A perimeter security system may need to be installed at facilities requiring a very high level of protection. For such cases, the Cobra double concertina barrier is used. Today, the Cobra razor-cut barrier offers a more effective protection technology than similar Egoza concertina systems. The Cobra barrier is suitable for strategic facilities, nuclear power plants, large industrial sites, and other high-security locations.
Cobra is a structure based on Egoza razor wire, as in other types of concertina barriers. The Cobra barrier consists of two Egoza security coils sharing a common longitudinal axis but having different diameters. Both coils form cylindrical structures, with one placed inside the other. The system is mounted on vertical metal brackets. https://security-patents.com/en The concertina coils may be fixed on standard brackets or installed on independently rotating mechanisms.