1.Unlevel Foundation
Foundation tilt >3° causes rail stress concentration.
Solution: Use a laser level to calibrate.
2.Over-Tightened Bolts
Can deform aluminum rails.
Torque specs: ≤25N·m (M8 bolts: 15-20N·m recommended).
3.Improper Grounding
Lightning strike risk increases by 300%.
Requirement: All strings must be grounded with clips.
4.Inadequate Corrosion Protection
Coastal projects require ≥80μm zinc-coated components.
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