Wuxi Shengminghua explains what the electrical clearance is in the distribution cabinet
What is the electrical space in the distribution cabinet?
When it comes to the phenomenon of distribution cabinets, we often mention electrical open spaces. What is electrical open space? Wuxi Shengminghua, a manufacturer of distribution cabinets, would like you to introduce the electrical space of distribution cabinets today.
Low voltage distribution cabinets are widely used electrical equipment, and many people are familiar with them. We often see many bare charged bodies inside the cabinet doors, just like copper coins (chemical equation Cu). Generally speaking, this type of bare charged body is arranged very neatly, and there is a certain distance between the same bare charged body and the hood. In industrial production, we call it an electrical open space, and there is also a related term for distribution cabinets. What's the problem? How much does the electric space cost? What is the function of electrical insulation? How much should the electric open space be maintained for?
The indicators of bare live parts in the distribution cabinet:
The electrical open space in the middle of different bottom pressure metal material meter boxes should exceed 20mm. The electrical open space between the enclosed busbar and the grounding system of the distribution cabinet should exceed 20mm. The electrical open space between the bare charged body in the control circuit and the metal product in the grounding system should exceed 20mm. When the distance between the enclosed busbar is less than 20mm, the insulation layer binding method used in the distribution cabinet should be set according to the requirements.
The effect of electrical clearance and creepage distance in distribution cabinets:
Simply put, the electrical clearance and creepage distance inside low-voltage distribution cabinets are actually two basic parameters related to the insulation layer of electrical equipment. Utilize industrial control system products, such as relays In addition to complying with relevant standards, the electrical equipment distance and creepage distance of the distribution cabinet should also be set appropriately to maintain the stability of its electrical equipment characteristics, such as the main power switch.
