MHYVRP4X0.75矿用通讯电缆丰润采购成本节省百分之三十ZR-AFFR4X1.5电缆结构镀锡软导体莺莺

MHYVRP4X0.75矿用通讯电缆丰润采购成本节省百分之三十ZR-AFFR4X1.5电缆结构镀锡软导体莺莺

　　全塑电力电缆，控制电缆获国家颁发的生产许可证，市话电缆获信息产业部电信设备进网许可证，布电线获“CCC”认证证书。 全体员工热忱欢迎各界朋友光临惠顾，共创伟业。诚心＋诚信＋专心＋精心＝客户省心 。您的满意——我们不懈之追求。



　　电缆型号、名称、规格及用途型号名称规格用途MKVV铜芯聚乙烯绝缘聚氯乙烯护套阻燃矿用控制电缆（2-14)**(0.75-2.5)铺设在室内、电缆内、管道等固定场合MKVV22铜芯聚乙烯绝缘聚氯乙烯护套钢带锴装阻燃煤矿用控制电缆(7-61)*(0.75-1.5)(。

MHYV cable, communication cable for mine use, coal mine signal cable, communication cable, MHY32 cable for mine use, PUYV cable, MHYVP cable, MHYVR cable, flame retardant coal mine communication cable, mining cable, PUYVR cable, mine telephone lines, cable for mine monitoring \ mine telephone cable.

The shielding layer can not only restrain the electromagnetic wave from transmitting, but also act as a channel for short-circuit current, which can protect the neutral core. 6/10 kv dedicated cable frequency conversion motor, considering the cables, external force is often in the process of using radial outside the cable shielding layer increased galvanized steel tape armoured layer (between shielding layer and steel tape armoured layer of sleeve).



　　MHYBV(PUYBV)煤矿用聚乙烯绝缘镀锌钢丝编织铠装阻燃聚氯乙烯护套通信电缆5-501/0.8用于机械冲击较高的平巷、斜巷煤矿用阻燃通信电缆……mh聚乙烯绝缘……Y铜质线芯……省落铝-聚乙烯粘结护层……A聚乙烯内护层……省落铜丝编织铠装……B蓝阻燃聚氯乙烯护套……V钢丝铠装蓝阻燃聚氯乙烯护。

作用于同一刚体上的大小相等，刚体上大小相等，方向相反但不共线的两个平行力组成的力系，称为力偶。力偶为矢量，力偶是一种只有合转矩（所有转矩的总合），没有合力的力系统。它又称为纯转矩。作用于物体，力偶能够使物体完全不呈现任何平移运动，只呈现纯旋转运动。作用在刚体上的两个或两个以上的力偶组成力偶系。简单的力偶是由两个大小相等，方向相反的力构成的，力偶的国际单位是N.m。若力偶系中各力偶都位于同一平面内，则为平面力偶系，否则为空间力偶系。

It is composed of different material conductors in metal sleeves with insulating materials, which are processed into a flexible solid assembly.

　　适用范围： 本产品适用于固定敷设交流50Hz额定电压(U0/U) 0.6/1KV的固定线路中,供输配电能之用常年生产聚乙稀绝缘聚氯乙稀护套；双屏视频电缆；双屏视频信号线：耐高温视频电缆；SYVPVP SYVP SYPVP-75-5 SYPVP-75-7全铜2兆线，二兆线；两兆线::内含8小。
铠装通信电缆机械保护层：53型采用0.15mm厚的轧纹钢带，纵包于基本电缆之上，两边搭接。钢带表面经涂塑处理，以防腐蚀和水份侵入。23，22型采用双层钢带绕包也有相似的性能。、铠装通信电缆护套：黑色高分子量低密度聚乙烯或聚氯乙稀护套。


　　WDZ-KYDYD铜芯无卤低烟阻燃聚烃绝缘聚氯乙烯护套控制电缆。WDZ-KYDYDR铜芯无卤低烟阻燃聚烃绝缘聚氯乙烯护套控制软电缆。WDZ-KYDYDP铜芯无卤低烟阻燃聚烃绝缘聚氯乙烯护套铜线编织屏蔽控制电缆。

