Separation of PEN Line in TN-C-S System: Which Should Be Connected First, Neutral or PE Busbar?
In a TN-C-S system, when the PEN line within a building needs to be separated into PE and N lines, many people are puzzled: should the neutral busbar be connected first, or the PE busbar? This is quite a significant question! In a TN-C-S system, the distribution trunk enters the building and connects directly to … Read more