1. The material is an aluminum alloy casting shell with surface coating, offering an aesthetically pleasing appearance. The explosion-proof and corrosion-resistant series are made of glass fiber reinforced unsaturated polyester resin molded shells or stainless steel welded shells.

2. In use, simply loosen the bolt by 1/3 and then rotate the lid clockwise by 10° to open it, ensuring the bolt doesn't get lost and enabling quick lid opening. There are various methods and specifications for the entry and exit ports, with the threading customizable. Suitable for steel pipes or cable wiring, explosion-proof junction boxes meet the requirements of GB3836-2000, IEC60079, GB12476.1-2000, and IEC61241 standards.

Note: The BHD2 series explosion-proof junction boxes and busbar boxes (hereinafter referred to as junction boxes) are suitable for underground coal mines with explosive gas mixtures containing coal dust. They are used in power supply systems with an AC frequency of 50Hz, voltage of 1140V or less, and current of 400A or less for lighting, signaling, and power cable connections and branching.

The junction box is designed, manufactured, and inspected in accordance with the standards MT429-1995 "Explosion-proof Low-voltage Cable Junction Boxes for Coal Mines" and GB3836.1-2000, GB3836.2-2000, etc.