Figure 6-29. - Lamp watts per square foot chart.
The installation of security lighting is set forth in United States Navy Physical Security Manual, OPNAVINST 5530.14. It provides specifications on searchlights and minimum footcandle requirements under given situations. The illumination of boundaries, entrances, structures, and areas must be according to the security manual.
Each security lighting system is designed to meet a particular need of the activity. The design is such that it provides the security required at maximum economy.
Multiple circuits may be used to advantage here. The circuits are so arranged that the failure of any one lamp will not darken a long section of the area. The protective lighting system should be independent of other lighting systems and protected from interruption in case of fire.
The switches and controls of the system should be locked and/or guarded at all times. The most effective means is to have them located in a key guard station or central station similar to the system used in intrusion alarm central station installations.
In general, any security area provided with protective lighting should have an emergency power source located within that security area. The emergency power source should be adequate to sustain all security requirements and other essential service required within the security area. Provisions should be made to ensure the immediate availability of theContinue Reading