The electrical cabinet enclosure is primarily used to protect internal equipment and components from wind and rain, and can be customized based on the level of protection. Shouke® has a professional team that can customize it on demand.
Electrical cabinet enclosures are designed specifically to house high- and low-voltage electrical components (such as circuit breakers, inverters, and power distribution modules) in industrial, commercial, or outdoor environments. Customization should consider load-bearing capacity, high protection levels, and component layout compatibility.
Ensure the electrical cabinet enclosure meets electrical system requirements and site conditions:
Electrical component parameters: Confirm the size, weight, and mounting method of internal components (for example, industrial inverters use standard 19-inch rails, heavy-duty circuit breakers use fixed mounting). Calculate the minimum internal space.
Scenario-specific protection: Define the IP rating (for example, IP54 for industrial workshops, IP65 for outdoor power distribution) and environmental resistance (for example, -30°C to 70°C for cold industrial areas, corrosion resistance for coastal power plants).
Functional and safety add-ons: Specify double doors (for large cabinets), inspection windows (tempered glass for heat resistance), built-in heat exchangers (for high-power components), grounding terminals (compliant with IEC 60439), or anti-theft locks (stainless steel for pry resistance).
Select materials based on load, environment, and safety:
Main Material:
Cold-rolled steel: Cost-effective and high-strength (suitable for indoor industrial cabinets). Powder-coated (RAL 7035 gray, standard) for rust resistance; thickness 1.5-2.5 mm (cabinet body), 2.0-3.0 mm (door) for load-bearing performance.
Stainless steel (304/316): Excellent corrosion resistance (316 is suitable for coastal/marine environments). Ideal for outdoor or chemical plant cabinets; thickness 1.2-2.0 mm (lighter than steel, but more durable).
Aluminum alloy: Lightweight (suitable for mobile electrical cabinets) and excellent heat dissipation. Anodized surface for corrosion resistance; suitable for low-load, high-heat environments (such as inverter cabinets).
Use processes commensurate with the material and design complexity:
Sheet Metal Processing (mainly steel/stainless steel):
CNC Punching: Precision-machine holes (for glands, buttons) and mounting slots; tolerances of ±0.1mm are maintained to accommodate standard components.
Bending: The electrical cabinet enclosure body (top/bottom/side panels) is formed at precise angles (90° ± 0.5°) to ensure seamless assembly.
Welding and Polishing: Weld the ribs to the frame; polish the welds to a smooth finish to prevent cable damage. Post-weld pickling (for stainless steel) removes the oxide layer.
Surface Treatment: Steel Cabinet: Degreasing → Phosphating → Powder Coating (Coating Thickness 60-80μm); Stainless Steel: Passivation (Enhanced Corrosion Resistance); Aluminum Alloy: Anodizing (Coating Thickness 10-15μm).
Assembly: Install mounting rails, grounding terminals, cable ducts, and seals. Ensure the rails are level (tolerance ±1 mm/m); tighten the bolts using a torque wrench to prevent loosening due to vibration.
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Ingress Protection Test |
IP rating verification (e.g., IP65: 8-hour dust chamber test, water spray test) (30 kPa pressure for 5 minutes, no water or dust ingress) |
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Structural Test |
Load test (120% of the rated component weight is placed on the rail for 24 hours, no deformation); Door Durability Test (1000 opening and closing cycles, seal intact) |
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Electrical Safety Test |
Ground Continuity Test (resistance ≤ 0.1 Ω); Insulation Test (500 V DC, insulation resistance ≥ 100 MΩ) to prevent leakage |
