MHYBV矿用拉力电缆8芯带插头3X2.5平邑

MHYBV矿用拉力电缆8芯带插头3X2.5平邑
产品用途：矿用通信拉力电缆MHBYV-7-1适用于KTC通讯控制保护系统中配套用的煤矿用聚乙烯绝缘镀锌钢丝编织铠装聚氯乙烯护套通信电缆。主要用于煤矿井下通讯控制装置，煤矿井下采区胶带机保护控制装置，煤矿井下采区工作面通信控制装置等系统。

矿用拉力电缆MHYBV2*2.5+5*0.75

执行标准: MT818.14-1999、Q/YZRC003-2009。

产品型号：MHYBV-7-1、MHYBV-7-2、MHYBV-5。

使用温度：—40℃～ +70℃。

安装温度：不低于—10℃。



Telecommunication bureau of logarithmic line sequence, sequence multi-cores cable, communication cable sequence chromatography, manufacuring HYA communication cable order chromatographic know table multi-cores cable order to 25 as the basic unit, basic cable has five basic colors, order respectively, white, red, black, yellow, purple, each basic color inside and includes five kinds of color sequence are blue, orange, green, brown, gray, or all the lines of 1 ~ 25 to the sort of white and blue, white orange, white, green, white, brown, white; Red and blue, red and orange, red and green, red and brown, red and gray; ...... Purple blue, purple orange, purple green, purple brown, purple gray.

　　带钢丝绳PVC弹性体行车控制电缆使用特性:额定电压：U0/U450/750V及以下高工作温度：100℃低环境温KVVRC带钢丝绳的PVC行车控制电缆KVVRC带钢丝绳PVC行车控制电缆具有柔软、耐磨、防油等特性，线旁附钢丝绳，增强抗拉力。

plc编程中常说的双线圈双重输出是什么呢，我们简单具体说明下，首先看下图：双线圈动作梯形图双线圈就是输出在多个位置被使用就像上图的Y1，那么双线群造成的结果是怎么样的，我们用软件对上图进行一个模拟监控，三种情况，M1=ON、M3=OFF，M1=ON、M3=ON，M1=OFM3=ON。1，M1=ON、M3=OFF情况1修改M1值为ON状态，M3值为OFF状态，发现Y1=OFF。2，M1=ON、M3=ON情况2修改M1值为ON状态，M3值也为ON状态，发现Y1=ON。

　　YJV32YJLV32YJV33YJLV33YJV42YJLV42YJV43YJLV43交联聚乙烯绝缘聚氯乙烯/聚乙烯护套钢丝铠装电力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。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。

说明：

Propane burner plane with the flame of 750 ℃ and contact sample, sample in the compulsory blowing (5 m3 / min air emissions, wind speed 0.9 m/s), must be in vertical flame combustion is not up to 20 minutes, cable within 2.5 meters flame spread out on his own. IEC60332 is divided into A, B, C and D to evaluate the flame retardant performance.
Main technical performance and indexes of signal cable for mining: 20 ℃ when the conductor dc resistance Ω / 7/0.28 7/0.28 or less 45 km (3 steel 4 copper) 73 1/0.8 or less or less natural attenuation (800 ~ 1000 hz) 36.7 dB/km acuities were 1.1, 1.3, 0.95 or less 20 ℃ or less insulation resistance of cable insulation wire core M Ω. Km 3000 line of work or capacitance (800 ~ 1000 hz) uF/km 0.06 or less near end crosstalk attenuation (800 ~ 1000 hz) dB / 500 M or 70 inductor (800 ~ 1000 hz) UH /km is less than or equal to 800. The ac power frequency voltage is 1.5KV/1min. The dc resistance difference is less than or equal to 2% of the loop resistance
今天就来教教大家怎么玩玩51单片机，当然了，首先有一个必要的条件就是你必须要会c语言，目前大学里面有开的关于微机原理的课的，上课的时候，老师还说：“你们要多学学汇编语言，对你们以后学习单片机有用”，而事实上后来才发现c语言才是重要的。要想玩单片机，就必须要知道重要的是什么，对于一块51单片机的开发板来说，重要的就是要认认真真的看它的原理图，原理图才是重要的。今天先说说基本的，就是怎么玩流水灯，老样子，先看看原理图：可以看到，总共是八个LED灯，都是由单片机的P1口控制的，并且可以知道当端口为低电平时，灯就会亮，大家一定要注意这一点，目前市场上51的开发板还是有非常多的，你必须要知道你的板子上LED灯是高电平使能还是低电平使能。
Telephone line -HPV HYV HPVV HVV HVV HVV 4*0.5 4*0.4 4*0.6 4*0.7 4*0.8 4*0.9 4*1.0 4*1.2 4*1.5 HPV HYV HPVV HVV HVV 4*0.5 4*0.4 4*0.4 *0.6 4*0.7 4*0.8 4*0.9 4*1.0 4*1.2 4*1.5 and other series of municipal communication cables: YD/T322-1996 manufacuring hya HYAT duct (widely used in metropolitan area network, in the construction of communication network is given priority to with overhead and pipe installation, main transmission audio signal) HYAT filling type communication cable (used in metropolitan area network, in the construction of communication network is given priority to with pipe installation, have water-blocking effect, without charging protection, main transmission audio signal) HYAC messenger communication cable (used in metropolitan area network communication network construction, aerial installation, construction is convenient, Main transmission audio signal) HYAT53 filling type armoured cable (used in metropolitan area network communication network construction in complex environment, directly buried underground, water resistance, the rat bite, without charging protection, main transmission audio signal) the first branch factory of tianjin cable factory specializing in the production of research and development; Mining signal cables; Communications cables for coal mines; Coal mine control cables; Coal mine signal cables; Mining monitoring cables; Monitoring cables for mining; Telemetry cable for mine; Mine monitoring lines; Mine monitoring line; Mining telephone cables; Mine explosion-proof cable; Mining cables; Mine fire retardant cable; Sensor cable; All the products have the certificate of "coal safety sign" and have complete specifications. The products are widely used in various coal mine systems and coal mine monitoring systems. Sales to coal companies and mining groups throughout the country; And become a number of mining e companies supporting products, established long-term cooperation relations, products have been users praise and trust! 

 结构：

1电源线；2信号线；3软铜编织；4聚酯薄膜；5聚氯乙烯内衬层；6镀锌钢丝编织铠装层；7聚氯乙烯总护套；8填充绳；9聚氯乙烯护套；10聚酯/铝复合膜。

主要性能：

　　阻燃电缆指标1．成品电缆导体(R类)直流电阻(符合GB3956规定)2．工频电压试验：交流50HZ3.5KV/5min不击穿IEC阻燃等级为了评定线缆的阻燃性能优劣，分别制定了IEC、IEC和IEC三个标准。
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