6、有屏遮结构的软电缆，应不小于电缆外径的6倍。HYAC_索道电缆吊线采用加粗刚纹线的方法把电缆的拉力增加3吨以上，还可以把RVVP电源线加入电缆中做成复合电缆，经济实用，安装敷设方便。在-30~C-60~C的环境条件下，自承式电缆的机械和电气性能保持不变。
而且电缆的抗干扰性能高、电气性能稳定。保证了传输信号参数的准确性和控制系统的安全运行。阻燃变频电缆产品用途阻燃变频电缆主要用于变频电源和变频电机之间,连接用的电缆,以及额定电压1KV及以下的,输配电线路中,作输送电能用.尤其适用于造纸、冶金、金属加工、矿山、铁路和食品加工等行业。
注：可根据用户要求生产（ZR）阻燃型、（IA）本安型及耐高温型计算机电缆。YJV－PVLV－PYJLV－P聚氯乙烯(交联聚乙烯)绝缘金属屏蔽聚氯乙烯护套电力电缆。YJLV22－P聚氯乙烯(交联聚乙烯)绝缘金属屏蔽钢带铠装聚氯乙烯护套电力电缆。
根据需要可制造交联聚乙烯类绝缘0.6/1kv的控制电缆以及阻燃（ZR）、NHYJV电缆NHYJV耐火电缆 YJV电缆全称交联聚乙烯绝缘聚氯乙烯护套电力电缆，适用于室内、电缆沟、管道、隧道等，主要用于电力的传输，是最为常用的电力电缆种类之一。
2.屏蔽通信电缆绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.屏蔽通信电缆绝缘电阻：每根芯线与其余线芯接地，HYA电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。
进制，FX系列可编程控制器中，输入继电器、输出继电器的软元件编号都是以8进制数分配的，由于在8进制数中，不存在[8,9]所以按[0～10～1…70～7100～107]上升排列。10进制，辅助继电器(M)、定时器(T)、计数器、状态(S)软元件编号（其他牌子的PLC的编号方式有12进制等）,应用指令的操作数中的数值指定和指令动作的指定。16进制，应用指令的操作数中的数值指定和指令动作的指定，通常在变频器的通讯地址、命令码表示。
1. Mine control cable execution: mt818-1999? 2. Mine flame retardant control cables: this product is applicable to ac rated voltage u0/u of 450/750v. And the following control and control circuits and the protection lines and the connection lines of the electrical instruments in the distribution equipment. ? 3. Model specifications and scope of mine control cables:? Model of control cable for mine? Specification range? Using MKVV MKVVP, MKVVP2? 0.5 - was 10, 2-61 core? Suitable for weak current control or strong electromagnetic field area mkvvvv22, mkvvvvv20? 0.5 - was 10, 4-61 core? MKVV32, MKVV30? 0.5 - was 10, 7-61 core? MKVVR? 0.5-6 was, 2-61 core? MKVVRP? Was 0.5-4, 2-61 core? MKVVP22 MKVVP2-22? 1.5 - was 10, 4-61 core? MKVVP2-22-1? 1.5 - was 10, 4-61 core? Mainly used in 500KV substation and power plant distribution device and high electromagnetic field area mkvv-1, mkvvvvv22-1? 0.5 - was 10, 2-61 core? 4, using features: coal mine with control cable conductor long-term allowed working temperature is 70 ℃, the cable temperature under installation should not below 0 ℃. Permissible bending radius of control cables used in coal mines: for cables with armored or copper band shielding structures, the bending radius should not be less than 12 times of the outer diameter of the cables. For soft cable with shield layer structure, it should be no less than 6 times the outer diameter of the cable. The cable without armor layer should not be less than 6 times the outer diameter of the cable. ?
The low-smoke halogen free cable is produced by the company in accordance with the French RCCE and NF series standards, GB/T18380, GB/T19216, GB/T17651, GB/T17650 and international standards.