　　在使用RS485接口时，对于特定的传输线路，从RS485接口到负载其数据信号传输所允许的大电缆长度与信号传输的波特率成反比，这个长度数据主要是受信号失真及噪声等影响所影响。理论上，通信速率在100Kbps及以下时，RS485的长传输距离可达1200米，但在实际应用中传输的距离也因芯片及电缆的传输特性而所差异。

　　A-DJVPV IA-DJYPV IA-DJYJPV 本安型、编织分对屏蔽（铜丝或镀锡丝）。 IA-DJVP2V IA-DJYP2V IA-DJYJP2V 本安型、铜塑复合膜分对屏蔽。 IA-DJVP3V IA-DJYP3V IA-DJYJP3V 本安型、铝塑复合膜分对屏蔽 。

在工业控制领域我们会见到并用到很多接近开关，光电开关等非接触式的开关，这类开关又按构造分为pnp,npn,还有两线制，三线制四线制之说。那么首先我们要搞清楚PNP和NPN代表的啥意思要做到知其然还要知其所以然才好区分判断。PNP表示平时为高电平，信号到来时信号为低电平。NPN表示平时为低电平，信号来到时为高电平。那么所谓的接近开关和光电开关只是内部构造不同而已。所以说我们在工程施工的时候更要学会去分别。

This process specification provides for rated voltage 450/750v, single core 1.5-500mm2 PVC insulated or polyolefin insulated flame-retardant fire resistant soft cable; And 0.6/1kv single core 4~500mm2, 2~5 cores 1.5~240mm2 polychlorinated insulated or polyolefin insulated flame-retardant fire resistant flexible cables process specifications, technical requirements, and acceptance rules. The main models of this process specification are: rated voltage 450/750v: za-rv; WDZA - RY, etc. Rated voltage 0.6/1kv: za-rvv, za-rvv22, wdza-ryy, wdza-ryy23, wdna-ryy, wdna-ryy23. 2? Usage characteristics, classification and nomenclature of cables 2.1? Service characteristics 2.1.1 cable rated operating voltage: 450/750v, 600/1000v. 2.1.3 temperature under installation should not below 0 ℃. 2.1.4 small bending radius of cables: unarmored cables: the flame retardant type is 6 times the outer diameter of cables, and the fire resistant type is 12 times the outer diameter of cables; The armored cable is 20 times the outer diameter of the cable. 2.2? The cable type consists of 5 parts: serial code, insulation, sheath material code, outer sheath and performance code.

　　电缆任一绝缘线芯的电感与电阻之比均不大于50uH/Ω。辐射电磁场在频率20-200MHz的范围内，场强为120dB（7mv）的电磁场中，电缆线芯内感应强度小于50dB。缆抗外磁场能力：在频率为50Hz，强度为400A/m的外界磁场下，当电缆的一端输入频率为1KHz，电流强度在0-100mA变化时，电缆的另一端输入信号变化值不超过±50uA。



Plastic insulated control cable: GB9330-88 scope of application: this product is fit for ac rated voltage up to and including 450/750 control, monitoring circuit and protection circuit using features: 1, the conductor long-term allowed working temperature is 70 ℃. 2, when laying environment temperature 0 ℃ or higher. 3. Minimum bending radius: 4. For unarmored cable, it shall be no less than 6 times the outer diameter of the cable. 5. The cable with armor or copper shield shall not be less than 12 times the outer diameter of the cable. 6. The soft cable with screen shielding structure shall not be less than 6 times the outer diameter of the cable.

Integrated stranded railway signal cable implementation standard GB/ t2476-1993. Railway signal cables are suitable for transmission of railway control signals, audio signals or fixed cables for fixed installation in rated voltage ac 500V or dc 1000V or below. Product name, model, specification and scope: plastic insulation and PVC sheathed railway signal cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway signal communication, fire alarm signal, telegraph and other automatic device systems with rated voltage ac 500V or dc 1000V or below.