1. Project Overview
This project involved the supply of hot-dip galvanized steel grating systems for a large-scale solar photovoltaic (PV) power plant maintenance platform.
The client required a safe, durable, and corrosion-resistant walking and inspection platform for long-term outdoor operation in a desert and high-UV environment. The steel grating system is used to support routine inspection, cleaning, and maintenance activities for solar panel rows.
2. Project Requirements
The main technical and functional requirements from the client included:
Long-term corrosion resistance in outdoor environments
Anti-slip surface for maintenance workers
Lightweight structure with high load-bearing capacity
Easy installation on steel support structures
Resistance to sand, wind, and UV exposure
Low maintenance cost over long service life
3. Product Specification
The steel grating used for the PV maintenance platform is specified as follows:
| Item |
Specification |
| Material |
Q235 / Q355 Carbon Steel |
| Type |
Welded Steel Grating |
| Bearing Bar Size |
25×3 mm / 30×3 mm |
| Bearing Bar Pitch |
30 mm |
| Cross Bar Pitch |
100 mm |
| Surface Treatment |
Hot-Dip Galvanized (ISO 1461 standard) |
| Installation Type |
Bolted / Clip-fixed modular panels |
| Application |
Solar PV maintenance walkway platform |
4. Engineering Solution
To meet the demanding outdoor requirements of solar power plants, a lightweight but high-strength welded steel grating system was designed.
Key engineering features include:
Optimized structure to reduce wind resistance on elevated platforms
Serrated surface option for enhanced anti-slip performance
Modular panel design for fast installation and replacement
High-strength galvanized coating for long-term corrosion protection
Precise sizing to match solar rack structural spacing
The system ensures safe access for maintenance workers while minimizing shading impact on solar panels.
5. Application Scenario
The steel grating maintenance platforms were installed in the following areas of the solar power plant:
Long-row photovoltaic panel maintenance walkways
Elevated inspection corridors between solar module arrays
Inverter station access platforms
Cable trench crossing walkways
Cleaning and repair operation routes
The design allows workers to safely access equipment without damaging surrounding PV structures.
6. Project Results
After installation, the client reported significant improvements:
Improved safety for maintenance personnel in elevated areas
Reduced maintenance time for solar panel inspection and cleaning
Excellent performance in sandstorm and high-temperature conditions
Long-term corrosion resistance with minimal maintenance
Faster installation compared to concrete or solid steel platforms
The modular steel grating system significantly improved operational efficiency of the PV plant.
7. Frequently Asked Questions (FAQ)
Q1: Why is steel grating used in solar power plants?
A1: It provides a lightweight, strong, and corrosion-resistant walking surface for maintenance access.
Q2: What surface treatment is best for outdoor PV projects?
A2: Hot-dip galvanizing is the most common and effective anti-corrosion treatment.
Q3: Can steel grating withstand desert or coastal environments?
A3: Yes, galvanized steel grating performs well in high UV, sand, and salt corrosion conditions.
Q4: Is the platform safe for long-term maintenance work?
A4: Yes, anti-slip serrated grating improves safety for workers during inspection and cleaning.
Q5: Can the system be customized for different solar mounting structures?
A5: Yes, panels can be customized in size, load capacity, and fixing methods.
Specifications of steel grating
|
Name
|
Steel Grating
|
|
Bearing Bar
|
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1
1/2''x1/8'' etc
|
|
Bearing Bar Pitch
|
12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
|
|
Twisted Cross Bar Pitch
|
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
|
|
Material Grade
|
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400,
Mild steel & Low carbon steel, etc
|
|
Surface Treatment
|
Black, self colour, hot dip galvanized, painted, spray coating
|
|
Grating Style
|
Plain / Smooth, Serrated /teeth, I bar, serrated I bar
|
|
Standard
|
China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),
UK: BS4592-1987, Australia: AS1657-1985,
Germany: DIN24537-1-2006, Japan :JIS
|
Our team
Customer visit
We supply custom steel grating systems for solar PV power plant maintenance platforms, including design support, load calculation, and customized fabrication.
If you are planning a solar project or upgrading an existing PV installation, contact us for a tailored solution and quotation.
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