This is a quick video to demonstrate how to carry out Ze testing- External earth fault loop impendence in a real world.
This video is for competent people and I must emphasise that the working on electricity is very dangerous and must only be carried out by the suitably qualified and competent people.
*0.8 Ω for TN-S system
*0.35 Ω for a TN-C-S system
Please don't forget to like and subscribe.
![](https://i.ytimg.com/vi/cjYfSLLVvsc/maxresdefault.jpg)