矿用双皮通信电缆MHYAV20X2X0.7太和直接出货多股绞合铜芯电缆BVR25平方批发格尽情

矿用双皮通信电缆MHYAV20X2X0.7太和直接出货多股绞合铜芯电缆BVR25平方批发格尽情

HJVV, HJVVP, HPVV communication cable: mainly used for transmitting audio, 150kHZ and below analog signals 2048kbit/s and below digital signals. Under certain conditions, it can also be used to transmit digital signals over 2048kbit/s. Used for short distance signal transmission. WeChat sales department is newly added in our factory. WeChat ID: QQ is not convenient for WeChat contact! HJVV, HJVVP, HPVV communication cable is introduced: used for distribution frame or switch to switch internal connection between the machine at all levels (including rural telephone bureau), such as the beginning of the line and terminal for connection to local telephone cable to the junction box or distribution frame, inner conductor wire diameter (mm) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, logarithmic (on) : 5-1000 HPVV low-frequency communication wiring cable wiring cable HPVV ZR - HPVV broadband/product use: It is applicable to the transmission system from the remote optical network unit to the user and the subsystem of the transmission between buildings in the building wiring system. The highest transmission fre are 30MHz and 100MHz respectively.



　　标准的2线对RS-485通讯电缆，特性阻抗120欧姆，导体为2线对4芯(2x2x24AWG)多股绞合镀锡铜丝，PE绝缘护套；为适用于复杂的工业噪声环境，特采用铝箔/聚酯复合带率+镀锡铜编制网90%率共双重，并附有独立TC接地导体，工业灰色PVC外护套，符合ULAWM2919文件规范。

　　●型号及名称YJV(YJLV) 交联聚乙烯绝缘聚氯乙烯护套电力电缆YJV22(YJLV22) 交联聚乙烯绝缘聚氯乙烯护套钢带铠装电力电缆YJV32(YJLV32) 交联聚乙烯绝缘聚氯乙烯护套细钢丝铠装电力电缆ZRC-YJV(ZRC-Y。

Fire - resistant cable refers to the cable which can keep safe operation for a certain period of time under the condition of flame burning. China's national standard GB12666.6 IEC331 (e) will fire test points A, B two levels, A grade flame temperature of 950 ~ 1000 ℃, the duration for fire, 90 min, class B flame temperature of 750 ~ 800 ℃, for fire duration 90 min, during the whole test, the sample should be under the rated voltage value of the product. Fire-resistant cable is widely used in high-rise buildings, subway, underground street, large power stations and the important industrial and mining enterprises and other related to fire security and its lifesaving, for example, fire fighting e and emergency light guide emergency facilities such as power supply circuit and control circuit.



Eight core SYV - 75-5 coaxial cable of the radio frequency cable, home video line, etc., are SYV solid core polyethylene insulated PVC sheathed coaxial cable, 75 of which means the resistance of the conductor is 75 ohms, 5 large diameter refers to the insulation of the cable is 5 mm (4.8 + / - 0.2 mm), 5 instead of 7, 7 cannot replace with 5, because insulation in large and small, not big to small generation.

Wk1为总调电位器(同步同比例升降速)；电位器WK2设定调节电机M1的转速，wK3设定调节电机M2的转速，该方法相对灵活方便。利用一台输出电压可调的稳压电源控制变频器电位器同步调速可按照图D接线。将变频器外接的二个电位器wK1，WK2并联在稳压电源的输出端，调节wK1和wK2能分别改变二台电机的转速。调节稳压电源的输出电压，即可对二台电动机进行同比例升降速。对于多台电动机连动可参照上面介绍的方法灵活运用，以上就是本人的一点经验分享，希望广大同行共同讨论学习。

Working capacitance: average 52 + / - 2nF/km

　　适用于穿管或电缆槽、架、沟内敷设。RVVZ电缆，RVV电缆，RVVP电缆，ZRVVR电缆，ZRYJVR电缆VVP屏蔽电缆RVVP屏蔽电缆执行标准JB RVVP 屏蔽电缆产品介绍：RVVP屏蔽电缆，额定电压300V/300V。
　　屏蔽数字监测电缆：JCYVP1X2X1.5电缆，JCYVP1X2X1.5电缆价格，JCYVP1X2X1.5电缆专屏蔽数字检测电缆JCYVP,屏蔽数字检测电缆JCYVP销售屏蔽数字检测电缆JCYVP,屏蔽数字。


　　DJYPVPR 聚乙烯绝缘对绞铜线编织分屏蔽及总屏蔽聚氯乙烯护套软计算机电缆 敷设室内、电缆沟、管道等要求静电屏蔽场合。DJYP2VR 聚乙烯绝缘对绞铜带分屏蔽聚氯乙烯护套软计算机电缆 敷设室内、电缆沟、管道等要求静电屏蔽场合。

　　电缆的阻燃性能符合国家标准GB 12666.5的要求。耐火BV线在导体和绝缘层之间有一层耐火云母带，耐火BV线在着火的时候仍然可以正常使用一段时间啊，电缆缆的耐火性符合国家标准GB 12666.6的要求。

　　HYAT：铜芯实心聚烯烃绝缘填充式挡潮层聚乙烯护套市内通信电缆。HYAC：铜芯实心聚烯烃绝缘自承式挡潮层聚乙烯护套市内通信电缆。HYA53：铜芯实心聚烯烃绝缘挡潮层聚乙烯护套钢塑带铠装聚乙烯护套市内通信电缆。

从上面叙说可看出，因为各种变送器的作业原理和布局不一样，然后呈现了不一样的商品，也就决议了变送器的两线制、三线制、四线制接线方式。关于用户而言，选型时应根据本单位的实际情况，如信号制的一致、防爆需求、接纳设备的需求、出资等疑问来归纳思考挑选。要指出的是三线制和四线制变送器输出的4-20mA.DC信号，因为其输出电路原理及布局与两线制的是不一样的，因而在运用中其输出负端能否和24V电源的负线相接?能否共地?这是要注意的，必要时可采纳阻隔办法，如用隔离器、安全栅等，以便和其它外表共电、共地及防止附加搅扰的发生。

Flame retardant cables and fireproof cables: the difference between the average person is very easy to confuse the concept of flame retardant cables and fireproof cables, although there are many more flame retardant cable applies to the advantages of chemical enterprise, such as low, low smoke, non-halogen, but in general, fire-resistant cable can replace flame retardant cable, and flame retardant cables can't take place of fire-resistant cable.

　　电缆敷设过程中如人为造成质量事故等（如外护层损伤）应立即修复或通知本厂销售部主要产品目录1、煤矿用阻燃通信电缆MHYV （1-10对） MHYAV （5-100对）MHYA对） MHY32 （2-19对）MHYVP(2-10对)MHYVRP（2-10对）2、煤矿用聚氯乙稀绝缘和护套阻燃控制电缆MKV。



　　3、技术指标：性能项目单位指标工作电容PF/m≤90电容不平衡PF/m≤1电感/电阻uH/Q≤25屏蔽抑制系数≤0.0120度时绝缘电阻≥5000试验电压V/1min2000阻燃特性（按照GB12666.5-90试验）A类4,产品型号及名称型号产品名称ZR-DJYP。

　　五、规格范围型号标称截面（mm2）.52.54610芯数KVVKVVPKVVP2 KVV22 KVVR 4-61KVVRP KVVP2-22KYJVKYJV22钢丝铠装电缆KVV32。 2.电缆敷设安装允许弯曲半径应不小于电缆外径的12倍。