Telephone line -HPV HYV HPVV HVV HVV HVV 4*0.5 4*0.4 4*0.6 4*0.7 4*0.8 4*0.9 4*1.0 4*1.2 4*1.5 HPV HYV HPVV HVV HVV 4*0.5 4*0.4 4*0.4 *0.6 4*0.7 4*0.8 4*0.9 4*1.0 4*1.2 4*1.5 and other series of municipal communication cables: YD/T322-1996 manufacuring hya HYAT duct (widely used in metropolitan area network, in the construction of communication network is given priority to with overhead and pipe installation, main transmission audio signal) HYAT filling type communication cable (used in metropolitan area network, in the construction of communication network is given priority to with pipe installation, have water-blocking effect, without charging protection, main transmission audio signal) HYAC messenger communication cable (used in metropolitan area network communication network construction, aerial installation, construction is convenient, Main transmission audio signal) HYAT53 filling type armoured cable (used in metropolitan area network communication network construction in complex environment, directly buried underground, water resistance, the rat bite, without charging protection, main transmission audio signal) the first branch factory of tianjin cable factory specializing in the production of research and development; Mining signal cables; Communications cables for coal mines; Coal mine control cables; Coal mine signal cables; Mining monitoring cables; Monitoring cables for mining; Telemetry cable for mine; Mine monitoring lines; Mine monitoring line; Mining telephone cables; Mine explosion-proof cable; Mining cables; Mine fire retardant cable; Sensor cable; All the products have the certificate of "coal safety sign" and have complete specifications. The products are widely used in various 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!
DJYPV(R)P22聚乙烯绝缘铜丝编织分屏总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。DJYV(R)P2-22聚乙烯绝缘铜带绕包总屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。DJYP2V(R)22聚乙烯绝缘铜带绕包分屏聚氯乙烯护套钢带铠装计算机用屏蔽(软)电缆。
接地引出线要求采用我镀锡编织铜线，和电缆铜带连接时应用铬铁锡焊，不宜用喷灯封焊，以免烧损绝缘。 ③三相铜带屏蔽应分别与地线相连，注意屏蔽接地线和钢铠接地线应分别引出，相互绝缘，焊接地线的位置应尽量靠下。
Flame-retardant Cables: ibec60332-3 / bs4066-3 flame-retardant grades (BunchedWires or Cables vertical Flame On BunchedWires/Cables) this is a beam cable. According to the test regulations, the 3.5m long cable samples are fixed with iron wire on the trapezoid frame, and the number of samples is determined according to the non-metallic materials required for different classification. 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. At 750 ℃ flame propane plane and the sample, the sample in the compulsory blowing (5 m3 / min air emissions, wind speed 0.9 m/s), must be in vertical combustion is not up to 20 minutes, cable within 2.5 meters flame spread out on its own. IEC60332 is divided into A, B, C and D to evaluate the flame retardant performance.
