分别用ZR、ZRD、ZRDW型号表示。
如编织钢丝铠装氟塑料护套表示为“94”。
4.电缆允许最小弯曲半径:非铠装、联锁或编织铠装电缆不小于电缆外径的6倍铜带屏蔽或钢丝、钢带缠绕铠装电缆不小于电缆外径的12倍5.阻燃特性:符合GB/T19666-2005标准,A类或B类。

6.电力电缆 VV VLV VV22 VLV22 VV32 (5*6+*240+1)NH耐火加大零线等非标电缆7.通信机房用阻燃软结构电缆(通信设备电源线)ZRVVR(6-240MM2)8.高速公路紧急电话电缆GHYATGHYAT5。
Our company strictly implements the system of self-inspection, mutual inspection and special inspection, and it is strictly prohibited to make any defective semi-products out of the factory. To organize the production according to the special technical requirements of customers and provide qualified products to customers.
电缆导体长期工作温度应不超过+70℃。
电缆敷设环境温度:聚氯乙烯外护套电缆应不低于0℃;聚乙烯外护套电缆应不低于-20℃。
电缆的允许弯曲半径:非铠装电缆应不小于电缆外径的10倍;铠装电缆应不小于电缆外径的15倍。

4.工作电容:平均值52±2nF/km5.远端串音防卫度:150kHZ时指定组合的功率平均值大于69dB/km。
产品特性:电缆的额定电压:500V●电缆的最低工作温度不低于-40℃.●电缆的最高长期允许工作温度:聚乙烯绝缘不高于70℃;交联聚乙烯绝缘不高于90℃。
基础和竖井接地就不说了。
你能够理解的有:1.单元接地主线(意思就是你所在单元总的PE线),就是从你家里配电箱出来的双色(绿黄相间的),这就是每户的接地主线。
这条线直接经过桥架或者预埋管到的总等电位箱。
卫生间局部等电位(就是你所说的这个),是通过每户卫生间与楼板钢筋焊接的,与卫生间设定的防雷引下线焊接一体的。
一般采用的热镀锌扁铁。
如图:第一个是局部等电位,第二个是接地跨接。
说卫生间局部等电位都是可靠接地的,没有扁铁的局部等电位都是假的。
Specializing in the production for the telecommunications, computing facilities, instruments and meters connect with wire and cable series product -- -- -- -- -- - RVVP coal RVV series of products: coal mine product logo - logo - Ann Ann symbol certification - coal Ann query - AnBiao query on a coal production license MA for certification to provide coal mine product logo AnBiao certificate, MA certificate, Ann card flame retardant communication cable MHYV MHJYV MHYBV MHYA32 MHYYV MHYY32 flame retardant cable: MHYVR MHYBV MHYV32 MHYVR MHYVP MHYBV MHYVR32 coal mine fire retardant control cable: HYA22 zrc-hya zrc-hyat zrc-hyat23 HYA23 HYA53 HYAT HYAT23 HYAT53 HYAC HJVV HPVV HPVV22 PYV azv HYV22 PYV22 control cable: KVV KVVP kvvv22 kvp2 kvp2 kvp2-22 KVVR KVRP special cable HP KP H Your satisfaction - our unremitting pursuit!
变频调速技术在石油、冶金、发电、铁路、矿山等工业方面得到了广泛的使用。
1.变频电缆对称性设计对于1.8/3KW及以下变频电机专用电缆,和对称3+1芯和4芯电缆仅可用于主电源的输入缆,但**使用对称结构电缆。
最高传输频率分别为30MHz与100MHz。
本产品适用于市内、近郊和局部地区的通信线路。
导电芯线采用标称直径为0.4、0.5、0.6、0.7、0.8、0.9mm的软铜线。
绝缘单线绞合成对后采用心式(10对、20对)或单位式(30对及以上)绞合成缆芯,每个基本单位的子单位扎带颜色相同,各基本单位扎带颜色按全色谱要求排列。

