控制电缆的额定电压不应低于回路的工作电压,并应满足可能经历的瞬态和工频过电压的要求。以确保在绝缘击穿、机械损坏或火灾的情况下,控制电缆能够减小蔓延范围。
控制电缆属于电气设备用电缆。绝缘芯线颜色一般为黑白,电力电缆低压一般为分色。控制电缆的横截面一般小于10平方米。控制电缆用于传输控制信号,芯数较多。按标准是61核,但也可以按用户要求生产。
煤矿用控制电缆导体的长期允许工作温度为70℃,电缆敷设温度不应低于0℃。煤矿用控制电缆的允许弯曲半径:对于铠装或铜带屏蔽结构的电缆,不应小于电缆外径的12倍。对于有屏蔽层结构的软电缆,应不小于电缆外径的6倍。对于无铠装层的电缆,应不小于矿用电缆外径的6倍。
Main performance of control cable:
1. Insulation resistance: each core is grounded with other cores, with the control cable being greater than 10,000 mΩ.km and HYAT cable being greater than 3000MΩ.km;;
2. Insulation electrical strength: In terms of the insulation electrical strength of the product itself, there is no breakdown between the overall conductors, which ensures that the overall advantage value is obvious when it is used. Now many people themselves still want to know whether it is good when choosing. After recognizing these basic advantages, everyone can make a reasonable choice according to the location and certain characteristics when choosing;
3.额定电压(U0/U):450/750V;
4.工作电容:平均值为52±2nF/km。
控制电缆主要用于传输控制信号,所以控制电缆是一种多绝缘多护套控制电缆,适用于工矿企业、能源和交通部门,以及额定交流电压在450/750伏以下的控制和保护线路。
我公司本着“以质量求生存,以信誉求发展”的生产原则,赢得了新老客户的一致好评。公司内部管理科学,质量保证体系健全,诚信为本,信誉良好,深受国内外客商的信赖。