耐火电缆
名称:
ZHT-FRVV防火系统专用电缆
说明:
防火系统专用电缆
SpecialCableForFireResistantSystem
本产品适用于0.6/1kv及以下的高层建筑物、地铁、隧道、剧场、人防工程、石化系统等所作输配电线路或火灾报警设备、通信设备等应急设施的供电线路及信号控制线路。电缆除低烟无卤高阻燃特性外,还应能处在火焰燃烧中正常运行180min,当火灾发生时,不发生短路和断路故障,一直保障电力供给,维持系统运行。并且燃烧时烟雾透光率高、毒性低,从而显示其防火安全和消防救生的功能。
Itcanbeusednotonlytotransmitanddistributepoweronthepowerlineof0.6/1kvvoltageorbelowforhigh-risebuilding,subway,tunnel,theater,civilairdefenseengineering,petrochemicalsystem,butalsoaspowersupplywireandsignalcontrolcircuitofemergencyfacilitiessuchaspowertransmissionanddistributionsystems,firealarmequipmentandcommunicationsequipmentandsoon.BesidesoffeaturesofLSZHandhighflameresistance,itcanalsonormallyoperatewithin180minundertheconditionofflameburning.Whenthefireoccurs,short-circuitandopencircuitfaultswouldnothappen.Itcouldendurecontinuallysupplyingpowerandmaintainthenormaloperationofsystem.Duringtheprocessofburning,highlighttransmittanceandlowtoxicityofcablecanbeconsideredasanevidenceoffunctionsoffireproofingsafetyandfirerescue.
一、产品执行标准Q/ZH09.06-2010
Executivestandard:enterprisestandard
二、型号
Type
ZHT-FRVV—防火专用电缆
ZHT-FRVV—typespecialcableforfireresistance
使用特性
Characteristics
1、交流额定电压:U0/U0.6/1kv
A.C.ratedvoltage:U0/U0.6/1kv
2、工作温度:电缆导体长期工作温度为70℃。
Long-termworkingtemperatureofcableconductorshallbe70℃.
3、敷设温度:电缆敷设温度不低于0℃。
Environmenttemperatureforinstallationshallbenolessthan0℃.
4、弯曲半径:电缆弯曲半径不低于电缆外径的15倍。
Bendingradiumofcableshallbenolessthan15timesthatofcableouterdiameter.
5、阻燃、耐火特性:符合GB19666-2005。
FlameresistanceandfireresistancecharacteristicsshallmeettherequirementsspeculatedinGB19666-2005standard.
性能参数表
Performance parameter
项目 Item |
单位 Unit |
技术指标 Indices |
|||||
20℃时导体直流电阻≤ Conductor DC Resistance at 20℃ |
Ω/KM |
截面 Cross section |
1.0 | 1.5 | 2.5 | 4.0 | 6.0 |
电阻 Resistance |
18.1 | 12.1 | 7.41 | 4.61 | 3.08 | ||
试验电压 Test voltage |
V |
3.5KV,5min不击穿。 Finished cable shall endure 3.5kv voltage test for 5 min without puncture. |
|||||
绝缘电阻 Insulated resistance |
MΩ | 10 | |||||
耐火特性 Fire-resistant properties |
A类(火焰温度750试验90min,2A 熔丝不断) Type A (flame temperature of 750 test 180min, 2A fuse continued) |
- 电缆示意图
The figure of cable structure
- 注意事项
Notes:
施工时严格防止电缆损伤,降低产品性能。
Cable damage and performance reduction are strictly prevented during installation.
- 交货要求
Delivery requirement
允许根据双方协议长度交货;长度误差不超过±5%。
Delivery length of cable depends on both agreements with length error allowance of ±5%.
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