Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion.
该电缆主要用于交流或直流300V及以下的工作系统，在500V及以下时能正常工作。HYV——铜心实心聚乙烯绝缘，聚氯乙烯护套，绕包铝箔带，市话通信电缆。HPVV——铜心聚氯乙烯绝缘，聚氯乙烯护套铝箔绕包带，市话通信电缆。
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。
Any kind of laying can be adopted, which is more suitable for laying in rock area. HYA23 double metal clad double sheath communication cable HYAT series oil filled telecommunication cable (HYAT HYAT23, HYAT53: HYAT23 100 x2x0. Details of the 4: multi-cores iron cable HYAT23 HYA23 200 x2x0. 4 big logarithmic armoured cable HYAT23 logarithmic galvanized steel cable.
Computer cable USES: this product is widely used in electricity, metallurgy, petroleum, chemical industry, textile and other departments of detection and control in a computer system or automated devices, as well as general industrial computer. Features: rated voltage UO/U is 300/500v. Allowed working temperature does not exceed 70 ℃, laying temperature not lower than 0 ℃, allowed bending radius should not less than 12 times of cable outer structure of soft cable should be no less than eight times outside the cable, copper tape screened cable shall be less than 15 times of cable diameter. Product code and significance: dj-electronic computer cable y-polyethylene v-polyvinyl chloride R- represents multiple strands of soft core p-copper wire shielding p2-copper belt shielding P3 aluminum plastic compound
地阻仪是一种手持式的接地测量仪。仪器配备有测试所必需的附件。仪表配有两个钳口：电压钳和电流钳。电压钳在被测回路中激励出一个感应电势E，并在被测回路产生电流I，仪表通过电流钳可以测得I值。通过对I的测量，由欧姆定律：R=E/I，即可求得R的值。测试方法如下：在E－E两个接线柱测量接地电阻时，用镀铬铜板短接，并接在随仪表配来的5m长纯铜导线上，导线的另一端接在待测的接地体测试点上。测量屏蔽体电阻时，应松开镀铬铜板，一个E接线柱接接地体，另一个E接线柱接屏蔽。
注意：电线电缆安装应熟悉电线电缆性能的安装人员或专职技术人员担任，如仍有不清事项，请向相关技术部门或我厂技术部咨询。射频电缆适用于无线电通讯和采用类似技术的电子装置中使用的实心聚乙烯绝缘射频电缆。。4.工作电容：平均值52±2nF/km5.远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km。
Some models of power cables: zr-yjv zr-yjlv zr-yjy zr-yjly zr-yjly zr-yjv22 zr-yjlv22 zr-yjv23 zr-yjv23 zr-yjlv23zr-yjlv3zr-yjv33 zr-yjlv32 zr-yjlv32 zr-yjlv33
Product introduction?
吊线和电缆用同一外护层，经济实用，安装敷设方便。在一30~C一60~C的环境条件下，电缆的机械和电气性能保持不变。结构：导线：退火裸铜线，铜线直径为，0．4，0．50，0．60，0．70，0．80，0．90mm。
MHYVP矿用聚乙烯绝缘、阻燃聚氯乙烯护套、铜丝编织屏蔽信号电缆1-101/1.38用于井下干扰较大的场合。MHYV31矿用聚乙烯绝缘、阻燃聚氯乙烯护套、镀锌钢丝编织铠装信号电缆1-201/1.00用于井下平巷作主信号干线电缆。
一般推荐如下： 普通双绞屏蔽型电缆 STP-120Ω（for RS485 CAN） one pair 20 AWG ，蓝色护套，电缆外径7.7mm左右。适用于室内、管道及一般工业环境。使用时，屏蔽层一端接地。
S7-300/400的功能与S7-200的子程序基本上相同。它们均有输入、输出参数和临时变量，功能的局部数据中的返回值实际上属于输出参数。它们没有专用的存储区，功能执行结束后，不再保存临时变量中的数据可以用全局变量来保存那些在功能执行结束后需要保存的数据，但是会影响到功能的可移植性。功能块是用户编写的有自己专用的存储区（即背景数据块）的程序块，功能块的输入、输出参数和静态变量存放在指定的背景数据可以用全局变量来保存那些在功能执行结束后需要保存的数据，但是会影响到功能的可移植性。
This product is used for household appliances, electric tools and various kinds of mobile appliances with rated ac voltage of 450/750v or less. (1) rated voltage Uo/U of YZ type is 300/500v, and YC type is 450/750v. (2) the wire core long-term allowed working temperature does not exceed 65 ℃. (3) w-type cable has weather resistance and certain oil resistance performance, which is suitable for use outdoors or in contact with oil pollution. (4) ZR cable has flame retardant performance.
阻燃电缆特性型号铜芯铝芯名称用途ZA-YJV/ZB-YJV/ZC-YJVZA-YJLV/ZB-YJLV/ZC-YJLV交联聚乙烯绝缘聚氯乙烯护套A(B、C)类阻燃电力电缆可敷设在对阻燃有要求的室内、隧道及管道中。
Our products are widely used in all major coal mine systems and coal mine monitoring systems. Sales to coal companies and mining groups throughout the country; 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, big logarithmic communication cable, computer cable, power cord of communication equipment and railway signal cable, airport with flare path, various documents are complete, reliable quality!!!!!
Some models of power cables: zr-yjv zr-yjlv zr-yjy zr-yjly zr-yjly zr-yjv22 zr-yjlv22 zr-yjv23 zr-yjv23 zr-yjlv23zr-yjlv3zr-yjv33 zr-yjlv32 zr-yjlv32 zr-yjlv33