Intelligent controllers, high-power computers, data centres – computers, automation and telecommunications systems perform many important jobs in both the private and the professional world. Our lives are totally reliant on technological support, and hundreds of billions of euros is spent each year building up that support. Vital computer-assisted systems such as fire alarms, as well as industrial plants fitted with modern automation equipment, are highly sensitive and extremely vulnerable to electrical surges. Just one lightning strike nearby, or an electrical failure in the power supply, and modern control equipment is destroyed. The economic consequences can be devastating: plant standstill, heavy losses on account of production downtime, data loss, repairs and system faults can potentially drive a company to bankruptcy. IFrame