The IP rating standard gives an indication of protection of ingress from foreign object (first figure) for example dust, and the second figure gives an indication of protection of ingress of water. see below. Although the manufacturer can design the enclosure to meet the standard, the elements that are in theMore …

Perimeter Security Measures. A. Perimeter protection is the first line of defense in providing physical security for a facility. This can be accomplished by installing fences or other physical barriers, outside lighting, lockable gates, intrusion detectors, or a guard force. Perimeter protection also includes walls, lockable doors and windows, barsMore …