 2025 , 35 (11) : 157 -163 . DOI: 10.16265/j.cnki.issn1003-3033.2025.11.0453
Wei PENG, Yiting WANG, Shaojie ZHANG, Junsheng REN, Yue ZHOU, Heng GU. Study on mechanism of increased fire spread rate of suspended cables[J]. China Safety Science Journal, 2025 , 35 (11) : 157 -163 . DOI: 10.16265/j.cnki.issn1003-3033.2025.11.0453
  • 安徽高校自然科学研究项目(2024AH040063)
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2025年第35卷第11期
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doi: 10.16265/j.cnki.issn1003-3033.2025.11.0453
  • 接收时间:2025-06-08
  • 首发时间:2026-07-09
  • 出版时间:2025-11-28
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  • 收稿日期:2025-06-08
  • 修回日期:2025-08-15
基金
安徽高校自然科学研究项目(2024AH040063)
作者信息
    1安徽理工大学 公共安全与应急管理学院,安徽 合肥 231131
    2安徽理工大学 安全科学与工程学院,安徽 淮南 232000

通讯作者:

** 张少杰(1991—),男,安徽太和人,博士,讲师,主要从事火灾动力学、锂离子电池安全方面的研究。E-mail:
参考文献
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2种不同金属材料的力学参数

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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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