ZR-BPFFPP2氟46绝缘和护套铜丝编织铜带绕包屏蔽耐高温变频电力电缆ZR-BPFFP3氟46绝缘和护套铝聚酯复合膜绕包屏蔽耐高温变频电力电缆。
ZR-BPVVP聚氯乙烯绝缘和护套铜丝编织屏蔽变频电力电缆。
This product is suitable for connecting cables and electrical instrumentation and automatic control of the transmission line, it is compared with the ordinary plastic insulated control cables, insulation using fluorine plastic, product is higher than normal control cable temperature classification, oil resistance, waterproof, wear-resistant, resistant to corrosive gas, ageing resistance, best can, is mainly used in metallurgy, electric power, petrochemical and other industries with special requirements such as heat resistance.
Type: HB - indoor line code: V - polyvinyl chloride insulation or sheath material Y - polyethylene insulation materials ZR - flame retardant polyethylene insulation materials J - twisted lines of code, code is derived in the form of code, parallel lines of no derived code. Specification code: specification code by 2 times the nominal diameter, conductor is respectively 2 x0. X0.60 50, 2, 2 x0. 80
电缆型号、名称、规格及用途：MHYV（PUYV）聚乙烯绝缘阻燃聚氯乙烯护套矿用信号电缆2-57/0.28用于平巷、斜巷及机电耍硐室MHJYV（PUJYV）聚乙烯绝缘阻燃聚氯乙烯护套加强矿用通讯电缆2-57/0.28(三钢四铜)用于平巷、斜巷、有较好的抗拉强度MHYVP煤矿用聚乙烯绝缘编织屏蔽聚氯乙烯。
Spin cassette XF5-273 communication cable transfer box, adopting advanced technology at home and abroad, in accordance with the international advanced standard production in the eighty s of cable wiring equipment, for the city, the town of telecommunication network backbone cable and wiring cable transfer. Features: 1. The connection jumper adopts rotary clamp-type connection and is sealed with silica gel on the metal clip, because it is not only reliable and durable, but also easy to operate and repair without stripping. 2. The wiring terminals in the handover box shall be arranged in 25 pairs as a basic unit, consistent with the basic units of the local telephone cables and marked with Numbers on the terminals to facilitate construction and maintenance. 3. The structure, arrangement and installation dimensions of the wiring modules are exactly the same as those of 3M products and can be used for each other. 4. The box body is treated by electrostatic spraying, beautiful and generous, with clear lines, good anti-corrosion and waterproof performance and long service life. Main technical parameters: the environment temperature: - 40 ℃ ~ + 65 ℃ atmospheric pressure: 70 ~ 106 kpa relative humidity: 95% or less is random ends and insulation resistance between terminals and ground > 5 x 104 Μ Ω. When connecting any two ends and any terminals and grounding to 1000V ac, there shall be no breakdown or flying arc in 1min. Contact resistance between wire and terminal < 5 x lO - 3 Ω.
PLC控制电气元件PLC的学习大致分为开关量、模拟量、通信这三部分内容，控制的电气元件主要有逻辑开关器件、变频器驱动系统、伺服驱动系统、传感器的控制和数据采集系统。
从PLC的角度看有输入、输出、通信系统，输入分为开关量输入如按钮、旋钮、脚踏开关等普通输入，编码器脉冲的高速输入；输出有中继、接触器、指示灯等普通输出，还有控制伺服驱动使用的高速脉冲输出。
除了开关量的输入和输出，还有模拟量的输入与输出，比如变频器频率的控制、气阀调节使用的模拟量输出控制，电流信号、温度信号的采集使用的模拟量输入。
电缆允许的弯曲半径：对有铠装或铜带屏蔽结构的电缆应不小于电缆外径的12倍。
对有屏蔽层结构的软电缆，应不小于电缆外径的6倍。
