UFC 4-211-02N
10 January 2005
including change 3, 13 April 2007
Exterior lighting should be high-pressure sodium vapor where
practical and should be in accordance with UFC 3-530-01.
Provide power outlets in the hangar bays for task lights.
Avoid the use of explosion-proof overhead fixtures by providing
sealed, ventilated space above the finished ceiling.
2-5.3
Grounding.
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\ Provide the maintenance hangar with flush mounted, floor power ground
receptacles, each with a 19 mm (3/4-inch) diameter ground rod, located at a
minimum of 7.3 m (24 foot) centers across the centerline of the OH space.
Locate additional power ground receptacles around dedicated aircraft parking
areas to facilitate the use of grounding connections. When aircraft are parked
outside of the hangar, provide static ground receptacles on parking aprons.
Resistance to ground for ground power must not exceed 10 ohms maximum,
and for static ground, must not exceed 10,000 ohms in accordance with MIL-
HDBK-274 (AS), Electrical Grounding for Aircraft Safety and with NAVSEA OP5,
Ammunition and Explosives Ashore Safety Regulations for Handling, Storing,
No. 1/0 AWG minimum bare copper below the hangar floor and connected to the
facility grounding system. /1/
2-6
WEIGHT-HANDLING EQUIPMENT.
The monorail hoist should be in accordance with criteria in UFC 3-320-07N,
Weight Handling Equipment and should be of spark-proof construction with an
explosion-proof motor. Controls should be operable from the floor level and,
when electric, should meet the requirements indicated in paragraph 2-5.1.
2-7
FIRE PROTECTION.
The fire protection design should be in accordance with paragraph 1-10. Provide
the following features:
a. In the hangar bays, requirements of UFC 4-211-01N should be met.
b. Provide an automatic wet-pipe sprinkler system in ancillary spaces.
c. Provide manual and automatic fire alarm system reporting to the
base-wide system.
2-8
ENVIRONMENTAL.
Design should be in accordance with environmental protection regulations and
the requirements as follows:
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