电缆允许的弯曲半径：对有铠装或铜带屏蔽结构的电缆应不小于电缆外径的12倍。对有屏蔽层结构的软电缆，应不小于电缆外径的6倍。对无铠装层的电缆应不小于电缆外径的6倍。本产品是阻燃类产品。二、执行标准 MT818.《煤矿用阻燃通信电缆》及企业标准Q/JG。
1在高压带电区域内部分停电工作时，人体与带电部分，应保持规定的安全距离，作业时并必须有人监护。变配电室内、外高压部分及线路，停电工作时：1切断有关电源，操作手柄应上锁或挂标示牌。2验电时应戴绝缘手套，按电压等级使用验电器，在设备两侧各相或线路各相分别验电。3验明设备或线路确认无电后，即将检修设备或线路做短路接地。4装设接地线，应由两人进行，先接接地端，后接导体端，拆除时顺序相反。拆、接时均应穿戴绝缘防护用品。
ZR-KVVP2阻燃聚氯乙烯绝缘，阻燃聚氯乙烯护套铜带绕包屏蔽控制电缆同上。ZR-KVV22阻燃聚氯乙烯绝缘，阻燃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。
ZR-KVV32阻燃聚氯乙烯绝缘，细钢丝铠装阻燃聚氯乙烯护套控制电缆敷设在室内、电缆沟中、管道、竖井内及地下，能承受一定的拉力作用。注：根据用户需要可生产阻燃性（ZR）和无卤阻燃型（ZRA）控制电缆。
目前，常用的有两类：50Ω和75Ω的射频同轴电缆。特性阻抗75Ω射频同轴电缆常用于，故称为CATV电缆，传输带宽可达1GHz，目前常用CATV电缆的传输带宽为750MHz。（2）对称射频电缆对称射频电缆回路其电磁场是开放型的，由于在高频下有辐射电磁能，因而使衰减增大，并导致屏蔽性能差，再加上大气条件的影响，通常较少采用。
Call communication cable product features low cable of rated voltage: the minimum working temperature is not lower than 500 v low cable - 40 ℃. The highest long-term low cable allows working temperature: polyethylene insulation is not higher than 70 ℃; Cross-linked polyethylene insulation is not higher than 90 ℃. Low cable temperature: the minimum 0 ℃. Preheat if below minimum laying temperature. 's main electric cable performance: (l) 20 ℃ conductor dc resistance: 0.75 was no more than 26 / km; 2.0 was no greater than 9.8 Ω/km (2) 20 ℃ when the cable insulation resistance: 0.75 was not less than 300 m Ω • km; 2. Om Ω • Omm2 not small to 10 km. (3) voltage test between cable core and cable core, and between wire core and shield through ac 2500V/5min. (4) the working capacitance of the cable set shall not exceed 100pF/m when the test frequency is 1kHz. (5) the capacitance imbalance of the cable set shall not be greater than 250pF when the test frequency is lkHz and the cable length is 250Im. The combustion characteristics of the ending cable
电线电缆工业界中的聚氯乙烯(PVC)即是其中的一例，至今仍在护套和绝缘料中承担着主要角色。随着社会的进步和科学技术的飞速发展，PVC内在的弱点(燃烧时释放的大量烟雾，严重的腐蚀性气体和有毒气体)益发明显。
•ZR-YJV即阻燃YJV，全称是阻燃交联聚乙烯绝缘聚氯乙烯护套电力电缆阻燃电缆分类根据电缆阻燃材料的不同，阻燃电缆分为含卤阻燃电缆及无卤低烟阻燃电缆两大类。其中含卤阻燃电缆的绝缘层、护套、外护层以及辅助材料（包带及填充）全部或部分采用含卤的聚乙烯（PVC）阻燃材料，因而具有良好的阻燃特性。
STEP7调用FC105，FC106进行模拟量转换编程2.1FC105/FC106在哪里在编程界面下，在Programelements中的Libraries下的StandardLibrary下的TI-S7ConvertingBlocks中就可以找到，见下图：模拟量模拟量注意：请不要使用S5-S7ConvertingBlocks下的FC105,FC106，该路径下的功能是用于S5输入输出模板的，在S7输入输出模板上无法使用。
TRVV柔性电缆RVVT、RVVTP耐弯曲电缆RVVPTTRVV柔性电缆RVVT、RVVTP耐弯曲电缆RVVPT的详细介绍TRVV柔性电缆RVVT、RVVTP耐弯曲电缆RVVPT型号：TRVV连接与控制用柔性电缆，广泛应用于干燥或潮湿的室内，往复自由弯曲移动无强制拉力的拖链系统中。
This company produces the type refractory power cables for rated voltage 0.6/1 kv copper core cable, can also produce low smoke zero halogen fire-resistant power cable, high flame retardant fire-resistant power cable oxygen insulation layer, the fire-resistant performance in line with the GB/T12666.6 cable fire resistance test method. Therefore, the overall performance of refractory series power cables is good and reliable. The water resistance performance of fireproof cable conforms to iec 502-2.