ZA-RVV222X1.5格3X1.5格崇义热卖优惠ZR-IA-YPV-1-R1X2X0.5电缆结构用途豁达

ZA-RVV222X1.5格3X1.5格崇义热卖优惠ZR-IA-YPV-1-R1X2X0.5电缆结构用途豁达

　　控制电缆泛指设备仪表供电/信号控制。代表型号：KVV/KYJV/还有其它仪表线等等产品说明:执行标准：GB/T。阻燃电缆还应符合IEC337-8标准的技术条件。尤其适用于消防与保安系统保护回路的控制及动力的传输线。



This is the flame retardant standard for bundles of cables. According to the test regulations, the 3.5m long cable samples are fixed with iron wire on the trapezoid test frame, and the number of samples is determined according to the different classification requirements of non-metallic materials. The sample is hung vertically on the back wall of the furnace, and air is introduced into the furnace through the inlet on the bottom plate.

Our products are widely used in the monitoring of major coal mines and coal mines. Sales to coal companies and mining groups; And become a number of mining equipment companies supporting products, established long-term cooperation relations, products have been users praise and trust! The city at the same time my company production of all plastic communication cable, telephone cable, logarithmic communication cable, computer cable, power cord of communication equipment and railway cable, use flare path, a variety of complete, reliable!!!!!

Integrated stranded railway cable GB/ t2476-1993. Railway cables are suitable for transmission under rated voltage ac 500V or dc 1000V and below. Product name, model, specification and scope: plastic insulation and polyurethane sheath railway 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 communication, fire alarm, telegraph and other automatic devices with rated voltage ac 500V or dc 1000V or below.



　　2、绝缘材料：高密度聚乙烯或聚丙烯，按照全色谱标准标明绝缘线的颜色。3、绝缘线对：把二根不同颜色的绝缘线按不同的节距扭绞成对，并采用规定的色谱组合以便识别线对。4、通信电缆缆芯结构：以1对为基本单位，超过25对的电缆按单位组合，每个单位用规定色谱的单位扎带绕扎，以便识别不同的单位。

如果你有一定PLC理论基础的，或者是本科毕业甚至研究生毕业系统学习过PLC全部基础知识还不能操作PLC的同志。别人说一些专业名词你大概能听明白怎么回事。这个时候你就更有基础，节省时间先把那些基础书籍与找个PLC自己动手编个小程序，哪怕是一个起保停电路，下载到PLC中运行一下。这个阶段要解决的问题是：结果与理论是否一致，如何巩固专业理论，熟悉PLC外围线路如何不同方法怎么接，plc编程软件程序有多少种不同编程思路，怎么使用实现同一种功能目标。

　　射频同轴电缆绝缘材料采射频同轴电缆系列(9张)用物理发炮聚乙烯隔离铜线导体组成，在里层绝缘材料的外部是另一层环形导体即外导体，外导体采用铜带成型、焊接、扎纹；或是采用铝管结构；或是采用编织结构，然后整个电缆由聚氯乙烯材料的护套包住。

HYA53 / HYAT53 rat bite/buried HYAT53 directly buried cables is mainly used to transmit audio, 15 duct | communication cable | (pipe/overhead) HYAC (overhead) HYAT (waterproof) 0 KHZ and analog signals and 2048 kbit/s and under the following digital signal. Under certain conditions, it can also be used to transmit digital signals over 2048kbit/s. Suitable for overhead or pipeline laying in city, suburb and local area, or directly buried.
　　本厂专业生产电力电缆，YJV,YJVR,RVV质量保证不亏方，外护套质量要求高电力电缆的使用至今已有百余年历史。1879年，美国发明家T.A.在铜棒上包绕黄麻并将其穿入铁管内，然后填充沥青混合物制成电缆。


　　技术特点:1.电缆额定工作电压1000v.；2.导体结构采用多层复绞形式，电缆弯曲性能高；3.绝缘护套材料经改性后，具有高阻燃性，氧指数超过32；4.电缆的长期工作温度可达105℃,从而可使电缆载流量比普通电缆提高1.3倍；5.电缆符合IEC332-3《电缆成束燃烧试验》标准规定的A级水平。

This product is suitable for electronic computers with rated voltage of 500V or below, and cables for automatic connection, which have high requirements for protection. The k-type B low-density polymer with anti-oxidation property is adopted for the insulation of cable ground core. High insulation resistance, good voltage resistance, low dielectric coefficient and low dielectric loss temperature and variation of the medium can not only meet the requirement of transmission performance, but also ensure the service life of the cable. ? The cable is shielded for cross - circuit interference and external. The shielding requirements of cables are respectively adopted according to different conditions: the total shielding of the hinged cable, the total shielding of the hinged cable, and the total shielding of the hinged cable after the hinged cable is shielded. Shielding materials are round copper wire, copper belt, aluminum belt/plastic composite belt three. The insulating property of shielding pair and shielding pair. The transmission of the cable will not be affected if there is potential difference between shielding pair and shielding pair in use.

　　RS-485电缆信号线特性阻抗120欧姆，导体为2*2*24AWG多股镀锡电解铜丝绞合而成，花色绝缘护套宜于安装识别，铝箔/聚酯带总体屏蔽，附加独立多股绞合镀锡铜丝接地导体，工业灰色PVC外护套，外护套颜色可选。

并且加上程序互锁电路，具体如下：首先在2个自保持回路中加入互锁电路——网络1的Q0.1常闭点和网络2的Q0.0常闭点。题意2说按下停止按钮后5秒，才能按启动按钮，所以网络3按下I0.2停止按钮后，M0.0得电自保持，计时器T37计时5s后，将M0.0的自保持回路停掉。并且在网络1和网络2中加M0.0的常闭点，使M0.0得电时网络1和网络2即使按了正转按钮或者反转按钮也不会使Q0.0或Q0.1得电。题意3要求SB1和SB2同时按下，电动机停止转动，并且不起动，同时报L1亮1秒暗1秒不断闪烁。

　　火灾中矿用电缆的主要特性有火灾温度一般在600℃～8000℃，在火灾情况下，导线电缆会很快失去绝缘能力，进而引发短路等次生电气事故，造成更大的损失；导线电缆在规定的允许载流量下有较大的过载能力；短路状态下，导线电缆会在瞬间引起绝缘材料熔化、燃烧，并引燃周围可燃物。

　　 IA-DJVPVP IA-DJYPVP IA-DJYJPVP 本安型、编织分对屏蔽、总屏蔽（铜丝或镀锡丝）。 IA-DJVP2VP2 IA-DJYP2VP2 IA-DJYJP2VP2 本安型、铜塑复合膜分对屏蔽、总屏蔽 。



　　绝缘材料：高密度聚乙烯或聚丙烯，按照全色谱标准标明绝缘线的颜色绝缘线对：把二根不同颜色的绝缘线按不同的节距扭绞成对，并采用规定的色谱组合以便识别线对。缆芯结构：以25对为基本单位，超过25对的电缆按单位组合，每个单位用规定色谱的单位扎带绕扎，以便识别不同的单位。

　　(如计量测试、信号显示、自测遥测、计算机联网、报警等)产品型号：KVV硬芯聚氯乙烯绝缘聚氯乙烯护套控制电缆应用标准：GB9330电缆结构：导体：单根粗铜丝或多根铜丝绝缘：PVC/A型聚氯乙烯绝缘填充物：PP带或无纺布包裹缓冲护套：ST1聚氯乙烯护套颜色：黑色(RAL9005)灰色(RAL7001)额。