High Load Capacity
Designed to withstand heavy electrical equipment loads and dynamic forces.
ZZ Steel Equipment Support Structures are designed to support a wide range of electrical equipment in substations, including transformers, circuit breakers, disconnectors, CT/VT, relays, and other control and protection devices. Our structures are engineered for high strength, accuracy, and long-term reliability in harsh environments.
Equipment Support Structures provide stable and secure mounting for electrical equipment in substations. Designed in accordance with international standards, our solutions ensure safety, easy installation, and long service life with minimal maintenance.
Designed to withstand heavy electrical equipment loads and dynamic forces.
Accurate fabrication ensures perfect fit, alignment and easy installation.
Hot dip galvanized surface provides excellent corrosion resistance.
Supports a wide range of equipment for various substation voltage levels.
Strong, stable and durable structure with long service life.
Galvanized finish reduces maintenance cost and extends service life.






| Voltage Level (kV) | Application Equipment | Structure Type | Height Range (m) | Span Range (m) | Load Capacity (kN) | Material | Surface Treatment | Design Standard |
|---|---|---|---|---|---|---|---|---|
| 66 – 132 | Transformer / Circuit Breaker | Single Column | 3 – 8 | 2 – 6 | 5 – 30 | Q235B / Q355B | HDG (≥85µm) | IEC 60652 / IEC 61936 |
| 110 – 220 | CT / VT / Disconnector | Double Column | 4 – 10 | 3 – 8 | 10 – 60 | Q235B / Q355B | HDG (≥85µm) | IEC 60652 / IEC 61936 |
| 220 – 500 | Reactor / Capacitor Bank | Portal / Cantilever | 6 – 16 | 4 – 12 | 20 – 100 | Q355B | HDG (≥85µm) | IEC 60652 / IEC 61936 |
| 500 – 800 | High Voltage Equipment | Portal | 8 – 20 | 6 – 16 | 30 – 150 | Q355B / Q420B | HDG (≥85µm) | IEC 60652 / IEC 61936 |
Note: Data above for reference only. Custom design available according to project requirements.

High-quality steel material inspection.

CNC cutting for precise dimensions.

Accurate drilling and punching.

Automatic welding ensures high strength.

Hot dip galvanizing for corrosion protection.

Strict quality inspection before delivery.

Secure packing and timely shipment.

220kV Substation Projectin Saudi Arabia

132kV Substation Projectin Indonesia

400kV Substation Projectin South Africa

220kV Substation Projectin Vietnam

500kV Substation Projectin Israel

110kV Substation Projectin Philippines
ZZ Steel provides high-quality, customised equipment support structures for substations worldwide. Contact us today to get a competitive quote!