TRVV flexible cable for connection and control, widely used in dry or damp indoor, reciprocating freely bending and moving the chain system without forced tension. Such as machine tool processing equipment, logistics delivery system, port machinery, complete equipment installation engineering. Product features: according to customer requirements, color core or coding core. High quality PVC mix is adopted to reduce the requirement of cable outer diameter for installation space. The designed cycle bending life is 5 million times, and the actual use has exceeded 6 million times. Cable structure: conductor: using multi-strand fine ground and other fine twisted into a bundle conductor oxygen-free copper wire, conform to DIN VDE 0295 grade 6 insulation: high quality PVC mixture color: color line core or coding line core 3 core + yellow or green conductor sheathed: high quality PVC mixture color: black, grey, orange electrical characteristics: rated voltage U0 / U < 0.5 was 300/300 V p o. 5 was 300/500 V test voltage: 3000 V U meet DIN VDE 0281 part 2 temperature range: ℃ mobile installation: fixed installation: - 5 ℃ ~ + 70 ℃ and 30 ℃ ~ + 70 ℃ when continuous movement, the minimum bending radius: 7.5 x cable diameter
USES of RVVP shielding cable: this product is suitable for ac rated voltage 300/300v and below electrical, instrumentation, electronic equipment and automation equipment.
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.
实验规定试样保持垂直，用试验用的喷灯燃烧（30，000TU/Hr）15秒钟，停止15秒钟，反复5次。
合格标准为余火焰不可超过60秒钟，试样不可烧损25%以上，垫在底部的外科用棉不可被落下物引燃。
UL1581-VW-1和IEC类似，只是燃烧的时间不同。
性阻抗为100Ω的双绞屏蔽电缆STP-100Ω(forFF&PROFIBUS-PA)onepair18AWG则应用于FF、PROFIBUS-PA总线，常用18AWG导体。
485总线由于其布线简单，稳定可靠从而广泛的应用于视频监控，门禁对讲，楼宇报警等各个领域中，在485总线布线过程中由于有很多不完全准确的概念导致出现很多问题。
在t2-t3时间内，A相电位最高，而C相电位最低，故VDVD6处于正向导通。
同理，交流发动机的输出电压可视为C绕组之间的线电压。
以此类推，周而复始，在负载上便可获得一个比较平稳的直流脉动电压。
2）九管交流发电机的整流原理九管交流发电机的特点是除了常用的6个整流二极管外，又增加了3个功率较小的二极管。
3个功率较小的二极管用来供给交流发电机磁场电流，故又称之为磁场二极管。
采用磁场二极管后，输出端连接充电指示灯，即可指示发电机工作情况的好坏。
另供：ZR-RVV、RVVP、RVP、ZR-RVS、多股阻燃电源线ZA-RVV RVVZZRRVVZRVVR多股阻燃软电缆3X10+13X16+1 3X25+1 3X35+13X50+1 3X70+1 3X95+1 3X120 +1 3X240 +1 3X150 3X185+1 。
适用于交流额定电压0.6/1KV及以下的行车、台车、传输机械等移动电器用动力传输线及控制、照明、通讯线路，本产品已广泛应用于冶金、电力、船舶、港口等行业。
执行标准：GB。
＊最小弯曲半径：无铠装电缆应不小于电缆外径6倍；有铠装电缆应不小于电缆外径12倍3、用途：＊适用于交流额定电压uo/u为450/750v及以下的控制，监控回路及保护线路。
IA-DJVVP2IA-DJYVP2IA-DJYJVP2本安型、铜塑复合膜总屏蔽。
IA-DJVVP3IA-DJYVP3IA-DJYJVP3本安型、铝塑复合膜总屏蔽。
IA-DJVPVPIA-DJYPVPIA-DJYJPVP本安型、编织分对屏蔽、总屏蔽（铜丝或镀锡丝）。
Self-supporting full-plastic cable (HYAC) : self-supporting full-plastic cable has two kinds of concentric structure and calabash structure. The commonly used HYAC full-plastic cable is calabash structure. Wire: annealed bare copper wire with diameter of, 0.4, 0.5, 0.6, 0.7, 0.8 and 0.9; Color the insulation line according to the full chromatographic standard. A single insulated wire is twisted in pairs at different pitch to minimize crosstalk and a specified chromatographic combination is used to identify pairs of wires. Cable core: the cable core structure is based on 25 pairs of cables. More than 25 pairs of cables are assembled according to the unit. Each unit is wrapped with the unit of specified chromatogram to identify different units. More than 100 pairs of cables plus 1% of the reserve pair. Shielding: the shielding layer is made of corrugated metal tape which is wrapped vertically on the outside of the cable core wrap belt and firmly bonded on both sides. The metal strip of the shielding layer is coated with plastic film to facilitate bonding with the sheath to prevent corrosion of the shielding layer. Protective sleeve: protective sleeve is black low density polyethylene, can use double protective sleeve according to the need.
