Explosion-proof equipment must be certified and come with an official certificate issued by the National Explosion-Proof Electrical Product Quality Supervision and Inspection Center. All accessories, spare parts, and technical documentation should be complete and available for reference. Additionally, all cables and insulated wires used must have a compliance certificate to ensure they meet safety standards.
When planning the installation path for the main circuit of an explosion-proof distribution box, it is essential to keep the route as short as possible. This helps reduce costs and simplifies the layout, especially in areas with simple topography and minimal terrain complexity.
The installation path should avoid farmland and areas prone to geological hazards such as depressions, flood-prone zones, ground subsidence, or unstable slopes. It should also avoid locations that are likely to be hit by vehicles to prevent damage and ensure safety.
Moreover, the path should not pass through areas where hazardous materials like explosives or flammable substances are produced or stored. The circuit should ideally be installed in accessible locations that allow for easy maintenance and construction activities.
During the selection of the installation path, the importance of the buildings in the area should be considered. Future urban development and power grid planning should also be taken into account, ensuring there is enough space left for future expansion.
It is important to avoid certain sensitive areas when installing explosion-proof distribution boxes. These include national memorial sites, historical monuments, and other protected areas. Also, places with dense tree clusters, gardens, or residential yards should be avoided if possible.
Areas prone to flash floods, frequent flooding, or difficult terrain such as mountains, lakes, or regions with unstable geological conditions should be bypassed. In addition, locations with high concentrations of flammable materials, corrosive gases, or severe contamination should not be considered for installation.
Explosion-proof distribution boxes are suitable for use in explosive gas environments classified as Zone 1 and Zone 2. They can be used in Type IIA, IIB, and IIC hazardous locations, and are compatible with temperature groups T1 through T4. This ensures safe operation in a wide range of potentially explosive atmospheres.
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