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Prefabricated Substations

10–40.5 kV Prefabricated Cabin Substation

Container-class substation fully built, wired and tested in the factory and shipped as one cabin — 40-year anti-corrosion shell, 3-hour fire-rated walls, refrigerator-grade insulation, smart fire-alarm and access control.

Factory-direct supply Worldwide delivery & export documentation 12-month warranty · extended options
  • Underframe welded from section steel; integral welded framework in quality carbon structural steel, yield stre
  • Frame, door panels, roof and base plates all 2 mm quality steel
  • Sand-blasting, hot zinc spraying and premium outdoor polyurethane finish keep the shell rust-free for 40 years
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At a glance

Built to perform, year after year

≥ 235 MPa
Structural steel yield strength
2mm
Frame / door / roof / base plate
5 cm A 级岩棉 Rock wool
Insulation layer
≥ 48 mm
Door thickness
A closer look

Engineered around safety, efficiency and uptime

Overview

The prefabricated cabin is a large box-type substation applied to PV and wind projects. Primary cabinets, secondary panels and auxiliary systems are produced, assembled, wired and commissioned in the factory, then delivered to site as one integral cabin — standardised, modular and prefabricated. It can be built as separate primary-equipment and secondary-equipment cabins or customised as a complete set, cutting on-site wiring, design, construction and commissioning workload and markedly outperforming civil-built substations in cost and O&M.

Cabin body & corrosion protection

Underframe welded from section steel; integral welded framework in quality carbon structural steel, yield strength ≥ 235 MPa — no deformation in hoisting, transport or installation
Frame, door panels, roof and base plates all 2 mm quality steel
Sand-blasting, hot zinc spraying and premium outdoor polyurethane finish keep the shell rust-free for 40 years

Thermal, ventilation & safety

“Refrigerator” insulation: double steel skin with 5 cm Class-A rock wool; doors ≥ 48 mm thick for 24-brick-wall thermal effect
Ventilation to DL/T 5035-2016: integrated air duct with micro-positive-pressure A/C; imported maintenance-free axial fans, multi-stage dust filtering and air valves preserving the IP rating
Push-bar emergency escape locks; walls fire-rated ≥ 3 h with mechanical smoke extraction to GB 50016; HVAC auto-stops on fire
LED corridor lighting plus UPS-fed accident lighting and ≥ 60 min battery emergency lights with exit signs
Two-bus modular intelligent fire alarm with auto/manual linkage; card + PIN access control per door; primary and secondary cable ducts independent, sealed, Class-A fire-lined

Technical specifications

Full specifications

Cabin construction data
Structural steel yield strength
≥ 235 MPa
Frame / door / roof / base plate
2 mm
Insulation layer
5 cm A 级岩棉 Rock wool
Door thickness
≥ 48 mm
Fire endurance of walls
≥ 3 h
Emergency lighting duration
≥ 60 min
Anti-corrosion design life
40 年 years
Primary cable duct
双层 2.0mm 镀锌板 · A 级耐火

Specifications are representative and may vary by configuration and region. Final figures are confirmed on the project datasheet.

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