ZR-BPGVFP2硅橡胶绝缘丁腈护套铜带绕包屏蔽耐高温变频电力电缆。
ZR-BPGVFPP2硅橡胶绝缘丁腈护套铜丝编织铜带绕包屏蔽耐高温变频电力电缆。
ZR-BPGVFP3硅橡胶绝缘丁腈护套铝聚酯复合膜绕包屏蔽耐高温变频电力电缆。
VV22铜芯聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆。
VVR22铜芯聚氯乙烯绝缘钢带铠装聚氯乙烯护套软电力电缆。
VLV22铝芯聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆。
VV32铜芯聚氯乙烯绝缘钢丝铠装聚氯乙烯护套电力电缆。
任何复杂的电路图都是由基本的简单的电路图构成的，只增加了更全备的保护或者设计功能更为复杂点，原理都是相通的。
想要快速的看懂复杂的电路图，你可以参考以下方法：电工专业知识积累。
1，至少要清楚电路的原理和电路的基本构成，特别是电气拖动这一块。
2，熟练掌握电气拖动电路组成元器件的功能和作用。
：交流接触器通电动作后，本身触点会发生什么变化，相应的电路会发生什么样的动态反应。
3，基础电路图积累。
任何复杂的电路图都是由基本电路图构成的，你可以掌握基本的常用的电路，：电机正反转控制电路，电机星三角降压启动电路，电机双速调节电路等等。
在一定条件下，也可用于传输2048kbit/s及以上的数字信号。
HYA、HYAT用于架空、管道敷设。
HYA53、HYA23、HYAT53、HYAT23型适用于直埋。
GHYAT、GHYAT53高速公路用通信电缆是为高速公路紧急电话系统而设计。
国标GB4706.1-1992/1998规定的电线负载电流值（部分）1平方铜芯线允许长期负载电流为:6A---8A1.5平方铜芯线允许长期负载电流为:8A---15A2.5平方铜芯线允许长期负载电流为:16A---25A4平方铜芯线允许长期负载电流为:25A---32A6平方铜芯线允许长期负载电流为。
3：氟塑料高温补偿导线补偿电缆KX-GA-VVP聚氯乙烯绝缘和护套铜丝编织总屏蔽精密级K分度号热电偶用补偿电缆KX-GA-VVRP聚氯乙烯绝缘和护套铜丝编织总屏蔽精密级K分度号热电偶用补偿软电缆KX-GA-VPVP聚氯乙烯绝缘和护套铜丝编织分屏加总屏蔽精密级K分度号热电偶用补偿电缆KX-GA-。
1使用特性1.1电缆的使用环境温度为-40℃~+60℃。
1.2电缆导体长期工作温度应不超过+70℃。
1.3电缆敷设环境温度：聚氯乙烯外护套电缆应不低于0℃;聚乙烯外护套电缆应不低于-20℃。
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。