联系我们
保定市伊诺尔电气设备有限公司
手机：15003226901
邮箱：enrdq@126.com
地址：河北省保定市竞秀区 风能街315号
新闻动态
在选择电力电缆的截面时，应遵照哪些规定？
在选择电力电缆的截面时，应遵照哪些规定？
What are the requirements for selecting the cross section of the power cable?
电力电缆的选择应遵照以下原则：
The selection of power cables shall comply with the following principles:
（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 shall be greater than or equal
to the rated voltage of the power supply system of 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 a cable shall be equal to
or greater than the maximum sustained current of the power supply;
（3）线芯截面要满足供电系统短路时的稳定性的要求；
(3) the core section should meet the requirement of stability when the power supply system is short circuited;
（4）根据电缆长度验算电压降是否符合要求；
(4) check whether the voltage drop meets the requirements according to the cable length;
（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 shall enable the protection device to act reliably.
