1, code DJ - (series code) electronic computer shielded cable Y - (insulation code) high-pressure polyethylene F - (insulation code) fluoroplastic V - (sheath code) polyvinyl chloride (R - said many strands of soft wire core P - (block code) copper mesh shielding P1 tin plated copper mesh shielding P2 copper tape screened P3 aluminum-plastic composite membrane shielding for example 1:2, product specifications order 7 (14) to 1.0 was computer shielded cable can be represented as: (1) total shielding DJYVP7 * 2 * 1.0mm2 (2) partial shielding multiple soft lines DJYPVR7 * 2 * 1.0mm2 (3) total shielding DJYPVP7 * 2 * 2 * 1
Levels have pressurization - CMP (air/air duct, sodium experiment Plenum Flame/Steiner Tunnel) this is the requirements of the Cable UL fire (Plenum Cable), applicable for UL910, experimental regulations at the levels of device duct laying on multiple samples, with a 87.9 KW gas Bunsen burner (300000 BTU/Hr) for 20 minutes. Qualified for flame does not extend 5 feet away from gas lamp flame front.
HBYV、HBV-J、HBZR、HBZR-J、HBYV-J、HBYY、HBVV、HBVV-J、HPV、HBV产品执行标准：参考邮电局YD/T630-93标准.型号：HBYV、HBV-J、HBZR、HBZR-J、HBYV-J、HBYY、HBVV、HBVV-J、HPV、HBV型式代号:HB-室内线代号V。
绝缘电阻：>200M欧姆×KM。使用温度：-30~+70℃。弯曲半径：15×电缆外径。阻燃特性：IEC60332.1。参考标准：GB5023、IEC60227、HDVDE21.5S3。包装规格：100m、500m、1000m。
使用特性：1、额定电压：交流Uo/U；450/750V2、工作温度：序号1～4-60～+200℃序号5～14-15～+105℃3、绝缘电阻（20℃）不低于50MΩ•km4、导体线芯直流电阻（20℃）符合GB规定5、无铠装电缆允许弯曲半径不小于电缆外径的6倍，铠装电缆允许弯曲半径不小于电缆外径的12倍。
如发现接班人员有病，酒醉或因有思想情绪等不适于工作时，应拒绝交班并报告领导。未经正式交接手续及接班人员未按时到达时，交班人员不准离开工作岗位，同时报告领导处理。交接班过程中发生事故或有重要操作时，禁止进行交接，应由交班人员进行处理后再交班。值班人员应交接下列事项：当时系统的运行方式，变动部分及事故处理情况。设备运行情况，所发现的设备缺陷和备用设备的情况。设备和线路正在检修或试验的工作情况。
And bear large mechanical external force fixed occasions
This product is suitable for communication lines in urban, suburban and local areas. Conductive core wire adopts soft copper wire with nominal diameter of 0.4, 0.5, 0.6, 0.7, 0.8 and 0.9mm. Twisted into the single wire insulation after the heart type (10, 20) or the unit type twisted into core (30 to and above), each basic unit of the unit with same color, the basic unit of cable tie color arrangement according to the requirements of the chromatography. On the surface of the cable core, a non-hygroscopic polyester belt or a non-woven cloth belt is used to wrap the cable core and then add the longitudinal package of the moisture-proof metal shield belt. The outer sheath can be made into polyurethane or chlorine sheath. The self-supporting cable is to squeeze the cable core and steel strand parallel to the same "8-character" calabash outer sheath. ?
100对及以上线对的电缆加有1％的预备线对，但最多不超过6对。缆芯内的间隙用石油膏填充。5、缆芯包带：用聚脂薄膜带绕包。6、屏蔽：用轧纹（或不轧纹）金属带，金属带纵包于缆芯包带之外。7、护套：黑色低密度聚乙烯。
特别适用于精密电子装置场所，如智能大厦、计算机中心和航空航天监控中心等。最低环境温度：固定敷设不低于-60℃；聚氯乙烯护套电缆不低于-40℃。2.电缆安装敷设温度应不低于0℃(氟塑料、硅橡胶、丁腈护套电缆不低于-25℃)。
产品标准：(GB/T办公室电话：经理手机：QQ号：微信号：技术部电话：欢迎您来电咨询使用条件1：使用温度（℃):-40～+602:相对温度:40℃时达98%3:安装敷设温度不低如:-15℃4:充许最小弯曲半径:室内不小于5倍,室外10倍结构1:内导体单股或绞合多股2:聚乙烯绝缘3:铜丝编。
Integrated stranded railway signal cable implementation standard GB/ t2476-1993. Railway signal cables are suitable for transmission of railway control signals, audio signals or fixed cables for fixed installation in rated voltage ac 500V or dc 1000V or below. Product name, model, specification and scope: plastic insulation and PVC sheathed railway signal cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway signal communication, fire alarm signal, telegraph and other automatic device systems with rated voltage ac 500V or dc 1000V or below. Polyethylene polythene insulation composite sheath steel tape armoured PVC sheathed railway signal cable PTYA23 PTYA22 PTY23 PTY22 PTYAH23 PZYA23 PZYA22 PZY23 PZY22 0.8 mm (1/1.0 mm) 4-61 core is fit for ac rated voltage 500 v or dc voltage 1000 v and below audio signal transmission and fixed installation of railway signal and group control automation assembly line, is of general automatic transmission railway signal, can also transmit frequency shift automatic block and business phone and other audio signal. 4, using features: cable in - 40 ℃ to + 50 ℃ environment use. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the environment temperature is not lower than 5 ℃, resistance to sheath for - 10 ℃. The bending radius shall not be less than 15 times of the outer diameter of the cable (when laying) and shall be applicable to any horizontal disturbance
可采用吸收电路来控制。开路集电极输出端子连接控制继电器时，可在励磁线圈的两端连接吸收电涌的二极管，。6)控制电路端子上的连接电线用0.75mm及以下规格的屏蔽线或绞合在一起的聚乙烯线。屏蔽线的接线，如下图所示。把一端连接到各自的共用端子(1CM)上，另一端不接。也可在线圈两端并接RC浪涌电压吸收电路，如下图所示。应注意RC浪涌电压吸收电路的接线不能超过20cm。地线的接线1)由于在变频器内有漏电流，为了防止触电，变频器和电机必须接地。
1.4电缆的允许弯曲半径：非铠装电缆应不小于电缆外径的10倍；铠装电缆应不小于电缆外径的15倍。RS232/RS-485通讯电缆信号线适用于EIARS-232/422通讯网络，是楼宇自控、工业控制网络、电力自动化等通讯网络的常用电缆型号。
获得MA标志产品；井筒信号电缆|井下电缆井下电缆MHYA对）MHY对）MKVV芯）获得煤安证的产品：井筒信号电缆MHYV（1-10对）MHYAV（5-100对）MHYA对）MHY对）MHYVP（2-10对）MHYVRP（2-10对）MKVV（2-61芯）MKVV芯）MKV。
The total shielding structure can adopt copper wire and copper band combination shielding, copper wire braid shielding, copper wire braid shielding, copper wire braid shielding, etc. The shielded cable of this structure can resist electromagnetic induction, bad grounding and power line conduction interference, reduce inductance and prevent the induction electromotive force from being too large.
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。