1. Indoor installations or outdoor applications with protective measures;
2. Outdoor installations exposed to wind, sand, rain, dew, and sunlight;
3. Environments with flammable or explosive gases or dust;
4. Humid tropical and arid tropical environments;
5. Pipeline medium temperatures exceeding 450℃;
6. Ambient temperatures below -20℃;
7. Susceptible to flooding or immersion in water;
8. Environments containing radioactive materials (nuclear power plants and radioactive material testing facilities);
9. Environments on ships or in docks (with salt spray, mold, and humidity);
10. Locations with severe vibration; locations prone to fire.
