电缆地线芯绝缘采用具有抗氧化性能的K型B类低密度聚乙烯。聚乙烯的绝缘电阻高，耐电压好，介电系数小和介质损耗温度和变频率的影响也小，不但能满足传输性能的要求，而且能确保电缆的使用寿命。为了减少回路间的相互串扰和外部干扰，电缆采用屏蔽结构。
生产范围：型号额定电压导体标称截面0.50.751.01.52.54610芯数KVV450/750V或OR0.6/1kv-2-612-142-10-2-612-142-10-2-612-142-10-7-612-612-142-10-19-6。
可采用任何一种方式敷设，更适于岩石地区的敷设。通信电缆型号HYAHYACHYATHPVVHYVHJVVHYY。配线电缆型号HPVVZR-HPVV。局用电缆型号HJVVHJVVPZR-HJVVZR-HJVVP。
24 to cable chromatography: Hester prynne, white orange, white, green, white, brown, white, red, blue, red, orange, red, green, red brown, red, grey, dark blue, black and orange, dark green, dark brown, black ash, champak, yellow orange, yellow, green, yellow, brown, yellow, grey, purple, blue, purple, orange, purple, green, purple brown
试验规定，成束3.5m长的电缆试样用铁丝固定在梯形测试架上，试样数量按不同分类所要求的非金属物料决定。试样垂直挂在燃烧炉背壁上，空气通过底板上的进气口引入燃烧炉。丙烷平面燃烧器以750℃的火焰和试样接触，试样在强制吹风（气流排放5m3/分钟，风速0.9m/秒）的情况下，必须在垂直燃烧20分钟内燃不起来，电缆在火焰蔓延2.5米以内自行熄灭。
电阻率：又称电阻系数。是衡量物体导电性能好坏的一个物理量,用字母ρ表示,单位为Ωm。其数值是指导体的长度为1m、截面积为1mm2的均匀导体在温度为20℃时所具有的电阻值,即为该导体的电阻率。8，电阻的温度系数：表示物质的电阻率随温度而变化的物理量,其数值等于温度每升高1℃时,电阻率的变化量与原来的电阻率的比值,用字母d表示,单位为1/℃。9，电导：物体传导电流的本领叫电导。电阻值的倒数就是电导,用字母G表示,单位为S(西门子)。
产品型号及名称 ZR-DJYPV计算机电缆：聚乙烯绝缘铜丝编织分屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-DJYVP计算机电缆：聚乙烯绝缘铜丝编织总屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-DJYPVP计算机电缆：聚乙烯绝缘铜丝编织分屏蔽、总屏蔽聚氯乙烯护套阻燃型电子计算机用电缆 ZR-D。
四、基本型号及名称型号产品名称NH-KVV阻燃聚氯乙烯绝缘和护套耐火控制电缆NH-KVVP阻燃聚氯乙烯绝缘和护套铜丝编织屏蔽耐火控制电缆NH-KVVP2阻燃聚氯乙烯绝缘和护套铜带绕包屏蔽耐火控制电缆NH-KFF氟塑料绝缘和护套耐火控制电缆NH-KFFP氟塑料绝缘和护套铜丝编织屏蔽耐火控制。
（SYV视频电缆、RVVP屏蔽电缆、RVV护套电缆、AVVR信号电缆、SYV射频、）BV塑铜线、BVR塑铜软线、RVSP485双绞屏蔽电缆、RVS双绞线、RVB平行线、RV软线、KVVP控制屏蔽电缆、KVVR控制软电缆、KVV控制电缆、HYA通信电缆、VV电力电缆,RVVP屏蔽线（1～30芯）RVV。
电缆导体的长期工作温度应不超过70℃。铝护套电缆具有良好的屏蔽性能，综合护层有一定的屏蔽性能，可用于铁路电气化区段的干线或强电干扰地区。电缆的弯曲半径不小于外径的15－20倍。5.信号电缆规格标准有：4、6、8、9、12、14、16、19、21、24、28、30、33、37、42、44、48、52、56、61。
This product is suitable for electronic computers with rated voltage of 500V and cables with high requirement of anti-interference. Type K B low density polyethylene with anti-oxidation property is adopted for insulation of cable core. Polyethylene high insulation resistance, good resistance to voltage, small dielectric coefficient and temperature and the influence of variable frequency dielectric loss is small, can not only meet the requirements of transmission performance, and can ensure the service life of the cable. In order to reduce crosstalk and external interference between circuits, the cable adopts shielding structure. The shielding requirements of cables are respectively adopted according to different situations, such as the method of shielding the hinged combination, the method of shielding the hinged combination, and the method of shielding the hinged combination after the hinged combination. Shielding materials are round copper wire, copper belt, aluminum belt/plastic composite belt three. Shielding pair and shielding pair have good insulation performance. If there is potential difference between shielding pair and shielding pair, the signal transmission quality will not be affected.
通信设备电源线产品标准：YD/T产品型号：ZA-RVV（ZRRVVZRVVRRVVZ）通信电源用阻燃软电缆ZA-RVV22（ZRRVV22ZRVVR22RVVZ22）通信电源用阻燃钢带铠装软电缆本产品适用于架空、管道、室内电缆沟、地下直埋。
PLC硬件部分的设置如下：因为采集的是电压输入（0-5V），所以要处于OFF状态，这里要结合CJ1W-MAD42，可以去欧姆龙官网进行下载。下面这部分是为了设置欧姆龙plc中硬件输入的电压范围（0-10V）分辨率是4000，分辨率就是模拟量对应的数值量。上图中，这是在编程软件中设置通道模拟量的输入范围，而我这个实际在程序中也进行了设置，后来我和欧姆龙官网的技术人员沟通过，他们说只需要在这个地方进行设置就好了，你们以后可以就这样操作，不需要在程序中进行赋值了。
矿用控制电缆电气性能：1、额定电压450/750v2、电缆导体的长度允许工作温度为70摄氏度3、电缆的敷设温度应不低于0摄氏度，推荐的允许弯曲半径；4、无铠装层的电缆，应不小于电缆外径的6倍5、有铠装或铜带屏蔽结构的电缆，应不小于电缆外径的12倍。
Combination cable, control cable, communication cable, coaxial cable of the combined, messenger combination cable SYV75-5 + RVV RVVP + in order to adapt to the needs of high-tech and various kinds of scientific research, and organized scientific and technological personnel and use the unit joint efforts, the combination of a series of cables. The products have compact structure, performance and convenient installation, and are widely used in communication, navigation, electronic countermeasures, early warning, sea training and exploration, and comprehensive cables for various equipment. According to the requirements of the user, multiple lines, power lines, shielding lines, coaxial radio frequency cables, etc. can be combined into a combined cable with total shielding. In addition, our factory has developed a self-supporting combined cable on the basis of syv75-5 +RVV+RVVP cable, and added a self-supporting steel wire to the cable, which greatly enhances the cable tension. Video line syv-75-5, syv-75-3, power supply line RVV, shielding line RVVP supply video line syv-75-5, syv-75-3, power supply line RVV, shielding line RVVP this company solemnly declares: 1. 2. Product tracking service within two years and keep records in the archives for 20 years. 3. Due to product problems, our company will guarantee, refund, replacement and customer requirements.