K12 Defense Consultants

(via US Army Corps of Engineers)

The Department of State’s (DOS) physical security concept is to create a layered or “tiered” defensive system which consists of both active and passive perimeter barriers to delay intruders. The Department has a performance standard and testing procedure for both active entrance barriers and passive perimeter barriers designated as “vehicle-impact rated barriers,” or “anti-ram barriers.” The current standard is SD-STD-02.01, Vehicle Crash Testing of Perimeter Barriers and Gates, Revision A, dated March 2003.

This test standard further rates the anti-ram barriers within three categories: K12, K8 and K4. The rating of the barrier is determined when a 15,000 lb. (6810 kg) gross-weight vehicle impacts a barrier from a perpendicular direction. A K12 rating is achieved when a vehicle traveling at a nominal speed of 50 mph (80 kph) is successfully arrested by the barrier from the perpendicular direction. A K8 rating is achieved for a nominal speed of 40 mph (65 kph); and, a K4 rating is achieved for a nominal speed of 30 mph (50 kph). In order to be DOS certified at any rating, the penetration of the cargo bed must not exceed 1 meter beyond the pre-impact inside edge of the barrier.

We can fix your Delta barrier problems, your Nasatka barrier problems, or problems you are having with any other hydraulic barrier. Give us a call at (480) 898-1272.