耐火電纜電力電纜 NH-VV NH-VV22 NH-YJV22耐火電纜
Fire Resistant Cable 耐火電纜電力電纜 NH-VV NH-VV22 NH-YJV22本產(chǎn)品適用于高層建筑、油田、電站、電廠、礦山、化工、地
鐵等要求防火條件高的場合，也時應急電源、消防泵、電梯通
訊信號系統(tǒng)的應備電纜。該產(chǎn)品具有較高的耐火能力，在經(jīng)受
火焰直接燃燒情況下，在一定的時間內(nèi)（不小于3h）不發(fā)生短
路和斷路故障，確保繼續(xù)供電以維持照明和傳輸信號，保護人
員有足夠的時間安全撤離，且有利于滅火和減少損失。
It is used in the environment with high demand on
?re resistant performance such as high-rise building, oil
?eld, 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 ?red 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
bene?t ?ghting ?re to lower damage. 一、生產(chǎn)執(zhí)行標準 GB/T19666-2005及相應的國家標準 Executive standard: GB/T19666-2005
二、使用條件 Working Condition
1、交流額定電壓：U0/U（V系列：600/1000V，K系列：
450/750V，B系列450/750V）。
2、電纜zui高長期工作溫度
① 阻燃聚氯乙烯絕緣及護套：70℃和105℃兩種；
② 交聯(lián)聚乙烯絕緣：90℃；。
3、電纜安裝敷設溫度應不低于0℃。
4、敷設推薦的允許彎曲半徑：電力電纜：單芯電纜
≥40D；多芯電纜≥30D?？刂齐娎|：≥12D。B系列塑料電線：
≥4D（D＜25mm時）；≥6D（D≥25mm時）。
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 ?ame 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、基本型號、名稱如表1 Type and Description in Table 1
Table 1
型 號
Type
名稱
Description
注：本公司
還可以向用戶提供鋼絲
鎧裝結構的耐火電纜，
訂貨時可將原型號中
的“22”改為“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
銅芯聚氯乙烯絕緣耐火電線
Fire resistant wire with Cu core, PVC insulation
銅芯聚氯乙烯絕緣聚氯乙烯護套圓形耐火電線
Round type ?re resistant wire with Cu core, PVC insulation and sheath
NH-KVV
NH-KVV22
銅芯聚氯乙烯絕緣聚氯乙烯護套耐火控制電纜
Fire resistant control cable with Cu core, PVC insulation and sheath
銅芯聚氯乙烯絕緣聚氯乙烯護套鋼帶鎧裝耐火控制電纜
Fire resistant control cable with Cu core, PVC insulation and sheath, steel tape armor
NH-VV
NH-VV22
銅芯聚氯乙烯絕緣聚氯乙烯護套耐火電力電纜
Fire resistant power cable with Cu core, PVC insulation and sheath
銅芯聚氯乙烯絕緣聚氯乙烯護套鋼帶鎧裝耐火電力電纜
Fire resistant power cable with Cu core, PVC insulation and sheath, steel tape armor
NH-YJV
NH-YJV22
銅芯交聯(lián)聚乙烯絕緣聚氯乙烯護套耐火電力電纜
Fire resistant power cable with Cu core, XLPE insulation and PVC sheath
銅芯交聯(lián)聚乙烯絕緣聚氯乙烯護套鋼帶鎧裝耐火電力電纜
Fire resistant power cable with Cu core, XLPE insulation and PVC sheath, steel tape armor
136四、規(guī)格范圍如表2 Speci?cation Range in Table 2
Table 2
型 號
Type
電壓等級（V）
Voltage degree
規(guī)格、截面
Speci?cation
Cross section area
NH-VV、NH-VV22、NH-YJV、NH-YJV22 600/1000
芯 數(shù)：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 數(shù)：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 數(shù)：1~5芯
截 面：2.5~240 (mm2
)
Core No.:1~5 core
Cross section area: 2.5~240 (mm2
) 五、技術特性 Technical Performance
1、產(chǎn)品的電氣性能和物理機械性能與普通同類產(chǎn)品相
同；
2、電纜的載流量和普通同類產(chǎn)品相同；
3、耐火特性應符合GB/T19666-2005標準要求：電纜在
燃燒試驗期間2A熔絲不熔斷。
4、耐火電纜的參考外徑，截面在25mm
2
及以下的比普通
同型號的產(chǎn)品規(guī)格大15％，截面在25mm
2
以上的比普通同型
號產(chǎn)品規(guī)格大25％。
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 ?re 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、使用注意事項 Cautions
1、電纜接頭時，導體和絕緣之間應用四層云母帶重疊繞
包扎緊作為耐火層，其它施工方法與同類產(chǎn)品*；
2、電纜應嚴格避免銳器損壞，否則會降低電纜的耐火性
能。
1: Four layers of mica tape should be wrapped
around between insulation and conductor as ?re 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 ?re resistant performance of cable.
七、交貨要求 Delivery length
允許根據(jù)雙方協(xié)議長度交貨；長度計量誤差不超過
±0.5%。
Delivery length of cable depends on both agreements
with length error allowance of ±0.5%