耐火控制电缆NH-KVV NH-BV NH-BVV耐火电缆
Fire Resistant Cable耐火控制电缆NH-KVV NH-BV NH-BVV本产品适用于高层建筑、油田、电站、电厂、矿山、化工、地
铁等要求防火条件高的场合，也时应急电源、消防泵、电梯通
讯信号系统的应备电缆。该产品具有较高的耐火能力，在经受
火焰直接燃烧情况下，在一定的时间内（不小于3h）不发生短
路和断路故障，确保继续供电以维持照明和传输信号，保护人
员有足够的时间安全撤离，且有利于灭火和减少损失。
It is used in the environment with high demand on
fire resistant performance such as high-rise building, oil
field, power station, power plant, mine, chemical industry,
subway and so on. It is also necessary cable prepared
for emergency power, fire-flight pump and communication system for elevator. In time of being directly fired by
flame, it could endure continually supplying power and
transmitted signal to keep lighting within certain time (no
less than 3 hours) for people to retreat safely and also to
benefit fighting fire to lower damage.
一、生产执行标准 GB/T19666-2005及相应的国家标准 Executive standard: GB/T19666-2005
二、使用条件 Working Condition
1、交流额定电压：U0/U（V系列：600/1000V，K系列：
450/750V，B系列450/750V）。
2、电缆zui高长期工作温度
① 阻燃聚氯乙烯绝缘及护套：70℃和105℃两种；
② 交联聚乙烯绝缘：90℃；。
3、电缆安装敷设温度应不低于0℃。
4、敷设推荐的允许弯曲半径：电力电缆：单芯电缆
≥40D；多芯电缆≥30D。控制电缆：≥12D。B系列塑料电线：
≥4D（D＜25mm时）；≥6D（D≥25mm时）。
1: AC rated voltage: U0/U（V series：600/1000V; K
series：450/750V; Bseries450/750V）
2: Max temperature of long term working is
70℃&105℃ for flame retardant cable with PVC insulation
and 90℃ for cable with XLPE insulation.
3: Temperature for installation is no lower than 0℃.
4: Recommended bending radius for installing: ≥40D
for power cable with single core; ≥30D for power cable
with multi-core; ≥12D for control cable.
B series plastic wire: ≥4D（D＜25mmw）；≥6D
（D≥25mm）
Note: D means outer diameter
三、基本型号、名称如表1 Type and Description in Table 1
Table 1
型 号
Type
名称
Description
注：本公司
还可以向用户提供钢丝
铠装结构的耐火电缆，
订货时可将原型号中
的“22”改为“32”即
可。
N o t e : W e a l s o
produce fire resistant
cable with steel wire
armor. “22”should
be replaced by “32”
when ordering
NH-BV
NH-BVV
铜芯聚氯乙烯绝缘耐火电线
Fire resistant wire with Cu core, PVC insulation
铜芯聚氯乙烯绝缘聚氯乙烯护套圆形耐火电线
Round type fire resistant wire with Cu core, PVC insulation and sheath
NH-KVV
NH-KVV22
铜芯聚氯乙烯绝缘聚氯乙烯护套耐火控制电缆
Fire resistant control cable with Cu core, PVC insulation and sheath
铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装耐火控制电缆
Fire resistant control cable with Cu core, PVC insulation and sheath, steel tape armor
NH-VV
NH-VV22
铜芯聚氯乙烯绝缘聚氯乙烯护套耐火电力电缆
Fire resistant power cable with Cu core, PVC insulation and sheath
铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装耐火电力电缆
Fire resistant power cable with Cu core, PVC insulation and sheath, steel tape armor
NH-YJV
NH-YJV22
铜芯交联聚乙烯绝缘聚氯乙烯护套耐火电力电缆
Fire resistant power cable with Cu core, XLPE insulation and PVC sheath
铜芯交联聚乙烯绝缘聚氯乙烯护套钢带铠装耐火电力电缆
Fire resistant power cable with Cu core, XLPE insulation and PVC sheath, steel tape armor
136 四、 Specification Range in Table 2
Table 2
TypeVoltage degree
Specification
Cross section area
NH-VV、NH-VV22、NH-YJV、NH-YJV22 600/1000
芯 数：1~5芯，3+2芯
截 面：2.5~240 (mm2
)
Core No.: 1~5 core, 3+2 core
Cross section area: 2.5~240 (mm2
)
NH-KVV、NH-KVV22 450/750
芯 数：2~61芯
截 面：2.5~10 (mm2
)
Core No.:2~61 core
Cross section area: 2.5~10 (mm2
)
NH-BV、NH-BVV 450/750
芯 数：1~5芯
截 面：2.5~240 (mm2
)
Core No.:1~5 core
Cross section area: 2.5~240 (mm2
)
五、Technical Performance。
1: Electric performance and mechanical & physical
performance of cable is the same to common cable in
similar category.
2: Current-loading capacity of cable is the same to
common cable in similar category.
3: Fire resistant performance shall meet the requirement of GB/T19666-2005 standard. 3A fuse wire won’t
break during burning test period.
4: Out diameter of fire resistant cable with cross section 25mm
2
or lower is bigger than that of common cable
by 15％. Out diameter of fire resistant cable with cross
section more than 25mm
2
is bigger than that of common
cable by 25％.
六、 Cautions
1: Four layers of mica tape should be wrapped
around between insulation and conductor as fire resistant
layer in connection of cable. Other installing measures
may be taken according to that for similar type cable.
2: User should strictly avoid damage on cable with
sharp-edged objects. Otherwise it would affect fire resistant performance of cable.
七 Delivery length
Delivery length of cable depends on both agreements
with length error allowance of ±0.5%