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Lightning strike and abnormal voltage surge are one of the main sudden failure factors of outdoor power facilities in tropical Southeast Asia. Many project teams only pay attention to main equipment configuration, ignoring standardized lightning protection and grounding design, resulting in irreversible damage to transformers and distribution equipment after thunderstorms.
Lightning protection and grounding are the most basic defensive barriers of outdoor power system. The design logic is unified and clear, focusing on voltage diversion, current release and overall equipotential protection.
Scientific lightning protection and grounding design, together with post thunderstorm targeted inspection, can effectively resist tropical thunderstorm risks and ensure the safety and continuity of outdoor power facilities.
| Protection system | Core function | Key construction standard | Outdoor application reminder |
|---|---|---|---|
| Lightning arrester system | Induced surge release, overvoltage suppression | Matching voltage level, fixed installation firmly | Regularly check aging and damage after thunderstorm |
| External lightning rod | Direct lightning diversion and coverage protection | Reasonable height and coverage radius | Avoid sheltering by tall trees and buildings |
| Integrated grounding network | Leakage current and lightning current safe discharge | Ground resistance within qualified range | Humid area regular detection, coastal anti-corrosion treatment |
| Equipotential connection | Prevent potential difference damage between equipment | Unified connection of shell and support | All outdoor power equipment must be connected |