Lightning Protection Fundamentals
Lightning protection systems protect buildings and occupants:
- External lightning protection (LPS)
- Internal lightning protection (surge protection)
- Risk assessment and zone analysis
- IEC 62305 standards compliance
- Protection level classification (LPS I-IV)
External Lightning Protection
External systems capture lightning and safely conduct it to ground:
- Air terminals (lightning rods) placement
- Down conductor routing and fastening
- Spacing calculations (cone of protection)
- Metallic structure utilization
- Testing and compliance verification
Grounding & Earthing Design
Proper grounding ensures lightning current dissipation:
- Grounding electrode design
- Soil resistivity measurements
- Multiple electrode methods
- Earth resistance targets (< 10 ohms)
- Testing and documentation procedures
Bonding & Equipotential Surfaces
Bonding prevents dangerous potential differences:
- Equipotential bonding of metallic components
- Main earthing bar location and sizing
- Bonding of building services (pipes, ducts)
- Lightning current distribution
- Maintenance and periodic testing
Surge Protection Devices (SPD)
Internal surge protection complements external systems:
- SPD installation at system entry points
- Coordination of multiple SPD stages
- Power line surge protection
- Signal line surge protection
- SPD testing and replacement monitoring
ASDV Lightning Protection Design
ASDV designs comprehensive lightning protection and earthing systems for Saudi facilities, including external protection, grounding design, surge protection, and full IEC 62305 compliance. Contact us for lightning protection design.