Three phase five wire system includes three phase lines (a, B, c) and neutral line (n); And ground wire (PE wire). The neutral line (N line) is the zero line. When the three-phase load is symmetrical, the sum of the current vectors flowing into the neutral line of the three-phase line is zero, but f

1. The whole electrical box is small, too compact, components density is large, lack of some space. Some electrical boxes have components on both sides, which is not conducive to heat dissipation and easy to be disturbed.2. The design layout and component layout of the electrical box are incorrect a

In the 21st century, we should pay attention to intelligent management, whether it is domestic water supply, fire control, sprinkler, or industrial cooling cycle, sewage discharge, etc. The most important thing here is to equip the electrical distribution box. What's the reason?1. The need of automa

Today, the distribution box factory will share with you what kind of standard the control box should meet under normal circumstances. Now let's have a look!1. First of all, when using the control box, the normal temperature should not exceed 40 ℃.2. Within 24 hours, the average temperature of the co