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 MIL-HDBK-232A
4.2.1 Source. The source of power to a facility will determine the need for
special treatments, particularly isolation and filtering. If at all
possible, the prime generating source should be totally contained within the
controlled space (CS). Since this is seldom possible, the designer must
determine if power is a dedicated service feed or shared with other
activities. That information will aid in the design of other elements of the
power system.
4.2.2 Power systems. Power within a facility normally consists of a
nontechnical system and a technical system (see figure 2).
4.2.2.1 Nontechnical system. The nontechnical system is provided to power
air-conditioning, heating, lighting, and housekeeping functions. Normally,
no special treatment is required other than the provisions of the NEC.
However, it should be installed so that no equipment associated with the
mission can be connected to it. The ancillary equipment served by the
nontechnical system is transient producing. This equipment should he
installed with sufficient electrical separation and isolation to prevent
adverse effects on mission equipment. (See MIL-HDBK-411.)
POWER SOURCE
.....................
FACILITY LOAD
TECHNICAL LOAD
NONTECHNICAL LOAD
MISSION EQUIPMENT, LIGHTING,
LIGHTING, VENTILATION, AIR-
VENTILATION, AND AIR-CONDITION-
CONDITIONING EQUIPMENT NOT
ING EQUIPMENT REQUIRED FOR
REQUIRED FOR FULL CONTINUITY
FULL CONTINUITY OF OPERATIONS
OF OPERATIONS
TECHNICAL UTILITY LOAD
TECHNICAL ELECTRONIC LOAD
VITAL LIGHTING, VENTILATION,
CONTINUOUS SYNCHRONOUS
AIR-CONDITIONING EQUIPMENT
OPERATION OF MISSION EQUIPMENT
REQUIRED FOR CONTINUITY OF
OPERATIONS
FIGURE 2.
Power distribution
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