1. Explosion-proof form, category, grade, group;

2. The degree of protection of the shell;

3. Installation method and installation fastener requirements:

3.1. The explosion-proof lamp must be fixed, the fastening bolts must not be replaced at will, and the spring washers must be complete;

3.2. The dust-proof and waterproof sealing ring should be placed as it is when installing;

3.3. When the cable enters the cable, the cable and the gasket should be closely matched, the cable section should be prototype, and the sheath surface should not have defects such as bumps and convexities;

3.4. Excess entrances should be blocked according to the explosion-proof type, and the compression nut should be tightened to seal the entrance.