It is advisable to use liquid suitable for low temperatures, or preheat the equipment before starting.

Equipment selection

There are many types of explosion-proof electrical equipment with different functions. The explosion-proof performance varies due to different structural functions, so it is necessary to select appropriate explosion-proof electrical equipment according to the type of explosive substances, the type of equipment, the degree of danger of the installation site, etc. The following principles should generally be followed when selecting explosion-proof electrical equipment:

Adapt to the working environment

When in an open-air environment, explosion-proof equipment that requires protection from the sun, rain, and sandstorms must use electrical equipment marked "outdoor use". Some equipment is also used in corrosive or toxic environments, high temperature, high pressure, or low temperature environments. When selecting explosion-proof equipment, special requirements for adapting to these special environments should be considered.

The equipment should be adapted to the degree of danger of the explosive mixture

Choose appropriate explosion-proof electrical equipment according to the danger level of the explosive mixture, otherwise safety cannot be guaranteed. If there are two or more explosive substances of different danger levels in the same area, the principle of choosing the higher rather than the lower one should be adopted, and choose explosion-proof electrical equipment according to the explosion level with the highest danger level. In non-hazardous places, ordinary electrical equipment is generally used, but when containers containing explosive substances are placed in non-hazardous areas, there is also the possibility of danger. Therefore, the possibility of accidental danger must be considered when installing electrical equipment.

To facilitate maintenance

Explosion-proof electrical equipment must be regularly maintained during use, so when choosing explosion-proof electrical equipment, the simpler the structure, the better. At the same time, attention should be paid to convenient management, short maintenance time, low cost, and normal storage of spare parts.

Pay attention to economic benefits

The higher the grade of explosion-proof electrical equipment, the higher the price. When selecting explosion-proof electrical equipment, it is necessary to select appropriate explosion-proof electrical equipment according to the flammable and explosive places. It is also necessary to make a comprehensive analysis of the reliability, life, operating costs, energy consumption and maintenance of the electrical equipment in order to select the most suitable and economical explosion-proof electrical equipment.

In addition, when purchasing explosion-proof electrical products, you should also fully consider the special environmental conditions of the application site, etc. These factors will affect the explosion-proof performance and electrical performance of the electrical products.