力电缆的选择应遵照的原则-煤矿用电缆挂钩,h/o/u/c型电缆夹生产厂家

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力电缆的选择应遵照的原则
[来源:http://www.xxwlys.com] [作者:aowl] [日期:19-01-05] [浏览次数:]

电(1)电缆的额定电压要大于或等于安装点供电系统的额定电压; (1) the rated voltage of the cable should be greater than or equal to the rated voltage of the power supply system at the installation point. (2)电缆持续容许电流应等于或大于供电负载的最大持续电流; (2) the continuous permissible current of the cable should be equal to or greater than the maximum continuous current of the power supply load; (3)线芯截面要满足供电系统短路时的稳定性的要求; (3) the cross section of the wire core should meet the requirements of the stability of the power supply system short circuit. (4)根据电缆长度验算电压降是否符合要求; (4) checking the voltage drop according to the cable length is in line with the requirements. (5)线路末端的最小短路电流应能使保护装置可靠的动作。 (5) the minimum short-circuit current at the end of the line should be able to make a reliable action of the protective device.

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