When selecting explosion-proof electrical equipment, the following points need to be considered:
1. Under the principle of meeting the overall explosion-proof requirements, ensure safety, reliability, and economic rationality.
2. It should conform to the classification, grading, and zoning of explosion-hazardous locations, as shown in the table.
3. It conforms to the gas level, group, and relevant characteristic data of the hazardous location.
4. It conforms to the type of electrical equipment and the prescribed usage conditions.
5. The selected electrical equipment model should not be lower than the level and group of the explosive hazardous substances in the location.
6. The selected explosion-proof electrical equipment model should meet the requirements of the operating environment, such as corrosion resistance, moisture resistance, mildew resistance, rain and snow resistance, and wind and sand resistance, so as to ensure that its explosion-proof performance will not be reduced under operating conditions.