Product introduction - plastic insulated control cable | | KVV control cable KVVR control cable | | KVVP control cable shielding control cable KVVP | | KVVRP shielding control cable KVVP2 control cable | | KVVP2-22 control cable KVV22 sheathed control cable | control cable KVV | control cable KVVR | control cable KVVP | control cable KVVRP | control cable KVV22 product details: plastic insulated control cable: GB9330-88 scope of application: This product is fit for ac rated voltage up to and including 450/750 control, monitoring circuit and protection circuit using features: 1, the conductor long-term allowed working temperature is 70 ℃. 2, when laying environment temperature 0 ℃ or higher. 3. Minimum bending radius: 4. For unarmored cable, it shall be no less than 6 times the outer diameter of the cable. 5. The cable with armor or copper shield shall not be less than 12 times the outer diameter of the cable. 6. The soft cable with screen shielding structure shall not be less than 6 times the outer diameter of the cable.
自承式全塑电缆（HYAC）：自承式全塑电缆有同心式结构和葫芦型结构两种，常用的HYAC型自承式全塑电缆为葫芦型结构。导线：退火裸铜线，直径为、0.4、0.5、0.6、0.7、0.8、0.9；按照全色谱标准标明绝缘线的颜色。
绝缘1绝缘应采用符合规定的高密度聚乙烯。2绝缘线芯采用颜色识别标志,绝缘颜色识别应均匀,并采用下列颜色:星绞:白、蓝、红、绿单元线组星绞组绝缘线芯按白、蓝、红、绿顺时针排列。在四线组外扎一标识扎带，扎带颜色：红、绿、白。
AVVR型300/300V铜芯聚氯乙烯绝缘聚氯乙烯护套安装用软电缆。KVVP2聚氯乙烯绝缘，聚氯乙烯护套铜带绕包屏蔽控制电缆同上。KVV22聚氯乙烯绝缘，聚氯乙烯护套内钢带铠装控制电线敷设在室内、电缆沟中、管道内及地下，能承受较大的机械外力使用。
单从外观，我们是无法区分PLC输出的类型的。一般是从型号上区分，PLC的型号上一般都有表示输出特性的字母。R是英文Relay的缩写，表示继电器输出，可接交直流负载T是英文Transistor的缩写，表示晶体管输出，只能接直流负载S是英文Silicon的缩写，表示晶闸管输出，只能接交流负载比如图一中PLC的型号是K7M-DRT20U,字母RT就是表示输出的字母。它表示此PLC是继电器和晶体管混合输出的。
氟塑料绝缘和护套耐高温控制电缆采用聚全氟乙丙稀或改性聚四氟乙烯材料，具有比普通控制电缆更高的耐热等级。DJFVP：F46绝缘，聚氯乙烯护套铜丝总屏蔽高温防腐耐油计算机电缆。DJFPV：F46绝缘，聚氯乙烯护套铜丝分屏蔽高温防腐耐油计算机电缆。
理论上RS485的传输距离能达到1200米，但实际应用中传输距离要小于1200米，具体长度受周围的环境影响。一般推荐如下：普通双绞屏蔽型电缆STP-120Ω（forRS485&CAN）onepair20AWG，电缆外径7.7mm左右。
四、主要技术指标：性能项目单位技术指标20℃时绝缘电阻≥MΩ˙km聚氯乙烯25聚乙烯类5000(阻燃型℃时导体直流电阻Ω/km截面mm20.50.751.01.52.5单根36.024.518.112.17.41R类39.026.019.。
Plastic insulated control cable: GB9330-88 scope of application: this product is fit for ac rated voltage up to and including 450/750 control, monitoring circuit and protection circuit using features: 1, the conductor long-term allowed working temperature is 70 ℃. 2, when laying environment temperature 0 ℃ or higher. 3. Minimum bending radius: 4. For unarmored cable, it shall be no less than 6 times the outer diameter of the cable. 5. The cable with armor or copper shield shall not be less than 12 times the outer diameter of the cable. 6. The soft cable with screen shielding structure shall not be less than 6 times the outer diameter of the cable.