3、低传输阻抗，电磁兼容性好。
4、低工作电容。
5、良好的抗干扰和低辐射性能。
6、对称的三芯电缆结构设计，具有比四芯电缆更好的传输性能。
7、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。
8、具有良好的屏蔽性能，可降低变频器输出中存在的高次揩波的不良影响。
VV：聚氯乙烯绝缘聚氯乙烯护套电力电缆ZR-VV：聚氯乙烯绝缘聚氯乙烯护套阻燃电力电缆用途：敷设在室内、隧道内、管道中、电缆不能受机械外力作用VV22：聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆ZR-VV22：聚氯乙烯绝缘钢带铠装聚氯乙烯护套阻燃电力电缆用途：敷设在室内、隧道内、管道中、敷设在地下，电。
MHY32(PUYV39、PUYV39-1) 矿用聚乙烯绝缘阻燃聚氯乙烯护套单层钢丝铠装井筒信号电缆 用于斜井或竖井中作主信号电缆MHYVRP(PUYVRP) 矿用聚乙烯绝缘阻燃聚氯乙烯护套铜丝编织屏蔽信号软电缆 用于井下平巷或斜巷作信号电缆MHYVP(PUYVP) 矿用聚乙烯绝缘。
Purpose: this product USES high pressure polyinsulation with small interface constant.
YJV32YJLV32YJV33YJLV33YJV42YJLV42YJV43YJLV43交联聚乙烯绝缘聚氯乙烯/聚乙烯护套钢丝铠装电力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。
2、可根据用户要求，生产0.6/1KV圆形导体结构或扇形导体结构的各类五芯电缆。
下表比较了**控制定时器、普通定时器和基本定时器的功能：定时器功能比较1）计数器三种计数模式向上计数模式：从0开始，计到arr预设值，产生溢出事件，返回重新计时向下计数模式：从arr预设值开始，计到0，产生溢出事件，返回重新计时对齐模式：从0开始向上计数，计到arr产生溢出事件，向下计数，计数到1以后，又产生溢出，再从0开始向上计数。
（此种技术方法也可叫向上/向下计数）2）**控制定时器（TIM1和TIM8）两个**控制定时器（TIM1和TIM8）可以被看成是分配到6个通的三三相PWM发生器，它具有带死区插入的互补PWM输出，还可以被当成完整的通用定时器。
KYJVPZR-KYJVP铜芯交联聚乙烯绝缘聚氯乙烯护套编织屏蔽控制电力电缆敷设在室内、电缆沟、管道等要求屏蔽的固定场合。
KYJVP2ZR-KYJVP2铜芯交联聚乙烯绝缘聚氯乙烯护套铜带屏蔽控制电力电缆敷设在室内、电缆沟、管道等要求屏蔽的固定场合。
现代工业中，各类变频设备的节能效果十分明显，在大功率电机中采用变频调速电机，整个发电机组可节电30％。
并且使用变频调速后，实现了电机的软启动，使电机工作平稳，电机轴承磨损减小，延长了电机使用寿命和维护周期。
The advantages of electric cable are more and less. Generally, it is buried in the soil or laid in indoor, ditch, middle, line insulation distance is small, no tower, little, basically no surface space. High reliability. It is less affected by climatic conditions and surroundings, and has high transmission performance and reliability. It has more favorable conditions for the development of ultra-high voltage and large capacity, such as low temperature, superconducting power cable, etc. The distributed capacitance is large. Less work. Less likely.
型号产品名称敷设场合及要求芯数标称截面mm2导体长期允许工作温度℃245IEC81(YH)高强度橡套电焊机电缆用作电焊机二次侧接线及连接电焊钳的软电缆116～9565YH天然胶护套电焊机电缆用作电焊机二次侧接线及连接电焊钳的软电缆110，120～18565245IEC8。
BV line, BVR line, RVSP double stranded shielded cable, RVS double stranded cable, RVB parallel line, RV line RVSP Shielded twisted-pair cable RVSP (shielded twisted-pair cable, shielded cable, shielding twisted-pair electric (HYVP, RVVP) RVVP twisted-pair shielded cable < < shielded wire > > is shielded twisted-pair cable RVSP series on the basis of RVS coupled with a layer of copper wire shielding net, so the transmission loss, shielding the outside world better than RVS series, but because of the copper wire shielding network, its cost is also much higher than RVS series. Are often used to those who has a high re on the transmission. Technical indicators: polyvinyl chloride insulated cable long-term allowed working temperature over 70 ℃, the cable temperature under installation should not below 0 ℃, outer diameter (D) is less than 25 The allowable bending radius of mm cable shall not be less than 4 times the outer diameter of the cable. Diameter (D) of 25 mm and above of permissive bending radius of cable, not less than 6 times of cable diameter. The product description: this product is fit for ac rated voltage up to and including 450/750 power, electrical appliances, instruments, instrumentation, telecommunications e, lighting circuit and automatic device fixed installation, connection with a soft line, installed with a soft line and strong with shielded wire, according to the needs of use also can produce this kind of wire and cable fire retardant class (ZR), high flame retardant class (GZR), heat-resistant class (90 ℃, 105 ℃, 200 ℃, 250 ℃), low temperature resistant, nylon sheath, refractory (NH ), the company's main products: power cable control computer cable wire and cable wire and cable we specialized in wire and cable production and sales. Our products are high and low price, complete variety, there are all kinds of wire and cable, domestic orders can be delivery. We will with the high service to your satisfaction. If you have please telephone subscribers.
DJYP3V polyethylene insulation on twisted aluminum plastic composite tape sub - shielding PVC
压验电器在验电时，应该在电容器组上验电应待其放电完毕后再进行；7.对同杆塔架设的多层电力线路进行验电时，先验低压、后验高压，先验下层、后验上层。
对高压验电器使用完毕后，应及时的将表面尘埃擦拭干净，并且**放在干燥通风的地方进行妥善保管，一般不建议有强烈振动或冲击，并且对于高压验电器不准私自的对其进行随意的调整拆装，并且，为了保证其使用安全，一般会每隔半年就要进行预防性电气试验，这是十分必要的。
如果由于现场的限制，必须要进行星型连接或者树形连接，可以使用深圳市富永通科技有限公司的485集线器和485中继器解决相关问题。
5.485总线必须要接地。
在很多技术文档中，都提到485总线必须要接地，没有详细的提出如何接地。
⑧跑道边灯。
装在跑道两侧，间距50～60m，发出白光,标志跑道两侧边界。
⑨跑道末端灯。
多个，装在跑道末端，横跨跑道，发出红光，标志跑道末端。
⑩滑行道中线灯。
装在滑行道中线上，间距15m、17.5m或30m，发出绿光,标志滑行道中线；若改为红光或黄光，可组成停止排灯或观察通过排灯。
Because of the refractory layer of the refractory cable, the multi-layer mica belt is usually used to wrap directly around the wire. It can withstand long periods of time, even if the polymer at the point where the flame is applied is burned down, it can keep the line running.
U0--任一绝缘导体和\\\\"地\\\\"（电缆的金属护层或周围介质）之间的电压有效值。
U--多芯电缆或单芯电缆系统任何两相导体之间的电压有效值，当用于交流系统时，电缆的额定电压应至少等于所使用电缆系统的标称电压。