UFC 3 -520-01
June 10, 2002
Figure 10-1. Purpose of Static Grounding
Charged Body
Uncharged Body
Insulated
Insulated
From Ground
From Ground
Ground
A. Charged and uncharged bodies insulated from ground
Both Bodies Bonded
Bond Wire
Together Will Share
the Charge and Have
No Potential Difference
Ground
B. Both insulated bodies share the same charge
Both Bodies Bonded
Bond Wire
and Grounded to Allow
Charge to Flow to Ground
Ground
C. Both bodies are grounded and have no charge
10-3.2
For the Army and Navy, refer to NFPA 77, Static Electricity, criteria for static
protection requirements.
10-3.3
For the Air Force, refer to AFI 32 -1065 and NFPA 77 for static protection
requirements.
10-4
COMMUNICATIONS SYSTEMS GROUNDING AND BONDING.
10-4.1
Introduction.
10-4.1.1 Most discussion of grounding relates to compliance with the NEC. The NEC's
purpose is to establish safety requirements related to grounding. Communications
systems grounding and bonding is an additional level of grounding and bonding
specifically for communications systems to accomplish the following:
Lower the system ground reference po tentials.
Augment electrical bonding.
Minimize electrical surge effects and hazards.
10-2
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