对无铠装层的电缆应不小于电缆外径的6倍。
本产品是阻燃类产品。
二、执行标准 MT818.《煤矿用阻燃通信电缆》及企业标准Q/JG。
TheproductismanufacturedaccordingtothestandardofGB12706andGB12666orIEC,BS,DIN,ICEA,andJISuponrequest.适用范围本产品适用于工频额定电压0.6/1kV及以下配电线路或工业装置中有耐火要求的固定敷设场所使。
本厂创建于1971年，是以生产销售各类煤矿用阻燃通信电缆、矿用屏蔽电缆，矿用屏蔽通信电缆，矿用电话电缆，矿用屏蔽信号电缆，矿用阻燃信号电缆，煤矿用阻燃信号电缆、矿用阻燃控制电缆，煤矿用阻燃通讯电缆、矿用电缆、矿用通信电缆、矿用信号电缆、矿用通讯电缆、，矿用控制电缆，矿用监控电缆、传感器电缆、信号电缆。
Communication cable (including paper insulated city words line, polyolefin insulation polyolefin sheath city spring), long distance symmetrical cable (including paper insulated high frequency long-distance symmetrical cable, copper foam polyethylene high low frequency long-distance symmetrical cable and digital transmission distance symmetrical cable), small coaxial cable, coaxial and tiny, coaxial cable, coaxial radio frequency coaxial cable). ;
Direct selling by the manufacturer; "HYA communication cable /25 logarithmic cable/three types of line/line/cable; 25 large logarithmic cable HYA(1000 to 1200 to 1400 pairs)X0.4 line diameter low smoke low halogen burning large logarithmic cable wdz-hya wdz-hya53; WDZ HYA23 flame retardant with large logarithmic wire type ZR - manufacuring HYA, ZR - HYAC, ZR - HYAT, ZR - HYA53, ZR - HYAT53, ZR - HYV, ZR - HYA23, ZR - HYAT23, ZR - HYA22, ZR - HYAT22 multi-cores cable is 1000 to 1200 to 1400 to 1600 to 1800 to 2000 to 2400 manufacuring HYA multi-cores cable line by 0.4 0.5 0.6 0.7 HYAT communication cable (HYAT600 * 0.4)
接地引出线要求采用我镀锡编织铜线，和电缆铜带连接时应用铬铁锡焊，不宜用喷灯封焊，以免烧损绝缘。
③三相铜带屏蔽应分别与地线相连，注意屏蔽接地线和钢铠接地线应分别引出，相互绝缘，焊接地线的位置应尽量靠下。
对电缆端头和中间接头的基本要求：a.导体连接好；b.绝缘可靠，推荐采用辐照交联热收缩型硅橡胶绝缘材料；c.密封良好；d.足够的机械强度，能适应各种运行条件。
plc使用与继电器电路图极为相似的梯形图语言，如果用PLC改造继电器控制系统，根据继电器电路图来设计梯形图是一条捷径。
这是因为原有的继电器控制系统经过长时间的使用和考验，已经被证明能完成系统要求的控制功能，而继电器电路图又与梯形图有很多相似之处，可以将继电器电路图“翻译”成梯形图，即用PLC的外部硬件接线图和梯形图有很多想似之处，继电器系统的功能。
这种设计方法一般不需要改动控制面板，保持了系统原有的外部特性，操作人员不用改变长期形成的操作习惯。
通信电缆（包括纸绝缘市内话缆、聚烯烃绝缘聚烯烃护套市内话缆）、长途对称电缆（包括纸绝缘高低频长途对称电缆、铜芯泡沫聚乙烯高低频长途对称电缆以及数字传输长途对称电缆）、小同轴电缆、中同轴和微小同轴电缆）、同轴海底电缆、同轴射频。
The technical standard of railway signal cable product is as follows: horizontal TB/ t2476-1993 railway signal cable
Main product models: HYA, HYAC, HYAT, HYAT53, HYA53; 1. Inner conductor line diameter (mm) of HYA (pipeline/overhead) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90 logarithms (yes) : 5-3000; 2. Inner conductor line diameter (mm) of HYAC (overhead) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 logarithms (yes) : 10-300; 3. Inner conductor line diameter (mm) of HYAT (waterproof) : 0.40, 0.50, 0.60, 0.63, 0.70, 0.80, 0.90 logarithms (yes) : 10-1600; 4. Inner conductor line diameter (mm) of HYA53/HYAT53 (anti-rat bite/direct embedding) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90 logarithms (right) : HYA5310 -- 2400 HYAT53 10-6.
DJYP2V(R)P2聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套计算机用屏蔽(软)电缆。
DJYV(R)P3聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套计算机用屏蔽(软)电缆。
DJYP3V(R)聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套计算机用屏蔽(软)电缆。