MHYV cable, communication cable for mine use, mine cable, communication cable, mine cable for mine use, MHY32 cable, PUYV cable, MHYVP cable, MHYVR cable, flame retardant coal mine in communication cable, cable, mine monitoring cable, PUYVR cable, mine telephone lines, cable for mine monitoring, mine, mine telephone cable, execution: the enterprise standard Q/TX002-2006 is suitable for the coal mine with copper together flame retardant sheath fixed and class communication cable. MHYBV(PUYBV) coal mine with poly-insulated galvanized steel wire braided armor fire retardant poly-chloride sheath communication cable 5-50
2结构和材料的区别耐火电缆的结构和材料与阻燃电缆也不相同。阻燃电缆的基本结构是：(1)绝缘层采用阻燃材料(2)护套及外护层采用阻燃材料；(3)包带和填充采用阻燃材料。而耐火电缆通常是在导体与绝缘层之间再加1个耐火层，所以从理论上讲可以在阻燃电缆的结构中加上耐火层，就形成了既阻燃又耐火的电缆，但实际并没有这个必要。
But cable has low smoke zero halogen resistance to fire and be capable of or delay the flame spread, and, once the fire, it is halogen free, low smoke, and no corrosion features, applicable to such as high-rise buildings, hotels,, subway, nuclear power plants, power plants, mining, petroleum, chemical industry, etc.
Application: this product is suitable for fixed installation in mine, roadway, etc., as the main line of communication and connecting line between the junction box and telephone. HUVV copper core PVC insulated polyvinyl chloride of mine telephone cable laying in mine, general to wring type polyethylene insulated PVC sheathed in communication cable model name CPEV -s ground type polyethylene insulated PVC sheathed local communication cable
常用全塑电缆规格代号的意义一般常用全塑电缆规格代号排在电缆型号的后面，常用数字表示。（2） 市内用市话全塑电缆的结构（H）凡是电缆的芯线绝缘层、缆心包带层和护套，均采用高分子聚合物塑料制成的，就称为全塑电缆。
3)系统调试质量控制。在做系统调试前，技术工程师需要根据系统总体设计、验收标准、合同要求和相关的技术文档编制系统调试方案，经技术审核确认后再组织实施。单体设备、各子系统、综合布线按相应的质量规范和图纸要求进行质量控制，做好调试检测记录，对需要返工应及时整改，整改后再进行调试，直至正常运行。小结现代建筑智能化趋势对智能建筑的弱电工程及设备的自动化管理的要求越来越高，合理的智能化系统设计是满足生活需要的前提，体现了未来智能建筑的功能和水平。
2.绝缘颜色：3.3线芯为一根红色一根蓝色，0.85线芯为一根白色一根绿色，白色线芯外绕包一层铝箔。3.绝缘厚度：3.3线芯绝缘厚度为0.5，绝缘后外径为3.5毫米。0.85线芯绝缘厚度为0.7绝缘后外径为2.5毫米。
Half air insulated cable: this kind of structure is between these two kind of insulation type, its insulation is also made up by air and solid medium, but from one conductor to another conductor need through the solid dielectric layer.
它的含卤量约为含卤阻燃电缆的1/3左右。发烟量也接近于公认的“低烟”水平。根据《电线电缆燃烧试验方法》的规定，采用成束燃烧试验方法考核的阻燃电缆分为A、B、C3类，其中A类电缆试验条件最苛刻，性能较B、C类更优，价格也最贵。
产品特性 1、具有较小的绝缘介质损耗，具有优良的热老化性能； 2、具有较强的耐电压冲击性，能经受高速、频繁变频时的脉冲电压； 3、具有良好的屏蔽性能，其屏蔽传输阻抗在100MHz范围以内不大于1Ω/m； 4、电缆结构紧凑、圆整，用电安全性高，对称的三加三电缆结构设计，具有比四芯电缆更稳定的传输性。
Tianjin Siemens: bus cable; Profibus DP cable.2 core purple cable, aluminum foil and metal wire braided double-layer shielding, solid bare copper conductor, 2 core in pairs, red and green core wire, green PVC outer sheath, purple appearance. Profibus DP cable adopts solid bare copper conductor as core wire, thickened aluminum foil and encrypted bare metal wire braided layer, good shielding effect, purple PVC outer sheath. Good transmission performance. ? 6xv1830-0eh10 L2 cable 2-core shielding (PROFIBUS bus bus bus cable) tianjin Siemens (original 6xv1830-0ah10 has been upgraded to 6xv1830-0eh10)? VDE 0472; Class B test (IEC332.1). With the rice logo, divided into 100 meters, 200 meters, 500 meters, 1000 meters wooden wheel packaging. Working parameters: single wire transmission large specification: 1000m, with repeater can reach 10000m
4.屏蔽通信电缆工作电容：平均值52±2nF/km5.屏蔽通信电缆远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km。HYAT实心绝缘填充型电缆用途：实心绝缘填充型电缆适用于本地电信网的城市与乡镇电信线路，也适用于接入公用网的专用网线路。
比较指令CMP1).16位运算(CMP、CMPP)对比较值S1和比较源S2的内容进行比较，根据其结果(小、一致、大)，使D+D+2其中一个为ON。源数据SS2，作为BIN(二进制)的值进行处理。按代数形式进行大小的比较。:-10＜22).32位运算(DCMP、DCMPP)对比较值[S1+1,S1]和比较源[S2+1,S2]的内容进行比较，根据其结果(小，一致，大)，使D+D+2其中一个为ON。
• communication cables for transmitting incoming signals; Often laid underground or overhead.
3．成品电缆经受交流50HZ3.5KV/5min电压试验不击穿。本质安全防爆测温系统用补偿导线或电缆采用低电容、低电感材料结构，具有防爆安全性能，适用于有爆炸危险的环境下作防爆热电偶冷短与防爆测温仪表连接，形成本安热电偶测温系统。