建筑火灾升温条件下电缆耐火性能测试方法

doi:10.16265/j.cnki.issn1003-3033.2023.09.2227

中国安全科学学报 ›› 2023, Vol. 33 ›› Issue (9): 129-135.doi: 10.16265/j.cnki.issn1003-3033.2023.09.2227

建筑火灾升温条件下电缆耐火性能测试方法

胡林明¹^,²(), 何彦¹^,^**(), 高峰立³, 冯军², 张翔², 王金元⁴

¹ 重庆大学机械与运载工程学院,重庆 400044
² 应急管理部四川消防研究所国家防火建筑材料质量检验检测中心, 四川成都 610036
³ 中国建筑东北设计研究院有限公司第二设计院,辽宁沈阳 110006
⁴ 中国建筑东北设计研究院有限公司第七设计院,辽宁沈阳 110006

收稿日期:2023-03-19 修回日期:2023-06-22 出版日期:2023-09-28
通讯作者:
**何彦(1981—),女,重庆人,博士,教授,博士生导师,主要从事智能测试装备、工业大数据等方面的研究。E-mail:heyan@cqu.edu.cn。
作者简介:
胡林明 (1987—),男,四川遂宁人,博士研究生,助理研究员,主要从事阻燃与耐火电缆及其标准、检测装备等方面的研究。E-mail:hulinming@163.com。
高峰立教授级高级工程师
冯军副研究员
张翔研究员
王金元教授级高级工程师
基金资助:
国家重点研发计划项目(2021YFC3002000); 国家消防救援局科技计划项目(2023XFZD02); 应急管理部四川消防研究所基本科研业务费专项资金项目(20238803Z)

Test method for fire resistance of cables under temperature rise condition of building fire

HU Linming¹^,²(), HE Yan¹^,^**(), GAO Fengli³, FENG Jun², ZHANG Xiang², WANG Jinyuan⁴

¹ College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China
² National Center for Quality Supervision and Testing of Fire Building Materials, Sichuan Fire Research Institute of Ministry of Emergency Management, Chengdu Sichuan 610036, China
³ Second Design Institute, China Northeast Architectural Design & Research Institute Co., Ltd., Shenyang Liaoning 110006, China
⁴ Seventh Design Institute, China Northeast Architectural Design & Research Institute Co., Ltd., Shenyang Liaoning 110006, China

Received:2023-03-19 Revised:2023-06-22 Published:2023-09-28

摘要/Abstract

摘要：

为测试电缆在火灾充分发展阶段的耐火性能,首先从受火条件、判定方法、耐火时间和样品安装等方面,提出建筑火灾升温条件下电缆耐火性能测试方法(简称新测试方法,包括新方法A和新方法B);然后搭建建筑火灾升温条件下电缆耐火性能测试平台,采用传统电缆耐火性能测试方法和2种新测试方法分别测试21根电缆的耐火性能,并加以对比。结果表明:与传统电缆耐火性能测试方法相比,新测试方法能有效区分电缆耐火时间长短,而且可同时测试1~12根电缆的耐火性能,提高了测试效率。9根电缆2次耐火试验的耐火时间基本接近,新测试方法测试电缆耐火性能的重现性好。

关键词: 建筑火灾, 升温条件, 耐火电缆, 耐火性能, 升温曲线, 测试方法

Abstract:

In order to test the fire resistance of cables at the fully developed stage of fire, two test methods (method A and B) for fire resistance of cables under the temperature rise conditions of building fire were put forward from the aspects of fire conditions, judgment method, fire resistance time, and sample installation. Moreover, a test platform of cable fire resistance under the temperature rise conditions of building fire was set up. Finally, the traditional fire resistance test method and two new test methods were used to test the fire resistance of 21 cables. The results show that compared with the traditional fire resistance test method, the new test method can effectively distinguish fire resistance time of cables. The new test method can test the fire resistance of 1 to 12 cables at the same time, which improves the test efficiency. The fire resistance time of 9 cables in two fire resistance tests are approximately the same, indicating that the new test method has good reproducibility in testing the fire resistance of cables.

Key words: building fire, temperature rise condition, fire-resistant cables, fire resistance, temperature rise curve, test method

胡林明, 何彦, 高峰立, 冯军, 张翔, 王金元. 建筑火灾升温条件下电缆耐火性能测试方法[J]. 中国安全科学学报, 2023, 33(9): 129-135.

HU Linming, HE Yan, GAO Fengli, FENG Jun, ZHANG Xiang, WANG Jinyuan. Test method for fire resistance of cables under temperature rise condition of building fire[J]. China Safety Science Journal, 2023, 33(9): 129-135.

图/表 9

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消防用电设备	持续供电时间/min
火灾自动报警装置	≥180 (120)
消火栓、消防泵及水幕泵	≥180 (120)
自动喷水系统	≥60
水喷雾和泡沫灭火系统	≥30
CO₂灭火和干粉灭火系统	≥30
防、排烟设备	≥90、60、30
火灾应急广播	≥90、60、30
消防电梯	≥180 (120)

耐火时间/min	新方法A		新方法B
耐火时间/min	级别	温度/℃	级别	温度/℃
≥30	A30	842	B30	842
≥60	A60	945	B60	945
≥90	A90	1 006	B90	950
≥120	A120	1 049	B120	950
≥180	A180	1 109	B180	950

样品编号	型号规格	制造商代号	IEC 60331-21- 1999^[4] /min	新方法A/ min	新方法B/ min
S01	RTTZ 0.6/1 kV 5×2.5	M1	180	64	43
S02	RTTZ 0.6/1 kV 5×16	M1	180	73	80
S03	RTTZ 0.6/1 kV 4×50+1×25	M1	180	80	84
S04	WD-RTTZ 0.6/1 kV 5×2.5	M1	180	49	63
S05	WDZBN-YJY-0.6/1 kV 5×2.5	M2	180	31	26
S06	BTTZ-750 V 4×16	M2	180	109	118
S07	FEC 0.6/1 kV 3×10+1×4	M2	180	143	180
S08	WDZCN-YJY 0.6/1 kV 5×16	M2	180	46	55
S09	WDZCN-YJY 0.6/1 kV 5×2.5	M2	180	37	41
S10	WDZCN-YJY 0.6/1 kV 5×50	M2	180	74	88
S11	RBBY 0.6/1 kV 4×240+1×120	M3	180	57	74
S12	WDZBN-YJV-0.6/1 kV 5×10	M3	180	42	36
S13	BTTZ 750 V 4×16	M3	180	62	61
S14	BTTZ 750 V 4×16	M4	180	152	180
S15	WDZN-YJY-0.6/1 kV 5×2.5	M5	180	20	15
S16	WDZN-YJY-0.6/1 kV 5×16	M5	180	27	24
S17	WDZN-YJY-0.6/1 kV 4×50+1×25	M5	180	25	28
S18	WDZN-KYJYP2-450/750 V 5×1.5	M5	180	15	20
S19	WDZN-YJY 5×2.5	M6	180	68	70
S20	WDZN-YJY-0.6/1 kV 5×16	M6	180	71	79
S21	WDZN-YJY-0.6/1 kV 4×50+1×25	M6	180	88	95

耐火时间/ min	新方法A		新方法B
耐火时间/ min	级别	根数	级别	根数
<30	—	4	—	5
≥30	A30	6	B30	4
≥60	A60	8	B60	8
≥90	A90	1	B90	2
≥120	A120	2	B120	0
≥180	A180	0	B180	2

建筑火灾升温条件下电缆耐火性能测试方法

Test method for fire resistance of cables under temperature rise condition of building fire

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