Survey of Grounding, Bonding, and Shielding Practices.

In May 1974 detailed surveys were made of the grounding, bonding, shielding, and lightning protection networks in FAA facilities at Hartsfield International Airport, Atlanta, GA and in selected AF facilities at Robins AFB, GA and Aiken AFS, Aiken, SC. At the facilities the earth electrode system, the lightning protection system, fault protection and signal ground networks, bonding practices, and facility shielding were evaluated. Similarly, the equipments in each facility were examined to determine the grounding procedures used for both low frequency and high frequency signals, the type of signal interfacing used, the bonding practices employed, and the type of shielding available for both personnel protection and EMI control. This report presents the findings of the surveys, compares the existing networks and practices with those which have been recommended for new facilities, and suggests corrective measures for the noted deficiencies. Author