ADD distribution box distance from ground

In homes, the best height for installation is about 1. 5 meters from the floor — it's easy to reach and out of children's reach. Leave enough space around the box for air to flow and for future. According to the "Code for Acceptance of Construction Quality of Building Electrical Engineering" GB50303-2002, the vertical distance between the bottom surface of the fixed stainless steel enclosure ip67 and the ground should be greater than 1. The bottom surface. Distribution box and switch box should not exceed 30 meters. Check and fix the box. The maximum height should be 1800mm (approximately 6 feet) from ground level to allow access without ladders, while the minimum height should be 450mm (approximately 1. 5 is an article in the National Electrical Code that addresses requirements for underground electrical installations, including minimum cover requirements—the measurement used to determine the distance from the top of an underground cable or raceway to the finished grade.