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means, if provided, are in accordance with Chapter 6 of NFPA 20. Also assure that feeder
routing and installation complies with all requirements of this chapter. Power supplies for foam
system control panels and fire alarm system panels must be in accordance with NFPA 72,
National Fire Alarm Code.
8. SITE UTILITY DRAWINGS.
Fire Protection Water System. Most aircraft hangar fire protection systems will require
large volumes of water at high pressures. With few exceptions, water supplies are delivered to
the hangar through separate fire protection water mains supplied by fire pumps taking suction
from one or more ground level water storage tanks. In many cases, an existing fire protection
water system can supply demands of the new hangar fire protection systems. In such cases, the
drawings will indicate extensions of existing water distribution systems. Otherwise, a new water
storage, pumping and distribution system will be required. The site utility drawings need to
include provisions for the water storage tanks and underground piping system. The fire pump
facility, and the pumps provided therein, will be included with the fire protection drawings. Site
utility drawings will also indicate locations of fire hydrants as required by applicable criteria. If
the existing domestic water system is capable of supplying hose stream demands, fire hydrants
should be supplied by the domestic water system rather than the fire protection system supplying
hangar foam systems. The means for automatic filling of fire protection water storage tanks
should be detailed on the site utility drawings.
9.1 Corps of Engineers Guide Specifications (CEGS). As applicable, CEGS will be used to
delineate technical requirements of the hangar fire protection system. CEGS for various portions
of the overall fire protection system are listed below. It is important to verify that the
specification is consistent with what is shown on the drawings. To minimize the potential for
conflicts, it is recommended that system requirements be delineated either in the specifications or
on the drawings, with little or no redundancy.
a. CEGS-15320, Fire Pumps.
b. CEGS-15355, AFFF Fire Protection System.
c. CEGS-16721, Fire Detection and Alarm System.
9.2 Editing and Submittal. Edit or mark up CEGS as early as practicable during the project
design. Use care when customizing guide specifications, particularly with regard to modifying or
deleting specific provisions. The preliminary or 60% design submittal will include a mark-up,
either by hand or with word processing techniques, of the original CEGS. It is essential that the