Cable conductor long term allowed working temperature to: fluorine plastic outer sheath is 200 ℃, PVC outer sheath is 105 ℃, silicon rubber outer sheath is 180 ℃.
The cross section of the control cable is generally no more than 10 square meters, and the power cable is mainly used to transport power, which is generally large. Due to the above all when it comes to the reason, the specifications of the power cable can generally larger, to 500 square feet (normal manufacturer can produce range), again big cross section of the general factory is relatively less, you can do and control cable section generally small, generally not more than 10 square, tell from some cable, power cable according to the demand of power grid more generally for 5 core, and control cable transmission control, some more, according to the terms of more than 61 core, but also can produce according to user re
（3）低卤低烟阻燃PVC绝缘和护套：70℃；无卤低烟阻燃绝缘和护套：90℃和125℃两种。
3.最低环境温度：（1）阻燃聚氯乙烯绝缘和护套：固定敷设-40℃；非固定敷设-15℃；（2）氟塑料绝缘和护套：固定敷设-60℃；非固定敷设-20℃；4.电缆安全敷设温度不应低于0℃。
电力电缆得到越来越广的应用。
1911年，德国敷设成60千伏高压电缆，开始了高压电缆的发展。
1913年，德国人M.霍希施泰特研制成分相屏蔽电缆,改善了电缆内部电厂分布,消除了绝缘表面的正切应力，成为电力电缆发展中的里程碑。
阻燃电缆事项设计人员应该根据阻燃电缆的，具体特性对阻燃电缆进行设计选用及敷设施工，并应注意以下几个问题：（1）由于含卤阻燃电缆（包括阻燃电缆、低卤低烟阻燃电缆）在燃烧时会释放具有腐蚀性的卤酸气体，大大阻碍消防工作从而耽误救火时间并加剧火势蔓延，在人口密度较高的公众场所应尽量设计选用无卤低烟阻燃电。
X电容应用一般两根引脚跨接在零线和火线之间，适用于高频、直流、交流、耦合，跨接脉冲电路中，能够能承受过压冲击，一般与电阻并联使用，目的是起到泄放电荷作用。
（如所示）Y电容作用Y电容用来消除共模干扰。
分别跨接在电力线两线和地之间（L-E，N-E）的电容，一般是成对出现，滤除高次谐波，防止干扰，提高输出电压质量。
基于漏电流的限制，Y电容值不能太大，Y电容通常采用高压瓷片的。
Y电容应用很多隔离式开关电源在初级和次级上加Y电容是为了给次级的共模电流提供一个回路到初级，减少共模电流对输出的影响。
SYV75－5＋SYV75－4＋SYV75－3＋RV2、生产标准：国家标准、企业标准3、说明：导体使用单支或多支裸铜绞合实芯聚乙烯或PVC绝缘外包铝箔屏蔽软裸铜线编织屏蔽软聚氯乙烯护套长期允许工作温度不超过70℃组合电缆=屏蔽控制电缆+电源线+信号电缆+同轴电缆|复合电缆；如；SYV75-5+RVV。
MHYVR矿用聚乙烯绝缘、阻燃聚氯乙烯护套信号软电缆。
NHB—VV适用范围：固定敷设于室内、隧道内、托架及管道中要求阻燃耐火的场所。
电缆导体长期工作温度不超过+70℃，电缆敷设温度不低于0℃，电缆弯曲半径不小于电缆外径的20倍。
计算机电缆本产品适用于电压300/500v电力、冶金、石化等行业以电子计算机为主的自动化控制系统、计算机集散控制系统、自动化控制系统作控制线以及检测用仪器仪表用计算机电缆。
使用特性：电压300/500v，最高工作温度聚氯乙烯绝缘不超过70℃交联聚乙烯绝缘90℃低烟无卤阻燃70°。
对于星绞式电缆，其排列顺序为：星绞组数×每组心线数导线直径（mm） 50×4×0．5—100对电缆对于对绞式电缆，其排列顺序为：心线对数×每对心线数×导线直径（mm） 100×2×0．5—100对电缆。
DJYP2V(R)P2聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套计算机用屏蔽(软)电缆。
DJYV(R)P3聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套计算机用屏蔽(软)电缆。
DJYP3V(R)聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套计算机用屏蔽(软)电缆。
聚氯控制电缆：KVV：聚氯乙烯绝缘聚氯乙烯护套控制电缆KVVP：聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制电缆KVVP2：聚氯乙烯绝缘聚氯乙烯护套铜带屏蔽控制电缆KVV22：聚氯乙烯绝缘聚氯乙烯护套钢带铠装控制电缆KVV32：聚氯乙烯绝缘聚氯乙烯护套细钢丝铠装铠装控制电缆KVVR：聚氯乙烯绝缘聚氯乙烯护套。
RST（复位指令）使被操作的目标元件复位并保持清零状态。
SET、RST指令的使用如所示。
当X0常开接通时，Y0变为ON状态并一直保持该状态，X0断开Y0的ON状态仍维持不变；只有当X1的常开闭合时，Y0才变为OFF状态并保持，X1常开断开，Y0也仍为OFF状态。
SET、RST指令的使用说明：SET指令的目标元件为Y、M、S，RST指令的目标元件为Y、M、S、T、V、Z。
RST指令常被用来对Z、V的内容清零，还用来复位积算定时器和计数器。
ZRKVVP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽zrkvvp电缆450/7504-370.75-10敷设在室内，电缆沟、管道等要求屏蔽、阻燃的固定场合。
ZRKVVR铜芯聚氯乙烯绝缘聚氯乙烯护套编织zrkvvr电缆450/7504-370.75-10敷设在室内，有移动和阻燃要求的场合。
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/Tmanufacuring 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 e companies supporting products, established long-term cooperation relations, products have been users praise and trust!
主要技术指标应符合下表要求： 型号导体组成根/丝径mm²20℃直流电阻Ω/km20℃绝缘电阻MΩ/km工作电容uF/km电感uH/kmMHYVMHYVRP42/0.15(0.75mm²) 26.0 ≥5000 ≤0.10。
KVVRC：自承式铜芯聚氯乙烯绝缘聚氯乙烯护套行车控制电缆KVVPRC：自承式铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽行车专用电缆KVVP2RC：自承式铜芯聚氯乙烯绝缘聚氯乙烯护套铜带编织屏蔽行车专用电缆KVVRPRC：自承式铜芯聚氯乙烯绝缘聚氯乙烯护套软芯行车专用电缆KVVRP2RC：自承式铜芯聚氯乙。