The switchgear enclosure is assembled using 2-mm-thick aluzinc-coated steel plates secured with bolts, achieving an IP2X protection rating and incorporating reliable mechanical interlocking and anti-misoperation features. Additionally, two pressure-release openings are provided—one for the cable compartment and one for the busbar compartment—to safely vent internal gas pressure, thereby maximizing personnel safety and operational reliability of the equipment.

• Altitude: Not exceeding 1,000 m.
• Ambient temperature: Not higher than +40°C and not lower than -25°C.
• Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.
• Seismic intensity: Not exceeding 8 degrees.
• Location free from fire, explosion, severe contamination, chemical corrosion, and intense vibration.