INTRUSION DETECTION BARRIER

摘要

An intrusion detection barrier is provided comprising inner and outer coils defined by helical barbed tape. The inner coil comprises an intrusion detection cable securely retained and protected therein. The inner coil is supported centrally within the outer coil by radially extending supports which may be flat straps which are effective to transmit vibrations from the outer coil to the inner coil. The straps may be welded or otherwise mechanically connected to both the inner and outer coils, and may further be provided with clusters of barbs thereon.