1. Mandatory Semi‑Annual Inspection Frequency
- Lightning protection systems for explosive environments must be inspected at least twice a year.
- International and national regulations mandate this semi‑annual schedule.
- Ensures full operational readiness during peak storm seasons.
2. Critical Pre‑Storm Season Assessments
- First inspection scheduled just before the local thunderstorm season.
- Verifies air terminals, down conductors, and grounding systems are free from damage or corrosion.
- Ensures structural integrity to safely intercept and dissipate lightning strikes.
3. Post‑Storm Season Integrity Checks
- Second inspection conducted after the thunderstorm season concludes.
- Identifies and repairs degradation, loosening, or corrosion caused by extreme weather.
- Prevents system failure during the subsequent year's lightning activity.
4. Specialized Testing for Grounding Resistance
- Each semi‑annual assessment includes rigorous electrical testing.
- Grounding resistance must remain well below 10 ohms for safe dissipation.
- Immediate remedial work required if resistance is too high to prevent dangerous side flashes.