During the 25 year design lifecycle of photovoltaic power plants, photovoltaic brackets are considered as core foundational components. The bracket does not directly generate electrical energy, but carries all photovoltaic modules. The structural strength, anti-corrosion performance, and accessory quality of the bracket directly determine whether the entire power station can generate electricity safely and stably in the long term. If there are shortcomings in the selection, process, and accessories of the bracket, problems such as component corrosion, deformation, collapse, and grounding failure may occur, resulting in loss of power generation and even safety accidents.

1、 Reliable structural mechanics design to resist external forces from the natural environment
Photovoltaic brackets must first meet the requirements of local wind pressure, snow pressure, and seismic loads.
Ground power stations are located in complex environments, with high winds and snow accumulation being high-frequency tests. A qualified bracket is not simply a standardized assembly of profiles, but requires mechanical verification based on the meteorological data of the project location.
Under strong wind conditions: The main beam and crossbeam of the bracket should have sufficient bending strength to prevent component shaking and loosening of fasteners;
Heavy snow and snow covered areas: Increase the structural load-bearing capacity to avoid component damage caused by snow bending the support frame;
Mountainous area and mudflat project: concrete foundation or spiral ground pile shall be selected according to geological conditions to avoid support tilt caused by foundation settlement.

Reasonable safety margins in structural design are the first line of defense for stable operation of power plants.

2、 The anti-corrosion process determines the actual service life of the bracket
The bracket is exposed to sunlight all year round, facing rainwater, salt spray, and dust, and anti-corrosion technology is of utmost importance.
At present, the mainstream ground photovoltaic brackets are divided into two routes: hot-dip galvanized steel structures and aluminum alloys.

The thickness of hot-dip galvanized steel coating meets the standard, which can effectively isolate air moisture and is suitable for mountainous and inland ground power stations; Aluminum alloy has excellent corrosion resistance and is more suitable for high salt spray environments along the coast.

⚠️ Important reminder: Not only the main beam and crossbeam, but also the complete set of hardware accessories such as bolts, nuts, and grounding screws must have the same anti-corrosion level as the main body of the bracket. The anti-corrosion level of accessories is relatively low, which will preferentially corrode and cause the entire system to fail prematurely; Direct contact between dissimilar metals can also cause electrochemical corrosion, accelerating component damage.

3、 Complete set of fasteners and grounding system, safety critical that is easily overlooked
Many projects prioritize profiles over accessories, which is the root cause of high failure rates in the later stages.
Tightening accessories: bolts, spring washers, and flat washers are responsible for the locking function of the entire bracket. If the material does not meet the standard, there will be slipping and loosening. After thermal expansion and contraction, repeated wind and vibration, the screws will loosen and the bracket will be displaced.
Grounding system: Photovoltaic bracket grounding is a mandatory requirement for electrical safety. By relying on grounding screws and other grounding accessories, reliable electrical communication can be achieved between various support components, effectively releasing static electricity and reducing safety risks caused by lightning strikes. Unreliable grounding connection can cause electrical leakage hazards and threaten the safety of power station equipment and personnel.

Although the accessories are small, they directly affect the long-term reliability of the entire photovoltaic bracket system.

4、 Reasonable selection and standardized installation to reduce potential hazards in the later stage
Even the best bracket products cannot do without scientific selection and standardized construction.
According to the project scenario selection: mountainous, flat, seaside, the same set of support schemes cannot be directly applied;
Component tilt angle optimization: Reasonable tilt angle balances structural safety and annual power generation;
Strictly tighten the bolts according to the torque specified in the drawings during installation, and ensure proper acceptance of the grounding point during construction;
Regular inspections after completion, with a focus on checking whether fasteners are loose and whether components are corroded.

Summary
Photovoltaic power plants operate stably for a long time, and components and inverters are highly valued. However, photovoltaic brackets, as the underlying foundation, must not be ignored. The four dimensions of mechanical structure, anti-corrosion technology, hardware fasteners, and grounding safety together constitute the reliability of the bracket.
When purchasing photovoltaic bracket projects, it is not enough to only compare unit prices, but also to comprehensively consider design capabilities, raw material quality, and accessory matching levels in order to ensure the stable completion of the 25 year design life of the photovoltaic power station.
If you have any inquiries regarding the selection of ground photovoltaic brackets, please feel free to contact us.