Wire Strength Requirements: Minimum Allowable Section of Wire Core for Indoor Wiring

 

 

 

当用电负荷太小时，如果按照上节课中提到的按允许载流量计算选择的导线，其截面也太小，当导电线太细的时候往往不能满足足够的机械强度要求，这就容易发生断线事故。

 

When the electric load is too small, if the conductor selected according to the allowable carrying capacity calculation mentioned in the last lesson is too small, when the conductor is too thin, it often can not meet enough mechanical strength requirements, which is prone to wire breakage.

 

 

 

因此，对于室内配线电线的线芯的最小允许截面有专门的规定，并且：当按照允许载流量选择的导线截面小于下表中的规定时，应按照最小允许截面来选择。室内配线电线线芯最小允许截面要求：

 

Therefore, there are special provisions for the minimum allowable cross-section of the core of indoor wiring, and when the conductor cross-section selected according to the allowable carrying capacity is less than the stipulation in the table below, the minimum allowable cross-section should be selected according to the minimum allowable cross-section. Minimum allowable cross section requirement for indoor wiring cores:

 

 

 

室内配线电线线芯最小允许截面规定要

 

Minimum Allowable Section of Wire Core for Indoor Wiring