RVVSP shielded twisted-pair cable, used in the field lines, electrical instrumentation, telecommunications, broadcasting, anti-theft alarm system, building intercom system, video monitoring system, electronic equipment and automation devices such as shielding line. (transmission RS485 signals /) our factory new micro sales letter, micro signal: 15075619608 QQ is not convenient to micro letter contact! Conditions of use 1: using temperature (℃) : - 40 ~ 60 + 2: relative humidity: 98% at 40 ℃ 3: install the laying temperature is not low, such as: 15 ℃ 4: allowed minimum bending radius: indoor is not less than five times, 10 times outdoor structure 1:2: tinned copper wire line core PVC insulated/twisted-pair cable 3: film around the package/tin copper wire mesh grid block 4 PVC sheathed rated voltage: 300 v / 300 v, 300 v / 300 v with a standard: GB/T5023-1997 RVVP cable series: Can achieve 2 core to 24 core, line diameter has: 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, etc. (zr-rvvsp flame retardant),(nh-rvvsp fire resistance),(wdz-rvvsp low smoke halogen free) special model can be produced as required
四、规格:、HYAT、HYA53、HYAT53导体标称直径0.40.50.60.70.80.9芯数5×2、10×2、20×2、30×2、50×2、100×2、200×2、300×2、400×2、GHYAT53导体标称直径0.50.60.70.91.2芯数1×42×。
5、型号:MHYAV、MHYA32、MHYV、MHYVR、MHYVRP、MHYVP、MHY32、MHJYV6、产品说明:型号名称MHYV煤矿用聚乙烯绝缘聚氯乙烯护套通信电缆MHYVR煤矿用聚乙烯绝缘聚氯乙烯护套通信软电缆MHYVP煤矿用聚乙烯绝缘编织屏蔽聚氯乙烯护套通信电缆MHYVRP煤矿用聚乙烯绝。
字符数组使用嵌套的办法,把一串字符组合成字符串,在c中充当字符串变量的作用。
为了使用中的方便,c运行在声明字符数组时用字符串为字符数组初始化,在标准输入输出中,也同样提供了%s格式输入输出以及其他输入输出函数进行字符串的操作。
相比较而言,数值数组就没有这么幸运,输入输出必须一个一个变量。
对于字符串的处理,字符指针同样可以,c规定,把字符串常量赋给一个字符指针,就是把这个字符串常量的首地址赋给了这个指针,很明显,这个字符指针实际上变成了一个字符数组,只界限不明朗。
HYV主要用于语音信号传输。
结构:导线:实心退火铜线。
铜线直径为:0.4,0.5,0.6,0.7mm。
绝缘:高密度聚乙烯,并按照全色谱标准标明绝缘线的颜色绝缘线对:把单根绝缘线按照不同的节距扭绞成对,以最大限度减少串音,并采用规定的色谱组合以便识别线对。
The mine communication cable has the characteristics of fire prevention, damp proof and so on. The reason of fire is mainly caused by overloading, short circuit, excessive resistance and external heat source. Under the fault conditions such as short circuit, local overheating and external heat, the insulation resistance of insulating materials decreases, the insulation capacity is lost, and even the fire is caused.

We comply with the following production, sales and delivery criteria for all products: 1) production time: the goods can be delivered on the earliest day when there is a spot, and the quantity needs to be customized. 2) sales discount: large quantity is preferred. 3). Sales volume: teleconference. 4) delivery standard: the freight charge shall be borne by the seller. The arrival time is generally 3 days. If it is true that the products provided by our company are not in conformity with the requirements of the contract due to the quality problem of the products, we agree to the buyer to exchange or reject the products and return the goods.
ZR-YJV22ZR-YJLV22ZR-YJV23ZR-YJLV23交联聚乙烯绝缘阻燃聚氯乙烯/聚乙烯护套钢带铠装动力电缆敷设在室内、隧道内直埋土壤,电缆能承受机械外力作用。
2、可根据用户要求,生产0.6/1KV圆形导体结构或扇形导体结构的各类五芯电缆。