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

 

 

 

當(dāng)用電負(fù)荷太小時(shí)，如果按照上節(jié)課中提到的按允許載流量計(jì)算選擇的導(dǎo)線，其截面也太小，當(dāng)導(dǎo)電線太細(xì)的時(shí)候往往不能滿足足夠的機(jī)械強(qiáng)度要求，這就容易發(fā)生斷線事故。

 

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，對(duì)于室內(nèi)配線電線的線芯的最小允許截面有專門的規(guī)定，并且：當(dāng)按照允許載流量選擇的導(dǎo)線截面小于下表中的規(guī)定時(shí)，應(yīng)按照最小允許截面來(lái)選擇。室內(nèi)配線電線線芯最小允許截面要求：

 

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:

 

 

 

室內(nèi)配線電線線芯最小允許截面規(guī)定要

 

Minimum Allowable Section of Wire Core for Indoor Wiring