Attachment 12
pavement, including those with a Portland cement concrete block at the surface, require
replacement.
A12.3.2. Evaluation of Existing Mooring Points for Resistance. The maximum resistance measured,
in accordance with IEEE Standard 142, Recommended Practice for Grounding of Industrial and
Commercial Power Systems, of existing grounding points, will not exceed 10,000 ohms under normally
dry conditions. If this resistance cannot be obtained, an alternative grounding system will be designed.
A12.4. Static Grounding Points for Army Fixed- and Rotary-Wing Facilities.
A12.4.1. Type. A static grounding point for Army facilities is a 3 meter [10 feet] rod with a closed eye
(see Air Force Tiedown, figure A12.12) except when installed in a hangar. Inside hangars, the static
ground point consists of a copperweld rod, attached to a bronze casting with a threaded connection, as
shown in Figure A12.9.
Figure A12.9. Army Grounding Point Inside Aircraft Hangars.
A12-13
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