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Choose 304 stainless steel with nickel content ≥8%, thickness 1.5-2.0mm, resistant to rain corrosion, and will not rust for 10 years of outdoor use; the surface is treated with anti-static treatment to avoid static electricity interfering with the operation of power distribution equipment. It is equipped with explosion-proof steel doors (with mechanical password locks) and explosion-proof tempered glass windows (thickness 8mm) to prevent accidental impact damage to equipment; louver vents (with dustproof nets) are added on the top, and industrial exhaust fans are used to keep the indoor temperature stable (controlled within 35°C); internal equipment installation brackets (adjustable height) are suitable for the placement of residential distribution transformers and distribution cabinets.